Разделы схем — 34 (всего 127)
ACTIVE BODYWORKS AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ELECTRONIC SUSPENSION ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS NAVIGATION POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
ACTIVE BODYWORKS Active Bodyworks Wiring Diagram for Cadillac CTS 2012 List of elements for Active Bodyworks Wiring Diagram for Cadillac CTS 2012: 47 (left front of engine compt) engine control module (ecm) (top right of engine) g132 3.0l & 3.6l 6.2l Automatic transmission Batt+ volt Body control module (bcm) (center of dash) Computer data lines system Control solenoid valve assembly Data bus+ Data bus- Front upper beam pedestrian impact detection sensor G102 (right front of engine compt) Gnd Ground Hi spd gmlan serial data bus+ Hi spd gmlan serial data bus- Hi spd gmlan serial data bus- x3 Hood hi ref Hood lo ref Hot at all times Hot w/ pwr/trn relay energized J201 Left active hood hinge actuator Lo ref Module sig Ped pro fuse 10a Pedestrian impact detection module Pnk Rear upper beam pedestrian impact detection sensor Right active hood hinge actuator Sensor lo ref Sensor sig Serial data Serial data + Serial data - Shorting bar Tan Toss/brk vac rly fuse 10a Transmission control module (tcm) Underhood fuse block (right front of engine compt) Vehicle speed sensor (6.2l m/t) (right rear of transmission) Vehicle speed sensor (except 6.2l m/t) (left rear of transmission) Vss hi sig Vss high sig Vss lo sig X175
AIR CONDITIONING Automatic A/C Wiring Diagram (1 of 2) for Cadillac CTS 2012 List of elements for Automatic A/C Wiring Diagram (1 of 2) for Cadillac CTS 2012: 71 (hvac assembly harness, near driver air temperature actuator) (hvac assembly harness, near mode actuator) (left kick panel) g200 (or pnk) (right kick panel) g201 5-volt ref 3 Air quality sensor (right radiator support) Auto switch Batt pos volt Blower motor (right side of hvac module) Blower motor control module (lower left side of blower motor) Blower motor switch Blwr fuse 40a Blwr mtr spd ctrl Blwr mtr sply volt Body control module (bcm) (center of dash) Computer Computer data lines system Data lines system Defogger switch Defogger system Disply fuse 15a Dr ctrl circuit Dr pos sig Dr sig Driver air temperature actuator (left side of hvac module) Evaporator temperature sensor (right side of evaporator case) G201 (right kick panel) Gnd Hot at all times Hot w/ ignition 1 relay energized Hvac control module (center of dash) Ign Ign 3 volt Isrvm fuse 7.5a J201 J202 J211 J225 J230 Left air temperature switch Lo dr pos sig Lo ref Lo spd gmlan Logic Low ref Mode actuator (left side of hvac module) Mode dr ctrl Mode switch Passenger air temperature actuator (right side of hvac module) Pnk Pos sig Power distribution system Radio/hvac control Rec dr ctrl Rec dr pos sig Recirculation actuator (right side of hvac module) Recirculation switch Right air temp Right air temperature switch Rly ctrl Sens sig Spd sig Temp dr ctrl Underhood fuse block (right front of engine compt) W/o spo dvd W/spo dvd X204 X208 X225 X270 Automatic A/C Wiring Diagram (2 of 2) for Cadillac CTS 2012 List of elements for Automatic A/C Wiring Diagram (2 of 2) for Cadillac CTS 2012: 51 (3.6l & 3.0l) (6.2l) (6.2l) (3.0l & 3.6l) (or 2761) 3.0l & 3.6l 3.6l & 3.0l 5-volt ref 5-volt ref 1 6.2l 87a A/c cltch fuse 10a A/c cmprsr cltch relay A/c compressor clutch (6.2l: lower right front of engine) (except 6.2l: lower left front of engine) A/c compressor clutch rly ctrl A/c refrigerant press sens sig A/c refrigerant pressure sensor (on a/c refrigerant line) Ambient air temperature sensor (under front bumper, near front grille) Charge air cooler (cac) coolant pump Charge air cooler (cac) coolant pump relay (6.2l) Charge air cooler coolant pump ctrl Computer data lines system Ect sens sig Emis 2 fuse 15a Engine control module (ecm) (6.2l: right rear of engine compt) (except 6.2l: left front of engine compt) Engine coolant temperature (ect) sensor (except 6.2l: side of left cylinder head) (6.2l: left front of engine) Engine cooling fan Engine cooling fan resistor Fan 1 fuse 30a 40a Fan 1 relay Fan 2 fuse 30a (3.6l & 3.0l) 40a (6.2l) Fan 2 relay Fan s/p relay G101 (left front strut tower) G104 (near right headlight) G132 (top right of engine) Hi spd cooling fan rly ctrl Hi spd gmlan serial data bus+ Hot at all times Hot w/ pwr/ trn relay energized Inclr fuse 10a Inside air temperature sensor (center of dash) Left engine cooling fan (left side of radiator) Lo ref Lo spd cooling fan rly ctrl Pnk Power distribution system Right engine cooling fan (right side of radiator) Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Sunload sensor (top center of dash) Tan Underhood fuse block (right front of engine compt) X130 X204
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram (1 of 2) for Cadillac CTS 2012 List of elements for Anti-lock Brakes Wiring Diagram (1 of 2) for Cadillac CTS 2012: 56 (except 6.2l) brake booster pump relay (info not available) (left rear wheel hub assembly) left rear wheel speed sensor (wss) (top right of engine) 12 volt ref 5 volt ref Abs fuse 30a Abs mtr fuse 50a Auxiliary brake booster pump Battery positive voltage Brake booster pump rly ctrl Brake booster vacuum sensor sig Brake pressure modulator valve Brk vac pump fuse (except 6.2l) 20a C x101 Can bus high Can bus high serial data Can bus low Can bus low serial data Computer data lines system Disply fuse 10a Electronic brake control module (ebcm) (right front corner of engine compt) G102 (right front of engine compt) G110 (near abs module) G132 G200 (left kick panel) Gmlan serial data bus+ Gmlan serial data bus- Gnd Hot at all times Hot w/ ign 1 relay energized Ign J205 Left front wheel speed sensor (wss) (left front wheel hub assembly) Lh frt wheel spd sens sig Lh rr wheel spd sens 12v ref Lh rr wheel spd sens sig Low ref Nca Power distribution system Rh frt wheel spd sens sig Rh rr wheel spd sens 12v ref Rh rr wheel spd sens sig Right rear wheel speed sensor (wss) (right rear wheel hub assembly) Serial data communication enable Steering wheel position sensor (top of steering column) Tan Toss/brk vac relay fuse (except 6.2l) 10a Underhood fuse block (right front of engine compt) Variable effort steering actr ctrl Variable effort steering actr sply volt Vehicle speed signal X101 X104 X202 Yaw rate & lateral acceleration sensor (under center console) Anti-lock Brakes Wiring Diagram (2 of 2) for Cadillac CTS 2012 List of elements for Anti-lock Brakes Wiring Diagram (2 of 2) for Cadillac CTS 2012: 58 (on brake fluid reservoir) brake fluid level switch 5 volt ref 6.2l A/t Abs ind Body control module (bcm) (center of dash) Brake booster vacuum sensor (except 6.2l) (on booster) Brake ind Brake pedal position sensor (top of brake pedal) Brake position sensor signal Computer data lines system Driver information center (dic) display Engine control module (ecm) (except 6.2l: left front of engine compt) (6.2l: right rear of engine compt) Except 6.2l G102 (right front of engine compt) G200 (left kick panel) G402 (left rear shock tower) Gnd High spd gmlan serial data+ High spd gmlan serial data- High speed gmlan serial data bus+ High speed gmlan serial data bus- Inflatable restraint steering wheel module coil (top of steering column) Instrument panel cluster (ipc) J201 J240 J285 (a/t) (steering column harness, near branch for body control module) J288 J290 (steering wheel harness) Left steering wheel control switch (6.2l) Logic Low ref Low ref x1 Low spd gmlan serial data Nca Park brake switch (on park brake assembly) Park brk sw sig Radio/hvac control (except 6.2l) Remote radio ctrl sply volt Right front wheel speed sensor (wss) (right front wheel hub assembly) Right steering wheel control switch Seek Seek down Sound systems Steering wheel ctrls sig Stp lmp sw sig Tan Traction control off ind Traction control switch Traction ctrl sw sig Transmissions & cruise control systems Transmissions system Variable effort steering actuator (power steering rack assembly) Voice Vol + Vol - Vsc ind X104
ANTI-THEFT Forced Entry Wiring Diagram (1 of 3) for Cadillac CTS 2012 List of elements for Forced Entry Wiring Diagram (1 of 3) for Cadillac CTS 2012: 78 (body harness, near inline connector x700) j390 (center of dash) body control module (bcm) (or 5797) Antenna clock Antenna data Antenna low Antenna sig Antenna sply Computer data lines system Coupe Data bus+ Data bus- Disply fuse 10a Door handle keyless entry antenna Driver door handle switch (sedan/wagon) Drv door unlck Drv sw sig Exterior lights system Fuel door release actuator (w/ remote control) (right rear of luggage compt) G102 (right front of engine compt) G200 (left kick panel) G201 (right kick panel) G401 (right rear shock tower) Gnd Headliner keyless entry antenna (wagon) (center rear of roof) Hood ajar sw Hood ajar switch (w/ remote start) Hood sw sig Horn rly ctrl Horns system Hot at all times Ignition sw sig J394 J396 (body harness, near branch to inflatable restraint sensing & diagnostic module) J430 J510 J710 J810 Left keyless entry antenna Left rear door handle switch (sedan/wagon) Left rear door latch (sedan/wagon) (left rear door) Liftgate ajar sw Low ref Lr door ajar sw Lr door open sw Lr dr handle sw Nca Park lp sply Pass sw sig Pnk Power distribution system Rear compartment keyless entry antenna Rear compartment lid latch Rear fuse block (right rear of luggage compt) Release ctrl Remote control door lock receiver (rcdlr) (w/ passive entry) (sedan/coupe: right side of rear shelf) (wagon: left rear of roof) Right rear door handle switch (sedan/wagon) Right rear door latch (sedan/wagon) (right rear door) Rke/pass key/mdl fuse 10a Rr door ajar sw Rr dr handle sw Sedan Sedan & wagon Sedan/wagon Serial data Shift interlock system Shift pos sig Tan Trunk, tailgate, fuel doors system Underhood fuse block (right front of engine compt) X235 X260 X408 X425 X500 X507 X700 X800 Forced Entry Wiring Diagram (2 of 3) for Cadillac CTS 2012 List of elements for Forced Entry Wiring Diagram (2 of 3) for Cadillac CTS 2012: 36 (coupe) driver door control module (driver's door) driver door latch Center console active keyless entry antenna (w/ keyless entry) Center console passive keyless entry antenna (under floor console) Computer data lines system Coupe Data sig Driver exterior door handle switch Driver information center (dic) display Driver interior door handle switch G200 (left kick panel) G201 (right kick panel) Instrument panel cluster (ipc) J201 J510 J517 J617 Lock sig Logic Low ref Passenger door control module (coupe) Passenger exterior door handle switch Passenger interior handle switch Pnk Right keyless entry antenna Security ind Sedan & wagon Sply volt Tan W/ passive entry W/o passive entry X237 X500 X505 X600 X605 Forced Entry Wiring Diagram (3 of 3) for Cadillac CTS 2012 List of elements for Forced Entry Wiring Diagram (3 of 3) for Cadillac CTS 2012: 64 (or tan) (right kick panel) g201 (right rear shock tower) g401 (sedan/wagon) lck relay (sedan/wagon) unlck relay (w/o deluxe interior lamp package) j510 (w/o deluxe interior lamp package) j610 (w/ deluxe interior lamp package) j605 87a Backlight lp Coax Computer data lines system Computer data lines system (or 294) Coupe Courtesy lp hi Courtesy lp lo Door latch Door lck Dr/lck fuse 15a Driver door lock/ window switch Drv door latch Drv door lck Drv door sw G200 (left kick panel) G201 (right kick panel) G401 (right rear shock tower) Gnd Hot at all times Ic 2 ctrl Interior lights system J505 (w/ deluxe interior lamp package) J610 Keyless entry antenna Lf door ajar Lf door handle Lf dr sw sig Lock Logic Nca Network 1 Network 2 Passenger door handle switch (sedan/wagon) Passenger door latch (passenger's door) Passenger door lock/ window switch Pdm fuse 15a Pnk Rear fuse block (right rear of luggage compt) Release sig Remote control door lock receiver (rcdlr) (w/o passive entry) (coupe or sedan: right side of rear shelf) (wagon: left rear of roof) Rf door ajar Rf door handle Rf dr sw sig Right front door handle keyless entry antenna Sedan/wagon Serial data Tan Trunk, tailgate, fuel doors system Unlock W/ passive entry W/o passive entry X500 X505 X600 X605 X607 Pass-Key Wiring Diagram for Cadillac CTS 2012 List of elements for Pass-Key Wiring Diagram for Cadillac CTS 2012: 33 Acc Acc volt Body control module (bcm) (center of dash) Computer data lines system Data bus + Data bus - Disply fuse 10a Driver information center (dic) display G102 (right front of engine compt) G200 (left kick panel) Gnd Hood ajar sw Hood ajar switch (w/ remote start) Hood sw sig Hot at all times Ignition switch Instrument panel cluster (ipc) J201 J205 J260 J270 Lock Logic Low gmlan Power distribution system Pwr moding fuse 2a Run Security ind Start Tan Theft deterrent control module (w/o remote start) (top of steering column) Underhood fuse block (right front of engine compt) X202
BODY CONTROL MODULES Body Control Modules Wiring Diagram (1 of 2) for Cadillac CTS 2012 List of elements for Body Control Modules Wiring Diagram (1 of 2) for Cadillac CTS 2012: 82 (right front of engine compt) g102 12-volt ref 5-volt ref A/t shift lk ctrl sol ctrl Acc Acc volt Anti-lock brakes system Automatic headlamp rly ctrl Battery positive volt Body control module (bcm) (center of dash) Computer data lines system Courtesy lamp rly ctrl Courtesy lamps sply volt Courtesy lamps sw on sig Cruise control & sound systems Cruise control system Cruise ctrl ind dimming sig Cruise ctrl sw sig Door locks system Drl ambient light sens sig Drv door unlock rly ctrl Exterior lights system Flash to pass sw sig key capture/column lk shift position sig Front fog lamp sw sig Fuel door release sol ctrl Gnd Hazard sw sig Hdlp dimmer sw hi beam sig Hdlp low beam sply volt Hdlp sw hdlps off sig Headlights system Hi spd gmlan serial data bus+ Hi spd gmlan serial data bus- Hot at all times I/p dimmer sw sig I/p lps dimmer sw sig Ic 2 ctrl Ignition switch Interior lights system J201 J260 (w/o remote start) Led backlight dimming ctrl Lf turn sig sw sig Lift glass/trunk mtr release ctrl Low ref Low spd gmlan serial data Off Off acc Off/run/crank volt Park lamp sw on sig Pnk Power windows system Pwr win master sw lkout rr sig Pwr wind master sw lkout sig Pwr wind master sw lr dn sig Pwr wind master sw lr up sig Pwr wind master sw rr dn sig Pwr wind master sw rr up sig Remote radio ctrl sply volt Remote shift selector sig Rf turn sig sw sig Rh tail lp outage detection sig Rr fog lp sw sig Run Sens sig Serial data communication enable Shift interlock system Sound systems Start Steering wheel controls sig Tan Tap up/tap down sw sig Traction control sw sig Transmission system Transmissions system Trunk, tailgate, fuel doors system Windshield washer sw sig Windshield wiper sw high sig Windshield wiper sw low ref Windshield wiper sw low sig Wiper/ washer system Wiper/washer system Body Control Modules Wiring Diagram (2 of 2) for Cadillac CTS 2012 List of elements for Body Control Modules Wiring Diagram (2 of 2) for Cadillac CTS 2012: 72 (right kick panel) g201 Acc volt Air conditioning & instrument cluster systems Anti-theft system Backup lamp sply volt Battery positive volt Bcm 1 fuse 10a Bcm 2 fuse 15a Bcm 3 fuse 10a Bcm 4 fuse 10a Bcm 5 fuse 10a Bcm 6 & 7 fuse 10a Body control module (bcm) (center of dash) Chmsl sply volt/stop lamp sply volt Computer data lines system Courtesy lamp rly ctrl Current sensor low ref Current sensor sig Current sensor sply volt Door locks system Drl sply volt Exterior lights system Fog lamp rly ctrl Front windshield wiper sw hi sig Gnd Hdlp rly ctrl Hdlp washer rly ctrl Headlamp rly ctrl Headlights system Hood ajar sw sig Hood closed sw sig Horn rly ctrl Horns system Hot at all times Ign 1 volt Ign 3 volt Instrument cluster system Interior lights system Left tail lamp outage detection sig Lf turn signal lamp sply volt Lh trailer turn sig rly ctrl Liftgate ajar sw sig Local interconnect network 3 Lr door ajar sw sig Lr door open sw sig Lr stop/turn lamp sply volt Park brake sw sig Park lamp sply volt Pnk Power distribution system Power tops system Rain sens low ref Rain sens sig Rear fuse block (right rear of luggage compt) Rf turn signal lamp sply volt Rh trailer turn sig rly ctrl Rr door ajar sw sig Rr fog lp rly ctrl Rr stop/turn lamp sply volt Rvc/snsr fuse 10a (or 2a) Serial data Sply volt Starting/charging system Stop lamp sw sig Tan Trunk, tailgate, fuel doors & door locks systems Underhood fuse block (right front of engine compt) Windshield washer rly ctrl Windshield wiper mtr prk sw sig Windshield wiper sw sig 2 Wiper/washer system X260
COMPUTER DATA LINES
3.0L VIN 5 3.0L VIN 5, Computer Data Lines Wiring Diagram (1 of 3) for Cadillac CTS 2012 List of elements for 3.0L VIN 5, Computer Data Lines Wiring Diagram (1 of 3) for Cadillac CTS 2012: 61 Audio amplifier (w/ surround amplifier) (sedan: rear of left rear strut tower) (wagon: left front of luggage compt) Coupe Data link connector (dlc) (left side of dash) Disply fuse 10a Driver door lock/window switch Driver window motor (driver's door) G200 (left kick panel) Hot at all times Hvac control module (center of dash) Inflatable restraint front passenger presence system (pps) sensor Inflatable restraint sensing & diagnostic module (sdm) (under center console) Inside rearview mirror (isrvm) (w/ infotainment system 1/2/3 & rearview camera) Instrument panel cluster (ipc) Interconnect network 1 Interconnect network 2 J200 J201 Left side object sensor (left end of rear bumper fascia) Liftgate module (lgm) (right side of liftgate) Lo spd gmlan Lo spd gmlan serial data Local interconnect network 1 Local interconnect network 2 Logic Memory seat module (msm) (if equipped) (under driver's seat) Passenger door lock/window switch Passenger window motor (front passenger's door) Radio Radio/hvac control Rear object sensor control module (coupe/sedan: right side of rear shelf) (wagon: center front of luggage compt) Remote control door lock receiver (rcdlr) (coupe/sedan: right side of rear shelf) (wagon: left rear of roof) Right side object sensor (right end of rear bumper fascia) Sedan & wagon Serial data Serial data lo spd gmlan Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Splice pack jx301 (body harness, near left front inflatable restraint side impact sensor) Tan Theft deterrent module (tdm) (w/o keyless engine start switch) (top of steering column) Underhood fuse block (right front of engine compt) W/ onstar W/ remote entry extended range passive lock control & keyless engine start W/ remote entry extended range passive lock control, keyless engine start & side obstacle detection sensor W/ remote entry extended range passive lock control, parking assist & keyless engine start W/ remote entry standard range lock control W/ remote entry standard range lock control & parking assist W/ remote entry standard range lock control & side obstacle detection sensor Wagon, w/ remote entry extended range passive lock control & keyless engine start Wagon, w/ remote entry standard range lock control X202 X207 X235 X300 X301 X307 X425 X500 X505 X600 X605 X900 3.0L VIN 5, Computer Data Lines Wiring Diagram (2 of 3) for Cadillac CTS 2012 List of elements for 3.0L VIN 5, Computer Data Lines Wiring Diagram (2 of 3) for Cadillac CTS 2012: 39 Acc wake up ser data Awd Body control module (bcm) (center of dash) Com enable Com enable serial data Coupe & sedan Data bus + Data bus - Data link resistor (left side of luggage compt) Electronic compass module (coupe/sedan: left side of rear shelf) (wagon: center front of luggage compt) Electronic suspension control (esc) module (left side of luggage compt) Except awd, w/ 0nstar & pedestrian protection Except awd, w/o pedestrian protection & onstar Fuel pump flow control module (right rear of luggage compt) Fuel system control module Interconnect network 3 J280 (i/p harness, near branch for clutch pedal position sensor) J309 Lo spd gmlan serial data Lo spd gmlan serial data x7 Local Parking brake control module Sedan & coupe Serial data Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Tan Underhood fuse block (right front of engine compt) W/ electronic parking brake W/ high intensity discharge W/ onstar W/ pedestrian protection W/o electronic parking brake W/o pedestrian protection Wagon X200 X235 X260 X402 X440 3.0L VIN 5, Computer Data Lines Wiring Diagram (3 of 3) for Cadillac CTS 2012 List of elements for 3.0L VIN 5, Computer Data Lines Wiring Diagram (3 of 3) for Cadillac CTS 2012: 43 A/t Acc wake up ser data Automatic transmission Awd Awd, w/o pedestrian protection & w/ onstar Bus + data Com enable Control solenoid valve assembly Data bus + Data bus - Data bus - acc wake up serial data Electronic brake control module (ebcm) (right front corner of engine compt) Engine control module (ecm) (left front of engine compt) Except awd, Except awd, w/o pedestrian protection & onstar Headlamp control module (front of engine compt) Hi serial data Hi spd gmlan ser data bus + Hi spd gmlan ser data bus - Lo serial data Lo spd gmlan serial data M/t Pedestrian impact detection module Serial data Serial data com enable Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Steering wheel position sensor (top of steering column) Tan Transfer case shift control module (right side of dash) Vehicle communication interface module (vcim) (behind right rear strut tower) W/ 0nstar & pedestrian protection W/ high intensity discharge W/ onstar W/ pedestrian protection W/o high intensity discharge W/o onstar X101 X104 X165 X202 X235 X260 Yaw rate & lateral accelerometer sensor (under center console)
3.6L VIN 3 3.6L VIN 3, Computer Data Lines Wiring Diagram (1 of 3) for Cadillac CTS 2012 List of elements for 3.6L VIN 3, Computer Data Lines Wiring Diagram (1 of 3) for Cadillac CTS 2012: 61 Audio amplifier (w/ surround amplifier) (sedan: rear of left rear strut tower) (wagon: left front of luggage compt) Coupe Data link connector (dlc) (left side of dash) Disply fuse 10a Driver door lock/window switch Driver window motor (driver's door) G200 (left kick panel) Hot at all times Hvac control module (center of dash) Inflatable restraint front passenger presence system (pps) sensor Inflatable restraint sensing & diagnostic module (sdm) (under center console) Inside rearview mirror (isrvm) (w/ infotainment system 1/2/3 & rearview camera) Instrument panel cluster (ipc) Interconnect network 1 Interconnect network 2 J200 J201 Left side object sensor (left end of rear bumper fascia) Liftgate module (lgm) (right side of liftgate) Lo spd gmlan Lo spd gmlan serial data Local interconnect network 1 Local interconnect network 2 Logic Memory seat module (msm) (if equipped) (under driver's seat) Passenger door lock/window switch Passenger window motor (front passenger's door) Radio Radio/hvac control Rear object sensor control module (coupe/sedan: right side of rear shelf) (wagon: center front of luggage compt) Remote control door lock receiver (rcdlr) (coupe/sedan: right side of rear shelf) (wagon: left rear of roof) Right side object sensor (right end of rear bumper fascia) Sedan & wagon Serial data Serial data lo spd gmlan Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Splice pack jx301 (body harness, near left front inflatable restraint side impact sensor) Tan Theft deterrent module (tdm) (w/o keyless engine start switch) (top of steering column) Underhood fuse block (right front of engine compt) W/ onstar W/ remote entry extended range passive lock control & keyless engine start W/ remote entry extended range passive lock control, keyless engine start & side obstacle detection sensor W/ remote entry extended range passive lock control, parking assist & keyless engine start W/ remote entry standard range lock control W/ remote entry standard range lock control & parking assist W/ remote entry standard range lock control & side obstacle detection sensor Wagon, w/ remote entry extended range passive lock control & keyless engine start Wagon, w/ remote entry standard range lock control X202 X207 X235 X300 X301 X307 X425 X500 X505 X600 X605 X900 3.6L VIN 3, Computer Data Lines Wiring Diagram (2 of 3) for Cadillac CTS 2012 List of elements for 3.6L VIN 3, Computer Data Lines Wiring Diagram (2 of 3) for Cadillac CTS 2012: 39 Acc wake up ser data Awd Body control module (bcm) (center of dash) Com enable Com enable serial data Coupe & sedan Data bus + Data bus - Data link resistor (left side of luggage compt) Electronic compass module (coupe/sedan: left side of rear shelf) (wagon: center front of luggage compt) Electronic suspension control (esc) module (left side of luggage compt) Except awd, w/ 0nstar & pedestrian protection Except awd, w/o pedestrian protection & onstar Fuel pump flow control module (right rear of luggage compt) Fuel system control module Interconnect network 3 J280 (i/p harness, near branch for clutch pedal position sensor) J309 Lo spd gmlan serial data Lo spd gmlan serial data x7 Local Parking brake control module Sedan & coupe Serial data Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Tan Underhood fuse block (right front of engine compt) W/ electronic parking brake W/ high intensity discharge W/ onstar W/ pedestrian protection W/o electronic parking brake W/o pedestrian protection Wagon X200 X235 X260 X402 X440 3.6L VIN 3, Computer Data Lines Wiring Diagram (3 of 3) for Cadillac CTS 2012 List of elements for 3.6L VIN 3, Computer Data Lines Wiring Diagram (3 of 3) for Cadillac CTS 2012: 43 A/t Acc wake up ser data Automatic transmission Awd Awd, w/o pedestrian protection & w/ onstar Bus + data Com enable Control solenoid valve assembly Data bus + Data bus - Data bus - acc wake up serial data Electronic brake control module (ebcm) (right front corner of engine compt) Engine control module (ecm) (left front of engine compt) Except awd, Except awd, w/o pedestrian protection & onstar Headlamp control module (front of engine compt) Hi serial data Hi spd gmlan ser data bus + Hi spd gmlan ser data bus - Lo serial data Lo spd gmlan serial data M/t Pedestrian impact detection module Serial data Serial data com enable Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Steering wheel position sensor (top of steering column) Tan Transfer case shift control module (right side of dash) Vehicle communication interface module (vcim) (behind right rear strut tower) W/ 0nstar & pedestrian protection W/ high intensity discharge W/ onstar W/ pedestrian protection W/o high intensity discharge W/o onstar X101 X104 X165 X202 X235 X260 Yaw rate & lateral accelerometer sensor (under center console)
6.2L VIN P 6.2L VIN P, Computer Data Lines Wiring Diagram (1 of 3) for Cadillac CTS 2012 List of elements for 6.2L VIN P, Computer Data Lines Wiring Diagram (1 of 3) for Cadillac CTS 2012: 61 Audio amplifier (w/ surround amplifier) (sedan: rear of left rear strut tower) (wagon: left front of luggage compt) Coupe Data link connector (dlc) (left side of dash) Disply fuse 10a Driver door lock/window switch Driver window motor (driver's door) G200 (left kick panel) Hot at all times Hvac control module (center of dash) Inflatable restraint front passenger presence system (pps) sensor Inflatable restraint sensing & diagnostic module (sdm) (under center console) Inside rearview mirror (isrvm) (w/ infotainment system 1/2/3 & rearview camera) Instrument panel cluster (ipc) Interconnect network 1 Interconnect network 2 J200 J201 Left side object sensor (left end of rear bumper fascia) Liftgate module (lgm) (right side of liftgate) Lo spd gmlan Lo spd gmlan serial data Local interconnect network 1 Local interconnect network 2 Logic Memory seat module (msm) (if equipped) (under driver's seat) Passenger door lock/window switch Passenger window motor (front passenger's door) Radio Radio/hvac control Rear object sensor control module (coupe/sedan: right side of rear shelf) (wagon: center front of luggage compt) Remote control door lock receiver (rcdlr) (coupe/sedan: right side of rear shelf) (wagon: left rear of roof) Right side object sensor (right end of rear bumper fascia) Sedan & wagon Serial data Serial data lo spd gmlan Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Splice pack jx301 (body harness, near left front inflatable restraint side impact sensor) Tan Theft deterrent module (tdm) (w/o keyless engine start switch) (top of steering column) Underhood fuse block (right front of engine compt) W/ onstar W/ remote entry extended range passive lock control & keyless engine start W/ remote entry extended range passive lock control, keyless engine start & side obstacle detection sensor W/ remote entry extended range passive lock control, parking assist & keyless engine start W/ remote entry standard range lock control W/ remote entry standard range lock control & parking assist W/ remote entry standard range lock control & side obstacle detection sensor Wagon, w/ remote entry extended range passive lock control & keyless engine start Wagon, w/ remote entry standard range lock control X202 X207 X235 X300 X301 X307 X425 X500 X505 X600 X605 X900 6.2L VIN P, Computer Data Lines Wiring Diagram (2 of 3) for Cadillac CTS 2012 List of elements for 6.2L VIN P, Computer Data Lines Wiring Diagram (2 of 3) for Cadillac CTS 2012: 34 A tan Acc wake up serial data Body control module (bcm) (center of dash) Coupe & sedan Data bus + Data bus - Data link resistor (right side of luggage compt) Electronic compass module (coupe/sedan: left side of rear shelf) (wagon: center front of luggage compt) Electronic suspension control (esc) module (left side of luggage compt) Fuel pump flow control module (right rear of luggage compt) Fuel system control module Interconnect network 3 J280 (i/p harness, near branch for clutch pedal position sensor) Lo spd gmlan serial data Local Parking brake control module Serial data com enable Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Tan Underhood fuse block (right front of engine compt) W/ electronic parking brake W/ high intensity discharge W/ onstar W/ pedestrian protection W/o 0nstar & pedestrian protection W/o electronic parking brake W/o pedestrian protection Wagon X200 X235 X260 X402 X440 X470 6.2L VIN P, Computer Data Lines Wiring Diagram (3 of 3) for Cadillac CTS 2012 List of elements for 6.2L VIN P, Computer Data Lines Wiring Diagram (3 of 3) for Cadillac CTS 2012: 35 A/t Acc wake up ser data Automatic transmission Bus + data Com enable Control solenoid valve assembly Data bus + Data bus - Electronic brake control module (ebcm) (right front corner of engine compt) Engine control module (ecm) (right rear of engine compt) Headlamp control module (front of engine compt) Hi serial data Hi spd gmlan ser data bus + Hi spd gmlan ser data bus - Lo serial data M/t Pedestrian impact detection module Serial data Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Steering wheel position sensor (top of steering column) Tan Vehicle communication interface module (vcim) (behind right rear strut tower) W/ high intensity discharge W/ onstar W/ pedestrian protection W/o 0nstar & pedestrian protection W/o onstar W/o pedestrian protection X104 X165 X171 X202 X235 X260 Yaw rate & lateral accelerometer sensor (under center console)
COOLING FAN Cooling Fan Wiring Diagram for Cadillac CTS 2012 List of elements for Cooling Fan Wiring Diagram for Cadillac CTS 2012: 41 (3.6l & 3.0l) (6.2l) (or 2761) 3.0l&3.6l 3.6l & 3.0l 6.2l 87a Charge air cooler (cac) coolant pump Charge air cooler (cac) coolant pump relay (6.2l) Charge air cooler coolant pump ctrl Computer data lines system Ect sens sig Emis 2 fuse 15a Engine control module (ecm) (except 6.2l: left front of engine compt) (6.2l: right rear of engine compt) Engine coolant temperature (ect) sensor (except 6.2l: side of left cylinder head) (6.2l: left front of engine) Engine cooling fan Engine cooling fan resister Fan 1 fuse 30a 40a Fan 1 relay Fan 2 fuse 30a (3.6l & 3.0l) 40a (6.2l) Fan 2 relay Fan s/p relay G101 (left front strut tower) G104 (near right headlight) G132 (top right of engine) Hi spd cooling fan rly ctrl Hi spd gmlan serial data bus+ Hi spd gmlan serial data bus- Hot at all times Hot w/ pwr/ trn relay energized Hvac control module (center of dash) Inclr fuse 10a Left cooling fan (left side of radiator) Lo ref Lo spd cooling fan rly ctrl Lo spd gmlan serial data Pnk Power distribution system Right cooling fan (right side of radiator) Tan Underhood fuse block (right front of engine compt) X130
CRUISE CONTROL Cruise Control Wiring Diagram (1 of 2) for Cadillac CTS 2012 List of elements for Cruise Control Wiring Diagram (1 of 2) for Cadillac CTS 2012: 62 (or 1550) (or 5380) (or 5381) (or 5382) (or tan) (top of brake pedal) 5v ref 3/5v ref 1 5v ref 4/5v ref 2 6.2l A/t App sens 1 sig App sens 2 sig Batt positive volt Bcm 6 & 7 fuse 10a Body control module (bcm) (center of dash) Brake pedal position sensor Brk sens low ref Brk sens sig Brk sens sply volt Computer data lines system Cruise ctrl ind sig Cruise ctrl sw sig Cruise ind Ctrl sply volt Driver information center display (dic) Ecm fuse 15a Engine control module (ecm) (6.2l: right rear of engine compt) (except 6.2l: left front of engine compt) Except 6.2l G132 (top right of engine) G201 (right kick panel) Gnd Hot at all times Hot w/ pwr/trn relay energized Instrument panel cluster (ipc) Logic Low ref M/t Power distribution system Rear fuse block (right rear of luggage compt) Sens low ref Sens sig position Sens volt ref 1 Serial data Serial data + Serial data - Stop lamp sw sig Tac motor ctrl close Tac motor ctrl open Tan Toss/brake vac rly fuse 10a Tp sens 1 sig Tp sens 2 sig Under hood fuse block (right front of engine compt) Vehicle spd sens Vehicle speed sensor (vss) (except 6.2l, m/t) (left rear of transmission) Vss hi sig Vss high sig Vss low ref X104 X202 X225 X260 Cruise Control Wiring Diagram (2 of 2) for Cadillac CTS 2012 List of elements for Cruise Control Wiring Diagram (2 of 2) for Cadillac CTS 2012: 35 (above accelerator pedal) accelerator pedal position (app) sensor (left rear of transmission) (6.2l m/t) vehicle speed sensor (vss) (or tan) (top center front of engine) (6.2l) throttle body (top center front of engine) (except 6.2l) throttle body (top of clutch pedal assembly) clutch pedal position (cpp) sensor 6.2l Automatic transmission Automatic transmission input shaft speed (iss) sensor Automatic transmission ouput shaft speed (oss) sensor Cancel Computer data lines system Control solenoid valve assembly Cruise ind Cruise switch Except 6.2l Inflatable restraint steering wheel module coil (top of steering column) Iss sig Iss/oss ctrl J127 J285 (a/t) (steering column harness, near branch for body control module) Left steering wheel control switch Oss sig Red Res + Ser data bus + Ser data bus - Set - Sound systems Tan Transmission control module (tcm) Transmissions system X104 X105 X240
DEFOGGERS Defoggers Wiring Diagram for Cadillac CTS 2012 List of elements for Defoggers Wiring Diagram for Cadillac CTS 2012: 58 60a Batt positive volt Battery positive Computer data lines system Coupe Dr/lck fuse 15a x1 Driver door lock/window switch Driver outside rearview mirror (at mirror) G104 (near right headlight) G200 (left kick panel) G201 (right kick panel) G401 (right rear shock tower) G402 (left rear shock tower) G408 (top of right "d" pillar) Gmlan serial data Gmlan serial data x1 Ground Heated mirror element Hot at all times Hvac control module (center of dash) J505 J510 J610 Left rear window defogger noise filter Logic Low speed gmlan serial data Nca Passenger door lock/window switch Passenger outside rearview mirror (at mirror) Pdm fuse 15a x2 Radio/hvac controls Rear defog fuse 40a Rear defog relay Rear defog rly ctrl Rear defogger grid inline fuse Rear defogger ind Rear defogger switch Rear fuse block (right rear of luggage compt) Rear window defogger grid Rear window defogger noise coil Rear window defogger relay Right rear window defogger noise filter Sedan Sedan & coupe Sedan & wagon Sply volt Tan Underhood fuse block (right front of engine compt) Wagon X163 X225 X500 X501 X505 X600 X601 X605 X902
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Cadillac CTS 2012 List of elements for Electronic Power Steering Wiring Diagram for Cadillac CTS 2012: 30 (right front of engine compt) 12v ref 6.2l Abs fuse 30a Actr sply volt Batt positive volt Can bus high Can bus low Computer data lines system Driver information center (dic) display Electronic brake control module (ebcm) (right front corner of engine compt) G102 G110 (near abs module) Gnd Hot at all times Ign Instrument panel cluster (ipc) J205 Logic Low speed gmlan serial data Serial data bus + Serial data bus - Steering actr ctrl Steering wheel position sensor (top of steering column) Tan Underhood fuse block (right front of engine compt) Variable effort steering actuator (power steering rack assembly) X104 X107 b X202
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram for Cadillac CTS 2012 List of elements for Electronic Suspension Wiring Diagram for Cadillac CTS 2012: 54 Batt Battery voltage Computer data lines system Display fuse 10a Driver information center (dic) display Electronic suspension control (esc) module (left side of luggage compt) G402 (left rear shock tower) Gmlan ser data + Gmlan ser data - Gmlan serial data Ground Hot at all times Instrument panel cluster (ipc) Left front shock absorber actuator (top of left front shock) Left front suspension position sensor (in left front strut tower) Left rear shock absorber actuator (top of left rear shock) Left rear suspension position sensor (in left rear strut tower) Lf damper ctrl Lf damper lo ref Lf position sens Lf sens vol ref Lf sensor low ref Lo spd gmaln serial data Logic Lr damper lo ref Lr damping ctrl Lr position sens Lr sens vol ref Lr sensor low ref Mrrtd fuse 30a Nca Power distribution system Radio/hvac control Rf damper ctrl Rf damper lo ref Rf position sens Rf sens vol ref Rf sensor low ref Ride control switch Right front shock absorber actuator (top of right front shock) Right front suspension position sensor (in right front strut tower) Right rear shock absorber actuator (top of right rear shock) Right rear suspension position sensor (in right rear strut tower) Rr damper lo ref Rr damping ctrl Rr position sens Rr sens vol ref Rr sensor low ref Spd data comm enable Tan Underhood fuse block (right front of engine compt) X163 X165 X180
ENGINE PERFORMANCE
3.0L VIN 5 3.0L VIN 5, Engine Performance Wiring Diagram (1 of 5) for Cadillac CTS 2012 List of elements for 3.0L VIN 5, Engine Performance Wiring Diagram (1 of 5) for Cadillac CTS 2012: 59 (above accelerator pedal) accelerator pedal position (app) sensor (on a/c refrigerant line) a/c refrigerant pressure sensor (top of clutch pedal assembly) clutch pedal position (cpp) sensor 5-v 1 ref 5-v 3 ref 5-v vol 1 ref 5-v vol 4 ref 5-volt ref 2 A/c compressor clutch rly ctrl A/c refrigerant pressure sens sig Absolute pressure sens Air conditioning system App sens 1 sig App sens 2 sig Batt pos vol Computer data lines system Cooling fan rly ctrl Cooling fans system Cruise control system E x420 Engine control module (ecm) (left front of engine compt) Evap conister vent sol ctrl Evaporative emission (evap) canister vent solenoid valve (left rear of fuel tank) Fuel level sens sig Fuel level sensor assembly (in fuel tank) Fuel pump Fuel pump & sender assembly (in fuel tank) Fuel pump rly ctrl Fuel tank pressure (ftp) sensor (in fuel tank) Fuel tank pressure sensor sig Gmlan serial data bus + Gmlan serial data bus - Ign vol J400 (fuel tank harness, near inline connector x420) Low ref Low speed cooling fan rly ctrl Manual transmission clutch position sens sig position Manual transmission clutch position sensor return Mil ctrl Nca Pnk Primary fuel level sensor Pwr/trn relay control Pwr/trn relay voltage Secondary fuel level sens sig Secondary fuel level sensor Sens low ref Starter relay coil control Starting/charging system Stop lamp switch signal Tan Wake-up sig X101 X104 X105 X105 computer data lines system X240 X402 X420 3.0L VIN 5, Engine Performance Wiring Diagram (2 of 5) for Cadillac CTS 2012 List of elements for 3.0L VIN 5, Engine Performance Wiring Diagram (2 of 5) for Cadillac CTS 2012: 57 (in fuel tank) fuel pressure sensor 5-v ref Batt vol Cnstr/ vent fuse 10a Computer data lines system Data bus + Data bus - Drain wire Driver information center (dic) Ecm fuse 15a Ecm fuse 20a Ecm/ tcm ign fuse 15a Emis 1 fuse 15a Emis 2 fuse 15a Engine coolant temperature sensor (left side of cylinder head) Even coils fuse 15a Exhaust bank 1 camshaft position (cmp) actuator solenoid valve (right front of cylinder head) Fuel pump Fuel pump flow control module (right rear of luggage compt) Fuel pump fuse 20a G402 (left rear shock tower) Gnd Hot at all times Hot w/ ign 1 relay energized Ign volt Instrument panel cluster (ipc) Intake bank 2 camshaft position (cmp) actuator solenoid valve (left front of cylinder head) Lines system computer data Lo spd gmlan Logic Low ref Malfunction ind lamp (mil) Nca Odd coils fuse 20a Pnk Power Power distribution system Pwr/ trn relay Rear fuse block (right rear of luggage compt) Relay ctrl Sens sig Serial data Sply System data lines computer System distribution Tan Toss/ brk vac rly fuse 10a Underhood fuse block (right front of engine compt) W/ electronically operated parking brake Wagon Wagon w/o electronically operated parking brake X104 X200 X225 X402 X420 X440 3.0L VIN 5, Engine Performance Wiring Diagram (3 of 5) for Cadillac CTS 2012 List of elements for 3.0L VIN 5, Engine Performance Wiring Diagram (3 of 5) for Cadillac CTS 2012: 43 (ignition coil/module harness, near inline connector x131) j165 (top of left cylinder bank) (top of right cylinder bank) 5-v 1 ref 5-volt 2 ref 5-volt reference 1 Actuator hi ctrl Actuator low ref Ckp sensor signal Ect sens sig Engine control module (ecm) (left front of engine compt) Engine oil pressure (eop) sensor (in oil filter housing) Exhaust bank 1 sig Exhaust bank 2 Exhaust bank 2 sig G130 (right rear of cylinder head) G131 (left rear of engine) High pressure fuel pump Ic 1 ctrl Ic 2 ctrl Ic 3 ctrl Ic 4 ctrl Ic 5 ctrl Ic 6 ctrl Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Ignition coil 5 Ignition coil 6 Intake bank 1 camshaft position (cmp) actuator solenoid valve (right front of cylinder head) Intake bank 1 sig Intake bank 2 Intake bank 2 sig J161 J162 J166 (near inline connector x132) Low ref Low reference Nca Oil press sens sig Spark plug Tan 3.0L VIN 5, Engine Performance Wiring Diagram (4 of 5) for Cadillac CTS 2012 List of elements for 3.0L VIN 5, Engine Performance Wiring Diagram (4 of 5) for Cadillac CTS 2012: 27 (top of left cylinder bank) fuel injector 1 (top of left cylinder bank) fuel injector 3 (top of left cylinder bank) fuel injector 5 (top of right cylinder bank) fuel injector 2 (top of right cylinder bank) fuel injector 4 (top of right cylinder bank) fuel injector 6 (top right side of engine) evaporative emission (evap) canister purge solenoid valve 5-v 1 ref Crankshaft position (ckp) sensor (right side of engine) Engine control module (ecm) (left front of engine compt) Exhaust bank 1 camshaft position (cmp) sensor (right front of cylinder head) Exhaust bank 2 camshaft position (cmp) actuator solenoid valve (left front of cylinder head) Exhaust bank 2 camshaft position (cmp) sensor (front of left cylinder head) Fuel inj 1 ctrl Fuel inj 2 ctrl Fuel inj 3 ctrl Fuel inj 4 ctrl Fuel inj 5 ctrl Fuel inj 6 ctrl G132 (top right of engine) Gnd Intake bank 1 camshaft position (cmp) sensor (right front of cylinder head) Intake bank 2 camshaft position (cmp) sensor (left front of cylinder head) Low ref Tan X160 X161 3.0L VIN 5, Engine Performance Wiring Diagram (5 of 5) for Cadillac CTS 2012 List of elements for 3.0L VIN 5, Engine Performance Wiring Diagram (5 of 5) for Cadillac CTS 2012: 48 (left exhaust pipe, after catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 2 (left exhaust pipe, before catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 1 (left rear of transmission) (m/t) vehicle speed sensor (vss) (right exhaust pipe, after catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 2 (right exhaust pipe, before catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 1 (top right of engine) g132 5-v 1 ref 5-v 3 ref 5-v 4 ref A tan Air temp sens sig Backup lamp sw C tan Duty cycle sig Engine control module (ecm) (left front of engine compt) Exterior lights system Frp sens sig Fuel rail pressure (frp) sensor G132 (top right of engine) Gnd Ho2s high sig Ho2s htr low ctrl Ho2s low sig Ho2s ref volt Humidity sens sig Knock sens 1 sig Knock sens 2 sig Knock sensor (ks) 1 (right side of engine block) Knock sensor (ks) 2 (left side of cylinder bank) Low ref Low reference Maf sens sig generator turn on sig low ref Manifold absolute pressure sensor (map) (top of engine) Map sens sig Multifunction intake air sensor (attached to the air cleaner assembly) Purge sol ctrl Ref volt Sens sig Starting/charging system Tac mtr ctrl-1 Tac mtr ctrl-2 Tan Throttle body (front center of engine) Tp sens 2 sig Transmission park/ neutral signal Transmissions system Vehicle sped sen X160
3.6L VIN 3 3.6L VIN 3, Engine Performance Wiring Diagram (1 of 5) for Cadillac CTS 2012 List of elements for 3.6L VIN 3, Engine Performance Wiring Diagram (1 of 5) for Cadillac CTS 2012: 59 (above accelerator pedal) accelerator pedal position (app) sensor (on a/c refrigerant line) a/c refrigerant pressure sensor (top of clutch pedal assembly) clutch pedal position (cpp) sensor 5-v 1 ref 5-v 3 ref 5-v vol 1 ref 5-v vol 4 ref 5-volt ref 2 A/c compressor clutch rly ctrl A/c refrigerant pressure sens sig Absolute pressure sens Air conditioning system App sens 1 sig App sens 2 sig Batt pos vol Computer data lines system Cooling fan rly ctrl Cooling fans system Cruise control system E x420 Engine control module (ecm) (left front of engine compt) Evap conister vent sol ctrl Evaporative emission (evap) canister vent solenoid valve (left rear of fuel tank) Fuel level sens sig Fuel level sensor assembly (in fuel tank) Fuel pump Fuel pump & sender assembly (in fuel tank) Fuel pump rly ctrl Fuel tank pressure (ftp) sensor (in fuel tank) Fuel tank pressure sensor sig Gmlan serial data bus + Gmlan serial data bus - Ign vol J400 (fuel tank harness, near inline connector x420) Low ref Low speed cooling fan rly ctrl Manual transmission clutch position sens sig position Manual transmission clutch position sensor return Mil ctrl Nca Pnk Primary fuel level sensor Pwr/trn relay control Pwr/trn relay voltage Secondary fuel level sens sig Secondary fuel level sensor Sens low ref Starter relay coil control Starting/charging system Stop lamp switch signal Tan Wake-up sig X101 X104 X105 X105 computer data lines system X240 X402 X420 3.6L VIN 3, Engine Performance Wiring Diagram (2 of 5) for Cadillac CTS 2012 List of elements for 3.6L VIN 3, Engine Performance Wiring Diagram (2 of 5) for Cadillac CTS 2012: 57 (in fuel tank) fuel pressure sensor 5-v ref Batt vol Cnstr/ vent fuse 10a Computer data lines system Data bus + Data bus - Drain wire Driver information center (dic) Ecm fuse 15a Ecm fuse 20a Ecm/ tcm ign fuse 15a Emis 1 fuse 15a Emis 2 fuse 15a Engine coolant temperature sensor (left side of cylinder head) Even coils fuse 15a Exhaust bank 1 camshaft position (cmp) actuator solenoid valve (right front of cylinder head) Fuel pump Fuel pump flow control module (right rear of luggage compt) Fuel pump fuse 20a G402 (left rear shock tower) Gnd Hot at all times Hot w/ ign 1 relay energized Ign volt Instrument panel cluster (ipc) Intake bank 2 camshaft position (cmp) actuator solenoid valve (left front of cylinder head) Lines system computer data Lo spd gmlan Logic Low ref Malfunction ind lamp (mil) Nca Odd coils fuse 20a Pnk Power Power distribution system Pwr/ trn relay Rear fuse block (right rear of luggage compt) Relay ctrl Sens sig Serial data Sply System data lines computer System distribution Tan Toss/ brk vac rly fuse 10a Underhood fuse block (right front of engine compt) W/ electronically operated parking brake Wagon Wagon w/o electronically operated parking brake X104 X200 X225 X402 X420 X440 3.6L VIN 3, Engine Performance Wiring Diagram (3 of 5) for Cadillac CTS 2012 List of elements for 3.6L VIN 3, Engine Performance Wiring Diagram (3 of 5) for Cadillac CTS 2012: 43 (ignition coil/module harness, near inline connector x131) j165 (top of left cylinder bank) (top of right cylinder bank) 5-v 1 ref 5-volt 2 ref 5-volt reference 1 Actuator hi ctrl Actuator low ref Ckp sensor signal Ect sens sig Engine control module (ecm) (left front of engine compt) Engine oil pressure (eop) sensor (in oil filter housing) Exhaust bank 1 sig Exhaust bank 2 Exhaust bank 2 sig G130 (right rear of cylinder head) G131 (left rear of engine) High pressure fuel pump Ic 1 ctrl Ic 2 ctrl Ic 3 ctrl Ic 4 ctrl Ic 5 ctrl Ic 6 ctrl Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Ignition coil 5 Ignition coil 6 Intake bank 1 camshaft position (cmp) actuator solenoid valve (right front of cylinder head) Intake bank 1 sig Intake bank 2 Intake bank 2 sig J161 J162 J166 (near inline connector x132) Low ref Low reference Nca Oil press sens sig Spark plug Tan 3.6L VIN 3, Engine Performance Wiring Diagram (4 of 5) for Cadillac CTS 2012 List of elements for 3.6L VIN 3, Engine Performance Wiring Diagram (4 of 5) for Cadillac CTS 2012: 27 (top of left cylinder bank) fuel injector 1 (top of left cylinder bank) fuel injector 3 (top of left cylinder bank) fuel injector 5 (top of right cylinder bank) fuel injector 2 (top of right cylinder bank) fuel injector 4 (top of right cylinder bank) fuel injector 6 (top right side of engine) evaporative emission (evap) canister purge solenoid valve 5-v 1 ref Crankshaft position (ckp) sensor (right side of engine) Engine control module (ecm) (left front of engine compt) Exhaust bank 1 camshaft position (cmp) sensor (right front of cylinder head) Exhaust bank 2 camshaft position (cmp) actuator solenoid valve (left front of cylinder head) Exhaust bank 2 camshaft position (cmp) sensor (front of left cylinder head) Fuel inj 1 ctrl Fuel inj 2 ctrl Fuel inj 3 ctrl Fuel inj 4 ctrl Fuel inj 5 ctrl Fuel inj 6 ctrl G132 (top right of engine) Gnd Intake bank 1 camshaft position (cmp) sensor (right front of cylinder head) Intake bank 2 camshaft position (cmp) sensor (left front of cylinder head) Low ref Tan X160 X161 3.6L VIN 3, Engine Performance Wiring Diagram (5 of 5) for Cadillac CTS 2012 List of elements for 3.6L VIN 3, Engine Performance Wiring Diagram (5 of 5) for Cadillac CTS 2012: 48 (left exhaust pipe, after catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 2 (left exhaust pipe, before catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 1 (left rear of transmission) (m/t) vehicle speed sensor (vss) (right exhaust pipe, after catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 2 (right exhaust pipe, before catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 1 (top right of engine) g132 5-v 1 ref 5-v 3 ref 5-v 4 ref A tan Air temp sens sig Backup lamp sw C tan Duty cycle sig Engine control module (ecm) (left front of engine compt) Exterior lights system Frp sens sig Fuel rail pressure (frp) sensor G132 (top right of engine) Gnd Ho2s high sig Ho2s htr low ctrl Ho2s low sig Ho2s ref volt Humidity sens sig Knock sens 1 sig Knock sens 2 sig Knock sensor (ks) 1 (right side of engine block) Knock sensor (ks) 2 (left side of cylinder bank) Low ref Low reference Maf sens sig generator turn on sig low ref Manifold absolute pressure sensor (map) (top of engine) Map sens sig Multifunction intake air sensor (attached to the air cleaner assembly) Purge sol ctrl Ref volt Sens sig Starting/charging system Tac mtr ctrl-1 Tac mtr ctrl-2 Tan Throttle body (front center of engine) Tp sens 2 sig Transmission park/ neutral signal Transmissions system Vehicle sped sen X160
6.2L VIN P 6.2L VIN P, Engine Performance Wiring Diagram (1 of 6) for Cadillac CTS 2012 List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (1 of 6) for Cadillac CTS 2012: 53 (center of dash) body control module (bcm) (not used) 5 volt ref 1 5-volt ref 1 5-volt ref 2 A/c compressor rly ctrl Acc wakeup serial data Accelerator pedal position (app) sensor (above accelerator pedal) Air conditioning system App sens 2 sig App sens sig Cnstr/ vent fuse 10a Computer data lines system Cooling fans system Ecm fuse 15a Ecm/tcm ign fuse 15a Engine control module (ecm) (right rear of engine compt) Evaporative emissions (evap) canister vent solenoid valve (left rear of fuel tank) Fan rly ctrl Ftp sig Fuel level sensor assembly (in fuel tank) Fuel lvl sens sig Fuel tank pressure (ftp) sensor (right rear of fuel tank) Hot at all times Hot w/ ign 1 relay energized Ign 1 volt J400 (fuel tank harness, near inline connector x420) Lo ref Low ref Main rly ctrl Mil ctrl Nca Pnk Pnk b Power distribution system Primary fuel level sensor (in fuel tank) Primary fuel rly ctrl Rear fuse block (right rear of luggage compt) Sec fuel lvl sens sig Secondary fuel level sensor Starter rly coil ctrl Starting/ charging system Stop lp sw sig Supercharger air inlet press sens sig Tan Underhood fuse block (right front of engine compt) Valve ctrl X101 X104 X184 X200 X225 X420 6.2L VIN P, Engine Performance Wiring Diagram (2 of 6) for Cadillac CTS 2012 List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (2 of 6) for Cadillac CTS 2012: 23 (left side of transmission) (m/t) skip shift solenoid Disply fuse 10a Ecm pwr fuse 15a Emis 1 fuse 15a Emis 2 fuse 15a Evaporative emission (evap) canister purge solenoid valve (top center front of engine) Even coils fuse 15a Heated oxygen sensor (ho2s) bank 1 sensor 1 (left exhaust pipe, before catalytic converter) Heated oxygen sensor (ho2s) bank 1 sensor 2 (left exhaust pipe, after catalytic converter) Heated oxygen sensor (ho2s) bank 2 sensor 1 (right exhaust pipe, before catalytic converter) Heated oxygen sensor (ho2s) bank 2 sensor 2 (right exhaust pipe, after catalytic converter) Hot at all times J142 J155 J185 Nca Odd coils fuse 20a Pnk Power distribution system Pwr/ trn relay Supercharger bypass valve solenoid (top front of engine) Tan Underhood fuse block (right front of engine compt) 6.2L VIN P, Engine Performance Wiring Diagram (3 of 6) for Cadillac CTS 2012 List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (3 of 6) for Cadillac CTS 2012: 51 (left rear of transmission) (m/t) reverse lockout solenoid (right rear of engine compt) engine control module (ecm) (right side of transmission) (m/t) backup lamp switch 5 volt ref 1 5-volt ref 1 5-volt ref 2 Actuator sig Backup lp sw sig Baro sens sig Barometric pressure (baro) sensor (top left side of engine) Clutch pedal position (cpp) sensor (m/t) (top of clutch pedal assembly) Computer data lines system Coolant pump ctrl Cooling fans system Data bus+ Data bus- Ect sens sig Engine control module (ecm) (right rear of engine compt) Engine coolant temperature (ect) sensor (left front of engine) Engine oil temp sig Evap ctrl G132 (top right of engine) Generator field duty cycle signal Generator turn on sig Gnd Ho2s hi sig b2s1 Ho2s hi sig b2s2 Ho2s htr lo ctrl b2s1 Ho2s htr lo ctrl b2s2 Ho2s lo sig b2s1 Ho2s lo sig b2s2 Iat sens sig Intake air temperature (iat) sensor (top left side of engine) Lo ref Low ref Manifold absolute pressure (map) sensor (top of engine) Map sens sig Nca Pnk Rly ctrl Sens sig Sig pos Skip shift sig Sol sig Starting/ charging system Tan Transmissions system Vehicle speed sensor (vss) (m/t) (left rear of transmission) Vss low sig X105 X240 6.2L VIN P, Engine Performance Wiring Diagram (4 of 6) for Cadillac CTS 2012 List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (4 of 6) for Cadillac CTS 2012: 33 (on a/c refrigerant line) a/c refrigerant pressure sensor (rear bumper fascia x420 harness, near branch to inline connector x430) j450 (right side of oil pan) engine oil level & temperature sensor (top center rear of engine) engine oil pressure (eop) sensor B (not used) B pnk Camshaft position (cmp) sensor Computer data lines system Crankshaft position (ckp) sensor (right rear of engine) Fuel injectors (top of right cylinder bank) Fuel pump & sender assembly (in fuel tank) G132 (top right of engine) G200 (left kick panel) Gnd Ign Instrument panel cluster (ipc) J449 (22 cm from rear body grommet) Knock sensor (ks) 1 (lower left side of engine) Knock sensor (ks) 2 (right side of engine) Logic Low engine oil pressure ind Malfunction indicator lamp Mass air flow sensor (maf)/ intake air temperature (iat) sensor (left front of engine compt) Nca Pnk Primary fuel pump Red Secondary fuel pump Serial data Tan X104 X136 X160 6.2L VIN P, Engine Performance Wiring Diagram (5 of 6) for Cadillac CTS 2012 List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (5 of 6) for Cadillac CTS 2012: 38 (front center of engine) throttle body (right rear of engine compt) engine control module (ecm) (top front of engine) supercharger air inlet pressure sensor (top of right cylinder bank) 5 volt ref 1 Fuel inj 2 ctrl Fuel inj 3 ctrl Fuel injectors (top of left cylinder bank) G135 (rear of right cylinder head) Ho2s hi sig b1s1 Ho2s hi sig b1s2 Ho2s lo sig b1s1 Ho2s lo sig b1s2 Ic 1 ctrl Ic 4 ctrl Ic 5 ctrl Ic 7 ctrl Ic 8 ctrl Ign Ign 1 volt Ignition coil 2 Ignition coil 4 Ignition coil 6 Ignition coil 8 J135 J137 J149 Ks 1 sig Ks 2 sig Low ref Nca Pnk Spark plug Tac mtr ctrl 1 Tac mtr ctrl 2 Tan X160 X161 6.2L VIN P, Engine Performance Wiring Diagram (6 of 6) for Cadillac CTS 2012 List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (6 of 6) for Cadillac CTS 2012: 57 (in fuel tank) fuel pressure sensor (right rear of luggage compt) fuel pump flow control module (top of left cylinder bank) 5 volt ref 1 5 volt ref 2 5v ref Batt volt Ckp sens sig Cmp sens sig Computer data lines system Data bus + Data bus - Drain wire Engine control module (ecm) (right rear of engine compt) Fscm fuse 30a Fuel inj 1 ctrl Fuel inj 4 ctrl Fuel inj 5 ctrl Fuel inj 6 ctrl Fuel inj 8 ctrl G132 (top right of engine) G136 (rear of left cylinder head) G401 (right rear shock tower) Gnd Ho2s htr lo ctrl b1s1 Ho2s htr lo ctrl b1s2 Hot at all times Iat sens sig Ic 2 ctrl Ic 3 ctrl Ic 6 ctrl Ign 1 volt Ignition coil 1 Ignition coil 3 Ignition coil 5 Ignition coil 7 J136 J138 J150 J423 (15 cm from fuel system control module) Low ref Maf sens sig Nca Nication enable serial data commu- Pnk Rear fuse block (right rear of luggage compt) Rly ctrl Sens sig Spark plug Sply volt Tan Tp sens 1 sig Tp sens 2 sig Transmission fluid temperature sensor (right rear of transmission) X160 X161 X420
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for Cadillac CTS 2012 List of elements for Backup Lamps Wiring Diagram for Cadillac CTS 2012: 49 (top right of engine) g132 (wagon: center of liftgate) (coupe/sedan: center of rear fascia) (if equipped) rearview camera 6.2l Automatic transmission Automatic transmission internal mode switch (ims) B+ volt Backup lamp sply volt x6 Backup lamp sw sig Backup lamp switch (m/t) (right side of trans- mission) Backup lamp switch (m/t) (right side of transmission) Backup lamps sply volt Bcm 4 fuse 10a Body control module (bcm) (center of dash) Compt) (6.2l: right rear of engine compt) Computer data lines system Control solenoid valve assembly D red Engine control module (ecm) (except 6.2l: left front of engine Except 6.2l G132 (top right of engine) G401 (right rear shock tower) G402 (left rear shock tower) Gm lan ser data bus + Gm lan ser data bus - Hot at all times Inside rearview mirror (isrvm) J379 (body harness, near branch for g102) Left backup lamp Left tail lamp Logic Nca Right backup lamp Right tail lamp Serial data + Serial data - Serial data bus + Serial data bus - Sig a Sig b Sig c Sply volt Tan Trans- mission control module (tcm) Underhood fuse block (right front of engine compt) X109 X225 X408 X900 X903 Exterior Lamps Wiring Diagram (1 of 2) for Cadillac CTS 2012 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Cadillac CTS 2012: 70 (except 6.2l: left front of engine compt) (6.2l: right rear of engine compt) engine control module (ecm) (not used) 5 volt ref 1 6.2l A/t Auto Backup lamps circuit Bcm 4 fuse 10a Bcm 5 fuse 10a Bcm 6 fuse 10a Body control module (bcm) (center of dash) Brake pedal position sensor (top of brake pedal) Computer data lines system Data + Detection sig Display fuse 10a Except 6.2l G101 (left front strut tower) G102 (right front of engine compt) G104 (near right headlight) G200 (left kick panel) G401 (right rear shock tower) G402 (left rear shock tower) Gnd Hazard sw sig Hazard switch Head Hot at all times Instrument panel cluster (ipc) J180 J186 J201 J205 J240 Left Left backup lamp Left front turn signal lamp Left tail lamp assembly Left tail/stop & turn signal lamp Left turn ind Lf turn sw sig Logic Low ref Off Park Park lamp on sig Radio/hvac control Rf turn sw sig Right Right front turn signal lamp Right turn ind Sens rtn Sens sig x1 Sens sply Serial Serial data Serial data - x1 Sply volt Sply volt x1 Stop lamp sw sig Stp lp Stp lp sply volt Tan Turn signal/ multi-function switch Underhood fuse block (right front of engine compt) X114 X115 X200 X202 X235 Exterior Lamps Wiring Diagram (2 of 2) for Cadillac CTS 2012 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Cadillac CTS 2012: 48 (forward lamp harness, near horn connector) (forward lamp harness, near right cooling fan connector) (wagon: license lamp harness, 20 cm from right license light) (coupe/sedan: license lamp harness, near left license lamp) j420 Backup lamps circuit Center high mounted stop lamp (chmsl) Coupe/sedan G101 (left front strut tower) G104 (near right headlight) G401 (right rear shock tower) G408 (top of right "d" pillar) G408 (top of right 'd' pilar) G904 (top of liftgate) Hot at all times J116 J180 J186 J430 J903 J904 Left front marker lamp Left front park lamp Left license lamp Logic Lt/pos/ lp relay Lt/pos/lp fuse 10a Radio antenna inductor (wagon) (top of liftgate) Rear fuse block (right rear of luggage compt) Right backup lamp Right front marker lamp Right front park lamp Right license lamp Right tail lamp assembly Right tail/stop & turn signal lamp Rt/pos/lp fuse 10a Sedan/coupe W/ hid W/ variable real time damping W/o hid W/o variable real time damping Wagon X114 X115 X165 X205 X225 X260 X900 X903
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 5) for Cadillac CTS 2012 List of elements for Ground Distribution Wiring Diagram (1 of 5) for Cadillac CTS 2012: 93 (3.0l & 3.6l) auxiliary brake booster pump (3.0l & 3.6l) engine cooling fan resistor (3.0l & 3.6l) ignition coil 1 (3.0l & 3.6l) ignition coil 2 (3.0l & 3.6l) ignition coil 3 (3.0l & 3.6l) ignition coil 4 (3.0l & 3.6l) ignition coil 5 (3.0l & 3.6l) ignition coil 6 (3.0l & 3.6l) multi-function intake air sensor (6.2l) fan s/p relay (6.2l) left engine cooling fan (6.2l) mass air flow (maf)/ intake air temperature (iat) sensor (a/t) automatic transmission (except 6.2l) vehicle speed sensor (vss) (if equipped) headlamp module (if equipped) headlamp wash relay (if equipped) headlamp washer fluid pump (if equipped) left front fog lamp (if equipped) right front fog lamp (m/t) backup lamp switch (right front of engine compt) underhood fuse block (sedan) windshield washer fluid level switch (sedan) windshield washer fluid pump (sedan/ wagon) rear defog relay (w/ hid) (w/ hid) left daytime running lamp (drl) (w/ hid) left headlamp ballast (w/ hid) left high beam headlamp solenoid (w/ hid) right daytime running lamp (drl) (w/ hid) right headlamp ballast (w/ hid) right high beam headlamp solenoid (w/ remote engine start control) hood ajar switch (w/o hid) left high beam headlamp (w/o hid) left low beam headlamp (w/o hid) right high beam headlamp (w/o hid) right low beam headlamp 3.0l & 3.6l 6.2l 87a A/c compressor clutch B (w/o hid) Battery Battery current sensor Brake fluid level switch Charge air cooler (cac) coolant pump Control solenoid valve assembly Electronic brake control module (ebcm) Engine control module (ecm) Except 6.2l F x160 From splice j201 (diagram 2 of 5) G101 (left front strut tower) G102 (right front of engine compt) G104 (near right headlight) G110 (near abs module) G130 (rear of right cylinder head) G131 (left rear of engine) G132 (top right of engine) G135 (rear of right cylinder head) G136 (rear of left cylinder head) G405 (right side of luggage compt) Harness, near inline connector x114) Headlight harness, near headlight module) Horn assembly I/p apo relay Ign 1 relay Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Ignition coil 5 Ignition coil 6 Ignition coil 7 Ignition coil 8 J135 J136 Left front marker lamp Left front park lamp Left front turn signal lamp M x115 Nca R26 Right front marker lamp Right front park lamp Right front turn signal lamp Starter relay Transmission control module Windshield wiper motor Wpr relay X109 X114 m X130 b X161 g Ground Distribution Wiring Diagram (2 of 5) for Cadillac CTS 2012 List of elements for Ground Distribution Wiring Diagram (2 of 5) for Cadillac CTS 2012: 91 (awd) transfer case shift control module (coupe) driver exterior door handle switch (except coupe) driver door handle switch (if equipped) pedestrian impact detection module (w/ deluxe interior lamp package) (w/ deluxe interior lamp package) left rear door accent lamp (w/ deluxe interior lamp package) left rear door handle accent lamp (w/ infotainment system) radio/ hvac display 6.2l & 3.0l A/t shift lever A/t shift lever position indicator Automatic transmission shift lock control solenoid Body control module (bcm) Cooling Coupe Data link connector (dlc) Digital video disk (dvd) control module Dome lamp Driver door latch Driver door lock/ window switch Driver information center (dic) switch Driver outside rearview mirror Driver seat adjuster switch Driver seat back ventilation heating & Driver seat bolster adjuster valve Driver seat cushion ventilation heating & Driver seat lumbar adjuster valve assembly Driver seat lumbar/ bolster pump Driver window motor Except coupe From inflatable restraint steering wheel module coil (diagram 5 of 5) Front cigar lighter Front fog lamp G200 (left kick panel) High beam Horn switch Hvac control module I/p dimmer switch Ignition lock cylinder control actuator Ignition lock cylinder control switch Inflatable restraint steering wheel module coil Instrument panel cluster (ipc) J200 (i/p harness, near inline x202) J201 (i/p harness, near hazard switch connector) J205 (steering column harness, near inline connector x202) J289 J375 (driver's seat assembly harness, near inline connector x300) J376 J505 (w/ deluxe interior lamp package) (driver's door trim harness, near branch to accent lamp) J510 (driver's door harness, near branch to left front door speaker) J710 (left rear door harness, near branch to inline connector x701) J715 (left rear door trim harness, near inline connector x701) Left i/p accent lamp Left i/p courtesy lamp Left rear door accent lamp Left rear door courtesy lamp Left rear door handle accent lamp Left rear door handle switch (sedan or wagon) Left rear door latch Left rear window switch Left steering wheel control switch Memory seat module (msm) Module Nca Park lamp Right steering wheel control switch Steering wheel position sensor Theft deterrent module (tdm) To ground g102 (diagram 1 of 5) Turn signal Turn signal/multi-function switch W/ 6 speed a/t W/ climate control seats W/ fog lamp W/ front seat cooling heater & deluxe steering wheel W/ key less engine start switch W/ memory W/ recaro front bucket seat W/ recaro front bucket seats W/o memory W/o recaro front bucket seats X200 X201 X202 X301 X500 X505 X507 X700 X701 Yaw & lateral accelerometer sensor Ground Distribution Wiring Diagram (3 of 5) for Cadillac CTS 2012 List of elements for Ground Distribution Wiring Diagram (3 of 5) for Cadillac CTS 2012: 73 (coupe) passenger exterior door handle switch (i/p harness, near hazard switch connector) j202 (if equipped) air quality sensor (if equipped) park brake control switch (sedan or wagon) passenger door handle switch (w/ 8 way power adjuster passenger seat) passenger seat adjuster switch (w/ deluxe interior lamp package) right i/p accent lamp (w/ deluxe interior lamp package) right rear door accent lamp (w/ deluxe interior lamp package) right rear door handle accent lamp (w/ deluxe interior lamp) right i/p accent lamp (w/ power lumbar control seat) passenger seat lumbar adjust switch (w/ remote, passive entry & extended range lock control) right rear door handle switch (wagon) radio antenna inductor Blower motor control module Body control module (bcm) Center console accessory power outlet Cooling Courtesy lamp Defogger noise filter G106 (right rear of engine) G134 (right side of engine compt) G201 (right kick panel) G306 (under driver's seat) G408 (wagon) (top of right "d" pillar) G904 (top of liftgate) I/p compartment lamp switch Inflatable restraint front passenger presence system (pps) module Inflatable restraint sensing & diagnostic module (sdm) J308 (console harness, near inline connector x312) J374 (w/ 8 way power adjuster passenger seat, power lumber control seats & climate control seats) (front passenger's seat assembly harness, near inline connector x307) J610 (front passenger's door harness, near branch to right front door speaker) J805 (right rear door trim harness, near branch to inline connector x801) J810 (right rear door harness, near branch to inline connector x801) J904 Left license lamp Liftgate module (lgm) Module Nca Passenger door latch Passenger door latch (coupe) Passenger door lock/ window switch Passenger outside rearview mirror Passenger seat back ventilation heating & Passenger seat bolster adjuster valve Passenger seat cushion ventilation heating & Passenger seat lumbar adjuster valve assembly Passenger seat lumbar/ bolster pump Passenger window motor Radio antenna inductor Rear accessory power outlet Rear window wiper motor Right i/p Right license lamp Right rear door courtesy lamp Right rear door handle switch (sedan or wagon) Right rear door latch Right rear window Right rear window switch W/ climate control seats W/ recaro front bucket seat W/ recaro front bucket seats W/o recaro front bucket seats Wagon/ sedan X225 X260 X307 X312 X600 X605 X607 X800 X801 X903 Ground Distribution Wiring Diagram (4 of 5) for Cadillac CTS 2012 List of elements for Ground Distribution Wiring Diagram (4 of 5) for Cadillac CTS 2012: 72 (6.2l) (6.2l) fuel pump flow control module (coupe) (coupe) differential cooler pump (coupe) rear window defogger relay (coupe) trunk release relay (coupe/ sedan) rear view camera (except 6.2l) (if equipped) garage door opener (gdo) (if equipped) left side object sensor (if equipped) rain sensor (if equipped) rear object sensor control module (if equipped) right side object sensor (right rear of luggage compt) rear fuse block (sedan) trunk/ relse relay (w/ remote start) exterior rear compartment lid release switch (w/ remote start) remote control door lock receiver (rcdlr) (w/o remote start) remote control door lock receiver (wagon & coupe) sunroof control module (wagon & coupe) sunroof sunshade module (wagon) (wagon) 2nd row courtesy/ reading lamps (wagon) electronic compass module (wagon) rear window washer fluid pump relay (wagon) right cargo lamp (wagon) windshield washer pump relay 87a Auxiliary power relay Center high mounted stop lamp Center high mounted stop lamp (chmsl) Coupe Coupe/ sedan Diff- rential temp- erature switch Exterior rear compartment lid release latch From splice j371 (diagram 5 of 5) Fuel pump & sender assembly Fuel/ dr/ relse relay G401 (right rear shock tower) If equipped Inside rearview mirror (isrvm) J373 (sunroof assembly harness, near inline connector x401) J378 (headliner harness, near branch to right sunshade) J406 (rear fascia harness, near break out to right side object sensor) J421 (license lamp harness, near left license lamp) J430 (body harness, near branch to rear fuse block) Lck relay Left license lamp M x402 Nca P x402 Parking brake control module Radio antenna indicator Radio antenna inductor Rear compartment lid latch Rear window defogger Right license lamp Right rear window defogger noise filter Right tail lamp Right tail lamp assembly Sedan Sedan coupe Sedan/ wagon Stop lamp relay Unlck relay W/ transparent glass fixed Wagon X2 x2 X401 X408 X420 X425 X900 Ground Distribution Wiring Diagram (5 of 5) for Cadillac CTS 2012 List of elements for Ground Distribution Wiring Diagram (5 of 5) for Cadillac CTS 2012: 67 (3.0l & 3.6l) fuel pump flow control module (coupe) (coupe/ sedan) electronic compass module (if equipped) garage door opener (gdo) (if equipped) rear object sensor control module (if equipped) theft deterrent alarm siren (sedan) (sedan) sunroof control module (sedan) sunroof shade module (w/ communi- cations system) (w/ deluxe interior lamp package) overhead console accent lamp (w/ infotainment system) radio/ hvac display (w/ infotainment system) television tuner (w/ premium audio) rear subwoofer speaker (w/ transparent glass fixed) sunroof shade switch (w/ transparent glass fixed) sunroof switch (wagon) cargo accessory power outlet (wagon) left cargo lamp (wagon) rain sensor Audio amplifier Auxiliary body control module (xbcm) B x1 Coupe Coupe/ sedan Electronic suspension control (esc) module G402 (left rear shock tower) G406 (top of left "d" pillar) G901 (top left of liftgate) G902 (wagon) (top left of liftgate) G903 (wagon) (top right of liftgate) Heated steering wheel Heated steering wheel control module Inflatable restraint steering wheel module coil Inside rear view mirror (isrvm) J240 (i/p harness, near inline connector x200) J288 J371 (headliner harness, near branch to left sunshade) J372 (headliner harness, near branch to right sunshade) J378 (w/ garage door opener) (headliner harness, near branch to right sunshade) Left front courtesy/ reading lamps Left rear courtesy/ reading lamps Left sunshade Left tail lamp assembly Nca Radio Radio/ hvac control Rear view camera Rear window defogger Rear window defogger noise coil Right front courtesy/ reading lamps Right rear courtesy/ reading lamps Right sunshade Theft deterrent alarm To ground g200 (diagram 2 of 5) To ground g401 (diagram 4 of 5) Vehicle communication interface module (vcim) (if equipped) W/ continuously variable real time damping magneto rheologicoy W/ rear view camera W/o rear view camera Wagon X200 X206 X215 e X401 X406 X901 X903
HEADLIGHTS Adaptive Front Lighting Wiring Diagram for Cadillac CTS 2012 List of elements for Adaptive Front Lighting Wiring Diagram for Cadillac CTS 2012: 30 (forward lamp nca harness, near inline connector x115) j175 (near right headlight) g104 Afs fuse 15a Batt + volt Computer data lines system Data bus+ Data bus- Forward lighting system Gnd Headlamp control module (front of engine compt) Hot at all times J170 (forward lamp harness, near headlight module) J172 (forward lamp harness, near headlight module) J174 (forward lamp harness, near inline connector x114) Left adaptive forward lighting (afl) motor Left headlamp Mtr lo ref Mtr sig 1 Mtr sig 2 Mtr sig 3 Mtr sig 4 Nca Pnk Right adaptive forward lighting (afl) motor Right headlamp Serial data Tan Underhood fuse block (right front of engine compt) X114 X115 Headlamps Wiring Diagram, with High Intensity Discharge for Cadillac CTS 2012 List of elements for Headlamps Wiring Diagram, with High Intensity Discharge for Cadillac CTS 2012: 75 (drl) (forward lamp harness, near branch for rear headlight leveling sensor) (near right headlight) Ambient light/ sunload sensor (top center of dash) Auto Ballast Body control module (bcm) (center of dash) Computer data lines system Drl lo beam relay Drl rt fuse 7.5a Drl sply volt Drl/lt lo beam fuse 15a/7.5a Flash to pass sw Fog Fog lamp sw Fog lamps indicator Front fog lamp relay Frt fog fuse 15a G101 (left front strut tower) G104 G104 (near right headlight) G200 (left kick panel) Gmlan serial data Hdlmps off Hdlmps on Hdlp dimmer sw Hdlp rly ctrl Head Hi beam relay High beam indicator High beam solenoid Hot at all times Hvac control module (center of dash) Instrument panel cluster (ipc) J176 (forward lamp harness, near branch to right headlight motor) J178 J180 J186 J205 Left daytime running lamp Left front fog lamp Left headlamp assembly Light sensor sig Lines system computer data Lo ref Logic Low beam sply volt Lt drl relay Lt hi beam fuse 10a Lt lo beam fuse 10a/15a/ 20a Off Park Park brake sw sig Park brake switch (on park brake assembly) Pnk Right daytime running lamp Right front fog lamp Right headlamp assembly Rly & ind ctrl Rly ctrl Rt drl relay Rt hi beam fuse 10a Rt lo beam fuse 10a/20a Serial data Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Turn signal/ multi-function switch Underhood fuse block (right front of engine compt) Windshield sw sig Wiper/washer system Wsw/drl fuse 10a X114 X115 X115 f X202 X204 Headlamps Wiring Diagram, without High Intensity Discharge for Cadillac CTS 2012 List of elements for Headlamps Wiring Diagram, without High Intensity Discharge for Cadillac CTS 2012: 65 (near right headlight) Ambient light/ sunload sensor (top center of dash) Auto Body control module (bcm) (center of dash) Computer data lines system Drl relay Drl rt fuse 7.5a Flash to pass sw Fog Fog lamp indicator Fog lamp sw Front fog lamp relay Frt fog fuse 15a G101 (left front strut tower) G104 G104 (near right headlight) G200 (left kick panel) Gmlan serial data Hdlmps off Hdlmps on Hdlp dimmer sw Hdlp rly ctrl Head Hi beam relay High beam indicator Hot at all times Hvac control module (center of dash) Instrument panel cluster (ipc) J117 J180 J186 J205 Left front fog lamp Left high beam headlamp Left low beam headlamp Light sensor sig Lo beam drl fuse 15a/ 7.5a Lo beam relay Lo beam sply volt Lo ref Logic Lt hi beam fuse 10a Lt lo beam fuse 10a/15a/ 20a Off Park Park brake sw sig Park brake switch (on park brake assembly) Pnk Right front fog lamp Right high beam headlamp Right low beam headlamp Rly & ind ctrl Rly ctrl Rt hi beam fuse 10a Rt lo beam fuse 10a/20a Serial data Splice pack jx201 (body harness, near left front inflatable restraint side impact sensor) Turn signal/ multi-function switch Underhood fuse block (right front of engine compt) Windshield sw sig Wiper/washer system X114 X115 X202 X204 Headlamps Leveling Wiring Diagram for Cadillac CTS 2012 List of elements for Headlamps Leveling Wiring Diagram for Cadillac CTS 2012: 34 Afs fuse 15a Batt + volt Computer data lines system Data bus+ Data bus- Front headlamp leveling sensor (w/o variable real time damping) (in right front strut tower) G104 (near right headlight) Gnd Headlamp control module (front of engine compt) Hot at all times J170 (forward lamp harness, J171 (forward lamp harness, near headlight motor) J172 (forward lamp harness, near headlight module) J173 (forward lamp harness, near headlight motor) Left headlamp Left headlamp leveling actuator Lh hdlp levl mtr lo ref Lh headlamp levl mtr Nca Near headlight module) Rear headlamp leveling sensor (w/o variable real time damping) (in right rear strut tower) Rh frt susp pos sens volt ref Rh frt susp position sen sig Rh hdlp levl mtr lo ref Rh headlamp levl mtr Rh rr susp position sen sig Rht frt susp pos sens lo ref Right headlamp Right headlamp leveling actuator Rr susp position sens lo ref Serial data comm enable Tan Underhood fuse block (right front of engine compt) X165
HORN Horn Wiring Diagram for Cadillac CTS 2012 List of elements for Horn Wiring Diagram for Cadillac CTS 2012: 18 (left front strut tower) Body control module (bcm) (center of dash) G101 G102 (right front of engine compt) High note horn Horn assembly (left front of engine compt) Horn fuse 15a Horn relay Horn relay ctrl Horn switch Hot at all times Inflatable restraint steering wheel module coil (top of steering column) J235 (i/p harness, near branch for clutch pedal position sensor) J289 Low note horn Tan Underhood fuse block (right front of engine compt) X202
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram (1 of 2) for Cadillac CTS 2012 List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Cadillac CTS 2012: 76 (left kick panel) g200 (on brake fluid reservoir) brake fluid level switch Abs ind Air bag ign fuse 10a Air bag ind Batt pos volt Boost gauge (6.2l) Brake ind Charge ind Computer data lines system Computer data lines system transmissions system Coolant temperature gauge (except 6.2l) Cruise ind Disply fuse 10a Down Driver door latch assembly (driver's door) Driver door lock/ window switch Driver information center (dic) display Driver information center (dic) switch Ecm/tcm ign fuse 15a Engine coolant temperature ind Fasten safety belt ind Front fog lamp ind Fuel level gauge G102 (right front of engine compt) G200 (left kick panel) G651 Ground High beam ind Hot at all times Hot w/ ign1 relay energized Ign Ign 1 volt Illumination (4 bulbs) Ind ctrl Instrument panel cluster (ipc) Interior lights system J200 J201 J510 J710 Left rear door latch (left rear door) Left turn ind Lf door ajar Lo ref Lo spd gmlan oil temp sens sig Logic Low tire pressure ind Malfunction ind Menu sw sig oil temp sens 5-v ref lo spd gmlan Network 1 Oil level ind Park ind Persona- lization Pnk Power distribution system Right turn ind Security ind Serial data Set/ reset Speedometer Sw sig Tachometer Tan Tow/haul ind Traction control off ind Transmissions system Trip/ fuel Trip/ odometer Underhood fuse block (right front of engine compt) Vehicle information Vsc ind Wiper/washer system X200 X505 X700 b1 Instrument Cluster Wiring Diagram (2 of 2) for Cadillac CTS 2012 List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Cadillac CTS 2012: 85 (coupe/sedan) (fuel tank harness, near inline connector x420) j400 (not used) (or 1500) (or 2705) (or 2755) (or 2761) (or 851) (or tan) (wagon) 5-volt ref 1 6.2l 6.2l except 6.2l Batt pos volt Body control module (bcm) (center of dash) Clock Computer data lines system Display Ect sens sig Electronic compass module (coupe/sedan: left side of rear shelf) (wagon: center front of luggage compt) Eng oil level sw sig Engine control module (ecm) (except 6.2l: left front of engine compt) (6.2l: right rear of engine compt) Engine controls system Engine coolant temperature sensor (6.2l: left front of engine) (except 6.2l: side of left cylinder head) Engine oil level & temperature sensor (right side of oil pan) Engine oil pressure (eop) sensor (except 6.2l: in oil filter housing) (6.2l: top center rear of engine) Except 6.2l Fuel level sens sig Fuel level sensor assembly (in fuel tank) Fuel pump & sender assembly (in fuel tank) G132 (top right of engine) G201 (right kick panel) G401 (right rear shock tower) G402 (left rear shock tower) Gnd Ground Hi spd gmlan serial data bus+ Hi spd gmlan serial data bus- Hot at all times Ign 1 volt Ign 3 volt J240 J275 J430 J610 J810 Liftgate ajar sw Lights off Lights on Lo spd gmlan serial data Local interconnect network 3 Logic Low ref Lr door ajar sw Mil ctrl Network 2 Oil press sens sig Park brake sw sig Park brake switch (on park brake assembly) Passenger door latch assembly (passenger's door) Passenger door lock/ window switch Pnk Power distribution system Primary fuel level sensor Primary fuel level sensor (in fuel tank) Radio/hvac control Rdo fuse 15a Rear compartment lid latch Rear fuse block (right rear of luggage compt) Rf door ajar Right rear door latch (right rear door) Rr door ajar sw Rvc/snsr fuse 10a Secondary fuel level sens sig Secondary fuel level sensor Tan X101 X104 X225 X235 X260 X3 b X420 X605 X800
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram (1 of 2) for Cadillac CTS 2012 List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Cadillac CTS 2012: 74 (headliner harness, near branch for left rear courtesy/ reading lamp) j370 (left rear door) (sedan & wagon) left rear door latch (right rear door) (sedan & wagon) right rear door latch (right rear shock tower) g401 2nd row courtesy reading lamps (wagon) Bcm 2 fuse 15a Bcm 7 fuse 10a Body control module (bcm) (center of dash) Computer data lines system Driver door latch (driver's door) Driver door lock/window switch G200 (left kick panel) G201 (right kick panel) G401 (right rear shock tower) G401 (right rear shock tower) sedan & wagon G402 (left rear shock tower) Hot at all times I/p compartment lamp I/p compartment lamp switch Ic 2 ctrl J200 J202 J360 (headliner harness, near inline connector x308) J371 J372 J430 J510 J610 J710 J715 J810 Left cargo lamp (wagon) Left front courtesy/ reading lamps Left front door courtesy lamp Left i/p courtesy lamp Left rear courtesy/ reading lamps (coupe & sedan) Left rear door courtesy lamp (sedan & wagon) Left sunshade Lf door ajar Liftgate ajar sw sig x6 Lp ctrl hi Lp ctrl l0 Lp ctrl lo Lp rly ctrl Lp sply volt Lr door ajar sw Passenger door latch (passenger's door) Passenger door lock/window switch Rear compartment courtesy lamp (coupe & sedan) Rear compartment lid latch (coupe & sedan) Rear compartment lid latch (sedan) Rf door ajar Right cargo lamp (wagon) Right front courtesy/ reading lamps Right front door courtesy lamp Right i/p courtesy lamp Right rear courtesy/ reading lamps (coupe & sedan) Right rear door courtesy lamp (sedan & wagon) Right sunshade Rr door ajar sw Sedan & wagon Serial data Underhood fuse block (right front of engine compt) W/ deluxe interior lamp package X225 X235 X260 X408 X505 X605 X700 X701 X800 X801 Courtesy Lamps Wiring Diagram (2 of 2) for Cadillac CTS 2012 List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Cadillac CTS 2012: 41 Computer data lines system Coupe Driver door accent lamp Driver door handle accent lamp (sedan & wagon) Driver door lock/window switch G200 (left kick panel) G201 (right kick panel) G401 (right rear shock tower) Harness, near branch to accent lamp) Ic 2 ctrl J200 J202 J215 (i/p harness, near branch for blower motor control module) J367 (body harness, near branch to left front inflatable restraint side impact sensor) J371 J615 (sedan & wagon) (front passenger door trim harness, near branch to accent lamp) J705 (left rear door trim harness, near branch to left rear door handle accent lamp) J715 J800 (right rear door trim harness, near branch to right rear door accent lamp) b J805 Left i/p accent lamp Left rear door accent lamp Left rear door handle accent lamp Low ref Overhead console accent lamp Passenger door accent lamp Passenger door handle accent lamp (sedan & wagon) Passenger door/lock window switch Red Right i/p accent lamp Right rear door accent lamp Right rear door handle accent lamp Sedan & wagon Serial data W/ deluxe interior lamp package X207 X235 X700 X701 X800 X801 Instrument Illumination Wiring Diagram for Cadillac CTS 2012 List of elements for Instrument Illumination Wiring Diagram for Cadillac CTS 2012: 59 (right front of engine compt) 12v ref Auto Batt poss volt Bcm 2 fuse 15a Bcm 7 fuse 10a Body control module (bcm) (center of dash) Computer data lines system Courtesy lamp switch Dimming ctrl Driver information center (dic) switch G102 G102 (right front of engine compt) G200 (left kick panel) G201 (right kick panel) G401 (right rear shock tower) Head Hot at all times I/p dimmer sw sig I/p dimmer switch Inflatable restraint steering wheel module coil (top of steering column) J200 J201 J205 J220 (i/p harness, near branch for instrument panel cluster) J289 J308 J368 (body harness, near branch to inflatable restraint sensing & diagnostic module) J372 J715 J805 Left rear window Left steering wheel control switch Off Park Park brake switch (if equipped) (on park brake assembly) Park lp sw on sig Right rear window switch Right steering wheel control switch Sedan & wagon Serial data Str/ whl/ illum fuse 2a Sunroof shade switch (w/ transparent glass fixed) Sunroof switch (w/ transparent glass fixed) Sw on sig Sw sig Switch Turn signal/ multi-function switch Underhood fuse block (right front of engine compt) W/ electric glass tilting sunroof W/o electric glass tilting sunroof X202 X225 X315 X408 X700 X701 X800 X801
MEMORY SYSTEMS Memory Mirrors Wiring Diagram for Cadillac CTS 2012 List of elements for Memory Mirrors Wiring Diagram for Cadillac CTS 2012: 32 (left kick panel) g200 (right kick panel) g201 Computer data lines system Dr/lck fuse 15a Driver door lock/ window switch Driver memory seat adjuster switch Driver outside rearview mirror Exit switch Folding Hot at all times Hvac control module (center of dash) J510 J610 Left Logic Memory 1 switch Memory 2 switch Memory seat module (msm) (under driver's seat) Passenger door lock/ window switch Passenger outside rearview mirror Pdm fuse 15a Rear fuse block (right rear of luggage compt) Right Sel left Sel right Serial data W/ power folding mirror X500 X501 X505 X600 X605 Memory Seat Wiring Diagram (1 of 3) for Cadillac CTS 2012 List of elements for Memory Seat Wiring Diagram (1 of 3) for Cadillac CTS 2012: 60 (driver's seat assembly harness, near memory seat module) j382 (left kick panel) g200 Batt positive volt Coupe Down steering column tilt mtr ctrl Driver seat horizontal motor position sensor (under driver's seat) Driver seat lumbar horizontal motor (driver's front seat back) Driver seat recline motor (in driver's front seat back) Driver seat recline position sensor (under driver's front seat) Drv horiz seat mtr position sens sig Drv position sw high ref Drv pwr/seat circuit breaker 25a Drv seat cushion heated mod cool ctrl Drv seat cushion heated mod heat ctrl Drv seat cushion temp sens low ref Drv seat frt vert mtr down ctrl Drv seat frt vert mtr up ctrl Drv seat horiz mtr forward ctrl Drv seat horiz mtr rearward ctrl Drv seat lumbar horiz position sens sig Drv seat lumbar mtr forward ctrl Drv seat lumbar mtr rearward ctrl Drv seat recline mtr fwd ctrl Drv seat recline mtr position sens sig Drv seat recline mtr rwd ctrl Drv seat rr vert mtr down ctrl Drv seat rr vert mtr up ctrl Drv vert seat mtr position sens sig Gnd Hot at all times J362 (w/ recaro front bucket seat) J375 J383 (driver's seat assembly harness, near driver seat adjuster switch) Memory seat module (msm) (under driver's seat) Memory sens high ref Memory sens low ref Msm fuse 75a Pass horiz mtr pos sens sig Pass seat cushion heated mod cool ctrl Pass seat cushion heated mod heat ctrl Pass seat cushion temp sens sig Pass seat horiz mtr fwd ctrl Pass seat horiz mtr rwd ctrl Pnk Pwr/clmn circuit breaker 15a Rear fuse block (right rear of luggage compt) Rev steering column telescope mtr ctrl Seat cushion temp sens sig Seats system Sedan & wagon Steering column telescope mtr forward Steering column telescope sens sig Steering column tilt sens sig Tan Up steering column tilt mtr ctrl X1 a X300 X301 X305 X309 a Memory Seat Wiring Diagram (2 of 3) for Cadillac CTS 2012 List of elements for Memory Seat Wiring Diagram (2 of 3) for Cadillac CTS 2012: 25 (base of steering column) (if equipped) steering column tilt/telescope actuator (coupe) driver rear seat easy entry switch (coupe) passenger rear seat easy entry switch B x1 Coupe coupe Driver seat front vertical motor (under driver front seat) Driver seat front vertical motor position sensor (under driver's seat) Driver seat horizontal motor Driver seat rear vertical motor (under driver front seat) Driver seat rear vertical motor position sensor (under driver seat) Easy entry fuse (coupe) 2a Hot at all times Passenger seat horizontal motor (coupe) (passenger front seat back) Passenger seat horizontal motor position sensor (coupe) Pnk Rear fuse block (right rear of luggage compt) Sedan & wagon sedan & wagon Tan X201 X300 X301 X307 X308 X310 X311 Memory Seat Wiring Diagram (3 of 3) for Cadillac CTS 2012 List of elements for Memory Seat Wiring Diagram (3 of 3) for Cadillac CTS 2012: 55 (driver's seat assembly harness, near driver seat adjuster switch) (w/ power lumbar seat control) j384 (i/p harness, near branch for instrument panel cluster) j220 (if equipped) steering column tilt/telescope switch (right kick panel) g201 Computer data lines system Coupe Driver door lock/ window switch Driver memory seat adjuster switch Driver seat adjuster switch Driver seat lumbar adjuster switch (if equipped) Drv seat blower spd ctrl Drv seat lumbar fwd sw sig Drv seat lumbar rearward sw sig Exit switch Fwd rly ctrl Fwd sw sig Hot at all times J222 J224 J226 J374 J385 (w/ power lumbar control seat) Logic Low spd gmlan serial data Memory 1 switch Memory 2 switch Memory seat module (msm) (under driver's seat) Pass pwr seat circuit breaker 25a Pass seat blower spd ctrl Pass seat fwd fuse (coupe) Pass seat rwd fuse (coupe) Passenger seat adjuster switch (coupe) Pnk Pwr seat frt vert dn sw sig Pwr seat frt vert up sw sig Pwr seat horiz forward sw sig Pwr seat horiz rearward sw sig Pwr seat horiz rwd sw sig Pwr seat recline forward sw sig Pwr seat recline rearward sw sig Pwr seat rr vert dn sw sig Pwr seat rr vert up sw sig Rear fuse block (right rear of luggage compt) Rwd rly ctrl Rwd sw sig Seats system Sedan & wagon Tan Tilt & telescope forward sw sig Tilt & telescope up sw sig Tilt and telescope dn sw sig Tilt and telescope reverse sw sig X201 X300 X308
NAVIGATION Blind Spot Monitoring Wiring Diagram for Cadillac CTS 2012 List of elements for Blind Spot Monitoring Wiring Diagram for Cadillac CTS 2012: 33 Blind spot ind Computer data lines system Driver door lock/window switch Driver information center (dic) display Driver outside rearview mirror (at mirror) Driver outside rearview mirror glass G200 (left kick panel) G201 (right kick panel) G401 (right rear shock tower) Ground Hot at all times Instrument panel cluster (ipc) J405 J406 J510 J610 Led sig Left side object sensor Lo spd gmlan serial data Logic Low spd gmlan data Nca Passenger door lock/window switch Passenger outside rearview mirror (at mirror) Passenger outside rearview mirror glass Pnk Rear fuse block (right rear of luggage compt) Right side object sensor Sbza fuse 10a Serial data X425 X501 X601 Navigation Wiring Diagram, with Surround Amplifier (1 of 4) for Cadillac CTS 2012 List of elements for Navigation Wiring Diagram, with Surround Amplifier (1 of 4) for Cadillac CTS 2012: 70 (i/p harness, near inline connector x200) (left rear shock tower) g402 (shield (w/ communication system wiring provision) hands free phone accommodation connector Audio common sig Audio drain wire Audio mute sig Audio out Auxiliary audio sig Batt+ volt Coax Computer data lines system Detection sig Drain wire Dsply ctrl Enable sig G402 (left rear shock tower) Gmlan serial data Gnd Ground Hot at all times Hot w/ ign 1 relay energized J200 J240 J250 J275 Left audio sig Lo level audio - Lo level audio sig Lo level audio sig+ Lo level audio sig- Lo ref/ground Logic Microphone sig or audio sig Misc ign fuse 10a Nav dsply sig Navi audio sig - Navigation antenna (infotainment system 4, 5, 7 & 5.1) (center of dash) Navigation antenna (w/ digital audio system s-band) (center rear of roof) Nca Pnk Radio Radio/hvac display w/ infotainment system 7, 8 & 5.1) Rdo fuse 15a Rear fuse block (right rear of luggage compt) Red/ Remote enable sig Remote radio ctrl Right audio sig Serial data hi Serial data lo Sig dsply nav Sig enable Tan Underhood fuse block (right front of engine compt) Usb Vics1 Vics2 Vics4 Vics6 Video display ctrl W/ infotainment system 7 & 8 W/ infotainment system 7, 8 & 5.1 W/ infotainment system 8 & 5.1 W/o hands free W/o infotainment system 7, 8 & 5.1 Wake-up sig X200 X205 X250 Navigation Wiring Diagram, with Surround Amplifier (2 of 4) for Cadillac CTS 2012 List of elements for Navigation Wiring Diagram, with Surround Amplifier (2 of 4) for Cadillac CTS 2012: 68 (left rear shock tower) g402 (sedan: center rear of headliner) (wagon: top of liftgate) radio antenna module (shield Ante- nna Anti-lock brakes system Audio screen Audio sig Auxiliary audio jack Batt+ volt Cellular telephone microphone (w/ communication & infotainment) Cellular, navigation & digital radio antenna Center high mounted stop lamp (chmsl) Coax Common sig Computer data lines system Ctrl sig Data bus+ Detection sig Drain Drain wire Exterior lights system Fm1 Fm2 G902 (top left of liftgate) G903 (top right of liftgate) Gm lan Ground Haz sw sig Hot at all times Infotainment J240 Lo ref Logic Nav mtr fuse 10a Navigation & traffic data antenna (w/ infotainment system 7) (top center of windshield) Nca Nca s Pnk Radio rear window antenna Radio/hvac control (w/ infotainment system 1, 2 & 3 Red Remote enable sig x2 Sedan Serial data Serial data hi Serial data lo Sig System 1, 2, 3 & 5.1 System 7 & 8 Tan Trac sw sig Under- hood fuse block (right front of engine compt) Usb Vehicle communication interface module (vcim) (w/ onstar) (behind right rear strut tower) W/ infotainment system 8 & 5.1 Wagon Wake-up sig X1 data bus- gm lan X207 X215 X222 X235 X238 X239 X245 X250 X303 X906 Navigation Wiring Diagram, with Surround Amplifier (3 of 4) for Cadillac CTS 2012 List of elements for Navigation Wiring Diagram, with Surround Amplifier (3 of 4) for Cadillac CTS 2012: 60 (center of dash) body control module (bcm) (left rear shock tower) g402 (overhead console) (steering wheel harness) Audio amplifier (sedan: rear of left rear strut tower) (wagon: left front of luggage compt) Audio mute sig Batt+ volt Computer data lines system Cruise control & transmission system Drain wire G402 (left rear shock tower) Gmlan serial data Ground Inflatable restraint steering wheel module coil (top of steering column) J288 J290 L audio sig (+) Left front speaker Left steering wheel control switch Lf speaker out + Lf speaker out - Lo level audio sig Lo spd gmlan serial data Lr speaker out + Lr speaker out - Mute sig Navi audio sig Nca Noise compensation microphone Phone sply volt Pnk R audio sig (+) Rear sub- woofer speaker Red Rf speaker out + Rf speaker out - Right front speaker Right steering wheel control switch Rr speaker out + Rr speaker out - Sedan & coupe Seek down Seek up Speaker out + Speaker out - Spkr out+ Spkr out- Sply volt Srce Tan Transmission system Voice Vol + Vol - W/ deluxe steering wheel Wagon X405 X406 X500 X600 Navigation Wiring Diagram, with Surround Amplifier (4 of 4) for Cadillac CTS 2012 List of elements for Navigation Wiring Diagram, with Surround Amplifier (4 of 4) for Cadillac CTS 2012: 42 (left rear shock tower) g402 (wagon) Amp fuse 30a Batt+ volt Center i/p speaker Coax Computer data lines system Coupe Coupe & sedan Drain wire Exterior lights system G401 (right rear shock tower) G408 (top of right "d" pillar) G904 (top of liftgate) Ground Hot at all times J430 J903 Left audio sig Left front tweeter speaker Left rear compartment speaker Left rear speaker Lo spd gmlan Nca Onstar fuse 10a Radio antenna inductor (wagon) (top of liftgate) Radio audio out Rdo/ spkr fuse 15a Rear fuse block (right rear of luggage compt) Right audio sig Right front tweeter speaker Right rear compartment speaker Right rear speaker Tan Television antenna amplifier Television rear glass antenna Television tuner (w/ infotainment system 7 & 8) Wagon & sedan X200 X220 X225 X900 Navigation Wiring Diagram, without Surround Amplifier (1 of 4) for Cadillac CTS 2012 List of elements for Navigation Wiring Diagram, without Surround Amplifier (1 of 4) for Cadillac CTS 2012: 75 (i/p harness, near inline connector x200) (w/ communication system wiring provision) hands free phone accommodation connector j Amp fuse 30a Antenna Audio common sig Audio mute sig Audio out Audio sig Auxiliary audio sig Batt+ volt Coax Coax antenna Computer data lines system Detection sig Digital radio antenna (w/ digital audio system s-band) (center rear of roof) Drain wire Dsply ctrl Enable sig G200 (left kick panel) G402 (left rear shock tower) Gmlan serial data Gnd Ground Hot at all times Hot w/ ign 1 relay energized J200 J240 J250 Left audio sig Lf lo lvl aud sig+ Lf lo lvl aud sig- Logic Lr lo lvl aud sig+ Lr lo lvl aud sig- Misc ign fuse 10a Nav audi sig- Nav mtr fuse 10a Navi dsply sig Navigation antenna (w/ infotainment system 4,5,7 & 5.1) (center of dash) Nca Pnk Radio Radio audio mute sig Radio/ hvac display (w/ infotainment system 7, 8 & 5.1) Rdo fuse 15a Rear fuse block (right rear of luggage compt) Rearview camera circuit Remote enable sig Remote radio ctrl Rf lo lvl aud sig+ Rf lo lvl aud sig- Right audio sig Rr lo lvl aud sig+ Rr lo lvl aud sig- Serial data hi Serial data lo Sig navi dsply Tan Underhood fuse block (right front of engine compt) Vics1 Vics2 Vics4 Vics6 Video display ctrl Voice recg low ref W/ infotainment system 7 & 8 W/ infotainment system 7, 8 & 5.1 W/ infotainment system 8 & 5.1 W/o hands free W/o infotainment system 7, 8 & 5.1 Wake-up sig X200 X205 X235 X250 Navigation Wiring Diagram, without Surround Amplifier (2 of 4) for Cadillac CTS 2012 List of elements for Navigation Wiring Diagram, without Surround Amplifier (2 of 4) for Cadillac CTS 2012: 62 (coupe: under rug in left rear footwell) (sedan: near base of left "c" pillar) (wagon: 17 cm from breakout to g200) j350 (left rear shock tower) g402 Ante- nna Anti-lock brakes system Audio screen Audio sig Auxiliary audio jack Batt+ volt Cellular telephone microphone (w/ communication & infotainment) Cellular, navigation & digital radio antenna Center high mounted stop lamp (chmsl) Coax Common sig Computer data lines system Ctrl sig Data bus+ Detection sig Drain Drain wire Exterior lights system Fm1 Fm2 G902 (top left of liftgate) G903 (top right of liftgate) Gm lan Ground Haz sw sig Infotainment J240 Lo ref Logic Microphine Navigation & traffic data antenna (w/ infotainment system 7) (top center of windshield) Nca Pnk Radio antenna module (sedan: center rear of headliner) (wagon: top of liftgate) Radio rear window antenna Radio/hvac control (w/ infotainment system 1, 2 & 3 Red Sedan Serial data Serial data hi Serial data lo Sig enable remote System 1, 2, 3 & 5.1 System 7 & 8 Tan Trac sw sig Vehicle communication interface module (vcim) (w/ onstar) (behind right rear strut tower) W/ infotainment system 8 & 5.1 Wagon Wake-up sig X1 data bus- gm lan X2 sig X207 X215 X222 X238 X245 X250 X303 X906 Navigation Wiring Diagram, without Surround Amplifier (3 of 4) for Cadillac CTS 2012 List of elements for Navigation Wiring Diagram, without Surround Amplifier (3 of 4) for Cadillac CTS 2012: 55 (or 1704) (or 1794) (or 340) (or 346) (or tan) A tan Audio amplifier (sedan: rear of left rear strut tower) (wagon: left front of luggage compt) Audio mute sig B tan Center i/p speaker Coupe G402 (left rear shock tower) Ground Left front door speaker Left front tweeter speaker Left rear speaker Lf lo level audio sig+ Lf lo level audio sig- Lf speaker out + Lf speaker out - Lr lo level audio sig+ Lr lo level audio sig- Lr speaker out + Lr speaker out - Nca Rear subwoofer speaker Red Remote enable sig Rf lo level audio sig+ Rf lo level audio sig- Rf speaker out + Rf speaker out - Right front door speaker Right front tweeter speaker Right front tweeter speaker (wagon) Right rear speaker Rr lo level audio sig+ Rr lo level audio sig- Rr speaker out + Rr speaker out - Sedan Sedan & coupe Sedan & wagon Speaker out + Speaker out - Tan Wagon X200 X225 X500 X600 X700 X701 X800 X801 Navigation Wiring Diagram, without Surround Amplifier (4 of 4) for Cadillac CTS 2012 List of elements for Navigation Wiring Diagram, without Surround Amplifier (4 of 4) for Cadillac CTS 2012: 48 (left rear shock tower) g402 Batt+ volt Body control module (bcm) (center of dash) Coax Computer data lines system Cruise control & transmissions system Drain wire Exterior lights system G401 (right rear shock tower) G408 (top of right "d" pillar) G904 (top of liftgate) Ground Hot at all times Inflatable restraint steering wheel module coil (top of steering column) J288 J290 (steering wheel harness) J430 J903 Left audio sig Left steering wheel control switch Lo spd gmlan Lo spd gmlan serial data Nca Onstar fuse 10a Radio antenna inductor (wagon) (top of liftgate) Radio audio out Radio ctrl sply vol Rear fuse block (right rear of luggage compt) Right audio sig Right steering wheel control switch Sedan & coupe Seek down Seek up Source Sply volt Steering whl ctrl sig Television antenna amplifier Television rear glass antenna Television tuner (w/ infotainment system 7 & 8) Transmissions system Voice Vol + Vol - W/ deluxe steering wheel Wagaon X220 X225 X900 Parking Assistant Wiring Diagram for Cadillac CTS 2012 List of elements for Parking Assistant Wiring Diagram for Cadillac CTS 2012: 30 (or 1051) (right rear shock tower) (sedan & wagon) g401 g402 (coupe) (left rear shock tower) Batt positive volt Computer data lines system Coupe Driver information center (dic) display Gmlan serial data Ground Hot at all times Instrument panel cluster (ipc) J440 (rear bumper fascia harness, near branch to left rear corner object sensor) J445 (rear bumper fascia harness, near branch to left rear middle object sensor) Left rear corner object alarm sensor (left side of rear fascia) Left rear middle object alarm sensor (left side of rear fascia) Lo spd gmlan serial data Logic Low ref Lr corner obj sens sig Lr middle obj sens sig Msm fuse 7.5a Obj sens sply volt Power distribution system Rear fuse block (right rear of luggage compt) Rear object sensor control module (coupe & sedan: right side of rear shelf) (wagon: center front of luggage compt) Right rear corner object alarm sensor (right side of rear fascia) Right rear middle object alarm sensor (right side of rear fascia) Rr corner obj sens sig Rr middle obj sens sig Sedan/wagon X425 Rear View Camera Wiring Diagram for Cadillac CTS 2012 List of elements for Rear View Camera Wiring Diagram for Cadillac CTS 2012: 43 (body harness, near branch for g102) j379 (or 1051) (or 639) Acc volt Bcm 5 fuse 10a Body control module (center of dash) Camera sig Camera sig + Camera sig - Computer data lines system Coupe & sedan Coupe/sedan Drain wire Exterior lights system G401 (right rear shock tower) G402 (left rear shock tower) Ground distribution system Hot at all times Hot w/ ign 1 relay energized Ign volt Inside rearview mirror (isrvm) Isrvm fuse 7.5a J901 Lo spd gmlan serial data Nca Pnk Power distribution system Radio Rearview camera (center of liftgate) Sig ground Supp volt Underhood fuse block (right front of engine compt) W/ infotainment system 1/2/3 W/ infotainment system 5.1/7/8 Wagon X220 X225 X235 X406 X408 X900 X901 X903
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 8) for Cadillac CTS 2012 List of elements for Power Distribution Wiring Diagram (1 of 8) for Cadillac CTS 2012: 78 (6.2l) (i/p harness, near branch for radio/hvac control) j275 (right front of engine compt) underhood fuse block (right rear of luggage compt) rear fuse block 200a 6.2l A (except 6.2l) Air bag fuse 10a Amp fuse 30a Audio amplifier Aux/ outlet fuse 20a (wagon) sbza fuse 10a (coupe) Battery Bcm 1 fuse 10a Bcm 2 fuse 15a Bcm 3 fuse 10a Bcm 4 fuse 10a Bcm 5 fuse 10a Bcm 6 & 7 fuse 10a Body control module (bcm) Cargo accessory power outlet Cnstr/ vent fuse 10a Coupe Ecm fuse 15a Engine control module (ecm) Evaporative emission (evap) canister vent solenoid valve Except 6.2l From d ecm fuse (diagram 1 of 8) G402 (left rear shock tower) Generator Generator inline fuse Hands free phone accommodation connector Inflatable restraint front passenger presence system (pps) sensor Inflatable restraint sensing & diagnostic module (sdm) Left side object sensor Nca Onstar fuse 10a Premium audio branded w/ surround amplifier speaker system Radio Radio/ hvac control Radio/ hvac display (infotainment system 5.1/007/008) Rdo fuse 15a Rdo/ spkr fuse 15a Rear fuse block (right rear of luggage compt) Rear subwoofer speaker Rear/wndw circuit breaker (sedan/wagon) 15a Red Red/ (rear fascia harness, near breakout to x425) j405 Remote control door lock receiver (rcdlr) Right rear window switch Right side object sensor Rke/ pass key/ mdl fuse 10a Rvc fuse 2a Starter motor Television tuner (w/ infotainment system 007/008) To aux/ outlet fuse (diagram 1 of 8) To blwr fuse (diagram 3 of 8) To liftgate module (lgm) inline fuse (diagram 8 of 8) To rear defogger grid inline fuse (diagram 8 of 8) To rear fuse block dr/lck fuse (diagram 3 of 8) To rear fuse block pwr/clmn circuit breaker (diagram 2 of 8) Vehicle communication interface module (vcim) (w/ onstar) W/ communication system wiring provisions W/ infotainment system 7,8 & 5.1 W/ passive entry W/o infotainment system 7,8 & 5.1 W/o passive entry Wagon X104 X104 a X200 X215 X225 X260 X307 X420 f X425 X800 X801 Power Distribution Wiring Diagram (2 of 8) for Cadillac CTS 2012 List of elements for Power Distribution Wiring Diagram (2 of 8) for Cadillac CTS 2012: 62 (front passenger's seat assembly harness, near passenger's seat adjuster switch) j385 (right rear of luggage compt) rear fuse block 10a Coupe Coupe/wagon Diff pump fuse (6.2l) 20a Differential cooler pump relay (w/ cooling system axle) Driver lumbar/ bolster fuse holder Driver seat adjuster switch Driver seat back bolster adjuster switch Driver seat cushion bolster adjuster switch Driver seat lumbar adjuster switch Drv pwr seat circuit breaker 25a From battery (diagram 1 of 8) From pass e pwr seat circuit breaker (diagram 2 of 8) Garage door opener (gdo) (if equipped) Inside rearview mirror (isrvm) (if equipped) J362 J392 Left rear window switch Liftgate module (lgm) (wagon) Lt/rear/ wndw circuit breaker (sedan/wagon) 15a Memory seat module (msm) Memory seat module (msm) (w/ memory) Msm fuse 7.5a Nca Pass pwr seat circuit breaker 25a Passenger door lock/ window switch Passenger lumbar adjuster switch Passenger lumbar/ bolster fuse holder Passenger seat adjuster switch Passenger seat back bolster adjuster switch Passenger seat cushion bolster adjuster switch Pdm fuse 15a Pwr/clmn circuit breaker 15a Rear fuse block (right rear of luggage compt) Rear object sensor control module (w/ rear parking assist) Red Sedan Sedan/wagon Steering wheel/column tilt/ telescope switch Stop/ lp relay Stop/lp fuse 10a Theft/ugdo fuse 10a To msm fuse (diagram 2 of 8) W/ memory W/ power lumbar control seat W/ rear view camera W/ recaro front bucket seat W/ tilt telescoping power steering column W/o memory W/o power lumbar control seat W/o recaro front bucket seat X201 X301 X307 X408 X600 X605 X700 X701 X900 a Power Distribution Wiring Diagram (3 of 8) for Cadillac CTS 2012 List of elements for Power Distribution Wiring Diagram (3 of 8) for Cadillac CTS 2012: 76 (coupe) (right front of engine compt) underhood fuse block (right rear of luggage compt) rear fuse block (sedan/wagon) 6.2l Abs fuse 30a Abs mtr fuse 50a Afs fuse 15a Blower motor control module Blwr fuse 40a Brake booster pump relay Brk vac pump fuse (except 6.2l) 20a Charge air cooler (cac) coolant pump relay (6.2l) Coupe Coupe/sedan Dr/lck fuse 15a Driver door lock/ window switch Driver rear seat easy entry switch Driver window motor Easy entry fuse (coupe) 2a washer pump fuse (wagon) 10a Electronic brake control module (ebcm) Electronic suspension control (esc) module Except 6.2l From battery (diagram 1 of 8) From bcm 6 & 7 fuse (diagram 1 of 8) Fuel pump flow control module Fuel pump fuse (except 6.2l) 20a Fuel/dr/ relse relay Headlamp module (w/ hid) Inclr fuse 10a Lck relay Lt/pos/ lp relay Mrrtd fuse 30a Passenger rear seat easy entry switch Passenger window motor Ped pro fuse 10a Pedestrian impact detection module (if equipped) Pwr moding fuse 2a Pwr/wndw circuit breaker 25a Rear fog lamp relay (if equipped) Rear fog xbcm fuse 15a Rear window washer fluid pump relay Rear window wiper motor Red S/roof fuse 30a (except 6.2l) fscm fuse 30a (6.2l) Sedan Sedan/wagon Sunroof control module Sunroof fuse (6.2l) 30a Sunroof shade module Theft deterrent module (tdm) To console apo fuse (diagram 8 of 8) To ignition switch (diagram 5 of 8) To nav mtr fuse (diagram 4 of 8) Trunk release relay Trunk/ relse relay Trunk/relse fuse (sedan & coupe) rear wiper fuse (wagon) 15a Unlck relay W/ keyless engine start switch W/o keyless engine start switch Wagon Wagon & coupe Windshield washer pump relay X163 X202 X300 X308 X310 X311 X401 X402 X440 X500 X505 X600 X900 h Power Distribution Wiring Diagram (4 of 8) for Cadillac CTS 2012 List of elements for Power Distribution Wiring Diagram (4 of 8) for Cadillac CTS 2012: 68 (6.2l) (6.2l) (except 6.2l) (except 6.2l) (not used) (right front of engine compt) underhood fuse block A/c cltch fuse 10a A/c compressor cltch relay Air bag ign fuse 10a Automatic transmission Awd fuse 15a Control solenoid valve assembly Data link connector (dlc) Differential cooler pump relay (w/ cooling system axle) Disply fuse 10a Drl relay (w/o hid) Ecm/ tcm ign fuse 15a Engine control module (ecm) Epb module fuse 30a Fan 1 fuse 40a 30a Fan 1 relay Fan 2 fuse 40a 30a Fan 2 relay From a/c j cltch fuse (diagram 4 of 8) From f pwr moding fuse (diagram 3 of 8) From h wpr fuse (diagram 4 of 8) Front fog lamp relay Fuel pump flow control module G104 (near right headlight) Hdm wash fuse 20a Headlamp wash relay Hi beam relay Horn fuse 15a Horn relay Hvac control module Ign 1 relay Inflatable restraint sensing & diagnostic module (sdm) Infotainment system 5.1/007/008 Instrument panel cluster (ipc) Lo beam relay (w/o hid) drl lo beam relay (w/ hid) Lt drl relay (w/ hid) Nav mtr fuse 10a Parking brake control module Pnk Radio/ hvac display Rear defog fuse (sedan & wagon) 40a Rear defog relay Rt drl relay (w/ hid) Starter relay Strtr fuse 40a Tcm batt fuse 15a To bcm pin 11 (diagram 5 of 8) To bcm pin 21 (diagram 5 of 8) To horn fuse (diagram 4 of 8) To ign 1 relay (diagram 4 of 8) To isrvm fuse (diagram 7 of 8) To pwr/trn relay (diagram 6 of 8) Transfer case shift control module Transfer case shift control module (if equipped) W/ awd auto provisions Wpr fuse 30a Wpr hi relay Wpr relay Wsw drl fuse 10a Wsw pump relay Wsw/drl fuse 10a X163 X200 X402 Power Distribution Wiring Diagram (5 of 8) for Cadillac CTS 2012 List of elements for Power Distribution Wiring Diagram (5 of 8) for Cadillac CTS 2012: 44 (coupe) (wagon/ sedan) 5v ref Acc Acc volt Batt pos vol Body control module (bcm) (center of dash) Coupe Crank volt Electronic compass module From pwr moding fuse (diagram 3 of 8) From underhood fuse block (diagram 4 of 8) Hvac control module Ign 1 volt Ign 3 volt Ignition switch J901 (w/ rear view camera) (liftgate harness, 5 cm from g406) Nca Off Off acc Pnk Rap fuse volt Rear window wiper motor Rearview camera Remote control door lock receiver (rcdlr) Run Sedan/ wagon Serial data Start Sunroof control module (if equipped) Sunroof shade module (if equipped) Theft deterrent module (tdm) To rear fuse block (diagram 8 of 8) To underhood fuse block (diagram 8 of 8) W/ keyless engine start switch W/o keyless engine start switch Wagon X200 X201 X225 X235 X401 X901 X903 Power Distribution Wiring Diagram (6 of 8) for Cadillac CTS 2012 List of elements for Power Distribution Wiring Diagram (6 of 8) for Cadillac CTS 2012: 33 (engine harness, near branch for underhood fuse block) j185 20a 6.2l Brake booster pump relay (except 6.2l) Ecm fuse 20a (except 6.2l) ecm pwr fuse 15a (6.2l) Engine control module (ecm) Even coils fuse 15a Except 6.2l From hdm k wash fuse (diagram 4 of 8) From odd p coils fuse (diagram 6 of 8) Fuel injector Fuel injector 1 Fuel injector 3 Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Ignition coil 5 Ignition coil 6 Ignition coil 7 Ignition coil 8 J161 Near connector x5 of underhood fuse block) j162 Odd coils fuse 15a Pwr/trn relay To cigar apo fuse (diagram 8 of 8) To emis 2 fuse (diagram 7 of 8) To even coils fuse (diagram 6 of 8) Toss/brk vac rly fuse 10a Underhood fuse block (right front of engine compt) Vehicle speed sensor (vsss) (m/t) X160 X161 Power Distribution Wiring Diagram (7 of 8) for Cadillac CTS 2012 List of elements for Power Distribution Wiring Diagram (7 of 8) for Cadillac CTS 2012: 44 (engine harness, 23 cm from breakout to supercharger bypass valve) j155 (right front of engine compt) underhood fuse block 6.2l A/c cmprsr cltch relay Air quality sensor Charge air cooler (cac) coolant pump relay Coupe/ sedan Digital video disc (dvd) control module Digital video disc (dvd) control module inline fuse Emis 1 fuse 15a Emis 2 fuse 15a Evaporative emission (evap) canister purge solenoid valve Except 6.2l Fan 1 relay Fan 2 relay Fan s/p relay From air bag l ign fuse (diagram 4 of 8) From toss/ o brk vac rly fuse (diagram 6 of 8) Heated oxygen sensor (ho2s) bank 1 sensor 1 Heated oxygen sensor (ho2s) bank 1 sensor 2 Heated oxygen sensor (ho2s) bank 2 sensor Heated oxygen sensor (ho2s) bank 2 sensor 1 Heated oxygen sensor (ho2s) bank 2 sensor 2 Inside rearview mirror (isrvm) (if equipped) Isrvm fuse 7.5a J142 J211 Mass air flow (maf)/ intake air temperature (iat) sensor Multi- function intake air sensor Nca Pnk Rearview camera (if equipped) Red Reverse lockout solenoid Skip shift solenoid Super charger bypass valve solenoid To misc ign fuse (diagram 8 of 8) Underhood fuse block (right front of engine compt) W/ spo dvd W/o spo dvd X207 X225 X270 X900 Power Distribution Wiring Diagram (8 of 8) for Cadillac CTS 2012 List of elements for Power Distribution Wiring Diagram (8 of 8) for Cadillac CTS 2012: 63 (body harness, near branch to inflatable restraint sensing & diagnostic module) 30a 60a 7.5a Auxiliary power relay Center console compartment accessory power outlet Cigar apo fuse 20a Console apo fuse 20a Coupe Driver seat back ventilation heating & cooling module Driver seat cushion ventilation heating & cooling module From battery (diagram 1 of 8) From body control module pin 19 (diagram 5 of 8) From fuel pump fuse (diagram 3 of 8) From isrvm fuse (diagram 7 of 8) From pwr/ trn relay (diagram 6 of 8) Front cigar lighter G104 (near right headlight) G200 (left kick panel) G201 (right kick panel) G401 (right rear shock tower) Hands free phone accommodation connector Heated steering wheel control module Heated steering wheel control module inline fuse I/p apo relay Inflatable restraint steering wheel control module coil J200 J308 J381 Liftgate module (lgm) Liftgate module (lgm) inline fuse (wagon) Misc ign fuse 10a Nca Passenger seat back ventilation heating & cooling module Passenger seat cushion ventilation heating & cooling module Passenger seat cushion ventilation heating & module Pnk R25 R26 R27 R28 Rear accessory power outlet Rear defogger grid inline fuse (coupe) Rear fuse block (right rear of luggage compt) Rear window defogger relay Red Sedan/wagon Underhood fuse block (right front of engine compt) W/ communication system W/ deluxe steering wheel & theft deterent W/ recaro front bucket seat W/o deluxe steering wheel & theft deterent W/o recaro front bucket seat Wiring provisions X200 X201 X206 X215 X301 X307 X308 X312 X902
POWER DOOR LOCKS Power Door Locks Wiring Diagram (1 of 3) for Cadillac CTS 2012 List of elements for Power Door Locks Wiring Diagram (1 of 3) for Cadillac CTS 2012: 78 (body harness, near inline connector x700) j390 (center of dash) body control module (bcm) (or 5797) Antenna clock Antenna data Antenna low Antenna sig Antenna sply Computer data lines system Coupe Data bus+ Data bus- Disply fuse 10a Door handle keyless entry antenna Driver door handle switch (sedan/wagon) Drv door unlck Drv sw sig Exterior lights system Fuel door release actuator (w/ remote control) (right rear of luggage compt) G102 (right front of engine compt) G200 (left kick panel) G201 (right kick panel) G401 (right rear shock tower) Gnd Headliner keyless entry antenna (wagon) (center rear of roof) Hood ajar sw Hood ajar switch (w/ remote start) Hood sw sig Horn rly ctrl Horns system Hot at all times Ignition sw sig J394 J396 (body harness, near branch to inflatable restraint sensing & diagnostic module) J430 J510 J710 J810 Left keyless entry antenna Left rear door handle switch (sedan/wagon) Left rear door latch (sedan/wagon) (left rear door) Liftgate ajar sw Low ref Lr door ajar sw Lr door open sw Lr dr handle sw Nca Park lp sply Pass sw sig Pnk Power distribution system Rear compartment keyless entry antenna Rear compartment lid latch Rear fuse block (right rear of luggage compt) Release ctrl Remote control door lock receiver (rcdlr) (w/ passive entry) (sedan/coupe: right side of rear shelf) (wagon: left rear of roof) Right rear door handle switch (sedan/wagon) Right rear door latch (sedan/wagon) (right rear door) Rke/pass key/mdl fuse 10a Rr door ajar sw Rr dr handle sw Sedan Sedan & wagon Sedan/wagon Serial data Shift interlock system Shift pos sig Tan Trunk, tailgate, fuel doors system Underhood fuse block (right front of engine compt) X235 X260 X408 X425 X500 X507 X700 X800 Power Door Locks Wiring Diagram (2 of 3) for Cadillac CTS 2012 List of elements for Power Door Locks Wiring Diagram (2 of 3) for Cadillac CTS 2012: 36 (coupe) driver door control module (driver's door) driver door latch Center console active keyless entry antenna (w/ keyless entry) Center console passive keyless entry antenna (under floor console) Computer data lines system Coupe Data sig Driver exterior door handle switch Driver information center (dic) display Driver interior door handle switch G200 (left kick panel) G201 (right kick panel) Instrument panel cluster (ipc) J201 J510 J517 J617 Lock sig Logic Low ref Passenger door control module (coupe) Passenger exterior door handle switch Passenger interior handle switch Pnk Right keyless entry antenna Security ind Sedan & wagon Sply volt Tan W/ passive entry W/o passive entry X237 X500 X505 X600 X605 Power Door Locks Wiring Diagram (3 of 3) for Cadillac CTS 2012 List of elements for Power Door Locks Wiring Diagram (3 of 3) for Cadillac CTS 2012: 64 (or tan) (right kick panel) g201 (right rear shock tower) g401 (sedan/wagon) lck relay (sedan/wagon) unlck relay (w/o deluxe interior lamp package) j510 (w/o deluxe interior lamp package) j610 (w/ deluxe interior lamp package) j605 87a Backlight lp Coax Computer data lines system Computer data lines system (or 294) Coupe Courtesy lp hi Courtesy lp lo Door latch Door lck Dr/lck fuse 15a Driver door lock/ window switch Drv door latch Drv door lck Drv door sw G200 (left kick panel) G201 (right kick panel) G401 (right rear shock tower) Gnd Hot at all times Ic 2 ctrl Interior lights system J505 (w/ deluxe interior lamp package) J610 Keyless entry antenna Lf door ajar Lf door handle Lf dr sw sig Lock Logic Nca Network 1 Network 2 Passenger door handle switch (sedan/wagon) Passenger door latch (passenger's door) Passenger door lock/ window switch Pdm fuse 15a Pnk Rear fuse block (right rear of luggage compt) Release sig Remote control door lock receiver (rcdlr) (w/o passive entry) (coupe or sedan: right side of rear shelf) (wagon: left rear of roof) Rf door ajar Rf door handle Rf dr sw sig Right front door handle keyless entry antenna Sedan/wagon Serial data Tan Trunk, tailgate, fuel doors system Unlock W/ passive entry W/o passive entry X500 X505 X600 X605 X607
POWER MIRRORS Automatic Day/Night Mirror Wiring Diagram, with Infotainment System 1/2/3 & Rearview Camera for Cadillac CTS 2012 List of elements for Automatic Day/Night Mirror Wiring Diagram, with Infotainment System 1/2/3 & Rearview Camera for Cadillac CTS 2012: 41 (or 851) (w/ garage door opener) j378 Automatic day/night mirror Batt positive volt Computer data lines system Data bus+ Data bus- Display Emergency ind Emergency switch G401 (coupe/sedan) (right rear shock tower) G402 (left rear shock tower) G402 (wagon) (left rear shock tower) Garage door opener (gdo) Gnd Ground Hot at all times Inside rearview mirror (isrvm) J240 Keypad green led ind Keypad green led ind sig Keypad red led ind Keypad red led ind sig b+ Keypad sig Keypad sply volt Logic Navigation system On star button assembly Onstar fuse 10a Onstar ind Onstar switch Phone ind Phone switch Pnk Rear fuse block (right rear of luggage compt) Tan Theft/ ugdo fuse 10a Vehicle communication interface module (vcim) (behind right rear strut tower) X200 X207 X408 Automatic Day/Night Mirror Wiring Diagram, with Infotainment System 1/2/3 without Rearview Camera for Cadillac CTS 2012 List of elements for Automatic Day/Night Mirror Wiring Diagram, with Infotainment System 1/2/3 without Rearview Camera for Cadillac CTS 2012: 46 (body harness, near branch for g102) j379 (or 851) (right rear shock tower) (coupe/sedan) g401 (w/ garage door opener) j378 Automatic day/night mirror Backup lp sply volt Batt positive volt Body control module (bcm) (center of dash) Computer data lines system Data bus+ Data bus- Emergency ind Emergency switch Exterior lights system G402 (left rear shock tower) G402 (wagon) (left rear shock tower) Gnd Ground Hot at all times Hot w/ ign 1 relay energized Ign Inside rearview mirror (isrvm) Isrvm fuse 7.5a J240 Keypad green led ind Keypad green led sig Keypad red led ind Keypad red led sig Keypad sig Keypad sply volt Logic On star button assembly Onstar fuse 10a Onstar ind Onstar switch Phone ind Phone switch Pnk Rear fuse block (right rear of luggage compt) Tan Underhood fuse block (right front of engine compt) Vehicle communication interface module (vcim) (behind right rear strut tower) X200 X207 X225 X408 Automatic Day/Night Mirror Wiring Diagram, with Infotainment System 5.1/7/8 for Cadillac CTS 2012 List of elements for Automatic Day/Night Mirror Wiring Diagram, with Infotainment System 5.1/7/8 for Cadillac CTS 2012: 46 (body harness, near branch for g102) j379 (or 851) (right rear shock tower) (coupe/sedan) g401 (w/ garage door opener) j378 Automatic day/night mirror Backup lp sply volt Batt positive volt Body control module (bcm) (center of dash) Computer data lines system Data bus+ Data bus- Emergency ind Emergency switch Exterior lights system G402 (left rear shock tower) G402 (wagon) (left rear shock tower) Gnd Ground Hot at all times Hot w/ ign 1 relay energized Ign Inside rearview mirror (isrvm) Isrvm fuse 7.5a J240 Keypad green led ind Keypad green led sig Keypad red led ind Keypad red led sig Keypad sig Keypad sply volt Logic On star button assembly Onstar fuse 10a Onstar ind Onstar switch Phone ind Phone switch Pnk Rear fuse block (right rear of luggage compt) Tan Underhood fuse block (right front of engine compt) Vehicle communication interface module (vcim) (behind right rear strut tower) X200 X207 X225 X408 Power Mirrors Wiring Diagram for Cadillac CTS 2012 List of elements for Power Mirrors Wiring Diagram for Cadillac CTS 2012: 26 (left kick panel) g200 (right kick panel) g201 Computer data lines system Dr/lck fuse 15a Driver door lock/ window switch Driver outside rearview mirror (at mirror) Folding Hot at all times J510 J610 Left Logic Passenger door lock/ window switch Passenger outside rearview mirror (at mirror) Pdm fuse 15a Rear fuse block (right rear of luggage compt) Right Sel left Sel right W/ power folding mirror X500 X501 X505 X600 X601 X605
POWER SEATS Driver Power Seat Wiring Diagram for Cadillac CTS 2012 List of elements for Driver Power Seat Wiring Diagram for Cadillac CTS 2012: 15 Driver seat adjuster switch Driver seat front vertical motor (under passenger front seat) Driver seat horizontal motor Driver seat rear vertical motor (under passenger front seat) Driver seat recline motor (in passenger front seat back) Drv pwr seat circuit breaker 25a Front vertical G200 (left kick panel) Horizontal Hot at all times Rear fuse block (right rear of luggage compt) Rear vertical Recline Tan X301 Driver"s Lumbar Wiring Diagram for Cadillac CTS 2012 List of elements for Driver"s Lumbar Wiring Diagram for Cadillac CTS 2012: 27 10a Bolster in sw sig Bolster mtr in ctrl Bolster mtr out ctrl Bolster out sw sig Bolster pump Driver lumbar/ bolster fuse holder Driver seat back bolster adjuster switch Driver seat bolster adjuster valve Driver seat cushion bolster adjuster switch Driver seat lumbar adjuster switch Driver seat lumbar adjuster valve assembly Driver seat lumbar/bolster pump Drv pnr seat circuit breaker 25a G200 (left kick panel) Ground Hot at all times J361 J362 J364 J375 Lumbar down Lumbar forward Lumbar rearward Lumbar up Pnk Rear fuse block (right rear of luggage compt) Heated Seats Wiring Diagram (1 of 2) for Cadillac CTS 2012 List of elements for Heated Seats Wiring Diagram (1 of 2) for Cadillac CTS 2012: 47 (in passenger seat back) (in passenger seat back) driver seat back ventilation heating & cooling module (left kick panel) (w/ deluxe steering wheel & theft deterent) Batt positive volt Computer data lines system Coupe Driver back heated seat element (in driver front seat back) Driver cushion heated seat element (in driver front seat cushion) Driver seat back ventilation heating & cooling module Driver seat cushion ventilation Driver seat cushion ventilation heating & cooling module Drv seat blower spd ctrl Drv seat cushion heated mod cool ctrl Drv seat cushion heated mod heat ctrl Drv seat cushion temp sens low ref Drv seat cushion temp sens sig G200 G200 (left kick panel) Gnd Heating & cooling module Hot w/ ign 1 relay energized J375 J381 J383 J386 (driver's seat assembly harness, near driver seat cushion ventilation heat & cool module) Low spd gmlan serial data Memory seat module (msm) (under driver's seat) Memory system Misc ign fuse 10a Nca Pass seat blower spd ctrl Pass seat cushion heated mod cool ctrl Pass seat cushion heated mod heat ctrl Pass seat cushion temp sens sig Passenger back heated seat element (in passenger front seat back) Passenger cushion heated seat element (in passenger front seat cushion) Pnk Sedan & wagon Sens low ref Tan Underhood fuse block (right front of engine compt) W/ recaro front bucket seats W/o recaro front bucket seats X300 X301 X307 Heated Seats Wiring Diagram (2 of 2) for Cadillac CTS 2012 List of elements for Heated Seats Wiring Diagram (2 of 2) for Cadillac CTS 2012: 40 & cooling module (in passenger seat back) (in passenger seat back) passenger seat back ventilation heating & cooling module Computer data lines system Coupe Drv pwr seat circuit breaker 25a G201 (right kick panel) High ind Hot at all times J374 Left cooling switch Left fan down switch Left fan up switch Left heated Logic Low ind Med ind Memory systems Msm fuse 7.5a Nca Passenger seat back ventilation heating Passenger seat cushion ventilation heating Passenger seat cushion ventilation heating & cooling module Pnk Radio/hvac control (center of dash) Rear fuse block (right rear of luggage compt) Right cooling switch Right fan down switch Right fan up switch Right heated seat high switch Seat high switch Seat) Sedan/ W/ recaro front bucket seats W/o recaro front bucket seats W/o relaro front bucket seats Wagon X301 X307 X308 Heated Steering Wheel Wiring Diagram for Cadillac CTS 2012 List of elements for Heated Steering Wheel Wiring Diagram for Cadillac CTS 2012: 31 7.5a Body control module (center of dash) Cruise ctrl ind dimming sig G102 (right front of engine compt) G200 (left kick panel) Gnd Heated steering wheel Heated steering wheel control module Heated steering wheel on ind Heated steering wheel switch High ctrl Hot w/ ign 1 relay energized Ign Inflatable restraint steering wheel module coil (top of steering column) Inline fuse heated steering wheel control module J288 J289 J381 Led ctrl Left steering wheel control switch Misc ign fuse 10a Nca Pnk Red Sens sig Sw sig Underhood fuse block (right front of engine compt) Volt ref X201 X202 X206 Passenger Power Seat Wiring Diagram for Cadillac CTS 2012 List of elements for Passenger Power Seat Wiring Diagram for Cadillac CTS 2012: 17 (under passenger front seat) Front vertical G201 (right kick panel) Horizontal Hot at all times J374 J385 (w/ power lumbar seats) Pass pwr seat circuit breaker 25a Passenger seat adjuster switch Passenger seat front vertical motor Passenger seat horizontal motor (sedan/wagon) Passenger seat rear vertical motor (under passenger front seat) Passenger seat recline motor (in passenger front seat back) Rear fuse block (right rear of luggage compt) Rear vertical Recline Tan Passenger"s Lumbar Wiring Diagram, with Recaro Front Bucket Seat for Cadillac CTS 2012 List of elements for Passenger"s Lumbar Wiring Diagram, with Recaro Front Bucket Seat for Cadillac CTS 2012: 26 10a Bolster in sw sig Bolster mtr in Bolster mtr out Bolster out sw sig Bolster pump G201 (right kick panel) Ground Hot at all times J365 J385 J392 Lumbar down Lumbar forward Lumbar rearward Lumbar up Pass pwr seat circuit breaker 25a Passenger lumber/ bolster fuse holder Passenger seat back bolster adjuster switch Passenger seat bolster adjuster valve Passenger seat cushion bolster adjuster switch Passenger seat lumbar adjuster switch Passenger seat lumbar adjuster valve assembly Passenger seat lumbar/bolster pump Pnk Rear fuse block (right rear of luggage compt) Passenger"s Lumbar Wiring Diagram, without Recaro Front Bucket Seat for Cadillac CTS 2012 List of elements for Passenger"s Lumbar Wiring Diagram, without Recaro Front Bucket Seat for Cadillac CTS 2012: 11 Backward Forkward G201 (right kick panel) Hot at all times J374 J385 Pass pwr seat circuit breaker 25a Passenger seat lumbar adjuster switch Passenger seat lumbar horizontal motor (in passenger front seat back) Rear fuse block (right rear of luggage compt) X306
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram, Coupe for Cadillac CTS 2012 List of elements for Power Top/Sunroof Wiring Diagram, Coupe for Cadillac CTS 2012: 39 (not used) 6.2l Body control module (bcm) (center of dash) Computer data lines system Except 6.2l G401 (right rear shock tower) Gnd Hot at all times Interior lights system J372 J373 J377 J397 (fuel tank harness, near inline connector x420) Logic Power distribution system Rap fuse sply volt Rear fuse block (right rear of luggage compt) S/roof fuse 30a Select 1 Select 2 Select return Serial data Serial data bus + Serial data bus - Sunroof fuse 30a Sunroof module (rear of sunroof assembly) Sunroof shade module (left rear of sunroof assembly) Sunroof shade switch Sunroof sw data 1 Sunroof sw data 3 Sunroof sw data 4 Sunroof sw data 6 Sunroof switch Tan Underhood fuse block (right front of engine compt) X163 X200 X401 X405 Power Top/Sunroof Wiring Diagram, Sedan & Wagon for Cadillac CTS 2012 List of elements for Power Top/Sunroof Wiring Diagram, Sedan & Wagon for Cadillac CTS 2012: 46 (left rear shock tower) g402 (not used) (or 1050) (or 850) (right rear shock tower) g401 6.2l Batt pos vol Body control module (bcm) (center of dash) Computer data lines system Except 6.2l G401 (right rear shock tower) G402 (left rear shock tower) Ground Hot at all times Interior lights system J372 J373 J377 J397 (fuel tank harness, near inline connector x420) Logic Power distribution system Rap vol Rear fuse block (right rear of luggage compt) Red S/roof fuse 30a Sedan Serial data Serial data bus + Serial data bus - Sunroof fuse 30a Sunroof module (rear of sunroof assembly) Sunroof shade module (left rear of sunroof assembly) Sunroof shade switch Sunroof sw data 1 Sunroof sw data 3 Sunroof sw data 4 Sunroof sw data 6 Sunroof switch Tan Underhood fuse block (right front of engine compt) Wagon X163 X200 X401 X405 X408
POWER WINDOWS Power Windows Wiring Diagram for Cadillac CTS 2012 List of elements for Power Windows Wiring Diagram for Cadillac CTS 2012: 59 Batt pos volt Batt positive volt Body control module (bcm) (center of dash) Computer data lines system Coupe Driver door lock/window switch Driver window motor (driver's door) G200 (left kick panel) G201 (right kick panel) Gnd Hot at all times Interior lights system J510 J610 J715 J805 Left front window switch Left rear window motor (left rear door) Left rear window switch Left rear window switch (sedan/wagon) Lkout ctrl Lkout rr sig Lkout sig Local interconnect network 1 Local interconnect network 2 Logic Lr dn ctrl Lr dn sig Lr dn sw Lr up ctrl Lr up sig Lt/rear/ wndw circuit breaker 15a Passenger door lock/ window switch Passenger window motor (front passenger's door) Pwr/wndw circuit breaker 25a Rear fuse block (right rear of luggage compt) Rear/ wndw circuit breaker 15a Right front window switch Right rear window motor (right rear door) Right rear window switch Right rear window switch (sedan/wagon) Rr dn ctrl Rr dn sig Rr up ctrl Rr up sig Sedan & wagon Serial data Window index- ing Window indexing X235 X260 X500 X505 X600 X605 X700 X701 X800 X801
RADIO Radio Wiring Diagram, with Surround Amplifier (1 of 4) for Cadillac CTS 2012 List of elements for Radio Wiring Diagram, with Surround Amplifier (1 of 4) for Cadillac CTS 2012: 70 (i/p harness, near inline connector x200) (left rear shock tower) g402 (shield (w/ communication system wiring provision) hands free phone accommodation connector Audio common sig Audio drain wire Audio mute sig Audio out Auxiliary audio sig Batt+ volt Coax Computer data lines system Detection sig Drain wire Dsply ctrl Enable sig G402 (left rear shock tower) Gmlan serial data Gnd Ground Hot at all times Hot w/ ign 1 relay energized J200 J240 J250 J275 Left audio sig Lo level audio - Lo level audio sig Lo level audio sig+ Lo level audio sig- Lo ref/ground Logic Microphone sig or audio sig Misc ign fuse 10a Nav dsply sig Navi audio sig - Navigation antenna (infotainment system 4, 5, 7 & 5.1) (center of dash) Navigation antenna (w/ digital audio system s-band) (center rear of roof) Nca Pnk Radio Radio/hvac display w/ infotainment system 7, 8 & 5.1) Rdo fuse 15a Rear fuse block (right rear of luggage compt) Red/ Remote enable sig Remote radio ctrl Right audio sig Serial data hi Serial data lo Sig dsply nav Sig enable Tan Underhood fuse block (right front of engine compt) Usb Vics1 Vics2 Vics4 Vics6 Video display ctrl W/ infotainment system 7 & 8 W/ infotainment system 7, 8 & 5.1 W/ infotainment system 8 & 5.1 W/o hands free W/o infotainment system 7, 8 & 5.1 Wake-up sig X200 X205 X250 Radio Wiring Diagram, with Surround Amplifier (2 of 4) for Cadillac CTS 2012 List of elements for Radio Wiring Diagram, with Surround Amplifier (2 of 4) for Cadillac CTS 2012: 68 (left rear shock tower) g402 (sedan: center rear of headliner) (wagon: top of liftgate) radio antenna module (shield Ante- nna Anti-lock brakes system Audio screen Audio sig Auxiliary audio jack Batt+ volt Cellular telephone microphone (w/ communication & infotainment) Cellular, navigation & digital radio antenna Center high mounted stop lamp (chmsl) Coax Common sig Computer data lines system Ctrl sig Data bus+ Detection sig Drain Drain wire Exterior lights system Fm1 Fm2 G902 (top left of liftgate) G903 (top right of liftgate) Gm lan Ground Haz sw sig Hot at all times Infotainment J240 Lo ref Logic Nav mtr fuse 10a Navigation & traffic data antenna (w/ infotainment system 7) (top center of windshield) Nca Nca s Pnk Radio rear window antenna Radio/hvac control (w/ infotainment system 1, 2 & 3 Red Remote enable sig x2 Sedan Serial data Serial data hi Serial data lo Sig System 1, 2, 3 & 5.1 System 7 & 8 Tan Trac sw sig Under- hood fuse block (right front of engine compt) Usb Vehicle communication interface module (vcim) (w/ onstar) (behind right rear strut tower) W/ infotainment system 8 & 5.1 Wagon Wake-up sig X1 data bus- gm lan X207 X215 X222 X235 X238 X239 X245 X250 X303 X906 Radio Wiring Diagram, with Surround Amplifier (3 of 4) for Cadillac CTS 2012 List of elements for Radio Wiring Diagram, with Surround Amplifier (3 of 4) for Cadillac CTS 2012: 60 (center of dash) body control module (bcm) (left rear shock tower) g402 (overhead console) (steering wheel harness) Audio amplifier (sedan: rear of left rear strut tower) (wagon: left front of luggage compt) Audio mute sig Batt+ volt Computer data lines system Cruise control & transmission system Drain wire G402 (left rear shock tower) Gmlan serial data Ground Inflatable restraint steering wheel module coil (top of steering column) J288 J290 L audio sig (+) Left front speaker Left steering wheel control switch Lf speaker out + Lf speaker out - Lo level audio sig Lo spd gmlan serial data Lr speaker out + Lr speaker out - Mute sig Navi audio sig Nca Noise compensation microphone Phone sply volt Pnk R audio sig (+) Rear sub- woofer speaker Red Rf speaker out + Rf speaker out - Right front speaker Right steering wheel control switch Rr speaker out + Rr speaker out - Sedan & coupe Seek down Seek up Speaker out + Speaker out - Spkr out+ Spkr out- Sply volt Srce Tan Transmission system Voice Vol + Vol - W/ deluxe steering wheel Wagon X405 X406 X500 X600 Radio Wiring Diagram, with Surround Amplifier (4 of 4) for Cadillac CTS 2012 List of elements for Radio Wiring Diagram, with Surround Amplifier (4 of 4) for Cadillac CTS 2012: 42 (left rear shock tower) g402 (wagon) Amp fuse 30a Batt+ volt Center i/p speaker Coax Computer data lines system Coupe Coupe & sedan Drain wire Exterior lights system G401 (right rear shock tower) G408 (top of right "d" pillar) G904 (top of liftgate) Ground Hot at all times J430 J903 Left audio sig Left front tweeter speaker Left rear compartment speaker Left rear speaker Lo spd gmlan Nca Onstar fuse 10a Radio antenna inductor (wagon) (top of liftgate) Radio audio out Rdo/ spkr fuse 15a Rear fuse block (right rear of luggage compt) Right audio sig Right front tweeter speaker Right rear compartment speaker Right rear speaker Tan Television antenna amplifier Television rear glass antenna Television tuner (w/ infotainment system 7 & 8) Wagon & sedan X200 X220 X225 X900 Radio Wiring Diagram, without Surround Amplifier (1 of 4) for Cadillac CTS 2012 List of elements for Radio Wiring Diagram, without Surround Amplifier (1 of 4) for Cadillac CTS 2012: 75 (i/p harness, near inline connector x200) (w/ communication system wiring provision) hands free phone accommodation connector j Amp fuse 30a Antenna Audio common sig Audio mute sig Audio out Audio sig Auxiliary audio sig Batt+ volt Coax Coax antenna Computer data lines system Detection sig Digital radio antenna (w/ digital audio system s-band) (center rear of roof) Drain wire Dsply ctrl Enable sig G200 (left kick panel) G402 (left rear shock tower) Gmlan serial data Gnd Ground Hot at all times Hot w/ ign 1 relay energized J200 J240 J250 Left audio sig Lf lo lvl aud sig+ Lf lo lvl aud sig- Logic Lr lo lvl aud sig+ Lr lo lvl aud sig- Misc ign fuse 10a Nav audi sig- Nav mtr fuse 10a Navi dsply sig Navigation antenna (w/ infotainment system 4,5,7 & 5.1) (center of dash) Nca Pnk Radio Radio audio mute sig Radio/ hvac display (w/ infotainment system 7, 8 & 5.1) Rdo fuse 15a Rear fuse block (right rear of luggage compt) Rearview camera circuit Remote enable sig Remote radio ctrl Rf lo lvl aud sig+ Rf lo lvl aud sig- Right audio sig Rr lo lvl aud sig+ Rr lo lvl aud sig- Serial data hi Serial data lo Sig navi dsply Tan Underhood fuse block (right front of engine compt) Vics1 Vics2 Vics4 Vics6 Video display ctrl Voice recg low ref W/ infotainment system 7 & 8 W/ infotainment system 7, 8 & 5.1 W/ infotainment system 8 & 5.1 W/o hands free W/o infotainment system 7, 8 & 5.1 Wake-up sig X200 X205 X235 X250 Radio Wiring Diagram, without Surround Amplifier (2 of 4) for Cadillac CTS 2012 List of elements for Radio Wiring Diagram, without Surround Amplifier (2 of 4) for Cadillac CTS 2012: 62 (coupe: under rug in left rear footwell) (sedan: near base of left "c" pillar) (wagon: 17 cm from breakout to g200) j350 (left rear shock tower) g402 Ante- nna Anti-lock brakes system Audio screen Audio sig Auxiliary audio jack Batt+ volt Cellular telephone microphone (w/ communication & infotainment) Cellular, navigation & digital radio antenna Center high mounted stop lamp (chmsl) Coax Common sig Computer data lines system Ctrl sig Data bus+ Detection sig Drain Drain wire Exterior lights system Fm1 Fm2 G902 (top left of liftgate) G903 (top right of liftgate) Gm lan Ground Haz sw sig Infotainment J240 Lo ref Logic Microphine Navigation & traffic data antenna (w/ infotainment system 7) (top center of windshield) Nca Pnk Radio antenna module (sedan: center rear of headliner) (wagon: top of liftgate) Radio rear window antenna Radio/hvac control (w/ infotainment system 1, 2 & 3 Red Sedan Serial data Serial data hi Serial data lo Sig enable remote System 1, 2, 3 & 5.1 System 7 & 8 Tan Trac sw sig Vehicle communication interface module (vcim) (w/ onstar) (behind right rear strut tower) W/ infotainment system 8 & 5.1 Wagon Wake-up sig X1 data bus- gm lan X2 sig X207 X215 X222 X238 X245 X250 X303 X906 Radio Wiring Diagram, without Surround Amplifier (3 of 4) for Cadillac CTS 2012 List of elements for Radio Wiring Diagram, without Surround Amplifier (3 of 4) for Cadillac CTS 2012: 55 (or 1704) (or 1794) (or 340) (or 346) (or tan) A tan Audio amplifier (sedan: rear of left rear strut tower) (wagon: left front of luggage compt) Audio mute sig B tan Center i/p speaker Coupe G402 (left rear shock tower) Ground Left front door speaker Left front tweeter speaker Left rear speaker Lf lo level audio sig+ Lf lo level audio sig- Lf speaker out + Lf speaker out - Lr lo level audio sig+ Lr lo level audio sig- Lr speaker out + Lr speaker out - Nca Rear subwoofer speaker Red Remote enable sig Rf lo level audio sig+ Rf lo level audio sig- Rf speaker out + Rf speaker out - Right front door speaker Right front tweeter speaker Right front tweeter speaker (wagon) Right rear speaker Rr lo level audio sig+ Rr lo level audio sig- Rr speaker out + Rr speaker out - Sedan Sedan & coupe Sedan & wagon Speaker out + Speaker out - Tan Wagon X200 X225 X500 X600 X700 X701 X800 X801 Radio Wiring Diagram, without Surround Amplifier (4 of 4) for Cadillac CTS 2012 List of elements for Radio Wiring Diagram, without Surround Amplifier (4 of 4) for Cadillac CTS 2012: 48 (left rear shock tower) g402 Batt+ volt Body control module (bcm) (center of dash) Coax Computer data lines system Cruise control & transmissions system Drain wire Exterior lights system G401 (right rear shock tower) G408 (top of right "d" pillar) G904 (top of liftgate) Ground Hot at all times Inflatable restraint steering wheel module coil (top of steering column) J288 J290 (steering wheel harness) J430 J903 Left audio sig Left steering wheel control switch Lo spd gmlan Lo spd gmlan serial data Nca Onstar fuse 10a Radio antenna inductor (wagon) (top of liftgate) Radio audio out Radio ctrl sply vol Rear fuse block (right rear of luggage compt) Right audio sig Right steering wheel control switch Sedan & coupe Seek down Seek up Source Sply volt Steering whl ctrl sig Television antenna amplifier Television rear glass antenna Television tuner (w/ infotainment system 7 & 8) Transmissions system Voice Vol + Vol - W/ deluxe steering wheel Wagaon X220 X225 X900 Video System Wiring Diagram for Cadillac CTS 2012 List of elements for Video System Wiring Diagram for Cadillac CTS 2012: 26 Clock sig Digital video disc (dvd) control module Digital video disc (dvd) control module inline fuse Driver seat headrest digital video disc (dvd) display Fm ant Fm antenna G200 (left kick panel) Gnd Hot w/ ign 1 relay energized I2c data Ign Ign volt Isrvm fuse 7.5a J211 L audio (+) Passenger seat headrest digital video disc (dvd) display Pnk R audio (+) Red Underhood fuse block (right front of engine compt) Video sig (+) Video sig (-) X371 X372 X373 X374
SHIFT INTERLOCK Ignition Lock Solenoid Wiring Diagram for Cadillac CTS 2012 List of elements for Ignition Lock Solenoid Wiring Diagram for Cadillac CTS 2012: 21 (center of dash) body control module (bcm) A/t Automatic transmission shift lever Bcm 1 fuse 10a G102 (right front of engine compt) G200 (left kick panel) Hot at all times Ignition lock cylinder control actuator (on steering column) Ignition lock cylinder control switch J200 J205 M/t Rear fuse block (right rear of luggage compt) Remote control door lock receiver (rcdlr) (sedan/coupe: right side of rear shelf) (wagon: left rear of roof) Rke/ pass-key/ mdl fuse 10a Shift position signal Underhood fuse block (right front of engine compt) W/ remote start W/o remote start X202 X225 Park Brake System Wiring Diagram for Cadillac CTS 2012 List of elements for Park Brake System Wiring Diagram for Cadillac CTS 2012: 41 (right rear shock tower) 12 volt 12 volt ref 5 volt ref 5-volt ref 1 6.2l Body control module (bcm) (center of dash) Brake pedal position sensor (top of brake pedal) Brk pos sens sig Computer data lines system Driver information center (dic) display Engine control module (ecm) (except 6.2l: left front of engine compt) (6.2l: right rear of engine compt) Epb fuse 30a Except 6.2l G201 (right kick panel) G401 Ground Hi spd gmlan + Hi spd gmlan - Hot at all times Instrument cluster Interior lights system J308 Logic Low ref Low reference Park brake ind Park brake switch (on park brake assembly) Parking brake control module Release sig Serial data Stop lamp sw sig Tan Tan k Tan l Tan m Underhood fuse block (right front of engine compt) X104 X163 X237 X402 Shift Interlock Wiring Diagram for Cadillac CTS 2012 List of elements for Shift Interlock Wiring Diagram for Cadillac CTS 2012: 32 5 volt ref 5-volt ref 1 6.2l Automatic transmission Automatic transmission internal mode switch (ims) Automatic transmission shift lever Automatic transmission shift lock control solenoid Battery pos volt Bcm 1 fuse 10a Body control module (bcm) (center of dash) Brake pedal position sensor (top of brake pedal) Brk pos sens sig Computer data lines system Control solenoid valve assembly Engine control module (ecm) (except 6.2l: left front of engine compt) (6.2l: right rear of engine compt) Except 6.2l G200 (left kick panel) Gnd Hi spd gmlan + Hi spd gmlan - Hot at all times J200 J376 Low ref Park/neutral Shift lock ctrl sol Stop lamp sw sig Tan Transmission control module (tcm) Transmissions system Underhood fuse block (right front of engine compt) X104
STARTING/CHARGING Charging Wiring Diagram for Cadillac CTS 2012 List of elements for Charging Wiring Diagram for Cadillac CTS 2012: 34 200a 3.0l&3.6l 6.2l Battery Battery current sensor (right rare of luggage compt) Body control module (bcm) (center of dash) Charge ind Computer data lines system Current sens low ref Current sens sig Current sens sply volt Driver information center (dic) Engine control module (ecm) (6.2l: right rear of engine compt) (3.0l & 3.6l: left front of engine compt) G201 (right kick panel) G405 (right side of luggage compt) Gen duty cycle sig Gen turn on sig Generator Ground Inline fuse generator Instrument panel cluster (ipc) Logic Low speed gmlan serial data Pnk Power distribution system Rear fuse block (right rear of luggage compt) Red Rvc/snsr fuse 10a Serial data bus+ Serial data bus- Starter motor Tan Underhood fuse block (right front of engine compt) X260 Starting Wiring Diagram for Cadillac CTS 2012 List of elements for Starting Wiring Diagram for Cadillac CTS 2012: 36 3.0l & 3.6l 5v ref 6.2l Acc Automatic transmission Automatic transmission internal mode switch (ims) Battery Body control module (bcm) (center of dash) Charging circuit Clutch pedal position (cpp) sensor (m/t) (top of clutch pedal assembly) Clutch position sens rtn Clutch position sens sig position Computer data lines system Control solenoid valve assembly Engine control module (ecm) (6.2l: right rear of engine compt) (3.0l & 3.6l: left front of engine compt) G104 (near right headlight) G405 (right side of luggage compt) Ign lk cyl ctrl actr sig trans park/ntrl sig Ignition switch Off Off/run/crank volt Power distribution system Red Run Serial data bus+ Serial data bus- Start Starter motor Starter relay Starter relay coil ctrl Strtr fuse 40a Tan Transmission control module Underhood fuse block (right front of engine compartment) X105 X240 c
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 2) for Cadillac CTS 2012 List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Cadillac CTS 2012: 61 (driver's door) left front inflatable restraint side impact sensor (left side of passenger seat cushion) (left side roof rail) driver inflatable restraint roof rail module (outer side of left front seat) left inflatable restraint side impact module (outer side of right front seat) right inflatable restraint side impact module (passenger's door) right front inflatable restraint side impact sensor A x345 B11 B12 C x350 Coupe D x345 Driver seat belt buckle Driver seat belt buckle pretensioner Driver seat belt hi ctrl Driver seat belt lo ctrl Driver seat belt retractor pretensioner Driver seat belt sw sig Driver seat belt switch Drv seat belt sw low ref High ctrl seat belt Inflatable restraint sensing & diagnostic module (sdm) (under center console) Lf discriminating sens low ref Lf discriminating sens sig Lf head curtain mod hi ctrl Lf head curtain mod lo ctrl Lf side impact mod hi ctrl Lf side impact mod lo ctrl Lf side impact sensing mod low ref Lh side impact sensor sig Low ctrl seat belt Lr side impact sensing mod Pass seat belt hi ctrl Pass seat belt lo ctrl Pass seat belt sw low ref Passenger inflatable restraint roof rail module (right side roof rail) Passenger seat belt buckle Passenger seat belt pretensioner Passenger seat belt retractor pretensioner (base of right "b" pillar) Passenger seat belt switch Pin shorting bars engaged Pnk Rf head curtain mod high ctrl Rf head curtain mod low ctrl Rf side impact mod hi ctrl Rf side impact mod lo ctrl Rf side impact sensing mod Rf side impact sensing mod low ref rh side impact sensor sig Right rear inflatable restraint side impact sensor (right rear door) Rr side impact sensing mod low ref rr side impact sensing mod hi ref Seat belt sw sig Sedan/wagon Shorting bar When module connector is disconnected from harness: (shorting bars are connected between following pins in connector x2: 13-14, 15-16, 17-18, 37-38, 39-40 & 53-54) X300 X301 X307 X350 f X500 X600 X800 Supplemental Restraints Wiring Diagram (2 of 2) for Cadillac CTS 2012 List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Cadillac CTS 2012: 57 (front of engine compt) left inflatable restraint front end sensor (front of engine compt) right inflatable restraint front end sensor Air bag fuse 10a Air bag ign fuse 10a Air bag ind Air bag off ind Air bag on ind B11 B12 Batt positive volt Computer data lines system Data serial Driver information center display Driver seat belt ind G201 (right kick panel) G306 (under driver's seat) Gmlan lo spd Gnd Ground Hot at all times Hot in on or start I/p mod hi ctrl stage 1 I/p mod hi ctrl stage 2 I/p mod lo ctrl stage 1 I/p mod lo ctrl stage 2 Ign volt Inflatable restraint front passenger presence system (pps) module (under passenger seat) Inflatable restraint i/p module (right side of dash) Inflatable restraint sensing & diagnostic module (sdm) (under center console) Inflatable restraint steering wheel module (on steering wheel) Inflatable restraint steering wheel module coil (top of steering column) Instrument panel cluster Left rear inflatable restraint side impact sensor (left rear door) Lo spd gm lan serial data Lo spd gmlan serial data Logic Nca Passenger seat belt ind Pin shorting bars engaged Pnk Power distribution system Radio/hvac control Rear fuse block (right rear of luggage compt) Sedan/wagon Serial data Shorting bar Steer whl hi ctrl stage 2 Steer whl lo ctrl stage 2 Tan Underhood fuse block (right front of engine compt) When module connector is disconnected from harness: (shorting bars are connected between following pins in connector x1: 1-2, 3-4, 5-6 & 7-8) X200 X203 X235 X254 X307 X700
TRANSMISSION A/T Wiring Diagram for Cadillac CTS 2012 List of elements for A/T Wiring Diagram for Cadillac CTS 2012: 93 (steering wheel harness) j290 3.0l & 3.6l 6.2l Acc Acc volt Accessory wakeup serial data Automatic transmission assembly Automatic transmission fluid pressure manual valve position switch Automatic transmission fluid temperature (tft) sensor Automatic transmission input shaft speed sensor (iss) Automatic transmission internal mode switch (ims) Automatic transmission manual shift switch Automatic transmission output shaft speed sensor (oss) Body control module (bcm) (center of dash) Cluster Computer data lines Computer data lines system Control solenoid valve assembly Cruise control & sound systems Data bus (+) Data bus (-) Driver information center (dic) display Ecm/tcm ign fuse 15a Engine control module (ecm) (3.6l: left front of engine compt) (except 3.6l: right rear of engine compt) G132 (top right of engine) Gmlan Gmlan serial data bus+ Gmlan serial data bus- Gnd Hot at all times Hot w/ ign 1 relay energized Ign Ign 1 volt Ign lock sig Ignition switch Inflatable restraint steering wheel module coil (top of steering column) Instrument Iss sig Iss/oss ctrl J127 J285 (steering column harness, near branch for body control module) J291 Left automatic transmission manual shift switch (if equipped) Logic Low ref Off Oss sens P/n sig Pc 1 solenoid Pc 2 solenoid Pc 3 solenoid Pc 4 solenoid Pc 5 solenoid Pnk Power distribution system Pressure control (pc) solenoid valve 1 Pressure control (pc) solenoid valve 2 Pressure control (pc) solenoid valve 3 Pressure control (pc) solenoid valve 4 Pressure control (pc) solenoid valve 5 Red Red b Remote radio ctrl sply vol Remote shift selector sig Right automatic transmission manual shift switch (if equipped) Run Shift solenoid (ss) valve 1 Shift solenoid (ss) valve 2 Ss 1 Ss 2 Start System Tan Tap up/ down switch Tap up/tap down sw sig Tcc solenoid Tcm batt fuse 15a Tfp 1 Tfp 3 Tfp 4 Tfp 5 Tft Torque converter clutch (tcc) pressure control (pc) solenoid valve Trans enable switch Transmission control module (tcm) Transmission shift lever Trns range sig a Trns range sig b Trns range sig c Trns range sig p Underhood fuse block (right front of engine compt) Wakeup serial X202 AWD Wiring Diagram for Cadillac CTS 2012 List of elements for AWD Wiring Diagram for Cadillac CTS 2012: 34 (center of dash) body control module (bcm) Awd fuse 15a Batt + Clutch coil ctrl Clutch coil rtn Computer data lines system Driver information center (dic) Ecm/ tcm ign fuse 15a G200 (left kick panel) Gmlan Ground Hot at all times Hot w/ ign 1 relay energized Ign Instrument panel cluster (ipc) J200 Logic Oil temp 5v ref Oil temp sens sig Pnk Power distribution system Resistor 5v ref Resistor sig Serial data Serial data bus+ Serial data bus- Tan Transfer case clutch coil (rear of transfer case) Transfer case fluid temperature sensor (rear of transfer case) Transfer case shift control module (right side of dash) Underhood fuse block (right front of engine compt) Wakeup Wakeup serial X105 Rear Differential Cooler Wiring Diagram for Cadillac CTS 2012 List of elements for Rear Differential Cooler Wiring Diagram for Cadillac CTS 2012: 28 5v ref Computer data lines system Coupe Diff pump fuse 20a Differential cooler pump Differential cooler pump relay 1 Differential cooler pump relay 2 (coupe) Differential temperature switch Driver information center (dic) display Ecm/tcm ign fuse 15a G401 (right rear shock tower) Gmlan ser data Hot at all times Hot w/ ign relay energized Instrument panel cluster (ipc) J410 (differential cooling pump jumper harness, near breakout to x441) Logic Oil temp sens sig Pnk Power distribution system Rear differential temperature sensor Rear fuse block (right rear of luggage compt) Sedan/ wagon Underhood fuse block (right front of engine compt) X200 X260 X402 X441
TRUNK, TAILGATE, FUEL DOOR Liftgate Release Wiring Diagram for Cadillac CTS 2012 List of elements for Liftgate Release Wiring Diagram for Cadillac CTS 2012: 49 (liftgate harness, 12 cm past x903) j907 (liftgate harness, 15 cm from breakouts to liftgate module) (extended range & passive entry lock control) j905 (right side of liftgate) 3/4 30a Ajar sw sig Close sig Computer data lines system Disply fuse 10a Driver door lock/ window switch Driver information center (dic) display Exterior liftgate control switch G408 (top of right "d" pillar) Ground Hot at all times Instrument panel cluster (ipc) Interior liftgate control switch Lamp ctrl Lamps ctrl Left liftgate object sensor (left side of liftgate) Liftgate close switch Liftgate latch assembly (lower center of liftgate) Liftgate module (lgm) (right side of liftgate) Liftgate module (lgm) inline fuse (near rear fuse block) Liftgate motor assembly (left rear of luggage compt) Logic Low ref Max Msm fuse 7.5a Mtr close ctrl Mtr open ctrl Nca Object sens sig Off On/off sw sig Power distribution system Rear fuse block (right rear of luggage compt) Right liftgate object sensor Ser data Sw open sig Sw sig Underhood fuse block (right front of engine compt) X500 X501 X900 X901 X902 X903 X904 Trunk & Fuel Door Release Wiring Diagram for Cadillac CTS 2012 List of elements for Trunk & Fuel Door Release Wiring Diagram for Cadillac CTS 2012: 50 (coupe) (sedan) 87a Ajar sw sig B (sedan) Body control module (bcm) (center of dash) Computer data lines system Coupe Door locks system Dr/lck Driver door lock/ window switch Driver information center (dic) display Exterior rear compartment lid release switch (w/ remote start) Fuel door release actuator (if equipped) (right rear of luggage compt) Fuel/ dr/ relse relay Fuse 15a G401 (right rear shock tower) Gnd H b+ Hot at all times Instrument panel cluster (ipc) Interior rear compartment lid release switch J394 (body harness, near branch to inflatable restraint sensing & diagnostic module) J430 L serl data Lamps ctrl Lck relay Logic Low gmlan serl data x7 Low speed gmlan serial data Mtr release ctrl x7 P trnk rel ctrl x1 Pnk Rear compartment lid latch Rear fuse block (right rear of luggage compt) Release sw Remote control door lock receiver (rcdlr) (w/ remote start) (coupe/sedan: right side of rear shelf) (wagon: left rear of roof) Rke/pass key/mdl fuse 10a Sedan Serl data Solenoid ctrl Tan Trunk/ relse fuse 15a Trunk/ relse relay (sedan) Trunk/relse relay (coupe) (rear fuse block) Unlk rly ctrl X208 X235 X260 X900
WARNING SYSTEMS Warning Systems Wiring Diagram for Cadillac CTS 2012 List of elements for Warning Systems Wiring Diagram for Cadillac CTS 2012: 91 (left rear door) (right kick panel) g201 Acc Audio amplifier (w/ surround amplifier) (sedon: rear of left rear strut tower) (wagon: left front of lauggage compt) Auto Batt positive volt Bcm 3 fuse 10a Bcm 4 fuse 10a Body control module (bcm) (center of dash) Brake fluid level switch (on brake fluid reservoir) Brake ind Computer data lines system Coupe Crank volt Driver door latch (driver's door) Driver door lock/window switch Driver information center (dic) display Driver seat belt buckle Driver seat belt ind Driver seat belt sw sig Driver seat belt switch G102 (right front of engine compt) G200 (left kick panel) G201 (right kick panel) Ground Hdlmps off Hdlmps on Head Hot at all times Ignition switch Ind ctrl Inflatable restraint sensing & diagnostic module (sdm) (under center console) Instrument panel cluster (ipc) J205 J510 (coupe) J610 J710 J810 Key in ign sw sig Key in ignition switch Left rear door latch (sedon & wagon) Lf door ajar Lh seat belt sw low ref Lo spd gm lan serial data Lo spd gmlan serial data Logic Low tire pressure ind Lr door ajar sw Off Park Park brake sw sig Park brake switch (on park brake assembly) Park ind Park lamp on sig Pass seat belt ind Pass seat belt sw low ref Passenger door latch (passenger's door) Passenger door lock/window switch Passenger seat belt buckle Passenger seat belt switch Radio Radio/havc control Remote control door lock receiver (rcdlr) (sedan/coupe: right side of rear shelf) (wagon: left rear of roof) Rf door ajar Right rear door latch (sedon & wagon) (right rear door) Rr door ajar sw Run Seat belt sw sig Sedan/wagon Serial data Serial data bus+ Serial data bus- Start Tan Turn signal/ multi-function switch Underhood fuse block (right front of engine compt) W/ keyless engine start switch W/o keyless engine start switch X201 X202 X235 X260 X300 X301 X307 X500 X505 X600 X605 X700 X800
WIPER/WASHER Wiper/Washer Wiring Diagram, Coupe for Cadillac CTS 2012 List of elements for Wiper/Washer Wiring Diagram, Coupe for Cadillac CTS 2012: 39 (on washer fluid reservoir) windshield washer fluid pump 3.0l & 3.6l 6.2l 87a Body control module (bcm) (center of dash) Computer data lines system Driver information center (dic) display Drl wsw fuse 10a Fr wiper sw high sig G102 (right front of engine compt) G104 (near right headlight) G110 (near abs module) Hdm wash fuse 20a Head lamp Headlamp relay ctrl Headlamp washer fluid pump (if equipped) (in washer reservoir) Hot at all times Instrument panel cluster (ipc) Logic Low ind ctrl Low spd gmlan Pnk Tan Underhood fuse block (right front of engine compt) Wash relay Washer switch Windshield relay ctrl Windshield sw high Windshield sw sig Windshield sw sig 2 Windshield washer fluid level switch Windshield wiper motor Windshield wiper motor (left side of firewall) Windshield wiper sw Windshield wiper/washer switch Wpr fuse 30a Wpr hi relay Wpr relay Wsw pump relay Wiper/Washer Wiring Diagram, Sedan for Cadillac CTS 2012 List of elements for Wiper/Washer Wiring Diagram, Sedan for Cadillac CTS 2012: 39 (on washer fluid reservoir) windshield washer fluid pump 3.0l & 3.6l 6.2l 87a Body control module (bcm) (center of dash) Computer data lines system Driver information center (dic) display Drl wsw fuse 10a Fr wiper sw high sig G102 (right front of engine compt) G104 (near right headlight) G110 (near abs module) Hdm wash fuse 20a Head lamp Headlamp relay ctrl Headlamp washer fluid pump (if equipped) (in washer reservoir) Hot at all times Instrument panel cluster (ipc) Logic Low ind ctrl Low spd gmlan Pnk Tan Underhood fuse block (right front of engine compt) Wash relay Washer switch Windshield relay ctrl Windshield sw high Windshield sw sig Windshield sw sig 2 Windshield washer fluid level switch Windshield wiper motor Windshield wiper motor (left side of firewall) Windshield wiper sw Windshield wiper/washer switch Wpr fuse 30a Wpr hi relay Wpr relay Wsw pump relay Wiper/Washer Wiring Diagram, Wagon (1 of 2) for Cadillac CTS 2012 List of elements for Wiper/Washer Wiring Diagram, Wagon (1 of 2) for Cadillac CTS 2012: 33 3.0l & 3.6l 6.2l 87a Accessory voltage Body control module (bcm) (center of dash) Computer data lines system Fr wiper sw high sig G102 (right front of engine compt) G110 (near abs module) Headlamp relay ctrl Hot at all times J901 Low ref Low spd gmlan ser data Power distribution system Tan Underhood fuse block (right front of engine compt) Washer rly ctrl Washer switch Windshield Windshield sw high sig Windshield sw sig 2 Windshield wiper motor (left side of firewall) Windshield wiper/washer switch Wiper mtr park sw sig Wiper sw low sig Wpr fuse 30a Wpr hi relay Wpr relay X202 X235 X260 X901 Wiper/Washer Wiring Diagram, Wagon (2 of 2) for Cadillac CTS 2012 List of elements for Wiper/Washer Wiring Diagram, Wagon (2 of 2) for Cadillac CTS 2012: 26 Accessory volt Battery positive voltage G102 (right front of engine compt) G104 (near right headlight) G401 (right rear shock tower) G408 (top of right "d" pillar) Gnd Hdm wash fuse 20a Head lamp wash relay Headlamp washer fluid pump (if equipped) (in washer reservoir) Hot at all times J903 Logic Rear fuse block (right rear of luggage compt) Rear window washer fluid pump relay Rear window washer rly ctrl Rear window wiper motor (center of liftgate) Rear window wiper switch sig Rear wiper fuse 15a Underhood fuse block (right front of engine compt) Washer pump fuse 10a Windshield washer fluid pump (on washer fluid reservoir) Windshield washer pump relay X208 X900 X900 f
