All Wiring Diagrams for Cadillac CTS 2004

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 3) for Cadillac CTS 2004

List of elements for Automatic A/C Wiring Diagram (1 of 3) for Cadillac CTS 2004:

• 3.2l
• 5 volt reference
• After boil pump relay ctrl
• Air inlet motor
• Amb air temp sensor sig
• Ambient light sensor signal
• Battery
• Blower fuse 40a
• Blower mtr speed ctrl
• Blower relay
• Blower relay ctrl
• Ccp fuse 10a
• Cmp clu relay
• Comp clutch fuse 10a
• Computer data lines system
• Coolant level switch signal
• Door a
• Door b
• Dr air temp door ctrl b
• Driver air temp door ctrl a
• Driver air temp posit signal
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• Evap low temp sens signal
• Evaporator temperature sensor (on right side of evaporator case)
• F10
• F11
• F12
• F13
• F14
• F15
• F16
• G201 (behind right kick panel)
• Ground
• Hot at all times
• Hot in run
• Hvac control module (behind center of dash, below radio)
• Ign 3 fuse 10a
• Ignition 3 voltage
• Inside air temp sensor sig
• Inside air temperature sensor
• Joint connector
• Left rear fuse block (below left rear seat)
• Left sunload sensor signal
• Low reference
• Mode door ctrl a
• Mode door ctrl b
• Mode door position signal
• Nca
• Pass air temp door ctrl a
• Pass air temp door ctrl b
• Pass air temp posit signal
• Pnk
• R51
• R52
• R53
• R54
• R55
• R56
• R57
• R58
• Recirc door ctrl a
• Recirc door ctrl b
• Recirculation actuator (left side of the blower motor)
• Right sunload sensor signal
• S117
• Serial data
• Solid state
• Splice pack sp302
• Sunload sensor (top center of i/p, on defrost grill)
• Tan
• Underhood fuse block (right front of engine compartment)
• Volt

Automatic A/C Wiring Diagram (2 of 3) for Cadillac CTS 2004

List of elements for Automatic A/C Wiring Diagram (2 of 3) for Cadillac CTS 2004:

• (3.2l)
• (3.6l)
• (5.7l)
• (in blower motor harness, 115 cm from c323) s323
• (in hvac module harness, 6 cm from c321)
• 3.2l
• A/c
• A/c compressor clutch
• Acc
• After boil coolant pump (on right side of engine block)
• After boil fuse 10a
• After boil relay (3.2l)
• Blower motor (on right side of hvac module)
• Blower motor control processor (on lower left side of blower motor)
• Blower mtr speed ctrl
• Cold
• Def
• Driver air temperature actuator (on hvac module)
• Dry air temp signal
• G100 (left rear side of engine)
• G100 (left rear side of engine) g132 (front of right cylinder head) g142 (rear of right cylinder head)
• G201 (behind right kick panel)
• Hot
• Hot at all times
• Ignition switch
• Lock
• Logic
• Mix motor
• Mode actuator
• Mode actuator (on left side of hvac module)
• Mode valve signal
• Nca
• Off
• Pass air temp signal
• Passenger air temperature actuator (on hvac module)
• Pnk
• R11
• R12
• R13
• R15
• Right rear fuse block (below right rear seat)
• Run
• S118
• S202 (in the i/p harness, 48 cm from hazard switch connector)
• Splice pack sp200 (in right front of passenger compt, under dash, above steering column)
• Start
• Tan

Automatic A/C Wiring Diagram (3 of 3) for Cadillac CTS 2004

List of elements for Automatic A/C Wiring Diagram (3 of 3) for Cadillac CTS 2004:

• (3.2l)
• (except 3.2l) a
• (left rear side of engine) g100
• (near left front strut tower) g101
• (on right body rail, near right headlamp) g104
• (or 452)
• (or 470)
• 26 cm from starter motor connector)
• 3.2l
• 3.2l 3.6l
• 3.6l
• 5.7l
• 5v reference
• A/c clutch relay ctrl
• A/c refrig press sensor
• A/c refrigerant pressure sensor (near the left front strut tower)
• Ambient air temperature sensor (under front bumper, near front grille)
• Coolant bypass solenoid
• Coolant level switch (in left front corner of coolant surge tank)
• Ect sensor signal
• Engine control module (ecm) (3.6l (vin 7): front of right valve cover)
• Engine controls system
• Engine coolant low level
• Engine coolant temperature (ect) sensor (3.2l: rear of intake manifold) (3.6l: side of left cylinder head) (5.7l: front of left cylinder head)
• Except 5.7l
• Feed
• Hi speed fan relay
• Hi speed fan relay ctrl
• High fan fuse 30a
• Hot at all times
• Hot in on or start
• Htr vlv/cltch fuse 10a
• Left cooling fan (left side of radiator)
• Lo speed fan relay
• Logic
• Low fan fuse 30a
• Low reference
• Low speed fan relay ctrl
• Main relay
• Main relay ctrl
• Message center
• Pnk
• Powertrain control module
• R14
• R15
• R16
• R17
• R18
• R19
• R20
• R21
• R22
• R39
• R40
• R41
• R42
• R47
• R48
• R49
• R50
• Radio
• Right cooling fan (right side of radiator)
• Rtn
• S/p fan relay
• S111 s148 (3.6l) (3.2l) (in engine harness, (in engine harness under throttle body, 11.5 cm towards the right)
• S156 (3.6l (vin 7)) (in engine harness, approximately 24 cm from ebcm connector)
• Serial data
• Sig
• Splice pack sp102 (except 5.7l) (right front corner of engine compt)
• Tan
• Underhood fuse block (right front of engine compartment)

Compressor Wiring Diagram for Cadillac CTS 2004

List of elements for Compressor Wiring Diagram for Cadillac CTS 2004:

• (3.2l)
• (3.6l)
• (5.7l)
• (in engine harness, approximately 24 cm from ebcm connector) (3.6l (vin 7)) s156
• (or tan)
• 3.2l
• 3.6l
• 470 (or 452)
• 5.7l
• 5v reference
• A/c clutch relay ctrl
• A/c compressor clutch
• A/c refrig press sens sig
• A/c refrigerant pressure sensor (near the left front strut tower)
• Acc
• Comp clutch fuse 10a
• Comp clutch relay
• Computer data lines system
• Engine control module (ecm) (3.6l: front of right valve cover)
• Except 3.2l
• Except 5.7l
• Feed
• G100 (left rear side of engine) g132 (front of right cylinder head) g142 (rear of right cylinder head)
• Hot at all times
• Ignition switch
• Lock
• Low reference
• Nca
• Off
• Pnk
• Powertrain control module (pcm)
• R55
• R56
• R57
• R58
• Return
• Run
• Sig
• Splice pack sp102 (except 5.7l) (right front corner of engine compartment)
• Splice pack sp200 (in right front of passenger compt, under dash, above steering column)
• Start
• Tan
• Underhood fuse block (right front of engine compartment)

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Anti-lock Brakes Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• (on right frame rail, near abs module) g110
• (rear of right rear shock tower) g401
• 3.2l
• 3.6l
• 5 volt reference
• 5-volt reference
• 5.7l
• A10
• A11
• A12
• A13
• A14
• Abs fuse 10a
• Abs fuse 50a
• Abs indicator sig
• B10
• B11
• B12
• B13
• B14
• Bpp sensor signal
• Brake fluid pressure sensor sig
• Brake pedal position sensor (near top of brake pedal)
• Brake pump motor
• C10
• C11
• C12
• C13
• C14
• Change brake pads service stability sys stability sys off stability sys ready stability sys engaged traction engaged traction suspended service suspension sys
• Class 2 serial data
• Computer data lines system
• Delivered torque signal
• Electronic brake control module (ebcm) (at right front corner of engine compartment)
• Engine control module (ecm) (front of right valve cover)
• Except 5.7l
• Extended travel brake sw sig
• Extended travel brake switch sig
• Ground
• High effort ctrl
• Hot at all times
• Hot in run or start
• Ign 1 relay
• Lateral accelerometer signal
• Lf wheel speed sens low ref
• Lf wheel speed sens sig
• Logic
• Low effort ctrl
• Low reference
• Lr wheel speed sens low ref
• Lr wheel speed sens sig
• Message center
• Message request
• Nca
• Pnk
• Powertrain control module (pcm)
• R21
• R22
• R23
• R25
• Radio
• Requested torque signal
• Rf wheel speed sens low ref
• Rf wheel speed sens sig
• Right rear fuse block (below right rear seat)
• Rr wheel speed sens low ref
• Rr wheel speed sens sig
• S130
• Splice pack sp102 (right front corner of engine compt)
• Steering wheel position sig a
• Steering wheel position sig b
• Tan
• Throttle actuator control (tac) module (right front of engine compartment)
• Traction control data sig
• Traction control data signal
• Underhood fuse block (right front of engine compt)
• Variable effort steering actuator (on power steering rack assembly)
• W/ soft ride suspension system
• Yaw rate sensor signal

Anti-lock Brakes Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Anti-lock Brakes Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (3.2l: in engine harness, 21 cm from generator connector) (3.6l: in engine harness, 21 cm from variable effort steering actuator)
• (5.7l: in engine harness, 10 cm from where the pre ho2s branches from the main harness)
• (behind right kick panel) g201
• (behind the left kick panel) g200
• (in body harness, 22.5 cm from vcim connector) s300
• (in body harness, 22.5 cm from vcim connector) s301
• (in body harness, 31 cm from audio amplifier connector) s306
• (on back of left front wheel) left front wheel speed sensor (wss)
• (on back of right front wheel) right front wheel speed sensor (wss)
• (on inside of left rear wheel) left rear wheel speed sensor (wss)
• (on inside of right rear wheel) right rear wheel speed sensor (wss)
• 5.7l
• 5v reference
• A/t
• A12
• Abs ind
• Abs ind sig
• B12
• Bas fuse 15a
• Base relay
• Brake fluid pressure sensor (on rear of brake pressure modulator valve)
• Class 2 serial data
• Computer data lines system
• Electronic prndl (except 5.7l
• Except 5.7l
• Exterior lights system
• G402 (rear of left rear shock tower)
• Ground
• Hot at all times
• Instrument panel cluster (ipc)
• Joint connector
• Lateral accelerometer sig
• Left rear fuse block (below left rear seat)
• Logic
• Low reference
• Main harness)
• Rear integration module (under package shelf trim panel)
• S101 (w/ active brake control)
• S200
• S302 (in body harness, 36 cm from audio amplifier connector)
• Sport mode
• Sport mode switch signal
• Steering wheel position sensor (near middle of steering column)
• Tan
• Traction control off ind
• Traction control switch
• Winter mode
• Winter mode switch signal
• Yaw rate & lateral acceleration sensor (w/ active brake control) (under center console) console)
• Yaw rate sens signal

ANTI-THEFT

Anti-theft Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Anti-theft Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• A11
• A12
• Accessory voltage
• Alarm on signal
• Armed signal
• B10
• B12
• Battery
• C (not used)
• Class 2 serial data
• Control pwr output
• Dash integration module (under right side of dash, above right closeout/ insulator panel)
• Door open
• Door open switch signal
• Driver door latch assembly
• Driver door module (on left door, under door trim)
• Ecm/tcm fuse 10a
• Exterior lights system
• F (not used)
• G200 (behind left kick panel)
• Ground
• Horn relay ctrl
• Horns system
• Hot at all times
• Hot in acc or run
• Hot in run or start
• Ign 1 voltage
• Ignition key
• Intrusion sensor
• Joint connector
• Left rear door latch assembly
• Left rear door module (under door trim panel)
• Left rear fuse block (below left rear seat)
• Nca
• Park lamp relay ctrl
• Pnk
• R31
• R32
• R33
• R35
• Reader/ exciter
• Rear integration module (under package shelf trim panel)
• Right rear door latch assembly
• Right rear door module (on right rear door, under door trim panel)
• Right rear fuse block (below right rear seat)
• Rim fuse 10a
• S20
• S205
• S21
• S22
• S23
• S313
• Sp303 (in passenger compartment, near right rear fuse block)
• Tan
• Theft deterrent control module (at top of steering column)
• Theft fuse 7.5a
• Transponder
• Trunk ajar switch signal
• Trunk dr rel sol relay
• Trunk dr release fuse 10a
• Trunk release relay ctrl
• Underhood fuse block (right front of engine compt)

Anti-theft Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Anti-theft Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (in engine harness, approximately 18 cm from tcm connector) s154
• (not used)
• (rear of left rear shock tower) g402
• 3.2l
• 3.6l
• 5.7l
• A13
• A14
• B10
• Class 2 serial data
• Data link connector (under left side of dash)
• Door open
• Door open sw sig
• E10
• Electronic brake control module (ebcm) (at right front corner of engine compartment)
• Engine control module (ecm) (3.6l (vin 7): front of right valve cover)
• Front passenger door latch assembly
• Front passenger door module (on right front door, under door trim panel)
• Gnd
• Ground
• Hvac control module (behind center of dash, below radio)
• Ign
• Instrument panel cluster (ipc)
• Interior lights system
• Logic
• Powertrain control module
• Radio
• Rear compartment lid release actuator (center of rear compartment lid)
• Right rear fuse block (below right rear seat)
• Security indicator
• Sp200 (in right front of passenger compt, under dash, above steering column)
• Sp300 (in passenger compartment, near left side of driver's seat)
• Trunk ajar switch signal
• Trunk diode

BODY CONTROL MODULES

Dash Integration Module Wiring Diagram for Cadillac CTS 2004

List of elements for Dash Integration Module Wiring Diagram for Cadillac CTS 2004:

• (3.6l: back of right cylinder head) (5.7l: on engine block, near generator) (3.2l: on engine block, near starter) g102
• 5 volt reference
• A10
• A11
• A12
• Accessory
• Accessory voltage
• B10
• B11
• B12
• Backlight lamps control
• Battery
• Cigar relay
• Cigar relay coil voltage
• Class 2 serial data
• Computer data lines system
• Control power output
• Courtesy lamp switch on signal
• Crank
• Dash integration module (under right side of dash, above right closeout/insulator panel)
• Dim/ aldl fuse 10a
• Dimming fuse 10a
• Drl relay ctrl
• Exterior lights system
• Flash to pass switch signal
• Fog lamp relay control
• Front fog lamps switch signal
• G200 (behind the left kick panel)
• Ground
• Ground distribution system
• Hazard switch output
• Hazard switch signal
• Headlamp hi beam relay ctrl
• Headlamp low beam relay ctrl
• Headlamp switch on signal
• Headlamp washer ground
• Headlights system
• Horn relay control
• Horns system
• Hot at all times
• Ignition 1 voltage
• Ignition lock cyl switch
• Ignition switch
• Inst panel lp dimmer sw low ref
• Inst panel lp dimmer switch
• Interior lights system
• Key in ignition switch signal
• Off/lock
• Park lamp relay
• Park lamp relay ctrl
• Park lp sw on signal
• Pnk
• Power distribution system
• R31
• R32
• R33
• R34
• R59
• R62
• Run
• S201
• Shift interlock system
• Sp201
• Tan
• Twilight sentinal delay signal
• Underhood fuse block (right front of engine compt)
• Voltage check fuse 10a
• Warning system
• Washer fluid level signal
• Wiper switch on signal
• Wiper/washer system

Rear Integration Module Wiring Diagram for Cadillac CTS 2004

List of elements for Rear Integration Module Wiring Diagram for Cadillac CTS 2004:

• 5007 (or 5053)
• A/t shift lock ctrl solenoid control
• A10
• A11
• A12
• Anti-lock brakes system
• Anti-theft system
• B10
• B11
• B12
• Battery
• Class 2 serial data
• Computer data lines system
• Courtesy lamp control
• Courtesy lamp ctrl
• Courtesy lamp relay ctrl
• Defogger system
• Driver heated seat high/low signal
• Exterior lights system
• G401 (rear of right rear shock tower)
• Ground
• Hot at all times
• Htd seat ctrl module status signal
• Ignition 1 voltage
• Interior lights system
• Intrusion sensor alarm on signal
• Intrusion sensor armed signal
• Joint connector
• Pass htd seat ctrl module status signal
• Passenger heated seat high/low signal
• Pnk
• Power distribution system
• Power tops system
• Rap relay coil control
• Rear compt lid ajar switch sig
• Rear defog relay ctrl
• Rear integration module (under package shelf trim panel)
• Reverse relay ctrl
• Reverse signal (or winter mode signal)
• Right rear fuse block (below right rear seat)
• Rim fuse 10a
• Rim/ign sw fuse 10a
• S21
• S22
• Seats system
• Shift interlock system
• Sport mode switch signal
• Tan
• Theft deterrent system
• Traction control switch signal
• Transmissions system
• Trunk release relay ctrl
• Trunk, tailgate, fuel doors system
• Vehicle speed signal

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Cadillac CTS 2004

List of elements for Computer Data Lines Wiring Diagram for Cadillac CTS 2004:

• (behind the left kick panel) g200
• (in engine harness, 26 cm from starter motor connector)
• 3.2l
• 3.2l 3.6l
• 3.2l a/t
• 3.6l
• 3.6l a/t
• 5.7l
• A/t
• A11
• A12
• A13
• A14
• Audio amplifier (left side of trunk)
• B11
• B12
• Base
• Class 2 serial data
• Dash integration module (dim) (under right side of dash above right closeout/ insulator panel)
• Data link connector (under left side of dash)
• Digital radio receiver (left side of rear package shelf)
• Dim/aldl fuse 10a
• Driver door module (on left door, under door trim)
• Driver door switch assembly (ddsa)
• Driver's memory seat module (under driver's seat)
• E10
• Electronic brake control module (ebcm) (at right front corner of engine compt)
• Engine control module (ecm) (3.6l: front of right valve cover)
• Except
• F14
• Front passenger door module (on right front door, under door trim panel)
• H speed gmlan data bus +
• H speed gmlan data bus -
• Hot at all times
• Hvac control module (behind center of dash, below radio)
• If equipped
• Inflatable restraint sensing & diagnostic module (under center console)
• Instrument panel cluster (ipc)
• Key word 2000 serial data
• Left headlamp
• Left rear door module (under door trim panel)
• Luxury
• Powertrain control module
• Radio
• Radio antenna module (above headliner, near rear window)
• Rear integration module (rim) (under package shelf trim panel)
• Right headlamp
• Right rear door module (on right rear door, under door trim panel)
• S114
• S119
• S154 (in engine harness, approxi- mately 18 cm from tcm connector)
• S200
• S201
• Sp200 (in right front of passenger compt, under dash, above steering column)
• Sp300 (in passenger comp, near left side of driver's seat)
• Sp303 (in passenger compt, near right rear fuse block)
• Theft deterrent control module (at top of steering column)
• Transmission control module (tcm) (at right front of engine compt)
• Tv antenna module
• U2k/u2l
• U2y/u2x
• Underhood fuse block (right front of engine compt)
• Vehicle communication interface module (vcim) (in rear compt, behind right strut tower)
• W/ automatic headlamps control leveling system

COOLING FAN

Cooling Fan Wiring Diagram for Cadillac CTS 2004

List of elements for Cooling Fan Wiring Diagram for Cadillac CTS 2004:

• (in engine harness under throttle body, 11.5 cm towards the right) (3.6l) s148
• (left rear side of engine) g100
• (near left front strut tower) g101
• (on right body rail, near right headlamp) g104
• (or 470)
• 3.2l
• 3.2l 3.6l
• 5.7l
• After boil coolant pump (on right side of engine block)
• After boil fuse 10a
• After boil relay (3.2l)
• Computer data lines system
• Coolant bypass valve solenoid
• Coolant level sw
• Coolant level switch (in left front corner of coolant surge tank)
• E10
• E11
• Ect sensor signal
• Engine control module (ecm) (3.6l front of right valve cover)
• Engine coolant low level
• Engine coolant temperature (ect) sensor (3.2l rear of intake manifold) (3.6l side of left cylinder head) (5.7l front of left cylinder head)
• Except 5.7l
• Hi fan fuse 30a
• Hi speed fan relay
• High speed fan relay ctrl
• Hot at all times
• Hot in on or start
• Htr vlv/cltch fuse 10a
• Hvac control module (behind center of dash, below radio)
• Left cooling fan (left side of radiator)
• Lo speed fan relay
• Logic
• Low fan fuse 30a
• Low reference
• Low speed fan relay ctrl
• Main relay
• Main relay ctrl
• Message center
• Pnk
• Powertrain control module (pcm)
• R11
• R12
• R13
• R14
• R15
• R16
• R17
• R18
• R19
• R20
• R21
• R22
• R39
• R40
• R41
• R42
• R47
• R48
• R49
• R50
• Radio
• Relay control
• Right cooling fan (right side of radiator)
• Right rear fuse block (below right rear seat)
• S/p fan relay
• S111 (3.2l) (in engine harness, 26 cm from starter motor connector)
• Serial data
• Tan
• Underhood fuse block (right front of engine compartment)

CRUISE CONTROL

3.2L VIN N

3.2L VIN N, Cruise Control Wiring Diagram for Cadillac CTS 2004

List of elements for 3.2L VIN N, Cruise Control Wiring Diagram for Cadillac CTS 2004:

• left rear side of engine) g100
• (right front corner of engine compt) sp102
• 3.2l
• 3.6l
• 3.6l
• 5 volt reference
• Bpp sensor signal
• Brake pedal position sensor (near top of brake pedal)
• C12
• C13
• Class 2 serial data
• Clutch pedal position (cpp) sensor (m/t)
• Computer data lines system
• Cpp switch signal
• Cruise control switch
• Cruise control switch signal
• Cruise indicator
• Electronic brake control module (ebcm) (at right front corner of engine compartment)
• Engine control module (ecm) (front of right valve cover)
• Extended travel brake sw sig
• G104 (on right body rail, near right headlamp)
• Hot at all times
• Hot in run or start
• Htr vlv/ cltch fuse 10a
• Ign 1 relay
• Ignition
• Instrument panel cluster (ipc)
• Logic
• Low reference
• Main relay
• Off
• Pnk
• R/a
• R43
• R44
• R45
• R46
• R48
• R49
• S132
• S207
• Sp102 (right front corner of engine compt)
• Sp200 (in right front of passenger compartment, under dash, above steering column)
• Strg ctls fuse 10a
• Tac motor control-1
• Tac motor control-2
• Tan
• Tcm/ ipc fuse 15a
• Throttle actuator control (tac) motor
• Throttle body assembly
• Throttle position (tp) sensor
• Tos fuse 10a
• Tp sensor 1 signal
• Tp sensor 2 signal
• Turn signal/ multi-function switch
• Underhood fuse block (right front of engine compt)
• Vehicle speed sensor (vss) (m/t) (on right rear of transmission)
• Vehicle speed sensor signal

3.6L VIN 7

3.6L VIN 7, Cruise Control Wiring Diagram for Cadillac CTS 2004

List of elements for 3.6L VIN 7, Cruise Control Wiring Diagram for Cadillac CTS 2004:

• left rear side of engine) g100
• (right front corner of engine compt) sp102
• 3.2l
• 3.6l
• 3.6l
• 5 volt reference
• Bpp sensor signal
• Brake pedal position sensor (near top of brake pedal)
• C12
• C13
• Class 2 serial data
• Clutch pedal position (cpp) sensor (m/t)
• Computer data lines system
• Cpp switch signal
• Cruise control switch
• Cruise control switch signal
• Cruise indicator
• Electronic brake control module (ebcm) (at right front corner of engine compartment)
• Engine control module (ecm) (front of right valve cover)
• Extended travel brake sw sig
• G104 (on right body rail, near right headlamp)
• Hot at all times
• Hot in run or start
• Htr vlv/ cltch fuse 10a
• Ign 1 relay
• Ignition
• Instrument panel cluster (ipc)
• Logic
• Low reference
• Main relay
• Off
• Pnk
• R/a
• R43
• R44
• R45
• R46
• R48
• R49
• S132
• S207
• Sp102 (right front corner of engine compt)
• Sp200 (in right front of passenger compartment, under dash, above steering column)
• Strg ctls fuse 10a
• Tac motor control-1
• Tac motor control-2
• Tan
• Tcm/ ipc fuse 15a
• Throttle actuator control (tac) motor
• Throttle body assembly
• Throttle position (tp) sensor
• Tos fuse 10a
• Tp sensor 1 signal
• Tp sensor 2 signal
• Turn signal/ multi-function switch
• Underhood fuse block (right front of engine compt)
• Vehicle speed sensor (vss) (m/t) (on right rear of transmission)
• Vehicle speed sensor signal

5.7L VIN P

5.7L VIN P, Cruise Control Wiring Diagram for Cadillac CTS 2004

List of elements for 5.7L VIN P, Cruise Control Wiring Diagram for Cadillac CTS 2004:

• (rear of right cylinder head) g142
• 5 volt reference
• 5v ref
• Anti-lock brakes system
• Bpp sensor signal
• Brake pedal position sensor (near top of brake pedal)
• C12
• C13
• C208
• Class 2 serial data
• Clutch pedal position (cpp) sensor
• Coast
• Computer data lines system
• Cpp switch signal
• Cruise control switch fuse 2a
• Cruise indicator
• Cruise switch
• Electronic brake control module (ebcm) (at right front corner of engine compartment)
• Extended travel brake sw sig
• G104 (on right body rail, near right headlamp)
• Ground
• Hot at all times
• Hot in run or start
• Htr vlv/ cltch fuse 10a
• Ign 1 relay
• Ignition
• Ignition 1 voltage
• Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
• Instrument panel cluster (ipc)
• Logic
• Low erf
• Low ref
• Low reference
• On sw sig
• Pnk
• Powertrain control module (pcm)
• R43
• R44
• R45
• R46
• Resume/ accel
• Resume/acc sw sig
• Right steering wheel controls
• S207
• Set
• Set/coast sw sig
• Sp200 (in right front of passenger compartment, under dash, above steering column)
• Steering column fuse block (taped to steering column harness)
• Steering wheel control switch fuse 2a
• Strg ctls fuse 10a
• Tac motor ctrl-1
• Tac motor ctrl-2
• Tcm/ ipc fuse 15a
• Throttle actuator control (tac) module (right front of engine compt)
• Throttle actuator control (tac) motor (right front of engine compt)
• Throttle position (tp) sensor (right side of throttle body)
• Tp sens 1 sig
• Tp sens 2 sig
• Tp sensor 1
• Tp sensor 2
• Underhood fuse block (right front of engine compt)
• Vehicle speed sensor (vss) (on left rear of transmission)
• Vss high signal
• Vss low signal

DEFOGGERS

Defoggers Wiring Diagram for Cadillac CTS 2004

List of elements for Defoggers Wiring Diagram for Cadillac CTS 2004:

• (on right "c" pillar) g303
• A12
• Class 2 serial data
• Computer data lines system
• Driver door module (on left door, under door trim)
• Driver outside rearview mirror
• E10
• Feed
• Front passenger door module (on right front door, under door trim panel)
• Heated mirror element
• Hot at all times
• Hot in run
• Hvac control module (behind center of dash, below radio)
• Logic
• Low reference
• Nca
• Passenger outside rearview mirror
• R10
• Rear defog fuse 40a
• Rear defog relay
• Rear defogger indicator
• Rear defogger switch
• Rear integration module (under package shelf trim panel)
• Rear window defogger (on rear window glass)
• Relay control
• Right rear fuse block (below right rear seat)
• Rtn

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram for Cadillac CTS 2004

List of elements for Electronic Power Steering Wiring Diagram for Cadillac CTS 2004:

• (on right frame rail, near abs module) g110
• A13
• A14
• Abs fuse 10a
• Class 2 serial data
• Computer data lines system
• Electronic brake control module (ebcm) (at right front corner of engine compartment)
• Ground
• High effort control
• Hot in run or start
• Ignition
• Low effort control
• Pnk
• Right rear fuse block (below right rear seat)
• Variable effort steering actuator (on power steering rack assembly)

ENGINE PERFORMANCE

3.2L VIN N

3.2L VIN N, Engine Performance Wiring Diagram (1 of 3) for Cadillac CTS 2004

List of elements for 3.2L VIN N, Engine Performance Wiring Diagram (1 of 3) for Cadillac CTS 2004:

• (in engine harness, 120 cm from ho2s 21)
• (in fuel injector harness, near c112)
• (left rear of intake plenum) intake manifold runner control solenoid
• (near ignition coils)
• +5v ref
• Case ground
• Ckp hi
• Ckp low
• Cmp sig
• Coil 1 ctrl
• Coil 2 ctrl
• Coil 3 ctrl
• Coil 4 ctrl
• Coil 5 ctrl
• Coil 6 ctrl
• Crankshaft position sensor
• Dk red/
• Ect sens
• Elec- tronic ignition module (bank 2)
• Electronic ignition module (bank 1)
• Engine control module (front of right valve cover)
• Evap purge
• Fuel inj 1
• Fuel inj 2
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Fuel injectors
• G100 (near starter motor)
• G107
• Heated oxygen sensor bank 1 sensor 1 (on right exhaust pipe)
• Heated oxygen sensor bank 1 sensor 2 (on right catalytic converter)
• Heated oxygen sensor bank 2 sensor 1 (on left exhaust pipe)
• Heated oxygen sensor bank 2 sensor 2 (on left catalytic converter)
• Ho2s 1,1 htr
• Ho2s 1,1 low
• Ho2s 1,1 sig
• Ho2s 1,2 hi
• Ho2s 1,2 htr
• Ho2s 1,2 lo
• Ho2s 2,1 htr
• Ho2s 2,1 low
• Ho2s 2,1 sig
• Ho2s 2,2 hi
• Ho2s 2,2 lo
• Iat sig
• Inj 3 ctrl
• Intk out 1
• Intk out 2
• Knock sensor (bank 1) (right side of engine)
• Knock sensor (bank 2) (left side of engine)
• Ks1 sig
• Ks2 sig
• Lo ref
• Low ref
• Maf sig
• Mass airflow sensor (right side of air cleaner)
• Nca
• Oil pres sig
• Pnk
• S108
• S111
• Shld ground
• Tac mtr ctrl
• Tan
• Tan/red
• To spark plugs
• Tps sens 1
• Tps sens 2

3.2L VIN N, Engine Performance Wiring Diagram (2 of 3) for Cadillac CTS 2004

List of elements for 3.2L VIN N, Engine Performance Wiring Diagram (2 of 3) for Cadillac CTS 2004:

• (in front of underhood fuse box)
• Camshaft position sensor (left front of engine)
• Canister vent fuse 10a
• Ecm fuse 15a
• Ecm/tcm fuse 10a
• Engine coolant temperature sensor (top rear of intake manifold)
• Engine oil pressure sensor (aboe oil filter)
• Evap canister purge solenoid (right side of engine)
• Even inj/ coil fuse 15a
• Fuel pump relay
• Fuse a 15a
• G100 (near starter motor)
• G104 (near right head- lamp)
• G401 (rear of right shock tower)
• Hot at all times
• Hot in run or start
• Ign 1 relay
• Ign mod/ maf fuse 15a
• Intake manifold tuning valve solenoid (rear side of intake duct)
• Main relay
• Odd inj/ coil fuse 15a
• Pnk
• Post fuse 15a
• Pre 02/ cam fuse 15a
• R36
• R37
• R38
• R40
• R43
• R44
• R45
• R46
• R47
• R48
• R49
• R50
• Right rear fuse block (below right rear seat)
• S132
• Sp102
• Tan
• Tcm/ ipc fuse 15a
• Theft fuse 7.5a
• Throttle position sensor (top right front of engine)
• Tos fuse 10a
• Under- hood fuse block (left front of eng compt)
• Vehicle speed sensor (m/t) (near rear of transmission assembly)

3.2L VIN N, Engine Performance Wiring Diagram (3 of 3) for Cadillac CTS 2004

List of elements for 3.2L VIN N, Engine Performance Wiring Diagram (3 of 3) for Cadillac CTS 2004:

• (engine harn, 160 cm from ecm ground)
• (in rear compt lid harn, 237 cm from c401)
• +5v ref
• 1786 (or 1035)
• 2000 ser dat
• A/c pres
• A/c rly ctrl
• A/c system
• A/t
• Acc
• Acc volt
• Accelerator pedal
• Anti-lock brakes system
• App 2 sig
• App sens1
• Automatic transmission manual shift shaft switch assembly
• Bas rly ctrl
• Battery
• Charging system
• Class 2 data
• Computer data lines system
• Cooling fans system
• Cpp sw sig
• Crank
• Cruise control system
• Data bus
• Data link connector (under left side of dash)
• Del tor sig
• Eng spd sig
• Engine control module (front of right valve cover)
• Engine speed
• Evap canister vent solenoid (above rear differential)
• Evap ctrl
• Ext brk sig
• F lev sig
• Fuel lev sns
• Fuel level sensor
• Fuel pump/ sender assembly
• Fuel tank pressure sensor (in fuel tank)
• G100 (near starter motor)
• G401 (rear of right shock tower)
• Gen on sig
• Gen signal
• Gmlan data
• Hot at all times
• Ign 1
• Ign 1 volt
• Ign voltage
• Ignition switch
• Instrument panel cluster
• Lan bus +
• Lan bus -
• Logic
• Low red
• Low ref
• M/t
• Main rly ctrl
• Malfunction indicator lamp
• Mil ctrl
• Off/ lock
• P/n sig
• Pnk
• Position sensor (above accelerator pedal)
• Req torq
• Res/accel
• Rly coil ctrl
• Rly ctrl
• Run
• S114
• S400
• Secondary fuel sender assembly
• Ser data
• Sound system
• Sp102 (in front of underhood fuse box)
• Start
• Starting system
• Tan
• Tnk pres sig
• Trac ctrl
• Transmission control module (right front side of engine compt)
• Vss
• Vss signal

3.6L VIN 7

3.6L VIN 7, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS 2004

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS 2004:

• (engine harn, 20 cm from c1 conn of pcm)
• (inj harn, 10 cm from c121)
• (left rear of intake plenum) intake manifold runner control solenoid
• +5v
• +5v ref
• Baro sig
• Charging system
• Ckp hi
• Ckp sens lo
• Cmp sig
• Cmp sol ctrl
• Crankshaft position sensor
• Drain
• Ect sig
• Engine control module (front of right valve cover)
• Engine oil level/temperature sensor (in oil pan)
• Engine oil pressure sensor (in oil filter housing)
• Evap sol ctrl
• Fuel injectors
• G133 (right front of engine)
• Gen fdc sig
• Gen to sig
• Heated oxygen sensor bank 1 sensor 1 (on right exhaust pipe)
• Heated oxygen sensor bank 1 sensor 2 (on right catalytic converter)
• Heated oxygen sensor bank 2 sensor 1 (on left exhaust pipe)
• Heated oxygen sensor bank 2 sensor 2 (on left catalytic converter)
• Ho2s hi sig
• Ho2s lo ctrl
• Ho2s lo sig
• Ho2s pmp ct
• Ic 1 sig
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 sig
• Ic 5 ctrl
• Ic 6 ctrl
• Imrc sol ctrl
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Inj 5 ctrl
• Inj 6 ctrl
• Knock sensor (bank 1) (right side of engine)
• Knock sensor (bank 2) (left side of engine)
• Ks 1 sig
• Ks 2 sig
• Low ref
• Nca
• Oil lev sig
• Oil pres sig
• Oil tmp sig
• Pnk
• S140
• Tac mtr ctrl
• Tan
• Tan a
• Tp sig
• Tp2 sig

3.6L VIN 7, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS 2004

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS 2004:

• (engine harn 24.5 cm from ect sensor)
• (engine harn, 15 cm from coil 1)
• (engine harn, 15 cm from coil 5)
• (left rear of eng)
• Canister vent fuse 10a
• Ecm fuse 15a
• Ecm/tcm fuse 10a
• Even inj/ coil fuse 15a
• Fuel pump relay
• Fuse a 15a
• G104 (near right head- lamp)
• G130 (rear of right cyl head)
• G131
• G401 (rear of right shock tower)
• Hot at all times
• Hot in run or start
• Ign 1 relay
• Ign mod/ maf fuse 15a
• Ignition coil 1 (top right of engine)
• Ignition coil 2 (top left of engine)
• Ignition coil 3 (top right of engine)
• Ignition coil 4 (top left of engine)
• Ignition coil 5 (top right of engine)
• Ignition coil 6 (top left of engine)
• Main relay
• Nca
• Odd inj/ coil fuse 15a
• Pnk
• Post fuse 15a
• Pre 02/ cam fuse 15a
• R36
• R37
• R38
• R40
• R43
• R44
• R45
• R46
• R47
• R48
• R49
• R50
• Right rear fuse block (below right rear seat)
• S142
• S144
• S145
• S146
• S149
• S150
• Spark plug
• Tan
• Tcm/ ipc fuse 15a
• Theft fuse 7.5a
• Under- hood fuse block (left front of eng compt)

3.6L VIN 7, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS 2004

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS 2004:

• (front of left cyl head) camshaft position actuator solenoid (exhaust bank 2)
• (front of left cyl head) camshaft position actuator solenoid (intake bank 2)
• (front of left cyl head) camshaft position sensor (exhaust bank 1)
• (front of left cyl head) camshaft position sensor (intake bank 2)
• (front of right cyl head) camshaft position actuator solenoid (exhaust bank 1)
• (front of right cyl head) camshaft position actuator solenoid (intake bank 1)
• (front of right cyl head) camshaft position sensor (exhaust bank 1)
• (front of right cyl head) camshaft position sensor (intake bank 1)
• +5v
• A/c refrigerant pressure sensor (near left front strut tower)
• Barometric pressure sensor (top rear of engine)
• Engine coolant temperature sensor (top rear of intake manifold)
• Evap canister purge solenoid (right side of engine)
• Low ref
• Mass airflow sensor (right side of air cleaner)
• Pnk
• S148
• Signal
• Tan
• Throttle position sensor (top right front of engine)

3.6L VIN 7, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS 2004

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS 2004:

• (front of right cyl head)
• (fuel tank harn, 40 cm from c420)
• +5v ref
• +5v ref a
• +5v ref c
• A/c ref pres
• A/c system
• Acc
• Acc volt
• Accelerator pedal
• Anti-lock brake system
• App sens 2 sig
• App sens sig
• Automatic transmission manual shift shaft switch assembly
• Battery +
• Brk sw sig
• Cc sw sig
• Class 2 data
• Clu rly ctrl
• Computer data lines system
• Cooling fans system
• Crank volt
• Cruise control system
• Delv torque sig
• Eng spd sig
• Engine control module (front of right valve cover)
• Engine speed
• Evap canister vent solenoid (above rear differential)
• Evap sol ctrl
• Fan rly ctrl
• Fuel lev sens
• Fuel lev sig
• Fuel level sensor
• Fuel pump/ sender assembly
• Fuel tank pressure sensor (in fuel tank)
• G132
• G401 (rear of right shock tower)
• Gmlan bus
• Ho2s hi sig
• Ho2s lo ctrl
• Ho2s lo sig
• Hot at all times
• Iat sig
• Ign 1 volt
• Ignition switch
• Instrument panel cluster
• Lan bus +
• Lan bus -
• Logic
• Low ref
• Maf sig
• Main rly ctrl
• Malfunction indicator lamp
• Mil ctrl
• Off/ lock
• P/n sig
• Pnk
• Position sensor (above accelerator pedal)
• Req torq sig
• Rly coil ctrl
• Rly coil supp
• Rly ctrl
• Run
• S156
• S400
• Secondary fuel sender assembly
• Ser data bus
• Sound system
• Sp102 (in front of underhood fuse box)
• Start
• Starting system
• Tan
• Tank pres sig
• Tc data sig
• Transmission control module (right front side of engine compt)
• Vss

5.7L VIN P

5.7L VIN P, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS 2004

List of elements for 5.7L VIN P, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS 2004:

• (center of eng, below intake manifold)
• (engine harn, 15.5 cm from c101)
• (engine harn, 20 cm from underhood fuse block breakout)
• (rear of left cyl head)
• +5v ref a
• +5v ref b
• 5v ref
• Acc voltage
• Anti-lock brake system
• Ckp sen b+
• Ckp sen sig
• Cmp sen sig
• Computer data lines system
• Cooling fans system
• Cpp sw sig
• Ect sen sig
• Eng cool fan rly 1 ctrl
• Engine coolant temperature sensor (left side of of eng, below generator)
• Extended travel brake sw
• Fuel inj n04 ctrl
• Fuel inj n06
• Fuel inj n07 ctrl
• Fuel inj no1
• Fuel inj no2 ctrl
• Fuel inj no3 ctrl
• Fuel inj no5 ctrl
• Fuel inj no8 ctrl
• Fuel injectors
• G140
• G141 (rear of left cylinder head)
• G142 (rear of right cylinder head)
• Ground
• Heated oxygen sensor, bank 1 sensor 1 (forward of catalytic converter)
• Heated oxygen sensor, bank 1 sensor 2 (rear of catalytic converter)
• Heated oxygen sensor, bank 2 sensor 1 (forward of catalytic converter)
• Heated oxygen sensor, bank 2 sensor 2 (rear of catalytic converter)
• Ho2s sig hi bank 1 sen1
• Ho2s sig hi bank1 sen1
• Ho2s sig hi bank2 sen1
• Ho2s sig hi bank2 sen2
• Ho2s sig lo bank1 sen1
• Ho2s sig lo bank1 sen2
• Ho2s sig lo bank2 sen1
• Ho2s sig lo bank2 sen2
• Knock sen sig 1
• Knock sen sig 2
• Knock sensor
• Low oil level sw sig
• Low ref
• Nca
• Pcm gnd
• Pnk
• Powertrain control module (behind right front fender)
• Request torque sig
• Rly coil ctrl
• S160
• S161
• S162
• S169
• S170
• Serial data
• Skip shift sol ctrl
• Starting system
• Tan
• Tan a
• Uart serial data

5.7L VIN P, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS 2004

List of elements for 5.7L VIN P, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS 2004:

• (rear compt lid harn, 237 cm from c401)
• (rear of right shock tower) g401
• Canister vent fuse 10a
• Ecm/tcm fuse 10a
• Evaporative emission canister purge solenoid valve (top left side of eng, on intake manifold)
• Even inj/ coil fuse 15a
• Fuel level sensor
• Fuel pump motor fuse 20a r37
• Fuel pump relay
• Fuel pump/ sender assembly
• G104 (near right head- lamp)
• G401 (rear of right shock tower)
• Hot at all times
• Hot in run or start
• Ign 1 relay
• Ign mod/ maf fuse 15a
• Main relay
• Manifold absolute pressure sensor (on top rear of intake manifold)
• Odd inj/ coil fuse 15a
• Pnk
• Post fuse 15a
• Pre 02/ cam fuse 15a
• R36
• R38
• R40
• R43
• R44
• R45
• R46
• R47
• R48
• R49
• R50
• Right rear fuse block (below right rear seat)
• S400
• Secondary fuel sender assembly
• Sp102 (right front corner of engine compt)
• Tan
• Tcm/ ipc fuse 15a
• Theft fuse 7.5a
• Tos fuse 10a
• Transmission fluid temperature sensor (in transmission)
• Under- hood fuse block (left front of eng compt)

5.7L VIN P, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS 2004

List of elements for 5.7L VIN P, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS 2004:

• (attached to pcm below battery) throttle actuator control module
• (ign coil module, on left valve cover)
• (lower right side of eng) crankshaft position sensor
• (on left side of throttle body) throttle actuator control motor
• (on left side of transmission) reverse lockout solenoid
• (on right side of throttle body) throttle position sensor
• (on top of accelerator pedal, part of mounting bracket) accelerator pedal position sensor
• (rear of right cylinder head)
• (top center rear of eng) camshaft position sensor
• (under vehicle, on left side of transmission) skip shift solenoid
• +5v ref
• 5v ref
• A/c refrigerant pressure sensor (near left front strut tower)
• Anti-lock brake system
• App no1 sig
• App no2 sig
• App no3 sig
• Bas rly supp
• Cruise control system
• Engine oil level/temper- ature sensor (in oil pan)
• Engine oil pressure sensor (on top center rear of eng)
• G141 (rear of left cylinder head)
• G142
• G142 (rear of right cylinder head)
• Gnd
• Ign
• Ign 1
• Ignition coil/module 1 (top of cylinder)
• Ignition coil/module 3 (top of cylinder)
• Ignition coil/module 5 (top of cylinder)
• Ignition coil/module 7 (top of cylinder)
• Low ref
• On/off sig
• Plug spark
• Pnk
• Red
• Red c ign ctrl
• Ref lo
• Res/acc sig
• S163
• S165
• S167
• Set/coast sig
• Spark plug
• Tac ctrl no1
• Tac ctrl no2
• Tan
• Tan a
• Tps no1 sig
• Tps no2 sig
• Uart ser data

5.7L VIN P, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS 2004

List of elements for 5.7L VIN P, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS 2004:

• (ign coil module, on left valve cover)
• (inside right rear wheelhouse panel) evaporative emission canister vent solenoid valve
• (on air intake assembly) mass air flow sensor
• (on right of differential) vehicle speed sensor
• +12v ref
• A gnd
• A tan
• A/c clutch rly ctrl
• A/c refrig press sen sig
• A/c system
• Acc
• Alt term l
• Anti-lock brake system
• B ref lo
• Charging system
• Cooling fans system
• Crank voltage
• D ign
• D pnk
• Eng oil press sen sig
• Eng speed (tach) out sig
• Engine speed
• Evap can purge sol ctrl
• Evap can vent valve ctrl
• Fuel level sen sig
• Fuel levl sen sig (second)
• Fuel pump rly ctrl
• Fuel tank press sen sig
• Fuel tank pressure sensor (in right fuel tank)
• G140 (rear of left cyl head)
• G142 (rear of right cylinder head)
• Gen field duty sig
• Ground
• Hi spd fan rly ctrl
• Ho2s htr low ctrl
• Hot at all times
• Iat sen sig
• Ign ctrl 1
• Ign ctrl 2
• Ign ctrl 3
• Ign ctrl 4
• Ign ctrl 5
• Ign ctrl 6
• Ign ctrl 7
• Ign ctrl 8
• Ignition coil/ module 2 (top of cylinder)
• Ignition coil/ module 4 (top of cylinder)
• Ignition coil/ module 6 (top of cylinder)
• Ignition coil/ module 8 (top of cylinder)
• Ignition switch
• Instrument panel cluster
• Logic
• Low ref
• Maf sen sig
• Main rly ctrl
• Malfunction indicator lamp
• Map sen sig
• Mil ctrl
• Off/ lock
• Oil temp
• Plug spark
• Pnk
• Powertrain control module (behind right front fender)
• Red
• Reverse inhibit sol ctrl
• Run
• S164
• S166
• S168
• Sound system
• Spark plug
• Ss ind
• Ss lamp ctrl
• Start
• Starting system
• Tan
• Tft sen sig
• Torque delivered
• Vehicle speed out
• Vss
• Vss ref lo
• Vss sig hi

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Cadillac CTS 2004

List of elements for Back-up Lamps Wiring Diagram for Cadillac CTS 2004:

• (left rear side of engine) (3.2l) g100
• (left rear side of engine) g100
• (rear of left cylinder head) (5.7l) g142
• (rear of left rear shock tower) g402
• 3.2l
• 3.6l
• A12
• Automatic transmission
• Backup lamp switch (m/t)
• Backup sw sig
• Bus +
• Bus -
• Computer data lines system
• G132 (front of right cylinder head)
• Hot at all times
• Inside rearview mirror (isrvm)
• Left backup lamp
• Left rear fuse block (below left rear seat)
• License lamp assembly
• R36
• R37
• R38
• R40
• Rear integration module (under package shelf trim panel)
• Relay control
• Rev lamp relay
• Reverse lamp fuse 10a
• Right backup lamp
• S155
• S401
• Serial data
• Sig a
• Sig b
• Sig c
• Transmission control module (tcm) (a/t) (at right front of engine compt)
• Transmission internal mode switch (ims)

Exterior Lamps Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• (40 cm from c421) s402
• (behind the left kick panel) g200
• (not used)
• 5v ref
• A11
• A12
• Auto
• Bas rly
• Battery
• Bpp sig
• Brake pedal position (bpp) sensor (near top of brake pedal)
• C12
• C13
• Center high mounted stop lamp (chmsl)
• Class 2 serial data
• Computer data lines system
• Dash integration module (under right side of dash, above right closeout/ insulator panel)
• Dimming fuse 10a
• Drl low control
• Drl low ctrl
• Electronic brake control module (ebcm) (at right front corner of engine compartment)
• Flasher fuse 15a
• G104 (on right body rail, near right headlamp)
• G200 (behind the left kick panel)
• G402 (rear of left rear shock tower)
• Ground
• Hazard request sig
• Hazard sw sig
• Hazard sw signal
• Hazard switch
• Head
• Headlamps on sig
• Hot at all times
• Hot in run or start
• Ign 1 relay
• Interior lights system
• Left front turn signal lamp
• Left front turn signal/ fog lamp assembly
• Left license lamp
• Left turn signal voltage
• Left turn sw sig
• License lamp assembly
• Low ref
• Off
• Park
• Park lamp relay
• Park lamp rly ctrl
• Park lamp sw on sig
• Pnk
• R31
• R32
• R33
• R34
• R43
• R44
• R45
• R46
• Right front turn signal lamp
• Right front turn signal/ fog lamp assembly
• Right license lamp
• Right turn signal voltage
• Right turn sw sig
• S200
• S207
• S208
• S401
• Sp102 (right front corner of engine compartment)
• Sp200 (in right front of passenger compt, under dash, above steering column)
• Strg ctls fuse 10a
• To underhood fuse block (lt park fuse, 10a) (diagram 2 of 2)
• Turn signal/ multi-function switch
• Turn signal/hazard flasher module
• Underhood fuse block (right front of engine compt)

Exterior Lamps Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (behind the left kick panel)
• (below left rear seat) left rear fuse block
• (in body harness, 30 cm from c410) s415
• (in body harness, 34 cm from c411) s416
• (on right body rail, near right headlamp) g104
• (rear of right rear shock tower) g401
• (right front of engine compt) underhood fuse block
• Bas fuse 15a
• Bas relay
• Class 2 (dim)
• Class 2 serial data
• Computer data lines system
• E trailering (not used)
• From underhood fuse block (dimming fuse, 10a) (diagram 1 of 2)
• G200
• G402 (rear of left rear shock tower)
• Ground
• Hot at all times
• Instrument panel cluster (ipc)
• Joint connector
• Left front marker lamp
• Left front park lamp
• Left headlamp (w/o automatic headlamps control leveling system)
• Left rear marker lamp
• Left rear turn signal lamp
• Left tail lamp
• Left tail lamp assembly
• Left tail/ stop lamp
• Left turn indicator
• Lights on ind
• Logic
• Lt park fuse 10a
• Message center
• Message request
• Radio
• Right front marker lamp
• Right front park lamp
• Right headlamp (w/o automatic headlamps control leveling system)
• Right rear marker lamp
• Right rear turn signal lamp
• Right tail lamp
• Right tail lamp assembly
• Right tail/ stop lamp
• Right turn indicator
• Rt park fuse 10a
• S116 (in forward lamp harness, 40 cm from right cooling fan connector)
• S201
• S24
• S25
• S26
• S27
• S405
• S406
• Turn signal on theft attempted
• W/ hid
• W/o hid

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Cadillac CTS 2004

List of elements for Ground Distribution Wiring Diagram (1 of 5) for Cadillac CTS 2004:

• (3.2l left rear of engine) g107
• (3.2l, 3.6l): right side of engine compartment) (5.7l): on inner fender wall, near battery) g105
• (3.6l: back of right cylinder head) (5.7l: on engine block, near generator) (3.2l: on engine block, near starter) g102
• (in cellular antenna coax cable, about 31 cm from g304) s309
• (on right
• (on right frame rail, near abs module) g110
• (on the rear package shelf, left of subwoofer) g304
• (under center console) g306
• A/c compressor clutch
• A/t
• After boil coolant pump
• Automatic transmission
• B12
• Back-up switch
• Battery
• Brake fluid level switch
• Cellular antenna
• Coolant bypass valve solenoid
• Coolant level switch
• Dash integration module (dim)
• Electronic brake control module (ebcm)
• Engine control module (ecm)
• G100 (3.2l: left rear side of engine)
• G101 (near left front strut tower)
• Headlamp washer fluid pump
• If equipped
• Ignition coil bank 1
• Ignition coil bank 2
• Inflatable restraint sensing & diagnostic module (sdm)
• Left heated washer nozzle
• M/t
• Nca
• Rear window defogger
• Right heated washer nozzle
• Transmission control module (tcm)
• Vehicle communication interface module (vcim)
• Vehicle speed sensor (vss)
• W/ high pressure headlamp washer
• W/o high pressure headlamp washer
• Washer fluid level switch
• Windshield washer fluid pump
• Windshield wiper/ washer module
• ``c" pillar) g303

Ground Distribution Wiring Diagram (2 of 5) for Cadillac CTS 2004

List of elements for Ground Distribution Wiring Diagram (2 of 5) for Cadillac CTS 2004:

• (right front of engine compartment) underhood fuse block
• (w/ hid) left headlamp
• (w/ hid) right headlamp
• A/t
• Accessory relay
• Auxiliary cooling fan
• Auxiliary power outlet
• B12
• Blower motor control processor
• Cigar lighter
• Electronic prndl
• From c312)
• Front headlamp leveling sensor
• Front passenger door module (fpdm)
• G104 (on right body rail, near right headlamp)
• G201 (behind right kick panel)
• Hood ajar switch
• Horn assembly
• Hvac control module
• Ign 1 relay
• Left cooling fan
• Left front fog lamp
• Left front marker lamp
• Left front turn signal lamp
• Left front turn signal/ fog lamp assembly
• Left headlamp
• M/t
• R16
• R35
• R46
• Right front fog lamp
• Right front marker lamp
• Right front turn signal lamp
• Right front turn signal/ fog lamp assembly
• Right headlamp
• Right rear door module (rrdm)
• S/p fan relay
• S202 (in the i/p harness, 48 cm from hazard switch connector)
• Trailer provisions
• W/ automatic headlamps control leveling system
• W/ hid
• W/o automatic headlamps control leveling system
• W/o hid

Ground Distribution Wiring Diagram (3 of 5) for Cadillac CTS 2004

List of elements for Ground Distribution Wiring Diagram (3 of 5) for Cadillac CTS 2004:

• (w/ 8-way adjuster power passenger seat) passenger seat adjuster switch
• (w/ front heater seat) front passenger heated seat module
• B12
• Dash integration module (dim)
• Data link connector (dlc)
• Driver door module (ddm)
• Driver heated seat module
• Driver seat adjuster switch
• Front passenger heated seat module
• G200 (behind left kick panel)
• G307 (on floor, left of driver's seat)
• Hazard switch
• Ignition key alarm switch
• Inflatable restraint steering wheel module coil
• Instrument panel cluster (ipc)
• Left rear door module (lrdm)
• Left steering wheel controls
• Memory seat module (msm)
• Passenger lumbar adjuster switch
• Passenger seat adjuster switch
• Right steering wheel controls
• S200 (in the i/p harness, 11.5 cm from sp200)
• S201 (in the i/p harness, 54 cm from hazard switch connector)
• S205 (in steering column harness, 12.7 cm from c202)
• S208 (in steering column harness, 12.7 cm from c202)
• S305 (in body harness, 18 cm from left rear fuse block)
• S350 (in driver seat harness, 8 cm from msm connector)
• Theft deterrent control module
• Traction control switch
• Turn signal/ hazard flasher module
• Turn signal/ multi-function switch
• W/ 8-way adjuster power passenger seat
• W/ 8-way adjuster power passenger seat, front heater seat
• W/ front heater seat
• W/ memory seat
• W/ power lumbar control seat
• W/o memory seat
• W/o power lumbar control seat

Ground Distribution Wiring Diagram (4 of 5) for Cadillac CTS 2004

List of elements for Ground Distribution Wiring Diagram (4 of 5) for Cadillac CTS 2004:

• (below right rear seat) right rear fuse block
• (if equipped)
• (if equipped) digital radio receiver
• (w/ navigation) traffic information receiver
• (w/ navigation) tv antenna module
• Audio amplifier
• B11
• Bas relay
• Center high mounted stop lamp (chmsl)
• Coil
• Courtesy lamps
• Driver sunshade
• Fuel pump & sender assembly
• Fuel pump relay
• G401 (rear of right rear shock tower)
• G402 (rear of left rear shock tower)
• Ign 1 relay
• Ign 3 relay
• Inside rearview mirror (isrvm)
• Left backup lamp
• Left license lamp
• Left rear fog lamp
• Left rear fuse block (below left rear seat)
• Left rear marker lamp
• Left rear tail lamp
• Left rear tail/ stop lamp
• Left rear turn signal lamp
• Left tail lamp assembly
• Left vanity lamps
• License lamp assembly
• Nca
• Overhead console
• Passenger sunshade
• R21
• R25
• R36
• Radio
• Rear compartment lid release actuator
• Rear headlamp leveling sensor
• Rear integration module (rim)
• Right backup lamp
• Right license lamp
• Right rear fog lamp
• Right rear marker lamp
• Right rear tail lamp
• Right rear tail/stop lamp
• Right rear turn signal lamp
• Right tail lamp assembly
• Right vanity lamps
• S401 (in license lamp harness, 40 cm from c421)
• S405 (in left tail lamp harness, 12.7 cm from c410)
• S406 (in right tail lamp harness, 12.7 cm from c411)
• Sunroof control switch
• Sunroof module
• Sunshade)
• Theft deterrent alarm
• Vehicle communication interface module (vcim)
• W/ electric sliding sun roof glass
• W/o electric sliding sun roof glass

Ground Distribution Wiring Diagram (5 of 5) for Cadillac CTS 2004

List of elements for Ground Distribution Wiring Diagram (5 of 5) for Cadillac CTS 2004:

• A/c compressor clutch
• Automatic transmission
• Backup lamp switch
• Engine control module (ecm)
• Engine oil level/ temperature sensor
• G130 (3.6l) (rear of right cylinder head)
• G131 (3.6l) (left rear of engine)
• G132 (3.6l) (front of right cylinder head)
• G133 (3.6l) (right front of engine)
• G140 (5.7l) (rear of left cylinder head)
• G141 (5.7l) (rear of left cylinder head)
• G142 (5.7l) (rear of right cylinder head)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil/ module 1
• Ignition coil/ module 2
• Ignition coil/ module 3
• Ignition coil/ module 4
• Ignition coil/ module 5
• Ignition coil/ module 6
• Ignition coil/ module 7
• Ignition coil/ module 8
• Mass air flow (maf) sensor
• Nca
• Powertraiin control module (pcm)
• Powertrain control module (pcm)
• S143 (in engine harness, 15 cm from g130)
• S144 (in engine harness, 20 cm from g130)
• S149 (in engine harness, 15 cm from coil 4)
• S150 (in engine harness, 15 cm from coil 4)
• S155 (in engine harness, approximately 17.5 cm from c101)
• S160 (in engine harness, approximately 8 cm from ect connector)
• S167 (in ignition coil/module harness, on left valve cover, 5 cm from c131)
• S168 (in ignition coil/module harness, on right valve cover, 5 cm from c132)
• Throttle actuator control (tac) module
• Transmission control module (tcm)

HEADLIGHTS

Headlights Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Headlights Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• (behind the left kick panel) g200
• (in right front of passenger compt, under dash, above steering column) sp200
• (in steering wheel control harness, 15.2 cm from c208) (m/t) s210
• 6 spd m/t
• A11
• A12
• Ambient light sens sig
• Auto
• B c2
• Class 2 (dim)
• Class 2 serial data
• Coil sply volt ctrl
• Computer data lines system
• Dash integration module (under right side of dash, above right closeout/insulator panel)
• E10
• F11
• F12
• F13
• F15
• Flash to pass signal
• Flash to pass switch signal
• Fog lamp fuse 15a
• Fog lamp relay
• Fog lamp rly ctrl
• Front fog lamp ind
• Front fog lamp switch
• Ft fog lamp sw sig
• G104 (on right body rail, near right headlamp)
• Head
• Headlamp on signal
• Headlamp relay control
• Hi beam rly ctrl
• High beam ind
• Hot at all times
• Hot in run or start
• Hvac control module (behind center of dash, below radio)
• Instrument panel cluster (ipc)
• J c4
• K c1
• Left front fog lamp
• Left front turn signal/ fog lamp assembly
• Lo beam rly control
• Logic
• Low
• Low reference
• Lt sunload sens sig
• M/t
• Nca
• Off
• Others
• Park
• Park lamp sw on sig
• Right front fog lamp
• Right front turn signal/ fog lamp assembly
• Rt sunload sens sig
• S201
• S208
• Sentinel display
• Sunload sensor (top center of i/p, on defrost grill)
• Turn signal/ multifunction switch
• Underhood fuse block (right front of engine compartment)

Headlights Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Headlights Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (on right body rail, near right headlamp) g104
• Hi beam relay
• High beam
• Hot at all times
• Left headlamp
• Low beam
• Low beam/hid relay
• Lt hi beam fuse 10a
• Lt low beam fuse 20a
• Nca
• R23
• R24
• R25
• R26
• R27
• R28
• R29
• R30
• Right headlamp
• Rt hi beam fuse 10a
• Rt low beam fuse 20a
• Underhood fuse block (right front of engine compartment)
• W/ high intensity discharge headlamps
• W/o high intensity discharge headlamps

HORN

Horn Wiring Diagram for Cadillac CTS 2004

List of elements for Horn Wiring Diagram for Cadillac CTS 2004:

• (on right body rail, near right headlamp) g104
• C202
• C208
• Dash integration module (under right side of dash, above right closeout/insulator panel)
• Early production
• Fuse block (steering column) (taped to steering column harness)
• High note horn
• Horn assembly
• Horn fuse 15a
• Horn relay
• Horn relay ctrl
• Horn switch
• Horn switch fuse 2a
• Hot at all times
• Inflatable restraint steering wheel module (center of steering wheel)
• Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
• Late production
• Low note horn
• R10
• R11
• R12
• R13
• Tan
• Underhood fuse block (right front of engine compartment)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• (5.7l) left driver information center (dic)
• (not used)
• 5.7l
• Abs indicator
• Anti-lock brakes system
• Backlighting
• Backlighting ctrl
• Battery (+)
• Brake fluid level switch (on brake fluid reservoir)
• Break indicator
• Charge indicator
• Class 2
• Class 2 (dim)
• Class 2 (ebcm)
• Class 2 (ecm)
• Class 2 (rim)
• Class 2 (sdm)
• Computer data lines system
• Cruise indicator
• Ecm/tcm fuse 10a
• Elec prndl fuse 10a
• Electronic prndl
• Eng speed sig
• Engine controls system
• Engine coolant temperature indicator
• Exterior lights system
• Fasten safety belt indicator
• Front fog lamps indicator
• Fuel level
• G101 (near left front strut tower)
• G200 (behind the left kick panel)
• G201 (behind right kick panel)
• Gnd
• Ground
• Ground ground steering wheel ctrl sig serial data
• High beam indicator
• Hot at all times
• Hot in acc or run
• Hot in run or start
• Ignition 1 voltage
• Instrument panel cluster (ipc)
• Led dimming sig
• Left turn indicator
• Level sens sig
• Lights on indicator
• Logic
• Low engine oil pressure ind
• Low tire pressure indicator
• Malfunction ind lamp (mil)
• Oil temp sens sig
• Park brake sw sig
• Park brake switch (on park brake assembly)
• Pnk
• Rear fog lamps indicator
• Right driver information center (dic) (5.7l)
• Right turn indicator
• S201
• Security indicator
• Serial data
• Sir indicator
• Skip shift ind
• Speedometer
• Speedometer control
• Sport mode indicator
• Tachometer
• Tachometer control
• Tcm/ipc fuse 15a
• Temperature
• Traction control off indicator
• Transmission range sw sig a
• Transmission range sw sig b
• Transmission range sw sig c
• Transmission range sw sig p
• Transmissions system
• Trip reset sw sig
• Trip reset switch
• Trip/ odometer
• Trip/odometer ctrl
• Underhood fuse block (right front of engine compt)
• Vehicle speed sig
• Voltage
• Wait to start indicator (not used)
• Winter mode indicator

Instrument Cluster Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (in engine harness, 20 cm from pcm) s140
• (in fuel tank harness, 40 cm from c420)
• (left side of fuel tank)
• 3.2l
• 3.6l
• 5 volt reference
• 5.7l
• Back
• C12
• Clear dic sig
• Clr
• Computer data lines system
• Dic back sig
• Engine control module (ecm) (front of right valve cover)
• Engine controls system
• Engine oil level/ temperature sensor (3.6l) (in oil pan)
• Engine oil level/ temperature sensor (5.7l)
• Engine oil pressure (eop) sensor (3.2l) (on front right side of engine)
• Engine oil pressure (eop) sensor (3.6l) (in oil filter housing)
• Engine oil pressure (eop) sensor (5.7l)
• Engine speed sig
• Except 5.7l
• Fuel level sens sig
• Fuel level sensor
• Fuel pump & sensor assembly (in fuel tank)
• G142 (rear of right cylinder head)
• Ground
• Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
• Info
• Information dn sw sig
• Information up sw sig
• Left steering wheel controls
• Logic
• Low reference
• Message center
• Message request
• Oil level sw sig
• Oil pressure sens sig
• Oil pressure sw sig
• Oil temp sens sig
• Powertrain control module (pcm) (5.7l)
• Radio
• S148 (in engine harness under throttle body, 11.5 cm towards the right)
• S156 (approximately 24 cm from ebcm connector)
• S400
• Scroll dic sig
• Secondary fuel sender assembly
• Serial data
• Steering wheel control assembly
• Switch 1
• Switch 2
• Switch 3
• Switch 4
• Tan
• Tune/sel
• U2v, u2x, u2y
• Vehicle speed sig
• Vehicle speed signal

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• (under door trim panel)
• 5v reference
• A11
• A12
• B10
• C2 g
• Class 2 serial data
• Computer data lines system
• Courtesy lamp switch
• Courtesy lps on signal
• Dash integration module (under right side of dash, above right closeout/ insulator panel)
• Dim/ aldl fuse 10a
• Dimmer sw low reference
• Driver door latch assembly
• Driver door module (on left door, under door trim)
• Driver door open sw sig
• Front passenger door latch assembly
• Front passenger door module (on right front door, under door trim panel)
• Front passenger door sw sig
• G402 (rear of left rear shock tower)
• Ground
• Hot at all times
• I/p lamps dimmer switch
• Instrument illumination circuit
• Left courtesy/reading lamp
• Left rear door latch assembly
• Left rear door module
• Left rear door open sw sig
• Overhead console
• Right courtesy/reading lamp
• Right rear door latch assembly
• Right rear door module (on right rear door, under door trim panel)
• Right rear door open sw sig
• S314
• Tan
• Underhood fuse block (right front of engine compartment)

Courtesy Lamps Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (center of rear compartment lid) rear compartment lid release actuator
• (in headliner harness, 39.5 cm from c305) s312
• (in headliner harness, 69.5 cm from c305) s319
• A10
• A12
• B10
• B12
• Class 2 serial data
• Computer data lines system
• Courtesy lamp ctrl
• Courtesy lp ctrl
• Courtesy lp relay ctrl
• Courtesy lp voltage
• Driver sunshade
• Driver vanity lamps
• Fd1
• Fd2
• G402 (rear of left rear shock tower)
• Hot at all times
• Int lamp relay
• Interior lamp fuse 10a
• Joint connector
• Left footwell courtesy lamp
• Left front door courtesy lamp
• Lid ajar sw signal
• Nca
• Passenger sunshade
• Passenger vanity lamps
• R16
• R17
• R18
• R20
• Rear compartment courtesy lamp
• Rear dome lamp
• Rear integration module (under package shelf trim panel)
• Right footwell courtesy lamp
• Right front door courtesy lamp
• Right rear fuse block (below right rear seat)
• S10
• S11
• S314
• Trunk diode

Instrument Illumination Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• (in the i/p harness, 47 cm from hazard switch connector) s203
• 5 volt reference
• A11
• A12
• Auto head
• B12
• Backlight lamps ctrl
• Backlights lamp ctrl
• Battery
• C2 b3
• Class 2 serial data
• Computer data lines system
• Control power output
• Dash integration module (under right side of dash, above right closeout/insulator panel)
• Dim/ aldl fuse 10a
• Dimmer switch signal
• Dimming fuse 10a
• Driver door lock switch
• Driver door module (on left door, under door trim)
• Driver door switch assembly (ddsa)
• Driver dr mod fuse 10a
• Electronic prndl (a/t)
• G200 (behind the left kick panel)
• G201 (behind right kick panel)
• G402 (rear of left rear shock tower)
• Ground
• Hot at all times
• I/p dimmer switch
• Illumination lamp
• Inc dim
• Instrument panel cluster (ipc)
• Joint connector
• Led dimming signal
• Left rear fuse block (below left rear seat)
• Low reference
• Memory/ personalization function switch
• Off
• Overhead console
• Park
• Park lamp relay
• Park lamp sw on sig
• Park lp rly ctrl
• Psgr dr mod fuse 10a
• R31
• R32
• R33
• R34
• Rear compartment lid release switch
• Rear dr mod fuse 15a
• Right rear fuse block (below right rear seat)
• S12
• S13
• S14
• S208
• S308
• S314
• S321 (in headliner harness, 32.5 cm from dome lamp)
• S501 (in left front door trim harness, 24 cm from driver door lock switch)
• S502 (in left front door trim harness, 14.5 cm from ddsa)
• Serial data
• Sunroof control switch
• Turn signal/ multi-function switch
• Underhood fuse block (right front of engine compartment)

Instrument Illumination Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (in right front door trim harness, 24.5 cm from door lock switch) s601
• 3.2l/3.6l
• 5.7l
• A12
• B12
• Backlight lamps ctrl
• Battery
• Computer data lines system
• Dimming fuse 2a
• Front passenger door lock switch
• Front passenger door module (on right front door, under door trim panel)
• Front passenger window switch
• Fuse block (steering column) (taped to steering column harness)
• G200 (behind the left kick panel)
• G201 (behind right kick panel)
• Ground
• Hazard switch
• Illumi- nation lamp
• Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
• Left rear door module (under door trim panel)
• Left rear window switch
• Left steering wheel controls
• Right rear door module (on right rear door, under door trim panel)
• Right rear window switch
• Right steering wheel controls
• S200
• S208
• S602 (in right front door trim harness, 8.5 cm from window switch)
• S701
• Serial data

MEMORY SYSTEMS

Memory Mirrors Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Memory Mirrors Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• 5v feed
• 5v reference
• 5v rtn
• A12
• B11
• B12
• Backlight lamps control
• Battery
• Class 2 serial data
• Computer data lines system
• Driver door module (on left door, under door trim)
• Driver door switch assembly (ddsa)
• Driver dr mod fuse 10a
• Driver outside rearview mirror
• Exit (ext)
• G200 (behind the left kick panel)
• Gnd
• Ground
• Ground rtn
• Horiz motor
• Horiz pos sensor
• Horiz posit sensor
• Hot at all times
• Interior lights system
• Left
• Left horiz
• Left rear fuse block (below left rear seat)
• Logic
• Low reference
• Memory 1 switch signal
• Memory 2 switch signal
• Memory/personalization function switch
• Mirror mtr down ctrl
• Mirror mtr left ctrl
• Mirror mtr right ctrl
• Mirror mtr up ctrl
• Nca
• Outside rearview mirror switch
• Right
• Right horiz
• S502 (in left front door trim harness, 14.5 cm from ddsa)
• Sel left
• Sel right
• Vert down
• Vert motor
• Vert pos sensor
• Vert up
• Vertical posit sensor

Memory Mirrors Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Memory Mirrors Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• 5v feed
• 5v reference
• 5v rtn
• A12
• B12
• Battery
• Class 2 serial data
• Computer data lines system
• Dr mod pwr circuit breaker 30a
• Front passenger door module (on right front door, under door trim panel)
• G201 (behind right kick panel)
• Ground
• Horiz motor
• Horiz pos sensor
• Horizontal posit sensor
• Hot at all times
• Left horiz
• Low reference
• Mirror mtr down ctrl
• Mirror mtr left ctrl
• Mirror mtr right ctrl
• Mirror mtr up ctrl
• Passenger outside rearview mirror
• Psgr dr mod fuse 10a
• Right horiz
• Right rear fuse block (below right rear seat)
• S303
• Vert down
• Vert motor
• Vert pos sensor
• Vert up
• Vertical posit sensor

Memory Seat Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Memory Seat Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• 5 volt reference
• Battery positive voltage
• Class 2 serial data
• Dr lumbar horiz posit sens signal
• Driver seat adjuster switch
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• F10
• F11
• F12
• F13
• F14
• F15
• F16 c2
• Front vertical down
• Front vertical motor down control
• Front vertical motor up control
• Front vertical up
• G307 (on floor, left of driver's seat)
• Ground
• Horizontal forward
• Horizontal forward switch signal
• Horizontal motor forward ctrl
• Horizontal motor rearward control
• Horizontal rearward
• Horizontal rearward switch signal
• Hot at all times
• Left rear fuse block (below left rear seat)
• Low reference
• Lumbar forward switch signal
• Lumbar rearward switch signal
• Lumber motor forward control
• Lumber motor rearward control
• Mem/adapt seat fuse 10a
• Memory seat module (msm) (under driver's seat)
• Pnk
• Rear vertical down
• Rear vertical motor down control
• Rear vertical motor up control
• Rear vertical posit sens signal
• Rear vertical up
• Recline back switch signal
• Recline forward
• Recline forward switch signal
• Recline motor forward control
• Recline motor rearward control
• Recline posit sens signal
• Recline rearward
• S350 (w/ heated seats)
• S351
• Seat circuit breaker 30a
• Seat horiz posit sensor signal
• Tan
• Vertical down switch signal
• Vertical posit sens signal
• Vertical up switch signal

Memory Seat Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Memory Seat Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (in driver seat harness, 10 cm from seat horizontal position sensor) s348
• (in left seat harness, 15 cm from driver seat rear vertical position sensor) s349
• Backlight lamps control
• Class 2 serial data
• Driver door module (on left door, under door trim)
• Driver door switch assembly (ddsa)
• Driver lumbar adjuster switch
• Driver lumbar horizontal motor assembly
• Driver seat front vertical motor
• Driver seat front vertical position sensor
• Driver seat horizontal motor
• Driver seat horizontal position sensor
• Driver seat rear vertical motor
• Driver seat rear vertical position sensor
• Driver seat recline motor
• Driver seat recline position sensor
• Exit (ext)
• Forward
• Gnd
• Ground
• Interior lights system
• Memory 1 sw signal
• Memory 1 switch signal
• Memory 2 sw signal
• Memory 2 switch signal
• Memory/personalization function switch
• Nca
• Not used
• Pnk
• Rearward
• S502 (in left front door trim harness, 14.5 cm from ddsa)
• Sp300 (in passenger compartment, near left side of driver's seat)
• Tan

NAVIGATION

Navigation Wiring Diagram for Cadillac CTS 2004

List of elements for Navigation Wiring Diagram for Cadillac CTS 2004:

• (coaxial cable)
• (or 1782)
• (or 655)
• (or bare)
• Audio amplifier (left side of trunk)
• Audio fuse 10a
• Bare
• Battery
• Class 2 serial data
• Computer data lines system
• Drain wire
• G402 (rear of left rear shock tower)
• Gps signal
• Ground
• Hot at all times
• Infotainment system
• Inside rearview mirror (isrvm)
• Joint connector
• Left rear fuse block (under left rear seat)
• Mic out feed
• Mic out return
• Nav voice in (+)
• Nav voice out (-)
• Navigation antenna
• Navigation voice low ref
• Navigation voice signal
• Pnk
• Radio
• S18
• Sig
• Vehicle communication interface module (vcim) (in rear compartment, behind right strut tower)
• Vehicle communication system
• Voice output (+)
• Voice output (-)
• Voice output ground

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 7) for Cadillac CTS 2004

List of elements for Power Distribution Wiring Diagram (1 of 7) for Cadillac CTS 2004:

• (3.2l)
• (3.6l)
• (except 3.2l)
• (in engine harness, 15 cm from coil 1) s145
• (in fuel injector harness, 15 cm from c121) s151
• (in fuel injector harness, near c112) s108
• (in ignition coil/module harness, on left valve cover, 5 cm from c131) s163
• (in the engine harness, 45 cm from the underhood fuse block) s132
• (not used)
• (right front of engine compartment) underhood fuse block
• 3.2l
• 3.6l
• 5.7l
• A/t
• Battery
• Blower fuse 40a
• Blower relay
• C1 g
• C2 a12
• Ccp fuse 10a
• Dash integration module (dim)
• Data link connector (dlc)
• Dim/ aldl fuse 10a
• Ecm fuse 15a
• Ecm/tcm fuse 10a
• Engine control module (ecm)
• Evaporative emission (evap) canister purge solenoid valve
• Evaporative emissions (evap) canister purge solenoid valve
• Except 5.7l
• Flasher fuse 15a
• Fuel injector
• Fusible link
• Generator
• Heated oxygen sensor (ho2s) bank 1 sensor 2
• Heated oxygen sensor (ho2s) bank 2 sensor 2
• Hi fan fuse 30a
• Hi speed fan relay
• Hvac control module
• Ignition coil 1
• Ignition coil 3
• Ignition coil 5
• Ignition coil/ module 1
• Ignition coil/ module 3
• Ignition coil/ module 5
• Ignition coil/ module 7
• Ignition manifold runner control (imrc) solenoid
• Instrument panel cluster (ipc)
• Intake manifold tuning valve (imtv) solenoid
• Left rear fuse block (below left rear seat)
• Low fan fuse 30a
• Low speed fan relay
• Main relay
• Mass air flow (maf) sensor
• Odd inj/ coil fuse 15a
• Post 2 fuse 15a
• Powertrain control module (pcm)
• Pusher fan relay
• R14
• R19
• R20
• R39
• R40
• R47
• R48
• R49
• R50
• R51
• R52
• S/p fan relay
• Spare fuse
• Starter
• Theft deterrent control module
• To underhood fuse block (horn relay) (diagram 2 of 7)
• To underhood fuse block (pre 2/cam fuse, 15a) (diagram 3 of 7)
• Tos fuse 10a
• Trailer provisions
• Transmission control module (tcm)
• Turn signal/ hazard flasher module
• Vehicle speed sensor (vss) (manual transmission)
• Volt check fuse 10a

Power Distribution Wiring Diagram (2 of 7) for Cadillac CTS 2004

List of elements for Power Distribution Wiring Diagram (2 of 7) for Cadillac CTS 2004:

• (3.2l)
• (3.6l)
• (in engine harness, approximately 8 cm from ebcm connector) s130
• (right front of engine compartment) underhood fuse block
• 5.7l
• Abs fuse 50a
• Accessory relay
• Comp clutch fuse 10a
• Comp clutch relay
• Drl relay
• Elec prndl fuse 10a
• Electronic brake control module (ebcm)
• Electronic prndl (a/t)
• Engine control module (ecm)
• Except 5.7l
• Fog lamp fuse 15a
• Fog lamp relay
• From ignition switch (pin 2) (diagram 4 of 7)
• From underhood fuse block a (main relay) (diagram 1 of 7)
• G104 (on right body rail, near right headlamp)
• Hdlp wash circuit breaker 30a
• Hdlp washer relay
• High beam relay
• Horn fuse 15a
• Horn relay
• Ign sw fuse 10a
• L rear fuse 60a
• Low beam/ hid relay
• Park lamp relay
• Powertrain control module (pcm)
• R rear fuse 60a
• R10
• R11
• R24
• R28
• R32
• R35
• R36
• R37
• R38
• R56
• R68
• Spare fuse
• Theft deterrent control module
• Theft fuse 7.5a
• To ignition switch (pin 6) (diagram 4 of 7)
• To left rear fuse block (driver dr mod fuse, 10a) (diagram 5 of 7)
• To left rear fuse block (pusher fan fuse, 30a) (diagram 5 of 7)
• To right rear fuse block (dr mod pwr circuit breaker, 30a) (diagram 6 of 7)
• To right rear fuse block (rim/ign sw fuse, 10a) (diagram 4 of 7)
• To underhood fuse block (i/p out let fuse, 20a) (diagram 3 of 7)
• Transmission control module (tcm) (a/t)
• Windshield wiper/ washer module
• Windshield wiper/ washer switch
• Wpr mod fuse 30a
• Wpr sw fuse 10a

Power Distribution Wiring Diagram (3 of 7) for Cadillac CTS 2004

List of elements for Power Distribution Wiring Diagram (3 of 7) for Cadillac CTS 2004:

• (3.2l)
• (3.6l)
• (a/t)
• (accessory relay) (diagram 2 of 7)
• (in body harness, 22 cm from a/c pressure switch connector)
• (in engine harness, 15 cm from coil 5) s142
• (in engine harness, 24.5 cm from ect sensor) s146
• (in engine harness, approximately 20 cm from underhood fuse block) s162
• (in fuel injector harness, 15 cm from c121) s152
• (in ignition coil/module harness, on right valve cover, 5 cm from c132) s164
• (on right body rail, near right headlamp) g104
• (right front of engine compartment) underhood fuse block
• 3.2l
• 3.6l
• 5.7l
• A/t
• A8 c2
• Auxiliary power outlet
• B+ mode
• Battery saver mode
• Camshaft actuator solenoid exhaust bank 1
• Camshaft actuator solenoid exhaust bank 2
• Camshaft actuator solenoid intake bank 1
• Camshaft actuator solenoid intake bank 2
• Camshaft position (cmp) sensor
• Cigar lighter
• Cigar relay
• Clutch pedal position (cpp) sensor
• Cmp clu relay
• Coolant bypass valve solenoid
• Dash integration module (dim)
• Engine control module (ecm)
• Evaporative emission (evap) canister purge solenoid valve
• Even inj/ coil fuse 15a
• Except 3.6l
• Except 5.7l
• Fog lamp relay
• From ignition switch (via splice pack sp200) (pin 8) (diagram 4 of 7)
• From underhood fuse block b (ecm fuse, 15a) (diagram 1 of 7)
• From underhood fuse block h
• Fuel injector 2
• Fuel injector 4
• Fuel injector 6
• Fuel injector 8
• G201 (behind right kick panel)
• Heated oxygen sensor (ho2s) bank 1 sensor 1
• Heated oxygen sensor (ho2s) bank 2 sensor 1
• Htr vlv/ cltch fuse 10a
• I/p outlet fuse 20a
• Ign 1 relay
• Ignition coil 2
• Ignition coil 4
• Ignition coil 6
• Ignition coil/ module 2
• Ignition coil/ module 4
• Ignition coil/ module 6
• Ignition coil/ module 8
• Instrument panel cluster (ipc)
• Intake manifold runner control (imrc) solenoid
• M/t
• Outlet fuse 30a
• Pnk
• Pnk a
• Pnk/ (in engine harness, 15.5 cm from c101) s170
• Powertrain control module (pcm)
• Pre o2/ cam fuse 15a
• R43
• R44
• R45
• R46
• R55
• R59
• R60
• R61
• R62
• R63
• R64
• Reverse lockout solenoid
• S131
• S202
• S308
• Skip shift solenoid
• Splice pack sp200
• Starter fuse 30a
• Starter relay
• Tcm/ipc fuse 15a
• Throttle actuator control (tac) module
• To underhood fuse block (wash noz fuse, 10a) (diagram 4 of 7)
• Transmission control module (tcm)

Power Distribution Wiring Diagram (4 of 7) for Cadillac CTS 2004

List of elements for Power Distribution Wiring Diagram (4 of 7) for Cadillac CTS 2004:

• (3.2l)
• (3.6l)
• (in steering column harness, 12.7 cm from c202) s207
• 3.2l
• 3.2l & 3.6l
• 3.6l
• 5.7l
• A11
• Acc
• Accessory
• Cruise control switch
• Cruise control switch fuse 2a
• Dash integration module (dim)
• Engine control module (ecm)
• Except 5.7l
• From underhood fuse block (ign sw fuse, 10a) (diagram 2 of 7)
• From underhood fuse block (r rear fuse, 60a) (connector c3, pin 1) (diagram 2 of 7)
• From underhood fuse block (tcc/et fuse, 10a) (diagram 3 of 7)
• Ign mod/maf fuse 15a
• Ignition 1
• Ignition coil bank 1 (3.2l)
• Ignition coil bank 2
• Ignition lock cylinder control actuator
• Ignition switch
• Inflatable restraint steering wheel module coil
• Left headlamp
• Left heated washer nozzle
• Mass air flow (maf) sensor
• Off/lock
• Pnk
• Powertrain control module (pcm)
• Rear integration module (rim)
• Right headlamp
• Right heated washer nozzle
• Right rear fuse block (below right rear seat)
• Right steering wheel controls
• Rim/ ign sw fuse 10a
• Run
• S200 (in the i/p harness, 11.5 cm from sp200)
• Spare fuse
• Splice pack sp200
• Start
• Steering column fuse block (taped to steering column harness)
• Strg ctls fuse 10a
• To left rear fuse block (ign 3 relay) (diagram 6 of 7)
• To right rear fuse block (ign 1 relay) (diagram 7 of 7)
• To underhood fuse block (accessory relay) (connector c4, pin 37) (diagram 2 of 7)
• To underhood fuse block (cmp clu relay) (diagram 3 of 7)
• Turn signal switch
• Turn signal/ multifunction switch
• Underhood fuse block (right front of engine compartment)
• W/ automatic headlamps control leveling system
• Wash noz fuse 10a

Power Distribution Wiring Diagram (5 of 7) for Cadillac CTS 2004

List of elements for Power Distribution Wiring Diagram (5 of 7) for Cadillac CTS 2004:

• (below left rear seat) left rear fuse block
• (in driver seat harness, 8 cm from msm connector) s351
• (in headliner harness, 22.5 cm from radio antenna module) s313
• A12
• Amp fuse 30a
• Audio amplifier
• Audio fuse 10a
• Bas fuse 15a
• Bas relay
• Digital radio receiver
• Driver adjuster seat switch
• Driver door module (ddm)
• Driver dr mod fuse 10a
• Driver heated seat module
• Driver lumbar adjuster switch
• F11
• From underhood fuse block (l rear fuse, 60a) (connector c2, pin 1) (diagram 2 of 7)
• From underhood fuse block (l rear fuse, 60a) (connector c2, pin 2) (diagram 2 of 7)
• Garage door opener
• Joint connector
• L frt htd seat mod fuse 10a
• Left rear door module (lrdm)
• Left rear fuse block (ign 3 relay) (diagram 6 of 7)
• Mem/adapt seat fuse 10a
• Memory seat module (msm)
• Pusher fan fuse 30a
• Pusher fan relay (trailer provisions)
• R31
• R32
• R36
• R37
• Radio
• Radio antenna module
• Rear dr mod fuse 15a
• Rev lamp relay
• Reverse lamp fuse 10a
• Right rear door module (rrdm)
• S12
• S13
• S14
• S15
• S17
• S18
• S19
• S20
• S21
• S22
• S23
• Spare fuse
• Trk dr rel sol relay
• Trunk dr release fuse 10a
• Vehicle communication interface module (vcim)
• W/ 7 speaker system
• W/o 7 speaker system

Power Distribution Wiring Diagram (6 of 7) for Cadillac CTS 2004

List of elements for Power Distribution Wiring Diagram (6 of 7) for Cadillac CTS 2004:

• (below right rear seat) right rear fuse block
• (except 5.7l) (5.7l)
• (in body harness, 108 cm from c700) s304
• (in body harness, 108 cm from c800) s303
• (in i/p harness, 11.5 cm from sp200) s200
• (in passenger seat harness, 12.7 cm from c307) s352
• A/t shift lock control solenoid assembly
• A/t shift shift lock control solenoid
• A11
• After boil fuse 10a
• After boil relay
• Canister vent fuse 10a
• Ccp fuse 10a
• Dr mod pwr circuit breaker 30a
• Driver door module (ddm)
• Driver heated seat module
• Driver seat adjuster switch
• Evaporative emissions (evap) canister vent solenoid valve
• From ignition switch (pin 5) (diagram 4 of 7)
• From left rear fuse block (trk dr release fuse, 10a) (diagram 5 of 7)
• From underhood fuse block (r rear fuse, 60a) (connector c3, pin 2) (diagram 2 of 7)
• Front headlamp leveling sensor
• Front passenger door module (fpdm)
• Front passenger heated seat module
• Fuel pump motor relay
• Fuel pump mtr fuse 15a 20a
• G402 (rear of left rear shock tower)
• Hdlp leveling fuse 10a
• Hvac control module
• Ign 3 fuse 10a
• Ign 3 relay
• Ignition lock cylinder control actuator
• Ignition switch
• Joint connector
• Left rear door module (lrdm)
• Left rear fuse block (below left rear seat)
• Memory seat module (msm)
• Passenger lumbar adjuster switch
• Passenger seat adjuster switch
• R frt htd seat mod fuse 10a
• R11
• R12
• R21
• R22
• R23
• R25
• R37
• Rap relay
• Rear defog relay
• Rear headlamp leveling sensor
• Rear integration module
• Rear integration module (rim)
• Recirculation actuator
• Right rear door module (rrdm)
• Right rear fuse block (below right rear seat)
• Rim/ign sw fuse 10a
• Seat circuit breaker 30a
• Spare fuse
• Sunroof module
• Tan
• Underhood fuse block (right front of engine compt)
• W/ memory
• W/ power lumbar control seats
• W/ power seats
• W/o memory
• W/o power lumbar control seats
• W/o power seats

Power Distribution Wiring Diagram (7 of 7) for Cadillac CTS 2004

List of elements for Power Distribution Wiring Diagram (7 of 7) for Cadillac CTS 2004:

• A12
• Abs fuse 10a
• Air bag fuse 10a
• Electronic brake control module (ebcm)
• From ignition switch (via splice pack sp200, pin 9) (diagram 4 of 7)
• From right rear fuse block (rim/ign sw fuse, 10a) (diagram 4 of 7)
• Front passenger door module (fpdm)
• G401 (rear of right rear shock tower)
• Ign 1 relay
• Inflatable restraint sensing & diagnostic module (sdm)
• Inside rear view mirror
• Int lamp relay
• Interior lamp fuse 10a
• Joint connector
• Pnk
• Psgr dr mod fuse 10a
• R16
• R17
• R21
• R22
• R23
• R25
• R31
• R32
• Rear defog fuse 40a
• Rear defog relay
• Rear fog lamp fuse 10a
• Rear fog lamp relay
• Rear integration module (rim)
• Right rear fuse block (below right rear seat)
• Rim fuse 10a
• S20
• S21
• S22
• S23

POWER DOOR LOCKS

Power Door Locks Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Power Door Locks Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• (behind left kick panel) g200
• (behind right kick panel) g201
• A12
• B10
• B11
• B12
• Backlight lamps ctrl
• Battery
• Class 2 serial data
• Computer data lines system
• Door ajar signal
• Door ajar sw signal
• Door ajar switch signal
• Door key sw unlock sig
• Door key unlock switch signal
• Door lock mtr lock ctrl
• Door lock mtr unlk ctrl
• Door lock sw lock sig
• Door lock sw unlock sig
• Door lock switch signal
• Door open signal
• Door open switch signal
• Dr mod pwr circuit breaker 30a
• Driver door latch assembly
• Driver door module (on left door, under door trim)
• Driver door switch assembly (ddsa)
• Driver dr key sw signal
• Driver dr mod fuse 10a
• Front passenger door latch assembly
• Front passenger door module (on right front door, under door trim panel)
• Gnd
• Ground
• Hot at all times
• Interior lights system
• Joint connector
• Keyless entry antenna signal
• Left front door sw sig
• Left rear fuse block (below left rear seat)
• Memory seat switch
• Psgr dr mod fuse 10a
• Radio antenna module (above headliner, near rear window)
• Rear compartment lid release switch
• Rear dr mod fuse 15a
• Rear glass antenna
• Rfa grid
• Right rear fuse block (below right rear seat)
• S12
• S13
• S14
• S20
• S22
• S303
• S313
• S502 (in left front door trim harness, 14.5 cm from ddsa)
• Tan
• Trunk dr release fuse 10a

Power Door Locks Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Power Door Locks Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (behind left kick panel) g200
• (behind right kick panel) g201
• A12
• Ajar
• B10
• B12
• Backlight lamp ctrl
• Backlight lamps control
• Backlight lamps ctrl
• Battery
• Class 2 serial data
• Computer data lines system
• Door act lock ctrl
• Door ajar switch signal
• Door lock act lock ctrl
• Door lock act unlk ctrl
• Door lock unlock ctrl
• Door open switch signal
• Driver door lock switch
• Front passenger door lock switch
• Front passenger window switch
• Ground
• Interior lights system
• Left rear door latch assembly
• Left rear door module (under door trim panel)
• Lock
• Open
• Right rear door latch assembly
• Right rear door module (on right rear door, under door trim panel)
• S602 (in right front door trim harness, 8.5 cm from window switch)
• S701
• Tan
• Unlock

POWER MIRRORS

Automatic Day/Night Mirror Wiring Diagram for Cadillac CTS 2004

List of elements for Automatic Day/Night Mirror Wiring Diagram for Cadillac CTS 2004:

• (or bare)
• (rear of left rear shock tower) g402
• A12
• Backup lamp voltage
• Bare
• Base
• Class 2 serial data
• Computer data lines system
• Drain wire
• Exterior lights system
• Ground
• Hot at all times
• Hot in run or start
• Ignition voltage
• Inside rearview mirror (isrvm)
• Joint connector
• Key pad sig
• Led signal
• Left rear fuse block (below left rear seat)
• Luxury
• Microphone
• Microphone low ref
• Microphone sig
• Pnk
• Pnk s21
• R36
• R37
• R38
• R40
• Radio
• Rear integration module (under package shelf trim panel)
• Rev lamp fuse 10a
• Rev lamp relay
• Reverse lamp ctrl
• Right rear fuse block (below right rear seat)
• Rim fuse 10a
• S23
• Vehicle communication interface module (vcim) (in rear compt, behind right strut tower)

Power Mirrors Wiring Diagram for Cadillac CTS 2004

List of elements for Power Mirrors Wiring Diagram for Cadillac CTS 2004:

• A12
• B11
• B12
• Battery
• Class 2 serial data
• Computer data lines system
• Down
• Dr mod pwr circuit breaker 30a
• Driver door module (on left door, under door trim)
• Driver door switch assembly (ddsa)
• Driver dr mod fuse 10a
• Driver outside rearview mirror
• Front passenger door module (on right front door, under door trim panel)
• G200 (behind the left kick panel)
• G201 (behind right kick panel)
• Ground
• Ground rtn
• Horiz motor
• Hot at all times
• Interior lights system
• Left
• Left mirror mtr-down
• Left mirror mtr-left
• Left mirror mtr-right
• Left mirror mtr-up
• Left rear fuse block (below left rear seat)
• Logic
• Outside rearview mirror switch
• Passenger outside rearview mirror
• Psgr dr mod fuse 10a
• Right
• Right mirror motor-up
• Right mirror mtr -down
• Right mirror mtr-left
• Right mirror mtr-right
• Right rear fuse block (below right rear seat)
• S303
• S502 (in left front door trim harness, 14.5 cm from ddsa)
• Sel left
• Sel right
• Vert motor

POWER SEATS

Heated Seats Wiring Diagram for Cadillac CTS 2004

List of elements for Heated Seats Wiring Diagram for Cadillac CTS 2004:

• (on floor, left of driver's seat) g307
• A11
• A12
• B12
• Battery
• Class 2 serial data
• Computer data lines system
• Dash integration module (dim) (under right side of dash, above right closeout/insulator panel)
• Driver heated seat
• Driver heated seat status
• Driver heated seat switch
• Driver high/low signal
• Driver seat back heated seat element
• Driver seat front cushion heated seat element
• Driver seat rear cushion heated seat element
• Driver's heated seat module (under driver's seat)
• E10
• Front passenger heated seat
• Front passenger seat back heated seat element
• Front passenger seat cushion front heated seat element
• Front passenger seat cushion rear heated seat element
• Ground
• Heated seat element control
• Heated seat element voltage
• Heated seat high/low signal
• Heated seat module status sig
• Heated seat module status signal
• Heated seat sensor low ref
• Heated seat temp sens signal
• Hot at all times
• Hot in run
• Hvac control module (behind center of dash, below radio)
• Ign 3 fuse 10a
• Ignition 3 voltage
• Joint connector
• Left rear fuse block (below left rear seat)
• Logic
• Lt frt htd seat mod fuse 10a
• Passenger heated seat status
• Passenger heated seat switch
• Passenger high/low signal
• Passenger's heated seat module (under passenger's seat)
• Pnk
• R frt htd seat mod fuse 10a
• Radio
• Rear integration module (under package shelf trim panel)
• Right rear fuse block (below right rear seat)
• S305 (w/o power lumbar)
• S320 (w/ power lumbar)
• S350
• Seat temp sensor low ref
• Seat temp sensor signal
• Thermistor

Passenger"s Lumbar Wiring Diagram for Cadillac CTS 2004

List of elements for Passenger"s Lumbar Wiring Diagram for Cadillac CTS 2004:

• Forward
• G307 (on floor, left of driver's seat)
• Hot at all times
• Left rear fuse block (below left rear seat)
• Passenger lumbar adjuster switch
• Passenger lumbar horizontal motor
• Rearward
• S320
• S352
• Seat circuit breaker 30a

Power Seats Wiring Diagram for Cadillac CTS 2004

List of elements for Power Seats Wiring Diagram for Cadillac CTS 2004:

• (on floor, left of driver's seat) g307
• Aft
• Battery
• Down
• Driver seat adjuster switch
• Driver seat front vertical motor
• Driver seat horizontal motor
• Driver seat rear vertical motor
• Driver seat recline motor
• Front vertical down
• Front vertical up
• Fwd
• Gnd
• Horizontal forward
• Horizontal rearward
• Hot at all times
• Left rear fuse block (below left rear seat)
• Passenger seat adjuster switch
• Passenger seat front vertical motor
• Passenger seat horizontal motor
• Passenger seat rear vertical motor
• Passenger seat recline motor
• Rear vertical down
• Rear vertical up
• Recline forward
• Recline rearward
• S304 (w/ passenger power seats)
• S305 (w/o power lumbar)
• S320 (w/ power lumbar)
• S350 (w/ heated seats)
• S352 (w/ power lumbar)
• Seat circuit breaker 30a
• Tan

POWER TOP/SUNROOF

Sunroof Wiring Diagram for Cadillac CTS 2004

List of elements for Sunroof Wiring Diagram for Cadillac CTS 2004:

• (in sunroof harness, 9 cm from sunroof module)
• Close
• G401 (rear of right rear shock tower)
• Ground
• Hall effect sensor 1
• Hall effect sensor 2
• Hot at all times
• Illumination +
• Illumination -
• Interior lights system
• Limit switch
• Nca
• Open
• Pnk
• Rap relay
• Rap relay coil ctrl
• Rear integration module (under package shelf trim panel)
• Right rear fuse block (below right rear seat)
• S318
• Solid state (close)
• Solid state (open)
• Sunroof control switch
• Sunroof limit switch low reference
• Sunroof limit switch stop signal
• Sunroof mod fuse 30a
• Sunroof module
• Sunroof motor (at left front corner of sunroof module)
• Sunroof motor close control
• Sunroof motor open control
• Sunroof obstruction sensor 12 vref
• Sunroof obstruction sensor 2 signal
• Sunroof obstruction sensor signal
• Sunroof switch low reference
• Sunroof switch-data 1
• Sunroof switch-data 2
• Sunroof switch-data 3
• Sunroof switch-data 4
• Sunroof switch-data 5
• Sunroof switch-data 6
• Sunroof switch-low reference
• Tan
• Vehicle speed signal

POWER WINDOWS

Power Windows Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Power Windows Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• A12
• B11
• B12
• Battery
• Battery positive voltage
• Class 2 serial data
• Computer data lines system
• Door locks system
• Down control
• Down sig
• Dr mod pwr c/b circuit breaker 30a
• Driver door module (on left door, under door trim)
• Driver dr mod fuse 10a
• Driver window motor
• Express signal
• Front passenger door module (on right front door, under door trim panel)
• Front passenger window motor
• Front passenger window switch
• G200 (behind the left kick panel)
• G201 (behind right kick panel)
• Ground
• High speed serial data
• Hot at all times
• Interior lights system
• Joint connector
• Left rear fuse block (below left rear seat)
• Low reference
• Low speed serial data
• Pnk
• Psgr dr mod fuse 10a
• Rear dr mod fuse 15a
• Right rear fuse block (below right rear seat)
• S12
• S13
• S14
• S303
• S602 (in right front door trim harness, 8.5 cm from window switch)
• Up control
• Up signal

Power Windows Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Power Windows Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (on right rear door, under door trim panel) right rear door module
• A12
• B12
• Backlights lamps ctrl
• Battery
• Class 2 serial data
• Computer data lines system
• Door locks system
• Down control
• Down signal
• Driver door switch assembly (ddsa)
• Drv window down sig
• Drv window express sig
• Drv window up sig
• Express signal
• Front passenger down sig
• Front passenger express sig
• Front passenger up sig
• G200 (behind the left kick panel)
• G201 (behind right kick panel)
• Ground
• Left rear door module (under door trim panel)
• Left rear window motor
• Left rear window switch
• Logic
• Lr window down sig
• Lr window express sig
• Lr window up sig
• Right rear window motor
• Right rear window switch
• Rr window down sig
• Rr window express sig
• Rr window up sig
• S701
• Up control
• Up signal
• Window lock out

RADIO

Radio Wiring Diagram, Base (1 of 2) for Cadillac CTS 2004

List of elements for Radio Wiring Diagram, Base (1 of 2) for Cadillac CTS 2004:

• (dd8) inside rearview mirror
• (or 1782)
• (or 655)
• (or bare)
• (rear of left rear shock tower) g402
• (right rear package shelf) (w/o gps) navigation antenna
• Am/fm antenna signal
• Amp fuse 30a
• Antenna signal
• Audio fuse 10a
• Bare
• Battery
• Cellular microphone signal
• Class 2 serial data
• Coaxial cable
• Coil 1
• Coil 2
• Computer data lines system
• Drain
• Drain wire
• Fm composite signal
• Gps sig
• Ground
• Hot at all times
• Info down switch signal
• Information up sw signal
• Instrument cluster system
• Joint connector
• Keyless entry/tire pressure antenna signal
• Left a pillar speaker (tweeter)
• Left audio signal (+)
• Left audio signal (-)
• Left front door speaker (midrange)
• Left rear fuse block (below left rear seat)
• Modern ground (not used)
• Modern receive (not used)
• Modern transmit (not used)
• Pnk
• Radio
• Radio antenna module (above headliner, near rear window)
• Radio front glass antenna
• Radio rear glass antenna
• Rear speaker (subwoofer)
• Red
• Remote radio ctrl voltage
• Return voice in signal
• Rfa rear window antenna
• Right audio signal (+)
• Right audio signal (-)
• S18
• S22
• S313
• Steering wheel ctrls sig
• Tan
• U2y/u26
• Uav
• Vehicle speed signal
• Voice in signal

Radio Wiring Diagram, Base (2 of 2) for Cadillac CTS 2004

List of elements for Radio Wiring Diagram, Base (2 of 2) for Cadillac CTS 2004:

• (midrange) left rear door speaker
• (midrange) right front door speaker
• (midrange) right rear door speaker
• (rear of left rear shock tower) g402
• (tweeter) right a pillar speaker
• A10
• A11
• Audio amplifier (left side of trunk)
• B10
• B11
• B12
• Bare
• Battery
• C12
• C202 c1
• Cellular telephone voice low ref
• Cellular telephone voice signal
• Class 2 serial data
• Computer data lines system
• Drain wire
• Fuse block (steering column) (early production) (taped to steering column harness)
• G200 (behind the left kick panel)
• Ground
• Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
• Interior lights system
• Left fnt low level audio sig (+)
• Left fnt low level audio sig (-)
• Left front midrange spkr out (+)
• Left front midrange spkr out (-)
• Left front tweeter spkr out (+)
• Left front tweeter spkr out (-)
• Left rear midrange spkr out (+)
• Left rear midrange spkr out (-)
• Left steering wheels controls
• Left subwoofer spkr out (+)
• Left subwoofer spkr out (-)
• Low ref
• Mic out
• Mic out rtn
• Mic out shield
• Modern ground (not used)
• Modern receiver (not used)
• Modern trasmid (not used) (not used)
• Nca
• Pnk
• Rdt1
• Rdt2
• Right fnt low level audio sig (+)
• Right fnt low level audio sig (-)
• Right fnt midrange spkr out (+)
• Right fnt midrange spkr out (-)
• Right front tweeter spkr out (+)
• Right front tweeter spkr out (-)
• Right rear midrange spkr out (+)
• Right rear midrange spkr out (-)
• Right steering wheels controls
• Right subwoofer spkr out (+)
• Right subwoofer spkr out (-)
• S208
• Steering wheel control assembly (3.2l/3.6l)
• Steering wheel control switch fuse 2a
• Sw1 ent
• Sw2 back
• Sw3
• Sw4
• Sw5
• Sw6
• Tan
• Vehicle communication interface module (vcim) (in rear compartment, behind right strut tower)
• Voice signal

Radio Wiring Diagram, Luxury (1 of 2) for Cadillac CTS 2004

List of elements for Radio Wiring Diagram, Luxury (1 of 2) for Cadillac CTS 2004:

• (dd8) inside rearview mirror
• (or 1782)
• (or 655)
• (rear of left rear shock tower) g402
• (right rear package shelf) (w/o gps) navigation antenna
• 10a
• Am/fm antenna signal
• Amp fuse 30a
• Antenna signal
• Audio common
• Audio fuse 10a
• Bare
• Battery
• Cellular microphone signal
• Class 2 serial data
• Coaxial cable
• Computer data lines system
• Digital radio antenna (center rear of roof)
• Digital radio receiver (u2k/u2l) (left side of rear package shelf)
• Drain
• Drain wire
• Fm composite signal
• Gps sig
• Ground
• Hot at all times
• Info down switch signal
• Information up sw signal
• Instrument cluster system
• Joint connector
• Keyless entry/tire pressure antenna signal
• Left audio signal (+)
• Left audio signal (-)
• Left rear fuse block (below left rear seat)
• Modern ground (not used)
• Modern receive (not used)
• Modern transmit (not used)
• Nca
• Noise compensation microphone (in overhead console)
• Pnk
• Radio
• Radio antenna module (above headliner, near rear window)
• Radio front glass antenna
• Radio rear glass antenna
• Red
• Remote radio ctrl voltage
• Return voice in signal
• Rfa rear window antenna
• Right a pillar speaker (tweeter)
• Right audio signal (+)
• Right audio signal (-)
• Right front door speaker
• S18
• S19
• S22
• S313
• Satellite antenna
• Satellite antenna signal
• Steering wheel ctrls sig
• Tan
• Terrestrial antenna
• Terrestrial antenna signal
• Trunk dr release fuse
• U2y/u26
• Uav
• Uav/u2x/ u2y
• Vehicle speed signal
• Voice in signal
• Voice output (+)
• Voice output (-)
• Voice output ground

Radio Wiring Diagram, Luxury (2 of 2) for Cadillac CTS 2004

List of elements for Radio Wiring Diagram, Luxury (2 of 2) for Cadillac CTS 2004:

• (in passenger compartment, near left side of driver's seat) sp300
• (midrange) left rear door speaker
• (rear of left rear shock tower) g402
• (subwoofer) rear speaker
• A10
• A11
• A12
• Audio amplifier (left side of trunk)
• B10
• B11
• B12
• Bare
• Battery
• C1 c202
• C12
• Cellular telephone voice low ref
• Cellular telephone voice signal
• Class 2 serial data
• Computer data lines system
• Drain wire
• Front center speaker out (+)
• Front center speaker out (-)
• Front speaker (center)
• Fuse block (steering column) (early production) (taped to steering column harness)
• G200 (behind the left kick panel)
• Ground
• Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
• Interior lights system
• Left a pillar speaker (tweeter)
• Left front door speaker (tweeter)
• Left front low level signal (+)
• Left front low level signal (-)
• Left front tweeter spkr out (+)
• Left front tweeter spkr out (-)
• Left rear midrange spkr out (+)
• Left rear midrange spkr out (-)
• Left steering wheels controls
• Low ref
• Mic out
• Mic out rtn
• Modern ground (not used)
• Modern receiver (not used)
• Modern tranmid (not used)
• Navigation voice in (+)
• Navigation voice out (-)
• Noise compensation micro voltage
• Pnk
• Rdt1
• Rdt2
• Right front low level signal (+)
• Right front low level signal (-)
• Right front tweeter spkr out (+)
• Right front tweeter spkr out (-)
• Right rear door speaker
• Right rear midrange spkr out (-)
• Right steering wheels controls
• S208
• Steering wheel control assembly (3.2l/3.6l)
• Steering wheel control sw fuse 2a
• Subwoofer spkr out (+)
• Subwoofer spkr out (-)
• Sw1 ent
• Sw2 back
• Sw3
• Sw4
• Sw5
• Sw6
• Tan
• Vehicle communication interface module (vcim) (in rear compartment, behind right strut tower)
• Voice signal

SHIFT INTERLOCK

Ignition Lock Solenoid Wiring Diagram for Cadillac CTS 2004

List of elements for Ignition Lock Solenoid Wiring Diagram for Cadillac CTS 2004:

• A/t shift lock control solenoid assembly (in center console)
• A11
• A12
• Class 2 serial data
• Computer data lines system
• Dash integration module (under right side of dash, above right closeout/insulator panel)
• Hot at all times
• Ignition lock cyl ctrl
• Ignition lock cylinder control actuator (on steering column)
• Ignition lock cylinder control switch
• Right rear fuse block (below right rear seat)
• Rim/ign sw fuse 10a
• S200
• Tan

Shift Interlock Wiring Diagram for Cadillac CTS 2004

List of elements for Shift Interlock Wiring Diagram for Cadillac CTS 2004:

• A/t shift lock control solenoid
• A/t shift lock control solenoid assembly (in center console)
• A12
• B12
• Class 2 serial data
• Computer data lines system
• G402 (rear of left rear shock tower)
• Hot at all times
• Hot in run
• Ign 3 fuse 10a
• Ign 3 relay
• Joint connector
• Left rear fuse block (below left rear seat)
• R21
• R22
• R25
• Rear integration module (under package shelf trim panel)
• Shift lock solenoid control

STARTING/CHARGING

3.2L VIN N

3.2L VIN N, Charging Wiring Diagram for Cadillac CTS 2004

List of elements for 3.2L VIN N, Charging Wiring Diagram for Cadillac CTS 2004:

• (3.2l: on engine block, near starter) (3.6l: back of right cylinder head) g102
• (right side of engine compt) g105
• 3.2l
• 3.6l
• 3.6l 3.2l
• Battery
• Battery charge indicator
• Class 2
• Class 2 serial data
• Computer data lines system
• Engine control module (ecm) (front of right valve cover)
• Fusible link
• Gen f term
• Gen l term
• Generator
• Ground distribution system
• Instrument panel cluster (ipc)
• Logic
• Power distribution system
• Red
• Serial data class 2
• Starter

3.2L VIN N, Starting Wiring Diagram for Cadillac CTS 2004

List of elements for 3.2L VIN N, Starting Wiring Diagram for Cadillac CTS 2004:

• (3.2l: on engine block, near starter) (3.6l: back of right cylinder head) g102
• (on right body rail, near right headlamp) g104
• (right side of engine compt) g105
• 3.2l
• 3.6l
• A/t
• Acc
• Battery
• Charging circuit
• Clutch pedal position switch (m/t) (on clutch pedal bracket)
• Computer data lines system
• Cooling fans system
• Cpp switch signal
• Crank voltage
• Engine control module (ecm) (3.6l (vin 7): fronr of right valve cover)
• Ground distribution system
• Hot at all times
• Hot in run or start
• Htr vlv/ cltch fuse 10a
• Ign 1 relay
• Ignition switch
• Lock
• M/t
• Off
• Pnk
• R43
• R44
• R45
• R46
• R63
• R64
• R65
• R66
• Red
• Run
• S131 (in body harness, 22 cm from a/c pressure switch connector)
• Serial data
• Splice pack sp200 (in right front of passenger compartment, under dash, above steering column)
• Start
• Starter
• Starter fuse 30a
• Starter relay
• Starter relay coil ctrl
• Starter relay coil voltage
• Underhood fuse block (right front of engine compartment)

3.6L VIN 7

3.6L VIN 7, Charging Wiring Diagram for Cadillac CTS 2004

List of elements for 3.6L VIN 7, Charging Wiring Diagram for Cadillac CTS 2004:

• (3.2l: on engine block, near starter) (3.6l: back of right cylinder head) g102
• (right side of engine compt) g105
• 3.2l
• 3.6l
• 3.6l 3.2l
• Battery
• Battery charge indicator
• Class 2
• Class 2 serial data
• Computer data lines system
• Engine control module (ecm) (front of right valve cover)
• Fusible link
• Gen f term
• Gen l term
• Generator
• Ground distribution system
• Instrument panel cluster (ipc)
• Logic
• Power distribution system
• Red
• Serial data class 2
• Starter

3.6L VIN 7, Starting Wiring Diagram for Cadillac CTS 2004

List of elements for 3.6L VIN 7, Starting Wiring Diagram for Cadillac CTS 2004:

• (3.2l: on engine block, near starter) (3.6l: back of right cylinder head) g102
• (on right body rail, near right headlamp) g104
• (right side of engine compt) g105
• 3.2l
• 3.6l
• A/t
• Acc
• Battery
• Charging circuit
• Clutch pedal position switch (m/t) (on clutch pedal bracket)
• Computer data lines system
• Cooling fans system
• Cpp switch signal
• Crank voltage
• Engine control module (ecm) (3.6l (vin 7): fronr of right valve cover)
• Ground distribution system
• Hot at all times
• Hot in run or start
• Htr vlv/ cltch fuse 10a
• Ign 1 relay
• Ignition switch
• Lock
• M/t
• Off
• Pnk
• R43
• R44
• R45
• R46
• R63
• R64
• R65
• R66
• Red
• Run
• S131 (in body harness, 22 cm from a/c pressure switch connector)
• Serial data
• Splice pack sp200 (in right front of passenger compartment, under dash, above steering column)
• Start
• Starter
• Starter fuse 30a
• Starter relay
• Starter relay coil ctrl
• Starter relay coil voltage
• Underhood fuse block (right front of engine compartment)

5.7L VIN P

5.7L VIN P, Charging Wiring Diagram for Cadillac CTS 2004

List of elements for 5.7L VIN P, Charging Wiring Diagram for Cadillac CTS 2004:

• (on engine block, near generator)
• (on inner fender wall, near battery) g105
• Battery
• Charge indicator
• Class 2
• Class 2 serial data
• Computer data lines system
• Fusible link
• G102
• Gen duty cycle sig
• Gen turn on sig
• Generator
• Ground distribution system
• Ign b+
• Instrument panel cluster (ipc)
• Logic
• Power distribution system
• Powertrain control module (pcm)
• Serial data class 2
• Starter (lower right side of engine)

5.7L VIN P, Starting Wiring Diagram for Cadillac CTS 2004

List of elements for 5.7L VIN P, Starting Wiring Diagram for Cadillac CTS 2004:

• (on engine block, near generator) g102
• (on inner fender wall, near battery) g105
• (on right body rail, near right headlamp) g104
• Acc
• Battery
• Charging circuit
• Clutch pedal position switch (on clutch pedal bracket)
• Cpp switch signal
• Crank voltage
• Ground distribution system
• Hot at all times
• Hot in run or start
• Htr vlv/ cltch fuse 10a
• Ign 1 relay
• Ignition switch
• Lock
• Off
• Pnk
• Powertrain control module (pcm)
• R43
• R44
• R45
• R46
• R63
• R64
• R65
• R66
• Run
• Splice pack sp200 (in right front of passenger compartment, under dash, above steering column)
• Start
• Starter
• Starter fuse 30a
• Starter relay
• Starter relay coil ctrl
• Starter relay coil voltage
• Underhood fuse block (right front of engine compartment)

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• (in left front seat belt buckle) driver seat belt switch
• (in seat)
• (near base of left "b" pillar) driver inflatable restraint side impact sensing module
• (near base of right "b" pillar) passenger inflatable restraint side impact sensing module
• Airbag fuse 10a
• Case ground
• Computer data lines system
• Driver inflatable restraint roof rail module (above left "b" pillar)
• Driver inflatable restraint side impact module (on left side of left front seat)
• Driver seat belt pretensioner
• G306 (in passenger compartment, under center console)
• Ground
• High control
• Hot in run or crank
• Ignition 1 voltage
• Inflatable restraint sensing & diagnostic module (sdm) (at center of passenger compartment floor, under console)
• Inflatable restraint steering wheel module (on steering wheel)
• Inflatable restraint steering wheel module coil
• Left seat belt switch
• Low control
• Low reference
• Nca
• Passenger inflatable restraint side impact module (on right side of right front seat)
• Pnk
• Right rear fuse block (below right rear seat)
• Sensor signal
• Sensor voltage
• Serial data
• Shorting bar
• Shorting clip
• Stage 1
• Stage 2
• Tan

Supplemental Restraints Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• Air bag indicator
• Class 2
• Computer data lines system
• Data link connector (dlc) (under left side of dash)
• Ign
• Inflatable restraint front end discriminating sensor (on upper radiator support)
• Inflatable restraint i/p module
• Instrument panel cluster
• Logic
• Message center
• Nca
• Passenger inflatable restraint roof rail module (above right "b" pillar)
• Passenger seat belt pretensioner
• Radio
• Serial data
• Service air bag
• Shorting bar
• Shorting clip
• Splice pack sp200 (right front passenger compartment, under dash, above steering column)
• Splice pack sp300 (in passenger compartment, on left frame rail, near left side of driver's seat)
• Stage 1
• Stage 2
• Underhood fuse block (at right front of engine compartment)

TRANSMISSION

3.2L VIN N

3.2L VIN N, A/T Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for 3.2L VIN N, A/T Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• 1-2 shift sol
• 1-2 shift sol vlv
• 2-3 shift sol
• 2-3 shift sol vlv
• 4-5 shift sol
• 4-5 shift sol vlv
• A/t iss hi sig
• A/t iss lo sig
• Acc volt
• Anti-lock brakes system
• Bas rly ctrl
• Battery
• Ecm/tcm fuse 10a
• G100 (left rear side of eng
• G104 (on right body rail, near right headlamp)
• Ground
• Hot at all times
• Hot in run or start
• Ign 1 relay
• Ign volt
• Oss sens high
• Oss sens low
• Pc sol vlv hi ctrl
• Pc sol vlv lo ctrl
• Pnk
• Pressure control solenoid
• R43
• R44
• R45
• R46
• Red
• Ser data (can) +
• Ser data (can) -
• Serial data
• Sol pwr feed
• Tan
• Tcc sol valve
• Tcc sol vlv ctrl
• Tcm/ ipc fuse 15a
• Tft sens lo ref
• Tft sens sig
• Theft fuse 7.5a
• Transmission
• Transmission control module (tcm) (at right front side of engine compt)
• Transmission fluid temperature sensor
• Transmission input shaft speed sensor
• Transmission output shaft speed sensor
• Trs sig a
• Trs sig b
• Trs sig c
• Trs sig p
• Under- hood fuse block (right front of eng compt)

3.2L VIN N, A/T Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for 3.2L VIN N, A/T Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (can) +
• (can) -
• (left rear side of eng)
• A11
• A12
• A13
• A14
• B12
• Dash integration module (under right side of dash, about right closeout/ insulator panel)
• Data link connector (dlc) (partial) (under left side of dash)
• E10
• Elec prndl fuse 10a
• Electronic brake control module (at right front corner of eng compt)
• Electronic prndl
• Engine control module (ecm) (front of right valve cover)
• G100
• G201 (behind right kick panel)
• Hot when mini accessory relay energized
• Hvac control module (behind center of dash, below radio)
• Inflatable restraint sensing & diagnostic module (under center console)
• Instrument panel cluster
• P/n
• P/n sig
• Radio
• Rear integration module (under package shelf trim panel)
• S114 (in engine harn, 26 cm from starter motor connector)
• Ser data
• Serial data
• Serial data
• Service transmission trans hot idle engine
• Splice pack sp 200 (under dash, above steering column)
• Splice pack sp 300 (in passenger compt, near left side of driver seat)
• Splice pack sp 303 (in passenger compt, near right rear fuse block)
• Transmission
• Transmission internal mode switch
• Trs sig a
• Trs sig b
• Trs sig c
• Trs sig p
• Under- hood fuse block (right front of eng compt)

3.2L VIN N, M/T Wiring Diagram for Cadillac CTS 2004

List of elements for 3.2L VIN N, M/T Wiring Diagram for Cadillac CTS 2004:

• (in eng harn, 45 cm from underhood fuse block)
• (under dash, above steering column) sp200
• Backup lamp switch
• Ccp switch
• Class 2 data
• Clutch pedal position switch (on clutch pedal bracket)
• Computer data lines system
• Engine control module (ecm) (front of right valve cover)
• Engine controls system
• G100 (left rear side of eng)
• G104 (on right body rail, near right headlamp)
• Hot at all times
• Hot in run or start
• Htr/vlv clutch fuse 10a
• Ign 1 relay
• Main relay
• Pnk
• R43
• R44
• R45
• R46
• R48
• R49
• R63
• R64
• R65
• R66
• Rear integration module (rim) (under package shelf trim panel)
• Rev sw sig
• S132
• Start rly ctrl
• Start rly volt
• Starter fuse 30a
• Starter relay
• Starting/ charging system
• Tos fuse 10a
• Under- hood fuse block (right front of eng compt)
• Vehicle speed sensor (on right rear of transmission)
• Vss sig

3.6L VIN 7

3.6L VIN 7, A/T Wiring Diagram (1 of 2) for Cadillac CTS 2004

List of elements for 3.6L VIN 7, A/T Wiring Diagram (1 of 2) for Cadillac CTS 2004:

• (partial) (under left side of dash)
• 1-2 shift sol
• 1-2 shift sol vlv
• 2-3 shift sol
• 2-3 shift sol vlv
• 4-5 shift sol
• 4-5 shift sol vlv
• A/t iss hi sig
• A/t iss lo sig
• Acc volt
• Anti-lock brakes system
• Bas rly ctrl
• Battery
• Data link connector
• Ecm/tcm fuse 10a
• G104 (on right body rail, near right headlamp)
• G132 (front of right cylinder head)
• Ground
• Hi spd gmlan +
• Hi spd gmlan 2
• Hot at all times
• Hot in run or start
• Ign 1 relay
• Ign volt
• Oss sens high
• Oss sens low
• Pc sol vlv hi ctrl
• Pc sol vlv lo ctrl
• Pnk
• Pressure control solenoid
• R43
• R44
• R45
• R46
• Red
• Ser data (can) +
• Ser data (can) -
• Sol pwr feed
• Tan
• Tcc sol valve
• Tcc sol vlv ctrl
• Tcm/ ipc fuse 15a
• Tft sens lo ref
• Tft sens sig
• Theft fuse 7.5a
• Transmission
• Transmission control module (tcm) (at right front side of engine compt)
• Transmission fluid temperature sensor
• Transmission input shaft speed sensor
• Transmission output shaft speed sensor
• Trs sig a
• Trs sig b
• Trs sig c
• Trs sig p
• Under- hood fuse block (right front of eng compt)

3.6L VIN 7, A/T Wiring Diagram (2 of 2) for Cadillac CTS 2004

List of elements for 3.6L VIN 7, A/T Wiring Diagram (2 of 2) for Cadillac CTS 2004:

• (front of right cylinder head)
• A11
• A12
• A13
• A14
• B12
• Dash integration module (under right side of dash, about right closeout/ insulator panel)
• E10
• Elec prndl fuse 10a
• Electronic brake control module (at right front corner of eng compt)
• Electronic prndl
• Engine control module (ecm) (front of right valve cover)
• G132
• G201 (behind right kick panel)
• Hi spd gmlan +
• Hi spd gmlan -
• Hot when mini accessory relay energized
• Hvac control module (behind center of dash, below radio)
• Inflatable restraint sensing & diagnostic module (under center console)
• Instrument panel cluster
• P/n
• P/n sig
• Radio
• Rear integration module (under package shelf trim panel)
• S154 (in eng harn, 18 cm from tcm connector)
• Serial data
• Serial data
• Service transmission trans hot idle engine
• Splice pack sp 200 (under dash, above steering column)
• Splice pack sp 300 (in passenger compt, near left side of driver seat)
• Splice pack sp 303 (in passenger compt, near right rear fuse block)
• Transmission
• Transmission internal mode switch
• Trs sig a
• Trs sig b
• Trs sig c
• Trs sig p
• Under- hood fuse block (right front of eng compt)

5.7L VIN P

5.7L VIN P, M/T Wiring Diagram for Cadillac CTS 2004

List of elements for 5.7L VIN P, M/T Wiring Diagram for Cadillac CTS 2004:

• +5v ref
• 5v ref
• Ccp switch
• Clutch pedal position switch (on clutch pedal bracket)
• G104 (on right body rail, near right head lamp)
• Heated oxygen sensors
• Hot at all times
• Hot in run or start
• Htr/vlv clutch fuse 10a
• Ign 1 relay
• Instrument cluster
• Low ref
• Main relay
• Main rly ctrl
• Pnk
• Powertrain control module (ecm) (behind right front fender)
• Pre o2/ cam fuse 15a
• R43
• R44
• R45
• R46
• R47
• R48
• R49
• R50
• R63
• R64
• R65
• R66
• Reverse lockout sol
• Reverse lockout solenoid (left rear of transmission)
• S170 (in eng harn, 15.5 cm from c101)
• Skip shift ind
• Skip shift ind ctrl
• Skip shift sol ctrl
• Skip shift solenoid (left side of transmission)
• Splice pack sp200 (in right front of passenger compt, under dash, above steering column)
• Start rly coil volt
• Start rly ctrl
• Starte rly coil ctrl
• Starter fuse 30a
• Starter relay
• Starting/ charging system
• Tan
• Throttle actuator control module (attached to pcm below battery)
• Throttle position sensor (on right side of throttle body)
• Tps no1 sig
• Tps no2 sig
• Transmission fluid temperature sensor (in transmission)
• Uart ser data
• Under- hood fuse block (right front of eng compt)
• Vehicle speed sensor (vss) (on left rear of transmission)
• Vss sig hi
• Vss sig lo

TRUNK, TAILGATE, FUEL DOOR

Trunk Release Wiring Diagram for Cadillac CTS 2004

List of elements for Trunk Release Wiring Diagram for Cadillac CTS 2004:

• (in left front door trim harness, 14.5 cm from ddsa) s502
• (not used)
• (rear of left rear shock tower) g402
• A12
• Computer data lines system
• Door locks system
• Driver door module (on left door, under door trim)
• Driver door switch assembly (ddsa)
• Gnd
• Ground
• Hot at all times
• Interior lights system
• Joint connector
• Left rear fuse block (below left rear seat)
• R31
• R32
• R33
• R35
• Rear compartment lid ajar switch signal
• Rear compartment lid release actuator (center of rear compartment lid)
• Rear compartment lid release switch
• Rear integration module (under package shelf trim panel)
• Relay ctrl
• Release switch
• Right rear fuse block (below right rear seat)
• S20
• S21
• S23
• Serial data
• Switch signal
• Tan
• Trk dr rel sol relay micro
• Trunk diode
• Trunk door release fuse 10a

WARNING SYSTEMS

Warning Systems Wiring Diagram for Cadillac CTS 2004

List of elements for Warning Systems Wiring Diagram for Cadillac CTS 2004:

• (behind the left kick panel) g200
• A11
• A12
• Audio amplifier (left side of trunk)
• Auto
• B10
• B11
• Base
• Battery
• Check tire pressure, service monitor
• Class 2 (dim)
• Class 2 (sdm)
• Class 2 serial data
• Computer data lines system
• Dash integration module (under right side of dash, above right closeout/insulator panel)
• Dim/aldl fuse 10a
• Door ajar signal
• Door ajar sw signal
• Door open signal
• Driver door latch assembly
• Driver door module (on left door, under door trim)
• Driver seat belt switch
• Driver sig
• Fasten safety belt indicator
• G200 (behind the left kick panel)
• Gnd
• Ground
• Head
• Headlamps on sig
• Hot at all times
• Ignition key alarm switch (on steering column)
• Inflatable restraint sensing & diagnostic module (under center console)
• Instrument panel cluster (ipc)
• Key in ign sw sig
• Keyless entry/ tire pressure antenna signal
• Lf door sw sig
• Lights on indicator
• Logic
• Low ref
• Low tire pressure indicator
• Luxury
• Message center
• Nca
• Off
• Park
• Park lamp on sw sig
• Pnk
• Radio
• Radio antenna module (above headliner, near rear window)
• Rfa rear window antenna
• S200
• S201
• S205
• Serial data
• Tan
• Turn signal/multi-function switch
• Underhood fuse block (right front of engine compt)
• Volt check fuse 10a

WIPER/WASHER

Wiper/Washer Wiring Diagram for Cadillac CTS 2004

List of elements for Wiper/Washer Wiring Diagram for Cadillac CTS 2004:

• (near left front strut tower) g101
• Accy voltage
• Dash integration module (under right side of dash, above right closeout/insulator panel)
• Delay
• G101 (near left front strut tower)
• G104 (on right body rail, near right headlamp)
• Ground
• Hdlp wash circuit breaker 30a
• Hdlp wash relay
• Headlamp washer fluid pump
• Headlamp washer gnd
• Hot at all times
• Hot in run or start
• Hot w/ accessory relay energized
• Ign 1 relay
• Int
• Left heated washer nozzle
• Lo d5
• Logic
• Mist
• Nca
• Off
• Off d1
• Pnk
• R43
• R44
• R45
• R46
• R67
• R68
• R69
• R70
• R71
• Right heated washer nozzle
• S204 (w/ headlamp washer) (in the i/p harness, 37 cm from c103)
• Sp200 (in right front of passenger compartment, under dash, above steering column)
• Tan
• Underhood fuse block (right front of engine compartment)
• Underhood fuse block (right front of engine compt)
• Wash
• Wash noz fuse 10a
• Washer fluid level signal
• Washer pump ctrl
• Washer switch signal
• Windshield washer fluid level switch (at base of washer fluid reservoir)
• Windshield washer fluid pump (at base of washer fluid reservoir)
• Windshield wiper/ washer module (at left rear of engine compartment, near windshield)
• Windshield wiper/washer switch
• Wiper mtr high speed
• Wiper sw on signal
• Wiper sw signal 1
• Wiper sw signal 2
• Wiper switch
• Wpr mod fuse 30a
• Wpr sw fuse 10a