Diagram sections — 31 (70 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS NAVIGATION POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING
1.4L VIN B 1.4L VIN B, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for 1.4L VIN B, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 72 (behind radiator) cooling fan motor (left rear of engine compt) g102 (not used) (on blower motor) blower motor resistor (under center console) g301 (under center console) g302 A/c A/c compressor clutch (lower left front of engine) A/c compressor clutch relay A/c on ind A/c request sig Ac clutch fuse 31 10a Auxiliary a/c Auxiliary a/c request ind sig Bi-lev Blower fuse 7 40a Blower motor (under right side of dash) Blower speed feedback sig Body control module (left end of dash) Coil fuse 45 20a Computer data lines system Cool fan k4 fuse 32 30a Cool fan k5 fuse 33 40a Cooling fan high speed relay Cooling fan low speed relay Cooling fan medium speed relay Def Defogger system Defrost/heater mode valve position sens sig Defrost/htr mode Evap core temp Evap core temp sensor sig Floor Fresh air ind Fuse 40a G100 (left front corner of engine compt) G104 (rear of cylinder bank) Gnd High speed gmlan Hot at all times Hot w/ engine controls ignition relay energized Hvac control module Ind dimming ctrl Interior lights system J122 J127 J139 J202 J336 Led backlight dimming ctrl Logic Low reference Low speed gmlan serial data Max a/c Mix-blend Mode switch Off Rear defog relay ctrl Rear defogger ind Run ignition 3 voltage Run rly coil ctrl Sensor sig Serial data (+) (1) high speed gmlan Underhood fuse block (next to left front strut tower) Valve pos sens sig Vent Ventilating fan switch X1 serial data (-) (1) X2 feedback sig blower speed X202 X6 low reference X7 request ind sig 1.4L VIN B, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for 1.4L VIN B, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 51 (bottom of hvac module) (left side of engine compt) engine control module (pedal position sensors accelerator & brake 6 cm left of breakout to) 5 volt reference A/c compressor clutch relay ctrl A/c evaporator temperature sensor (left side of hvac) A/c refrigerant pressure sensor (rear of a/c compressor) A/c refrigerant pressure sensor sig Ac on switch Air inter door actuator Ambient air temperature sensor (right side of front grille) Blower motor relay Computer data lines system Cooling fan relay Cooling fan speed control relay Driver information center display Engine coolant temperature sensor 1 (rear of engine block) Engine coolant temperature sensor 2 (lower right side of radiator) Evap core temp sen low reference Evap core temp sensor sig G100 (left front corner of engine compt) G301 (under center console) Hi speed cooling fan relay ctrl High speed gmlan serial data (+) (1) High speed gmlan serial data (-) (1) Hot at all times Hvac control module Hvac fuse 10a Hvac fuse 18 10a Instrument cluster Instrument panel fuse block (left end of dash) J130 J131 J224 J236 Lo speed cooling fan relay ctrl Logic Low reference Low reference coolant temp Low speed gmlan serial data Open recirculation door ctrl Out side ambient air temp sens sig Out side ambient temp sens sig low ref Recirculation ind Sensor 2 sig coolant temp Sensor sig coolant temp Underhood relay block X100 X101 X105 X202
1.8L VIN H 1.8L VIN H, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for 1.8L VIN H, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 68 (behind radiator) cooling fan motor (left rear of engine compt) g102 (not used) (on blower motor) blower motor resistor (under center console) g301 (under center console) g302 A/c A/c compressor clutch (lower left front of engine) A/c compressor clutch relay A/c on ind A/c request sig Ac clutch fuse 31 10a Auxiliary a/c Auxiliary a/c request ind sig Bi-lev Blower fuse 7 40a Blower motor (under right side of dash) Blower speed feedback sig Body control module (left end of dash) Coil fuse 45 20a Computer data lines system Cool fan k4 fuse 32 30a Cool fan k5 fuse 33 40a Cooling fan high speed relay Cooling fan low speed relay Def Defogger system Defrost/heater mode Defrost/heater mode valve position sens sig Evap core temp Evap core temp sensor sig Floor Fresh air ind G100 (left front corner of engine compt) G104 (lower right rear of engine) Gnd High speed gmlan Hot at all times Hot w/ engine controls ignition relay energized Hvac control module Ind dimming ctrl Interior lights system J122 J202 J336 Led backlight dimming ctrl Logic Low reference Low speed gmlan serial data Max a/c Mix-blend Mode switch Off Rear defog relay ctrl Rear defogger ind Run ignition 3 voltage Run relay coil ctrl Sensor sig Serial data (+) (1) high speed gmlan Underhood fuse block (next to left front strut tower) Valve post sens sig Vent Ventilating fan switch X1 serial data (-) (1) X2 feedback sig blower speed X202 X6 low reference X7 request ind sig 1.8L VIN H, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for 1.8L VIN H, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 43 (pedal position sensors accelerator & brake 6 cm left of breakout to) 5 volt reference A/c compressor clutch relay ctrl A/c evaporator temperature sensor (left side of hvac) A/c refrigerant pressure sensor (rear of a/c compressor) A/c refrigerant pressure sensor sig Ac on switch Air inter door actuator (upper right side of hvac) Ambient air temperature sensor (right side of front grille) Blower motor relay Computer data lines system Driver information center display Engine control module (left side of engine compt) Engine coolant temperature sensor 1 (rear of engine block) Engine coolant temperature sensor 2 (lower right side of radiator) Evap core temp sen low reference Evap core temp sensor sig G301 (under center console) Hi speed cooling fan relay ctrl High speed gmlan serial data (+) (1) High speed gmlan serial data (-) (1) Hot at all times Hvac control module Hvac fuse 18 10a Hvac fuse 32 10a Instrument cluster Instrument panel fuse block (left end of dash) J224 J236 Lo speed cooling fan relay ctrl Logic Low reference Low speed gmlan serial data Open recirculation door ctrl Out side ambient air temp sens sig Out side ambient temp sens sig low ref Recirculation ind Sensor 2 sig coolant temp Sensor sig coolant temp X100 X101 X105 X202
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for Anti-lock Brakes Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 34 Abs pump fuse 40a Abs valve fuse 30a Brake pressure modulator Brk fluid lvl sw Computer data lines system Electronic brake control module (ebcm) (left rear of engine compt) G201 (left kick panel) G301 (under center console) Gmlan + Gmlan - Gmlan data(-) Gmlan- Gmland data(+) Gnd Hot at all times J200 (instrument panel 28cm right of break out to passenger air bag disable switch) J202 Left front wheel speed sensor (wss) (left front wheel hub assembly) Left rear wheel speed sensor (wss) (left rear wheel hub assembly) Lf whl sens Low ref Lr whl sens Multi-axis acceleration sensor (under rear of center console) Nca Rf whl sens Right rear wheel speed sensor (wss) (right rear wheel hub assembly) Rr whl sens Sens sply volt Serial data comm enable Steering wheel angle sensor (top of steering column) Suply Underhood fuse block (next to left front strut tower) Voltage X202 Anti-lock Brakes Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for Anti-lock Brakes Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 47 (top of brake pedal assembly) brake pedal position sensor 1.4l 1.8l A/t Abs ind Body control module (bcm) (left end of dash) Brake booster pump motor (lower left rear corner of engine compt) Brake booster vacuum switch (right side of engine compt) Brake fluid level switch (master cylinder assembly) Brake ind Brk pos scns 5v ref Brk position sens low Brk position sens sig Clutch pedal position sensor (on clutch pedal assembly) Clutch pos sens sig Clutch sens low ref Clutch sens volt ref Computer data lines system Driver information center (dic) display Engine control module (ecm) (left side of engine compt) Evp fuse 20a G103 (left front corner of engine compt) G301 (under center console) G303 (left kick panel) Gmlan data(+) Gmlan data(-) Hi spd gmlan serial data + Hi spd gmlan serial data - Hot at all times Hot w/ ign run relay eneryized Instrument cluster J128 J236 Logic Low ref M/t Multi-function center console switch Nca Park brake switch (base of park brake assembly) Prk brk sw Right front wheel speed sensor (wss) (right front wheel hub assembly) Rvc fuse 5a Traction control off switch Traction sw Underhood fuse block (next to left front strut tower) X101 X202
ANTI-THEFT Forced Entry Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for Forced Entry Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 80 & power mirrors (body harness, 10 cm left of breakout to park brake switch) j329 (center front of engine compt) hood ajar switch A (not used) Ambient light sensor (w/o electrical unauthorized entry theft deterrent) (top front center of dash) Batt positive volt Batt post volt Bcm 1 fuse 20a Bcm 5 fuse 25a Bcm 8 fuse 30a Body control module (left end of dash) Center console multi-function switch Child lockout ind Child security lock ind Child security lock motor status sig lr Child security lock motor status sig rr Child security lock rly ctrl Child security lock sw sig Child security lock switch Computer data lines system Door lock actuator lock ctrl Door lock actuator lock ctrl 2 Dr lock actuator unlock ctrl Driver door latch assembly Driver door lock sw lock sig Driver door lock switch Exterior lights system G101 (right front of engine compt) G301 (under center console) G302 (under center console) G303 (left kick panel) G401 (left "c" pillar) Gnd Ground distribution system Hatchback Headlights system Hood ajar sw sig Horn relay ctrl Horns system Hot at all times Ind dimming ctrl Instrument panel fuse block (left end of dash) Interior lights system J202 J236 J300 J327 J500 J900 Lf rr door ajar sw sig Lh frt door ajar sw sig Lh gate ajar sw sig 1 Lh hdlp low beam suply volt Lh park lamp suply volt Liftgate latch Network 3 Notchback Rear compartment lid latch Remote control door lock receiver (front center of dash) Rfa rec sig Rfa ret Rfa sply vol Rfa sply volt Rfa trans sig Rh frt door ajar sw sig Rh hdlp low beam suply volt Rh park lamp suply volt Rr child security lock mtr status sig Security indicator ctrl Sw unlock sig Up/down W/ express W/ power window W/o express W/o power window X100 X200 X208 X500 X900 Forced Entry Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for Forced Entry Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 29 (right "c" pillar) g400 Computer data lines system Door lock security relay Driver information center display Driver window motor G102 (left rear of engine compt) G304 (right kick panel) G401 (left "c" pillar) Instrument cluster J139 J322 J328 (body harness, 15 cm left of breakout to park brake switch) J334 J335 J600 J704 J803 Left rear door latch assembly Lf dr ajar sw sig Lo spd serial data Logic Network bus 3 Passenger door latch assembly Right rear door latch assembly Security indicator Underhood fuse block (next to left front strut tower) X600 X700 X800 Pass-Key Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Pass-Key Wiring Diagram for Chevrolet Sonic LT 2012: 29 (center front of engine compt) hood ajar switch 1.4l 1.8l A (not used) Batt positive volt Bcm fuse 1 20a Body control module (left end of dash) Computer data lines system Driver information center display Engine control module (left side of engine compt) G101 (right front of engine compt) G303 (left kick panel) Gnd Hi spd gmlan (+) 1 Hi spd gmlan (-) 1 Hood ajar sw sig Hot at all times Immobilizer control module (near ignition cylinder) Immobilizer ret Immobilizer sply volt Instrument cluster Instrument panel fuse block (left end of dash) J327 Lo spd gmlan Lo spd serial data Logic Network bus 11 Security indicator X100
BODY CONTROL MODULES Body Control Modules Wiring Diagram (1 of 3) for Chevrolet Sonic LT 2012 List of elements for Body Control Modules Wiring Diagram (1 of 3) for Chevrolet Sonic LT 2012: 61 (under center console) (under center console) g302 A/c request sig Air conditioning system Ambient light sensor signal Anti-lock brakes system Anti-theft & door locks systems Battery positive volt Bcm-1 fuse 20a Bcm-2 fuse 20a Bcm-3 fuse 30a Bcm-4 fuse 30a Bcm-5 fuse 25a Bcm-8 fuse 30a Blwr spd feedback sig Body control module (left end of dash) Child security lock sw sig Computer data lines system Cruise control & exterior lights systems Defogger system Defrost/heater mode valve post sens sig Door locks & anti-theft systems Driver dr lk sw lock sig Driver dr lk sw unlock sig Exterior lights & cruise control systems Exterior lights system G302 Ground Hazard led dim sig Hazard switch signal Headlamp sw on sig Headlamp sw park lamps sig Headlamps off sig ctrl Headlights & exterior lights systems Headlights system Hi spd gmlan serial data(+) Hi spd gmlan serial data(-) High speed gmlan + High speed gmlan - Hot at all times Indicator dimming control Instrument panel fuse block (left end of dash) Interior lights & exterior lights systems Interior lights system Led backlight dimming ctrl Lighting ctrl sw sig Low ref Low reference Low spd gmlan serial data Rear def ind supp volt Rear wind wash relay con Rear wind wiper sw sig Remote function actr rtn Remote function actuator receive sig Remote function actuator transmit signal Remote function sply volt Security ind ctrl Tap up/tap down sw Traction con sw sig Transmission system Wiper/washer system Body Control Modules Wiring Diagram (2 of 3) for Chevrolet Sonic LT 2012 List of elements for Body Control Modules Wiring Diagram (2 of 3) for Chevrolet Sonic LT 2012: 79 (info not available) Accessory wakeup serial data Air conditioning system Anti-theft & door locks systems Battery Battery positive voltage Bcm-6 fuse 20a Bcm-7 fuse 20a Body control module (left end of dash) Child security lock relay ctrl Chmsl sply volt Computer data lines system Cruise control system Cruise/etc/tcc brake signal Current sensor signal Current sensor sply voltage Defogger system Door lock ctrl Door lock system & anti-theft systems Door locks & anti-theft systems Door locks system & anti-theft systems Dr lck actuator unlock ctrl Dr lock actuator lock ctrl 2 Drv door lk status ind sply vol Endgate latch relay coil ctrl Endgate latch rly sply vol Exterior Exterior lights system Fog lamp relay ctrl Front windshield wiper sw sig Fuse 5a G105 (left front of engine compt) G303 (left kick panel) Gmlan data + Gmlan data - Ground Headlamp high beam rly ctrl Headlights system High speed gmlan serial data(+) High speed gmlan serial data(-) Hood ajar switch signal Horn rly ctrl Horns system Hot at all times Instrument panel fuse block (left end of dash) Instrument panel lp dimming ctrl Interconnect network bus 3 Interior lights system J327 Left front door ajar sw sig Left rear door ajar sw sig Lf turn sig lamp sply volt Liftgate ajar switch sig(1) Lights system Low ref Low reference Lr turn sig lamp sply volt Lt hdlp low beam sply volt Power distribution system Rear closure handle sw open sig Rear defog relay ctrl Rear license lamp sply volt Rear wiper motor relay coil ctrl Relay coil control Rf turn sig lp sply volt Right front door ajar sw sig Right rear park lamp sply volt Rr turn sig lp sply volt Rt hdlp low beam sply volt Run relay coil ctrl Serial data comm enable Starting/charging system Trunk, tailgate, fuel doors system Underhood fuse block (next to left front strut tower) Windshield washer relay ctrl Windshield wiper mtr park sw sig Windshield wiper mtr sply vol Wiper/washer system X202 Body Control Modules Wiring Diagram (3 of 3) for Chevrolet Sonic LT 2012 List of elements for Body Control Modules Wiring Diagram (3 of 3) for Chevrolet Sonic LT 2012: 59 (info not available) A/c request ind sig Acc Accessory voltage Air conditioning system Anti-theft & door locks systems Anti-theft system Anti-theft system headlights & cruise control systems Backup lamp sply volt Body control module (left end of dash) Computer data lines system Cruise control sw sig Cruise control system Door locks & anti-theft systems Evap core temperature Exterior lights system Hdlp dimmer sw hi beam sig Hdlp sw flash to pass sig Headlights system Horn switch signal Horns system Hot at all times Ignition 1 voltage Ignition key resister sig Ignition switch Immobilizer return Immobilizer sply volt Inadvertent power ctrl Instrument cluster & anti lock brakes systems Inter connect network bus 11 Interior lamp ctrl Interior lights system Interior lights, door locks & anti-theft systems Lf turn signal sw sig Low reference Low spd gmlan serial data Lr child security mtr lock status sig Off Off/run /crank volt Park brk sw sig Park lock solenoid ctrl Power distribution system Rap relay coil control Rear defog sw Right turn signal sw sig Rr child security mtr lock status sig courtesy lamp sw sig Rr dr ajar sw sig Run Sens sig Shift interlock system Sound systems Start Steering wheel ladder sig 1 Sw ref Trunk lamp control Windshield washer sw sig Windshield wiper sw hi sig Windshield wiper sw low sig Wiper/washer system
COMPUTER DATA LINES Computer Data Lines Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for Computer Data Lines Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 48 (body harness, 5 cm behind breakout to driver's seat belt retractor pretensioner) (w/ front seat heater) j325 (not used) A/t Acc Accessory volt Accessory wakeup Body control module (left end of dash) D11 Data link connector (dlc) (under left side of dash) Dlc fuse 15a Driver window motor Fuel pump control module (hatchback: base of right "c" pillar) (notchback: right side of luggage compt) G301 (under center console) Hi spd gmlan (+) Hi spd gmlan (-) High speed gmlan High speed gmlan (+) High speed gmlan (-) High speed gmlan 1(+) High speed gmlan 1(-) Hot at all times Hvac control module Ignition switch Immobilizer control module (near ignition cylinder) Inflatable restraint sensing & diagnostic module (sdm) (under front of center console) Instrument cluster Instrument panel fuse block (left end of dash) J202 J236 J326 (body harness, 16 cm before breakout to front seats) Lin bus ii Low speed gmlan Low speed gmlan serial data M/t Network bus 3 Off Passenger presence detection module Radio Run Seat heating control module (w/ front seat heater) (under front of driver's seat) Serial data comm enable Splice pack jx203 Start Underhood fuse block (next to left front strut tower) X202 X301 X302 X500 Computer Data Lines Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for Computer Data Lines Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 30 (1.4l) x1 (left center of dash) splice pack jx202 (left rear of engine compt) electronic brake control module (not used) (top of steering column) steering wheel angle sensor (under rear of center console) multi-axis acceleration sensor A/t Acc wakeup ser data Automatic transmission assembly Control solenoid valve assembly Engine control module (left side of engine compt) Hi spd gmlan data (+) Hi spd gmlan data (-) Hi spd gmlan data 1(+) Hi spd gmlan data 1(-) Hi spd gmlan data 2(+) Hi spd gmlan data 2(-) Hi spd gmlan data 2+) J216 (instrument panel harness, 6.5 cm right of breakout to passenger air bag disable switch) Low speed gmlan serial data M/t Plant abs data connector assembly Power steering control module (on steering column) Serial data comm enable Splice pack jx200 (right center of dash) Splice pack jx201 (right center of dash) Telematics communication interface control module (behind right side of dash) X1 (1.8l) X101 X202
COOLING FAN
1.4L VIN B 1.4L VIN B, Cooling Fan Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for 1.4L VIN B, Cooling Fan Wiring Diagram for Chevrolet Sonic LT 2012: 33 (not used) Coil fuse 45 20a Computer data lines system Cool fan k4 fuse 32 30a Cool fan k5 fuse 40a Coolant temp sensor 2 sig Coolant temperature sensor low reference engine control module (left side of engine compt) Coolant temperature sensor signal Cooling fan high speed relay Cooling fan low speed relay Cooling fan medium speed relay Cooling fan motor (behind radiator) Cooling fan relay Cooling fan speed control relay Engine coolant temperature sensor 1 (rear of engine block) Engine coolant temperature sensor 2 (lower right side of radiator) Fan relay ctrl hi speed cooling Fan relay ctrl lo speed cooling Fuse 40a G100 (left front corner of engine compt) High speed gmlan serial data (+) (1) High speed gmlan serial data (-) (1) Hot at all times Hot w/ engine controls ignition relay energized J127 J130 J131 J139 (left rear of engine compt) g102 Low reference Underhood fuse block (next to left front strut tower) Underhood relay block X100 X101
1.8L VIN H 1.8L VIN H, Cooling Fan Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for 1.8L VIN H, Cooling Fan Wiring Diagram for Chevrolet Sonic LT 2012: 26 (behind radiator) cooling fan motor (left rear of engine compt) g102 (not used) Coil fuse 45 20a Cool fan k4 fuse 32 30a Cool fan k5 fuse 33 40a Coolant temp sensor 2 sig Coolant temp sensor sig Cooling fan high speed relay Cooling fan low speed relay Engine control module (left side of engine compt) Engine coolant temperature sensor 1 (rear of engine block) Engine coolant temperature sensor 2 (lower right side of radiator) Fan relay ctrl hi speed cooling Fan relay ctrl lo speed cooling G100 (left front corner of engine compt) High speed gmlan serial data (+) (1) Hot at all times Hot w/ engine controls ignition relay energized J139 Low reference Serial data (-) (1) high speed gmlan System data lines computer Underhood fuse block (next to left front strut tower) X100 X101
CRUISE CONTROL Cruise Control Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Cruise Control Wiring Diagram for Chevrolet Sonic LT 2012: 85 (instrument panel harness, 2.5 cm right of breakout to body control module) j212 (or 6109) (or 6110) (or 6111) (top of steering column) steering wheel air bag coil 1.4l 1.8l 5 speed manual transmission 5 volt ref 5-v ref 6 speed manual transmission A/t Accelerator pedal position (app) sensor (top of accelerator pedal assembly) App sen 1 sig App sens 2 sig Automatic transmission assembly Batt pos vol Body control module (left end of dash) Brake pedal position sensor (top of brake pedal assembly) Brk aply sens sig Brk pos sens sig clutch volt ref brk pos sens 5v ref Brk sig hi spd gmlan data (-) hi spd gmlan data (+) Cancel Clutch low ref brk pos sens low ref Clutch pedal position sensor (on clutch pedal assembly) Clutch pedal position switch (top of clutch pedal assembly) Clutch sensor signal Computer data lines system Control solenoid valve assembly Cpp sw sig Cruise ctrl sw sig Cruise ind Cruise switch Cruise/etc/tcc/ brk sig Cruise/etc/tcc/ brk sig x5 Driver information center display Engine control module (ecm) (left side of engine compt) Fuse 10a Fuse 15a Fuse 7.5a G104 (1.4l: rear of cylinder bank) (1.8l: lower right rear of engine) G301 (under center console) Gmlan serial data Gnd Ground Hot at all times Hot w/ ignition run relay relay energized Instrument cluster Instrument panel fuse block (left end of dash) Interior lights system Iss hi sig Iss lo sig J100 (a/t) (engine harness, 4 cm from breakout to purge solenoid valve) J202 Left steering wheel controls switch Lighting ctrl sw ref Logic Low ref M/t Oss hi sig Oss lo sig Oss low ref Oss sig Oss suply Res+ Ser data bus+ Ser data bus- Serial data bus + Serial data bus - Set- Sound systems Tac mtr ctrl clse Tac mtr ctrl opn Throttle body (right front of engine, on intake manifold) Tp sen 2 sig Tp sen 5 volt ref Tp sen low ref Tp sen sig 1 Transmission control module Transmission input shaft speed sensor Transmission output shaft speed sensor Transmission output shaft speed sensor (m/t) (in automatic transmission) Underhood fuse block (next to left front strut tower) X101 X202
DEFOGGERS Defoggers Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Defoggers Wiring Diagram for Chevrolet Sonic LT 2012: 39 (body harness, 110 cm before breakout to electronic brake control module) j141 (hatchback) B10 B11 Battery fuse block (next to left front strut tower) Body control module (left end of dash) Computer data lines system Defog relay ctrl Driver outside rear view mirror (if equipped) Driver outside rear view mirror glass Fuse 150a G102 (left rear of engine compt) G303 (left kick panel) G304 (right kick panel) G401 (left "c" pillar) Hot at all times Hvac control module J139 J334 J500 J600 Logic Nca Network bus 3 Osrvm htd fuse 15a Passenger outside rear view mirror (if equipped) Passenger outside rear view mirror glass Rear defogger ind Rear defogger relay Rear defogger switch Rear wdw defog fuse 30a Rear window defogger grid Serial data Underhood fuse block (next to left front strut tower) X2 b1 X202 X500 X600 X900
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Electronic Power Steering Wiring Diagram for Chevrolet Sonic LT 2012: 28 (instrument panel harness, 28 cm right of breakout to passenger air bag disable switch) j200 (not used) Anti-lock brakes system Batt positive volt Battery fuse block (next to left front strut tower) Comb veh int sens sply volt Computer data lines system Driver information center display Electronic brake control module (left rear of engine compt) Fuse 1 80a G301 (under center console) G307 (left kick panel) Ground Hi spd gmlan serial data (+) 1 Hi spd gmlan serial data (+) 2 Hi spd gmlan serial data (-) 1 Hi spd gmlan serial data (-) 2 Hot at all times Instrument cluster J202 Logic Low spd gmlan serial data Power steering control module (on steering column) Power steering warning light ind Serial data comm enable Steering wheel angle sensor (top of steering column) X201 X202
ENGINE PERFORMANCE
1.4L VIN B 1.4L VIN B, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Sonic LT 2012 List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Sonic LT 2012: 36 (in automatic transmission) (m/t) transmission output shaft speed sensor (top of fuel tank) fuel tank pressure sensor 5 volt ref 5volt ref Absolt press sens sig Clutch pedal pressure sensor (m/t) (on clutch pedal assembly) Computer data lines system Eng coolant temp sens sig Engine control module (ecm) (left side of engine compt) Engine coolant temperature (ect) sensor 1 (left front of engine) Evap canister pur sol ctrl Exterior lights system Fuel tank press sens sig Generator field duty cycle sig Ho2s high sig bank 1 sens 2 Ho2s htr hi ctrl bank1 sens2 Ho2s low sig bank 1 sens 2 Instrument cluster Instrument cluster system Intake manifold tuning solenoid valve (right rear of engine) Lo spd gmlan serial data Logic Low ref Malfunction ind Manifold absolute pressure sensor (right rear of engine in intake manifold) Output spd digital sig Overrun air valve sol Primary fuel lvl sens sig Reverse sw sig Sens sig Starting/charging system Turbocharger bypass solenoid valve Waste gate sol ctrl X101 X202 X401 1.4L VIN B, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Sonic LT 2012 List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Sonic LT 2012: 15 (exhaust manifold) heated oxygen sensor 1 (exhaust, downstream of catalytic converter) heated oxygen sensor 2 (right side of engine) evaporative emission purge solenoid valve (right side of fuel tank) evaporative emission vent solenoid valve Accelerator pedal position (app) sensor (top of accelerator pedal assembly) Engine coolant temperature (ect) sensor 2 (rear of engine block) Exhaust camshaft position actuator solenoid valve (left front of engine) G104 (rear of cylinder bank) Intake camshaft position actuator solenoid valve (right front of engine) Multifunction intake air sensor (after air cleaner) Nca X100 X101 X202 X401 1.4L VIN B, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Sonic LT 2012 List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Sonic LT 2012: 57 5 volt ref A/c compr clth rly ctrl A/c rfgt pr sens sig Acc pedal pos sig 1 Acc pedal pos sig 2 Charge ind ctrl Check engine ind ctrl Cooling fans system Cruise control system Cruise/etc/tcc brk sig D10 Ecm 1 fuse 10a Ecm 2 fuse 20a Ecm 3 fuse 10a Ecm 4 fuse 10a Ecm fuse 15a Ecm/tcm fuse 10a Engine control module (ecm) (left side of engine compt) Engine controls ignition relay Evap canstr vent ctrl Fans system cooling Flux fuel fuse 10a Fscm 1 fuse 20a High speed relay ctrl Hot at all times Hot w/ ign run relay energized Ign Injector fuse 15a Intake sens ctrl J117 J118 J12 J128 (a/t) J132 J133 Lines system computer data Low ref Low spd cooling Mas air flow sens sig Park netrl pos sw sig Powertrain rly ctrl Pre tr air temp pr sig Pres sens 5 v ref Press sens sig Primary rly ctrl Rvc fuse 10a Serial data + 1 Serial data - 1 Starting/charging system Startr enble rly ctrl System air conditioning Temp sens 2 sig Temp sens sig Transmissions system Underhood fuse block (next to left front strut tower) Underhood fuse block (next to left front x3 strut tower) Wakeup serial data 1.4L VIN B, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Sonic LT 2012 List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Sonic LT 2012: 34 (top of valve cover) ignition coil module (top right side of engine) fuel injectors Batt + Computer data lines system F sply 1 main rly pwrtn Fuel Fuel lin sens 5v ref Fuel press sens sig Fuel pump & level sensor assembly (top of fuel tank) Fuel pump control module (right side of luggage compt) Fuel pump ctrl Fuel pump rly ctrl G104 (rear of cylinder bank) G400 (right "c" pillar) Gnd Ground Hs gmlan + Hs gmlan - Ign ctrl 1 Ign ctrl 2 Ign ctrl 3 Ign ctrl 4 Ign volt J404 J405 J406 Low ref Nca Pump Serl data comm enbl Shield Tyrbocharger boost/intake air temperature sensor (attached to the air intake duct) Underhood fuse block (next to left front strut tower) X401 1.4L VIN B, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Sonic LT 2012 List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Sonic LT 2012: 6 A/c refrigerant pressure sensor (right radiator support) Crankshaft position sensor (lower right rear of engine) Exhaust camshaft position sensor (left front of cylinder head) Fuel pressure sensor (right side of engine in fuel feed line) Intake camshaft position sensor (right front of cylinder head) Knock sensor (right rear of engine block) 1.4L VIN B, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Sonic LT 2012 List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Sonic LT 2012: 38 (left front of engine) engine coolant thermostat heater 5 volt ref Camshaft cam w gnd Camshaft cam w sig Camshaft cam w sup volt Camshaft cam x gnd Camshaft cam x sig Camshaft cam x sup volt Camshaft phaser exhaust sol 1 Camshaft phaser intake sol 1 Crankshaft 60x sens sig Crankshaft 60x sens volt Engine control module (left rear of engine compt) Engine oil pressure switch Fuel inj ctrl 1 Fuel inj ctrl 2 Fuel inj ctrl 3 Fuel inj ctrl 4 G104 (rear of cylinder bank) Ground Ho2s high sig bank 1 sens 1 Ho2s htr low ctrl bank 1 sens 1 Ho2s low sig bank 1 sens 1 Ign ctrl 1 Ign ctrl 2 Ign ctrl 3 Ign ctrl 4 Knock sensor sig 1 Low ref Oil press sw sig ctrl Powertrain main rly fuse sply 1 Thermostat engine cool ctrl Throttle actuator ctrl close Throttle actuator ctrl open Throttle body (on intake manifold, right front of engine) Throttle position sensor sig 1 Throttle position sensor sig 2 Turbo boost press sens temp sig
1.8L VIN H 1.8L VIN H, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Sonic LT 2012 List of elements for 1.8L VIN H, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Sonic LT 2012: 80 (left side of engine compt) engine control module (ecm) 5v ref A/c comp clutch rly ctrl A/c pressure sensor 5 v ref A/c refreg sens sig Acc pedal pos 5 v ref Acc pedal pos 5 volt Acc pedal pos low ref 1 Acc pedal pos low ref 2 Acc wakeup serial data Accelerator pedal pos sig 1 Accelerator pedal pos sig 2 Accelerator pedal position (app) sensor (top of accelerator pedal assembly) Air conditioning system Battery positive voltage Brk pos sens sig Check engine indicator ctrl Clutch pedal position switch (m/t) (top of clutch pedal assembly) Clutch sens volt ref Computer data Computer data lines system Coolant temp sens 2 low ref Coolant temp sensor 2 sig Cooling fans system Cruise control system Cruise/etc/tcc brake sig D10 Ecm 1 fuse 10a Ecm 2 fuse 20a Ecm 3 fuse 10a Ecm 4 fuse 10a Ecm fuse 15a Ecm/ tcm fuse 10a Engine controls ignition relay Evap canister vent solenoid Exterior lights system Flex fuel fuse 10a Fscm 1 fuse 20a Fuel level sensor low ref Fuel pump primary relay ctrl Fuel tank pressure (ftp) sensor (top of fuel tank) Fuel tank pressure sens sig G104 (lower right rear of of engine) High spd cooling fan rly ctrl High spd gmlan serial data (+) High spd gmlan serial data (-) Hot at all times Hot w/ ign run relay energized Injector fuse 15a Instrument cluster system Intake air temp sensor sig Intake air temperature sensor J117 J118 J12 J128 (a/t) J132 J303 Lines system Low spd cooling fan rly ctrl Mass air flow (maf)/intake air temperature sensor (intake, after air cleaner) Mass air flow sensor sig O/p spd sig Pnp sw park sig Powertrain main rly sply 1 Powertrain relay coil ctrl Pressure sens 5v ref Primary fuel level sens sig Reverse sw sig Run/crank ignition 1 voltage Rvc fuse 10a Sensor low ref Starter enable rly ctrl Starting/ charging system Thermostat engine cool ctrl Transmissions system Underhood fuse block (next to left front strut tower) X101 X202 X401 1.8L VIN H, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Sonic LT 2012 List of elements for 1.8L VIN H, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Sonic LT 2012: 39 (exhaust manifold) heated oxygen sensor 1 (exhaust, downstream of catalytic converter) heated oxygen sensor 2 (in automatic transmission) (m/t) transmission output shaft speed sensor (lower right side of radiator) engine coolant temperature sensor 2 (right rear of engine) intake manifold tuning solenoid valve (right side of fuel tank) evaporative emission vent solenoid valve 5v ref Computer data lines system Engine coolant thermostat heater (left rear of engine) Fuel Fuel pump & level sensor assembly (top of fuel tank) Fuel pump control module (base of right "c" pillar) Fuel pump ctrl G104 (lower right rear of engine) G400 (right "c" pillar) Gnd Hs gmlan + Hs gmlan - Ign Ign volt Instrument cluster J404 J405 J406 Lo spd gmlan serial data Logic Low ref Mal- function ind Nca Pump Relay ctrl Sens sig Serial data Shield Underhood fuse block (next to left front strut tower) X100 X101 X202 X401 1.8L VIN H, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Sonic LT 2012 List of elements for 1.8L VIN H, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Sonic LT 2012: 20 (rear of a/c compressor) a/c refrigerant pressure sensor (right front of engine) evaporative emission (evap) purge solenoid valve (right rear of engine) crankshaft position (ckp) sensor (top right side of engine) fuel injectors Engine coolant temperature (ect) sensor 1 (rear of engine block) F sply 1 pwrtn main rly Fuel pressure sensor (right side of engine in fuel feed line) G104 (lower right rear of engine) Ground Ign ctrl 1 Ign ctrl 2 Ign ctrl 3 Ign ctrl 4 Ignition coil (top of valve cover) J133 Knock sensor (lower right side of engine) Low ref Manifold absolute pressure sensor (right rear of engine, in intake manifold) Tan X160 1.8L VIN H, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Sonic LT 2012 List of elements for 1.8L VIN H, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Sonic LT 2012: 61 (left front of engine) (right front of engine) Cam phaser w return low Cam phaser x return low ref Camshaft phaser exhaust solenoid Camshaft phaser intake solenoid 1 Camshaft position exhaust sensor 1 Camshaft position intake sensor 1 Charge indicator control Clutch sw fuse 7.5a Coolant temp sensor 1 low ref Coolant temperature sens 1 sig Cpe sensor low ref 1 Cpi sensir sply volt 1 Cpi sensor low ref 1 Cps sensor sply vol Crankshaft 60x sensor low ref Crankshaft 60x sensor sig Crankshaft 60x sensor voltage Engine control module (ecm) (left side of engine compt) Engine oil pressure switch (lower left front of engine) Evap purge ctrl Exhaust camshaft position (cmp) actuator solenoid valve Exhaust camshaft position sensor (left rear of cylinder head) Fuel injector control 1 Fuel injector control 2 Fuel injector control 3 Fuel injector control 4 G104 (lower right rear of engine) Generator field duty cycle sig Ground Ho2s low sig bank 1 sens 1 Hos high sig bank 1 sensor 1 Hos high sig bank 1 sensor 2 Hos low sig bank 1 sensor 1 Hos low sig bank 1 sensor 2 Hot w/ ign run relay energized Ign ctrl 1 Ign ctrl 3 Ignition control 2 Ignition control 4 Imtv control sig Imtv position sig Instrument panel fuse block (left end of dash) Intake camshaft position (cmp) actuator solenoid valve Intake camshaft position sensor (right rear of cylinder head) Knock sensor low reference 1 Knock sensor sig 1 Low ref Map sensor 5v ref Map sensor low ref Map sensor sig Oil pressure switch sig Starting/ charging system Throttle actuator ctrl close Throttle actuator ctrl open Throttle body (right front of engine, on intake manifold) Throttle position sensor 5v ref Throttle position sensor low ref Throttle position sensor sig 1 Throttle position sensor sig 2
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Backup Lamps Wiring Diagram for Chevrolet Sonic LT 2012: 40 (body harness, 11 cm behind breakout to front seats) j317 (left side of transaxle) (m/t) backup lamp switch (under center console) g302 1.4l 1.8l Automatic transmission assembly Batt Body control module (left end of dash) Computer data lines system Control solenoid valve assembly Engine control module (ecm) (left side of engine compt) Fuse 5a G104 (1.4l: rear of cylinder bank) (1.8l: lower right rear of engine) G400 (right "c" pillar) G401 (left "c" pillar) Gnd Ground distribution system Hot at all times J110 J402 J403 Left backup lamp Left tail lamp assembly Low spd gmlan serial data x2 Park/neutral sig 1 Red Reverse sw sig Right backup lamp Right tail lamp assembly Serial data (+) 1 Serial data (-) 1 Sig a Sig b Sig c Sig p Trans- mission internal mode switch Transmission control module Underhood fuse block (next to left front strut tower) X405 X406 Exterior Lamps Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 55 (body harness, 3 cm (hatchback: license plate lamp harness, 24 cm fr0nt right license plate lamp) (notchback: license plate lamp harness, 21 cm fr0nt right license lamp) Auto Batt Bcm 5 fuse 25a Before breakout Body control module (left end of dash) Center high mounted stop lamp Chmsl sply volt Computer data lines system G101 (right front corner of engine compt) G301 (under center console) G302 (under center console) G401 (left "c" pillar) Ground Hatchback Haz sw left turn sig Haz sw right turn sig x3 Hazard led dimming sig Hazard sw sig Hazard warning switch Head Headlamp sw park lp sig Headlamp switch Hot at all times Instrument panel fuse block (left end of dash) J124 J236 J313 J314 J334 J900 J902 J903 Left license plate lamp Left prk lp sply volt Lf turn sig lp sply volt Low ref x1 Low spd gmlan ser data Lr turn sig lp sply volt Lt rr prk lmp sply volt Notchback Off Park Rf turn sig lp sply volt Right license plate lamp Right park/turn signal lamp Rr license lamp sply volt Rr prk lmp sply volt Rr turn sig lp sply volt Rt prk lmp sply volt To front seats) Underhood fuse block (next to left front strut tower) X900 X901 Exterior Lamps Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 57 (left side of engine compt) engine control module (ecm) (not used) (right "c" pillar) 1.4l 1.8l A/t Brake pedal position sensor (top of brake pedal assembly) Brk position sens 5 volt Brk position sens sig x1 Computer data lines system G100 (left front corner of engine compt) G301 (under center console) G400 G401 (left "c" pillar) Gnd Ground distribution system Hi spd gmlan Hi spd gmlan serial data (-) 1 Hot w/ ignition run relay energized Instrument cluster Instrument panel fuse block (left end of dash) Ipc-aos fuse 10a J123 J202 J236 J334 J335 J402 J403 J408 J409 Left Left park/turn signal lamp Left rear side marker lamp Left rear turn signal lamp Left tail lamp assembly Left tail/ stop lamp Left turn ind Logic Low refr M/t Power distribution system Red Right Right rear side marker lamp Right rear turn signal lamp Right tail lamp assembly Right tail/ stop lamp Right turn ind Run/crank ignition 1 volt Serial data Serial data (+) 1 Turn signal/ multi-function switch X101 X202 X405 X406
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 5) for Chevrolet Sonic LT 2012 List of elements for Ground Distribution Wiring Diagram (1 of 5) for Chevrolet Sonic LT 2012: 43 (1.4l) underhood relay block (if equipped) left front fog lamp (if equipped) passenger presence detection module (left front corner of engine compt) (right kick panel) (under center console) (w/ manual folding mirrors) passenger outside rearview mirror 1.4l 1.8l B x2 Battery Battery current sensor Body control module Cigarette lighter receptacle Cooling fan motor Cooling fan relay D x1 D x110 G100 G105 (left front of engine compt) G106 (left rear of engine block) G300 G302 G304 G307 (left kick panel) Horn Hvac control module Inflatable restraint sensing & diagnostic module J123 (forward lamp harness, 5 cm left of breakout to g100) J134 J336 (center console harness, 7.5 cm before breakout J600 (w/ manual folding mirrors) (passenger door harness, 14 cm before breakout to passenger window motor) Left high beam headlamp Left low beam headlamp Left park/ turn signal lamp Lfet headlamp Nca Passenger door latch assembly Power steering control module To g301) X201 X302 X600 Ground Distribution Wiring Diagram (2 of 5) for Chevrolet Sonic LT 2012 List of elements for Ground Distribution Wiring Diagram (2 of 5) for Chevrolet Sonic LT 2012: 33 (if equipped) driver knee air bag (if equipped) passenger knee air bag (if equipped) transmission shift lever (left end of dash) instrument panel fuse block (w/ automatic electronic cruise control) left steering wheel controls switch (w/ electrical unauthorized entry theft deterrent) ambient light sensor Accessory relay Blower motor relay Center console multi-function switch Data link connector Driver door lock switch G301 (under center console) Hazard warning switch Headlamp switch Horn switch Hvac control module Instrument cluster J202 (instrument panel harness, 6 cm above breakout to hazard & lock switch) J203 (instrument panel harness, 22.5 cm above breakout to hazard & lock switch) J222 (steering wheel harness, inside steering wheel) J236 (instrument panel harness, 20 cm left of breakout to accelerator & brake pedal position sensors) Multi- axis acceleration sensor Passenger air bag disable indicator Radio Right steering wheel controls switch Steering wheel air bag coil Steering wheel angle sensor Telematics communication interface control module Turn signal/ multi-function switch W/ vehicle communi- cation system W/o vehicle communi- cation system X210 X211 Ground Distribution Wiring Diagram (3 of 5) for Chevrolet Sonic LT 2012 List of elements for Ground Distribution Wiring Diagram (3 of 5) for Chevrolet Sonic LT 2012: 40 (hatchback) rear wiper motor (if equipped) right front fog lamp (right front of engine compt) (w/ electrical unauthorized entry theft deterrent hood ajar switch A x900 Center high mounted stop lamp D x120 G101 G401 (left "c" pillar) Hatchback J124 (forward lamp harness, 12 cm left of breakout to x120) J135 J334 (body harness, 12 cm left of breakout to x301) J402 J408 J900 (hatchback: liftgate harness, 4 cm left of breakout to x901) (notchback: decklid harness, 6 cm from breakout to rear compt lid latch) J903 (hatchback: license plate lamp harness, 29 cm from right license plate lamp) (notchback: license plate lamp harness, 26 cm from right license lamp) Left backup lamp Left license plate lamp Left rear door latch assembly Left rear side marker lamp Left rear turn signal lamp Left tail lamp assembly Left tail/stop lamp Liftgate latch Liftgate unlatch switch Notchback Rear compartment courtesy lamp Rear compartment lid latch Rear compartment lid unlatch switch (exterior) Rear defogger grid Right headlamp Right high beam headlamp Right license plate lamp Right low beam headlamp Right park/ turn signal lamp X405 d X700 X900 X901 Ground Distribution Wiring Diagram (4 of 5) for Chevrolet Sonic LT 2012 List of elements for Ground Distribution Wiring Diagram (4 of 5) for Chevrolet Sonic LT 2012: 51 (1.4l) multifunction intake air sensor (1.8l) mass air flow/intake air temperature sensor (1.8l: engine harness, 7 cm into plastic harness protector) (1.4l: engine harness, 5 cm into plastic harness protector) j122 (if equipped) (left end of dash) instrument panel fuse block (left kick panel) (manual a/c) a/c compressor clutch (next to left front strut tower) underhood fuse block (notchback) rear compartment lid unlatch relay (w/ manual folding mirrors) driver outside rearview mirror (w/ manual folding mirrors) outside rearview mirror switch (w/ power window) driver window motor 1.8l A x1 A/t Automatic a/c & m/t Automatic transmission assembly B3 x3 Backup lamp switch Body control module Brake fluid level switch Control solenoid valve assembly Driver door latch assembly Driver window switch Engine control module Front dome/ reading lamps G104 (1.4l: rear of cylinder bank) (1.8l: lower right rear of engine) G303 Ignition coil module Intake manifold tuning solenoid valve J110 (engine harness, at breakout to rear of engine) J302 (headliner harness, 7 cm left of breakout to sunroof switch) J327 (body harness, 11 cm behind breakout to g303) J500 (driver door harness, 5 cm into breakout to window switch) M/t Manual a/c & a/t Manual folding mirrors Nca Seat heating control module Starter relay Sunroof control module W/ electronic side door w/o power window & W/ interior roof lamp, courtesy & dual reading lamps W/ power window & manual folding mirrors W/ sunroof control W/o interior roof lamp, courtesy & dual reading lamps W/o sunroof control X202 X208 X301 X500 Ground Distribution Wiring Diagram (5 of 5) for Chevrolet Sonic LT 2012 List of elements for Ground Distribution Wiring Diagram (5 of 5) for Chevrolet Sonic LT 2012: 41 (hatchback) rear window washer pump relay (hatchback) rear wiper relay (left kick panel) (left rear of engine compt) (next to left front strut tower) underhood fuse block 1.4l 87a Assembly plant abs data connector Brake booster pump motor D x406 Door lock security relay Electronic brake control module Fuel pump control module Fuel pump relay G102 G103 (left front corner of engine compt) G201 G204 G400 (right "c" pillar) H3 x1 Ignition run relay J114 (body harness, 14.5 cm left of breakout to brake fluid level switch) J139 (body harness, in breakout to battery current sensor) J335 (body harness, 10 cm before breakout to underbody pass-through) J403 J409 Passenger instrument panel air bag Rear defogger relay Right backup lamp Right rear door latch assembly Right rear side marker lamp Right rear turn signal lamp Right tail lamp assembly Right tail/stop lamp Windshield washer pump (notchback) Windshield washer pump relay Windshield wiper motor Windshield wiper relay Windshield wiper speed control relay X2 c5 X800
HEADLIGHTS Headlights Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Headlights Wiring Diagram for Chevrolet Sonic LT 2012: 82 (base of parking brake assembly) park brake switch (forward lamp harness, 2 cm before breakout to x110) j125 Ambient light/ sunload sensor (top front center of dash) Ambient lt sens sig Auto Batt positive volt Battery fuse block (next to left front strut tower) Bcm 5 fuse 25a Body control module (bcm) (left end of dash) Computer data lines system Cruise control system Dim sw hi beam sig Dimmer switch Driver inform- ation center(dic) display Drl ind Flash Flash to pass sig Fog lp relay ctrl Front fog lamp ind Front fog lamp relay Front fog lamp switch Frt fog fuse 15a Fuse 150a G100 (left front corner of engine compt) G101 (right front of engine compt) G11 G301 (under center console) Ground Hdlp off sig ctrl Hdlp sw on sig Hdlp sw prk lp sig Head Head- lamp high beam relay Head- lamp on ind Headlamp switch Hi beam relay ctrl High High beam ind High beam lh 10a High beam rh 10a High beam switch Hot at all times Hot w/ ignition run relay energized Ign Instrument cluster Instrument panel fuse block (left end of dash) Ipc aos fuse 10a J10 J123 J124 J134 J135 J202 J212 (instrument panel harness, 2.5cm right of breakout to body control module) J236 Left front fog lamp Left headlamp Left high beam headlamp Left low beam headlamp Lh low beam volt Light ctrl sw ref Light ctrl sw sig Lo spd Lo spd gmlan Logic Low Off Park Power distribution system Prk brk sw sig Rear fog lamp switch Rh low beam volt Right front fog lamp Right headlamp Right high beam headlamp Right low beam headlamp Ser data gmlan Serial data Turn signal/ multi-function switch Underhood fuse block (next to left front strut tower) X110 X120
HORN Horn Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Horn Wiring Diagram for Chevrolet Sonic LT 2012: 17 Battery fuse block (next to left front strut tower) Body control module (left end of dash) Fuse 4 150a G100 (left front corner of engine compt) G301 (under center console) Horn (front of left frame member) Horn fuse 15a Horn relay Horn rly ctrl x5 Horn sw sig x3 Horn switch Hot at all times J123 J222 Steering wheel air bag coil (top of steering column) Underhood fuse block (next to left front strut tower) X2 g10
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 62 (under center console) g301 Abs ind Adjustable pedals ind Air bag ind Batt positive volt Brake ind Brake warning ind Center sw sig Charging ind Check engine ind ctrl Computer data lines system Cruise ind Dn sw Door ajar ind Driver information Driver information center (dic) display Driver information center select menu sw sig Electronic power steering ind Engine controls system Engine coolant Fog lamps ind Gnd High beam ind Hot at all times Hot w/ ignition run relay energized Ign volt Instrument cluster Instrument panel fuse block (left end of dash) Ipc aos fuse 10a Ipc fuse 10a J202 Left turn ind Lights on ind Lo ref Lo spd gmlan serial data Logic Low fuel warning lamp ind Malfunction ind Master lighting ind Menu switch Monitor ind Oil level ind Outside ambient Outside ambient air Park lamps ind Parking ind Power distribution system Reduce engine power ind Right turn ind Seat belt ind Security ind Set- Speedometer Temp sens lo ref Temp sensor signal Temperature ind Tire pressure Turn signal/ multi-function switch Up sw Wait to start ind ctrl X100 X202 Instrument Cluster Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 56 (base of parking brake assembly) park brake switch (w/ power window & power mirrors) j500 1.4l 1.8l Ambient air temperature sensor (right side of front grille) Body control module (left end of dash) Brake fluid level switch (master cylinder assembly) Brk fluid lvl Computer data lines system Driver door latch assembly Driver window motor Electronic brake control module (left rear of engine compt) Engine control module (ecm) (left side of engine compt) Engine controls system Engine oil pressure switch (1.4l: left rear of engine) (1.8l: lower left front of engine) Fuel lvl sens sig Fuel pump & level sensor assembly (top of fuel tank) G303 (left kick panel) G304 (right kick panel) G400 (right "c" pillar) G401 (left "c" pillar) Hatchback J303 (w/ emission system) J334 J335 J600 J900 Left rear door latch assembly Lf door ajar sw sig Lf dr ajar switch sig Lift gate ajar sw sig Liftgate latch Low ref Lr dr ajar switch sig Network bus 3 Notchback Oil pressure switch signal x2 Park brake switch sig Passenger door latch assembly Rear compartment lid latch Rf dr ajar switch sig Right rear door latch assembly Rr dr ajar switch sig Serial data Up/down W/ express W/o express X101 X102 X105 X401 X500 X600 X700 X800 X900
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Courtesy Lamps Wiring Diagram for Chevrolet Sonic LT 2012: 53 (headliner harness, 13 cm from breakout to 2nd row dome/reading lamps) j217 (headliner harness, 8 cm from breakout to 2nd row dome/reading lamps) j218 2nd row dome/reading lamps Battery pos volt Body control module (left end of dash) Bus 3 Computer data lines system Driver door latch assembly Driver window motor Front dome/reading lamps Fuse 4 5a G303 (left kick panel) G304 (right kick panel) G400 (right "c" pillar) G401 (left "c" pillar) Ground Hatchback Hot at all times Interior lamp ctrl J302 J327 J334 J335 J500 J600 J900 Left front door ajar sw sig Left rear door ajar sw sig Left rear door latch assembly Lift gate ajar sw sig (1) Liftgate latch Network 3 Notchback Passenger door latch assembly Pwr ctrl Rear compartment courtesy lamp Rear compartment lid latch Right front door ajar sw sig Right rear door ajar sw sig Right rear door latch assembly Sw sig Trunk lp ctrl Underhood fuse block (next to left front strut tower) W/ axg W/ interior roof lamp courtesy & dual reading lamps W/o axg W/o interior roof lamp courtesy & dual reading lamps X208 X500 X600 X700 X800 X900 Instrument Illumination Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Instrument Illumination Wiring Diagram for Chevrolet Sonic LT 2012: 49 (instrument panel harness, 2.5 cm right of breakout to body control module) j212 6 speed a/t Auto Batt pos volt Bcm 5 25a Body control module (left end of dash) Center console multi-function switch Computer data lines system Cruise control system Dim sig Dimmer sw + Dimmer sw - Driver door lock switch Electrical theft deterrent Front fog lp sw Fuse 2a G301 (under center console) Hazard led Hazard warning switch Hdlp sw on sig x1 Head Headlamp switch Hedlmp sw off sig ctrl x1 Hot at all times Hvac control module Illumination Ind dim ctrl Ins panel lamp dimming ctrl x6 Instrument cluster Instrument panel fuse block (left end of dash) J202 J214 (instrument panel harness, 16.5 cm above breakout to hazard & lock switch) J222 J236 J300 Led backlight dimming ctrl x2 Left steering wheel control switch Lighting ctrl sw ref x3 Lighting ctrl sw sig Logic Low spd gmlan serial data Network 3 Off Park Rear fog lp sw Right steering wheel control switch Steering wheel air bag coil (top of steering column) Transmission shift lever position indicator X202
NAVIGATION Navigation Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for Navigation Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 51 (body harness, 19.5 cm below x500) j230 (body harness, 4.5 cm into breakout to x208) j209 (headliner harness, 5 cm above breakout to left front tweeter) j233 (instrument panel harness, 6 cm from breakout to radio) j229 (under center console) g301 (w/ vehicle communication system) j203 Audio fuse 15a Aux audio common signal 2 Aux detection sig Battery positive volt Cellular phone & digital radio antenna (w/ short range wireless interface digital audio system) Cellular tel microphone sig Cellular tel voice Cellular tel voice sig Cellular telephone microphone (behind dome light bezel) Coax Computer data lines system Digital radio antenna (digital audio system) Gnd Ground Hot at all times Instrument panel fuse block (left end of dash) J225 J231 Left aux audio signal 2 Left front door speaker Left front tweeter speaker Lf speaker (+) (1) Lf speaker sig (-) (1) Lo spd gmlan serial data Low ref Low reference Lr speaker (+) Lr speaker sig (-) Nca Radio Radio antenna Rf speaker (+) (1) Rf speaker sig (-) (1) Rh aux audio signal 2 Right front door speaker Right front tweeter speaker Rr speaker (+) Rr speaker sig (-) Vlbs fuse 10a X202 X205 X206 bk X208 X500 X600 Navigation Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for Navigation Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 39 (instrument panel harness, 11.5 cm into breakout to telematics control module) (instrument panel harness, 2.5 cm right of breakout body control module) (instrument panel harness, 7 cm into breakout to radio) j211 Aux audio common sig 2 Auxiliary audio input (if equipped) Batt+ volt Body control module (left end of dash) Cellular tel voice low ref Cellular tel voice sig Computer data lines system Cruise control system Detection sig aux Down seek Drain wire Hi spd gmlan serial data (-) 1 Interior lights system J201 Left aux audio sig 2 x1 Left rear door speaker (w/ 6 speaker system) Lighting ctrl sw ref Mute Nca Resistor ladder steering wheel Right aux audio Right rear door speaker (w/ 6 speaker system) Right steering wheel controls switch Serial data (+) 1 hi spd gmlan Sig Source Steering wheel air bag coil (top of steering column) Telematics communication interface control module (tcicm) (w/ onstar) (behind right side of dash) Up seek Usb Voice Vol + Vol - X202 X700 X800
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 4) for Chevrolet Sonic LT 2012 List of elements for Power Distribution Wiring Diagram (1 of 4) for Chevrolet Sonic LT 2012: 78 (6 cm left of breakout to accelerator & brake pedal position sensors) (next to left strut tower) underhood fuse block (not used) 1.4l 1.8l Abs oil fuse 5a Abs pump fuse 40a Abs valve fuse 30a Aos/ros fuse 6a Automatic transmission assembly (a/t) Battery Battery current sensor Battery fuse block (next to left front strut tower) Blower fuse 40a Blower motor Blower motor relay Body control module Brake booster pump motor Coil fuse 20a Control solenoid valve assembly D10 Ecm 1 fuse 10a Ecm 2 fuse 20a Ecm 4 fuse 10a Ecm fuse 15a Electronic brake control module Engine control module Engine controls ignition relay Engine coolant thermostat heater Evaporative emission purge solenoid valve Evaporative emission vent solenoid valve (if equipped) Evp fuse 20a Flux fuel fuse 10a Fscm 1 fuse 20a Fuel pump control module Fuse 10a Fuse 150a Fuse 25a Fuse 4 5a Fuse 400a Fuse 40a Fuse 5a Fuse 80a Generator Heated seat front fuse 25a Hvac control module Instrument panel fuse block Intake manifold tuning solenoid valve J133 (1.4l: 7.5 cm below breakout to fuel injectors) (1.8l: 14 cm from breakout to manifold tuning solenoid) J224 Mass air flow/intake temperature sensor Multifunction intake air sensor (1.4l) Osrvm fuse 7.5a Outside rearview mirror switch (if equipped) Passenger presence detection module (if equipped) Power steering control module Run/ crank iec fuse 30a Seat heating control module (if equipped) Starter motor Starter relay Sunroof control module (if equipped) Sunroof fuse 20a Tcm fuse 15a To a/c compressor clutch realy (diagram 2 of 4) To fuse 5 (diagram 3 of 4) To injector fuse (diagram 2 of 4) To spare relay (diagram 2 of 4) Transmission control module Turbocharger bypass solenoid valve (1.4l) Turbocharger wastegate solenoid valve (1.4l) X2 a X201 X202 X208 X301 X302 X401 X500 Power Distribution Wiring Diagram (2 of 4) for Chevrolet Sonic LT 2012 List of elements for Power Distribution Wiring Diagram (2 of 4) for Chevrolet Sonic LT 2012: 80 (1.4l: 13.5 cm above breakout to alternator) (1.8l: 11 cm above breakout to starter motor) (1.4l: 5 cm into plastic harness protector) (1.8l: 4.5 cm into breakout to engine control module) (5 cm into breakout to underhood fuse block) j128 (fuel injector harness, 15 cm right of x160) (1.8l) j102 (info not available) (not used) 1.4l 1.8l A/c compressor clutch relay A/t Ac clutch fuse 10a Automatic transmission assembly (a/t) B12 Brake booster vacuum switch Control solenoid valve assembly Cooling fan fuse 30a Cooling fan fuse 40a Cooling fan high speed relay Cooling fan low speed relay Cooling fan medium speed relay (1.4l) Cooling fan relay Cooling fan speed control relay Ecm 3 fuse 10a Ecm/tcm fuse 10a Engine control module From coil fuse (diagram 1 of 4) From ecm 4 fuse (diagram 1 of 4) From fuse 46 (diagram 1 of 4) Front fog lamp relay Frt wiper fuse 30a Fuel injector 1 Fuel injector 2 Fuel injector 3 Fuel injector 4 Fuel pump control module Fuel pump fuse 20a Fuel pump relay Fuse 10a Fuse 30a Fuse 40a G102 (left rear of engine compt) G12 Hatch back Headlamp high beam relay Heated oxygen sensor 1 Heated oxygen sensor 2 Horn relay Ignition coil module Ignition run relay Injector fuse 15a J11 J117 J12 J130 J139 M/t Nca Rear defogger relay Rear window washer pump relay Rear wiper fuse 20a Rear wiper motor (if equipped) Rear wiper relay Rvc fuse 10a Spare relay To body control module (diagram 4 of 4) To splice j215 (diagram 3 of 4) Transmission control module Underhood fuse block (next to left front strut tower) Underhood relay block Washer fuse 10a Windshield washer pump relay Windshield wiper relay Windshield wiper speed control relay X1 b6 X1 x1 X160 X2 j8 X202 X3 d4 X900 Power Distribution Wiring Diagram (3 of 4) for Chevrolet Sonic LT 2012 List of elements for Power Distribution Wiring Diagram (3 of 4) for Chevrolet Sonic LT 2012: 61 (9 cm from breakout to x202) j215 (left end of dash) instrument panel fuse block (not used) 10a 7.5a Air bag fuse 10a Air bag runcrank fuse 10a Audio fuse 15a Battery fuse block (next to left strut tower) Bcm 1 fuse 20a Bcm 2 fuse 20a Bcm 3 fuse 30a Bcm 4 fuse 30a Bcm 5 fuse 25a Bcm 6 fuse 20a Bcm 7 fuse 20a Bcm 8 fuse 30a Body control module Chevy- star fuse 10a Clutch pedal position switch Clutch sw fuse Data link connector Dcdc conv fuse 30a Dic fuse 10a Dlc fuse 15a Dlis fuse 2a Driver window motor (if equipped) From a fuse 4 (diagram 1 of 4) From f bcm 8 fuse (diagram 3 of 4) From fuse 34 (diagram 2 of 4) Fuse 80a Hdlpacap fuse Headlamp switch Hvac control module Hvac fuse 10a Inflatable restraint sensing & diagnostic module Instrument cluster Instrument panel fuse block (left end of dash) Ipc aos fuse 10a Ipc fuse 10a L gate fuse 10a Liftgate unlatch relay (hatchback) M/t Onstar fuse 10a Passenger air bag disable indicator Ptc 1 fuse 40a Ptc 2 fuse 60a Pwr wndw fuse 20a Radio Rear compartment lid unlatch relay (notchback) Spare fuse 20a Telematics communication interface control module (w/ onstar) To accessory relay (diagram 4 of 4) To ignition switch (diagram 4 of 4) To spare fuse (diagram 3 of 4) Trailer fuse 20a Trailer run/crank fuse 10a Urpa fuse 10a Vlbs fuse 10a X202 X500 Power Distribution Wiring Diagram (4 of 4) for Chevrolet Sonic LT 2012 List of elements for Power Distribution Wiring Diagram (4 of 4) for Chevrolet Sonic LT 2012: 52 (6 cm behind breakout to front seats) j331 (7.5 cm left of breakout to manifold absolute pressure sensor) j101 (left end of dash) instrument panel fuse block (not used) 1.4l 1.8l A/t Acc Accessory relay Accessory voltage Accessory wakeup serial data Automatic transmission assembly (a/t) Body control module Cigar apo fuse 20a Cigar lighter receptacle Control solenoid valve assembly D11 x2 Driver window switch (if equipped) Engine control module From instrument panel fuse block (diagram 3 of 4) From onstar fuse (diagram 3 of 4) From underhood fuse block (diagram 2 of 4) Front pwr wndw fuse 25a G301 (under center console) G302 (under center console) H5 x3 Ignition key resistor sig Ignition switch J236 J336 M/t Off Off/run/crank voltage Passenger window switch (if equipped) Rap rly coil ctrl Rear pwr wndw fuse 25a Run Run relay coil ctrl Run/crank ignition 1 voltage S/roof sw fuse 10a Spare fuse 10a Spare fuse 20a Start Sunroof control module Sunroof switch Transmission control module Underhood fuse block (next to left strut tower) W/ sunroof X202 X208 X500 X600
POWER DOOR LOCKS Power Door Locks Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for Power Door Locks Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 80 & power mirrors (body harness, 10 cm left of breakout to park brake switch) j329 (center front of engine compt) hood ajar switch A (not used) Ambient light sensor (w/o electrical unauthorized entry theft deterrent) (top front center of dash) Batt positive volt Batt post volt Bcm 1 fuse 20a Bcm 5 fuse 25a Bcm 8 fuse 30a Body control module (left end of dash) Center console multi-function switch Child lockout ind Child security lock ind Child security lock motor status sig lr Child security lock motor status sig rr Child security lock rly ctrl Child security lock sw sig Child security lock switch Computer data lines system Door lock actuator lock ctrl Door lock actuator lock ctrl 2 Dr lock actuator unlock ctrl Driver door latch assembly Driver door lock sw lock sig Driver door lock switch Exterior lights system G101 (right front of engine compt) G301 (under center console) G302 (under center console) G303 (left kick panel) G401 (left "c" pillar) Gnd Ground distribution system Hatchback Headlights system Hood ajar sw sig Horn relay ctrl Horns system Hot at all times Ind dimming ctrl Instrument panel fuse block (left end of dash) Interior lights system J202 J236 J300 J327 J500 J900 Lf rr door ajar sw sig Lh frt door ajar sw sig Lh gate ajar sw sig 1 Lh hdlp low beam suply volt Lh park lamp suply volt Liftgate latch Network 3 Notchback Rear compartment lid latch Remote control door lock receiver (front center of dash) Rfa rec sig Rfa ret Rfa sply vol Rfa sply volt Rfa trans sig Rh frt door ajar sw sig Rh hdlp low beam suply volt Rh park lamp suply volt Rr child security lock mtr status sig Security indicator ctrl Sw unlock sig Up/down W/ express W/ power window W/o express W/o power window X100 X200 X208 X500 X900 Power Door Locks Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for Power Door Locks Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 29 (right "c" pillar) g400 Computer data lines system Door lock security relay Driver information center display Driver window motor G102 (left rear of engine compt) G304 (right kick panel) G401 (left "c" pillar) Instrument cluster J139 J322 J328 (body harness, 15 cm left of breakout to park brake switch) J334 J335 J600 J704 J803 Left rear door latch assembly Lf dr ajar sw sig Lo spd serial data Logic Network bus 3 Passenger door latch assembly Right rear door latch assembly Security indicator Underhood fuse block (next to left front strut tower) X600 X700 X800
POWER MIRRORS Electrochromic Mirror Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Electrochromic Mirror Wiring Diagram for Chevrolet Sonic LT 2012: 25 Batt positive volt Computer data lines system Emergency ind Emergency switch G301 (under center console) G303 (left kick panel) Gnd Green led ind Hi spd gmlan serial data Hot at all times Inside rearview mirror Instrument panel fuse block (left end of dash) J203 J500 Onstar switch Phone switch Red led Red led ind Sig Sply volt Telematics button assembly Telematics communication interface control module (behind right side of dash) Vlbs fuse 10a X200 X208 Power Mirrors Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Power Mirrors Wiring Diagram for Chevrolet Sonic LT 2012: 24 B10 B11 Driver Driver outside rearview mirror Driver outside rearview mirror glass (if equipped) Driver outside rearview mirror motor G303 (left kick panel) G304 (right kick panel) Hot at all times Hot w/ rear defogger relay energized J500 J600 Nca Osrvm fuse 7.5a Osrvm htd fuse 15a Outside rearview mirror switch Passenger Passenger outside rearview mirror Passenger outside rearview mirror glass (if equipped) Passenger outside rearview mirror motor Red Underhood fuse block (next to left front strut tower) X500 X600
POWER SEATS Power Seats Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Power Seats Wiring Diagram for Chevrolet Sonic LT 2012: 31 Computer data lines system Cushion ntc sig Driver back seat heating element Driver cushion seat heating element Driver heated seat switch Drv htd bak ele ret Drv htd ntc low ref Drv htd seat ele volt Drv htd seat ntc sig G303 (left kick panel) Gnd Heated seat fuse 25a Hot at all times Hvac controls module J327 Logic Low gmlan serl data Low speed gmlan Nca Pass htd bak ele ret Pass htd ntc low ref Pass htd seat volt Passenger back seat heating element Passenger cushion seat heating element Passenger heated seat switch Red Seat heating control module (under front of driver's seat) Serial data Underhood fuse block (next to left front strut tower) X301 X302
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Power Top/Sunroof Wiring Diagram for Chevrolet Sonic LT 2012: 22 (front center of roof) Bat+ Fuse 10a G303 (left kick panel) Gnd Hot at all times Hot w/ accessory relay energized Instrument panel fuse block (left end of dash) J301 J302 Logic Run ign 3v S/roof sw Sunroof control module Sunroof fuse 20a Sunroof sw close sig Sunroof sw open sig Sunroof switch Underhood fuse block (next to left front strut tower) X2 c3 X202 X208
POWER WINDOWS Power Windows Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Power Windows Wiring Diagram for Chevrolet Sonic LT 2012: 37 (5.5 cm behind breakout to left side impact sensor) (left kick panel) g303 Ajar sw sig Body control module (left end of dash) Door locks system Down Down sig Driver window motor Driver window switch Express sig G303 (left kick panel) Gnd Hot at all times Hot w/ accessory relay energized Instrument panel fuse block (left end of dash) J331 J500 J503 (driver door harness, 5 cm into breakout to window motor) Left rear window motor Left rear window switch Linear interconnect network bus 3 Lock out Logic Network 3 Passenger window motor Passenger window switch Pwr wndw front fuse 25a Pwr wndw fuse 20a Pwr wndw rear fuse 25a Right rear window motor Right rear window switch Up sig X202 X500 X600 X700 X800
RADIO Radio Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for Radio Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 51 (body harness, 19.5 cm below x500) j230 (body harness, 4.5 cm into breakout to x208) j209 (headliner harness, 5 cm above breakout to left front tweeter) j233 (instrument panel harness, 6 cm from breakout to radio) j229 (under center console) g301 (w/ vehicle communication system) j203 Audio fuse 15a Aux audio common signal 2 Aux detection sig Battery positive volt Cellular phone & digital radio antenna (w/ short range wireless interface digital audio system) Cellular tel microphone sig Cellular tel voice Cellular tel voice sig Cellular telephone microphone (behind dome light bezel) Coax Computer data lines system Digital radio antenna (digital audio system) Gnd Ground Hot at all times Instrument panel fuse block (left end of dash) J225 J231 Left aux audio signal 2 Left front door speaker Left front tweeter speaker Lf speaker (+) (1) Lf speaker sig (-) (1) Lo spd gmlan serial data Low ref Low reference Lr speaker (+) Lr speaker sig (-) Nca Radio Radio antenna Rf speaker (+) (1) Rf speaker sig (-) (1) Rh aux audio signal 2 Right front door speaker Right front tweeter speaker Rr speaker (+) Rr speaker sig (-) Vlbs fuse 10a X202 X205 X206 bk X208 X500 X600 Radio Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for Radio Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 39 (instrument panel harness, 11.5 cm into breakout to telematics control module) (instrument panel harness, 2.5 cm right of breakout body control module) (instrument panel harness, 7 cm into breakout to radio) j211 Aux audio common sig 2 Auxiliary audio input (if equipped) Batt+ volt Body control module (left end of dash) Cellular tel voice low ref Cellular tel voice sig Computer data lines system Cruise control system Detection sig aux Down seek Drain wire Hi spd gmlan serial data (-) 1 Interior lights system J201 Left aux audio sig 2 x1 Left rear door speaker (w/ 6 speaker system) Lighting ctrl sw ref Mute Nca Resistor ladder steering wheel Right aux audio Right rear door speaker (w/ 6 speaker system) Right steering wheel controls switch Serial data (+) 1 hi spd gmlan Sig Source Steering wheel air bag coil (top of steering column) Telematics communication interface control module (tcicm) (w/ onstar) (behind right side of dash) Up seek Usb Voice Vol + Vol - X202 X700 X800
SHIFT INTERLOCK Ignition Lock Solenoid Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Ignition Lock Solenoid Wiring Diagram for Chevrolet Sonic LT 2012: 30 (under center console) g302 1.4l 1.8l A/t Accessory voltage Battery pos volt Bcm 5 fuse 25a Body control module (bcm) (left end of dash) Brake pedal position sensor (top of brake pedal assembly) Brk aply snsr Brk aply snsr sig Brk pos sen low ref Brk pos snsr sig Brk position snsr 5v Computer data lines system Engine control module (ecm) (left side of engine compt) G301 (under center console) Gnd Hi spd gmlan + Hi spd gmlan - Hot at all times Instrument panel fuse block (left end of dash) J202 Key capture solenoid actuator (on steering column) Low ref M/t Parking position switch Transmission shift lever X101 X202 Shift Interlock Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Shift Interlock Wiring Diagram for Chevrolet Sonic LT 2012: 32 (under center console) g302 1.4l 1.8l Automatic transmission assembly Battery pos volt Bcm 5 fuse 25a Body control module (bcm) (left end of dash) Brake pedal position sensor (top of brake pedal assembly) Brk aply snsr Brk aply snsr sig Brk pos snsr 5 vlt Brk pos snsr lo ref Brk pos snsr sig Computer data lines system Control solenoid valve assembly Engine control module (ecm) (left side of engine compt) G301 (under center console) Gnd Hi spd gmlan + Hi spd gmlan - Hot at all times Instrument panel fuse block (left end of dash) J202 Low ref Prk lock solenoid ctrl x7 Prk/neut sig 1 Transmission control module (tcm) Transmission internal mode switch (ims) Transmission shift lever Transmission shift lock control solenoid actuator X101 X202
STARTING/CHARGING Charging Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Charging Wiring Diagram for Chevrolet Sonic LT 2012: 31 1.4l 1.8l Batt positive vol Battery Battery fuse block (next to left front strut tower) Body control module (left end of dash) Charge ind Computer Computer data lines system Current sensor sig Data lines system Driver information center display Engine control module (left side of engine compt) Fuse 2 400a Fuse 5a G105 (left front of engine engine compt) Gen turn on sig Generator Generator field duty cycle sig Gmlan serial data(+) x2 Gmlan serial data(-) Ground High speed serial data(+) High speed serial data(-) Hot at all times Instrument cluster Logic Low ref Low spd gmlan serial data Starter motor Underhood fuse block (next to left front strut tower) Starting Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Starting Wiring Diagram for Chevrolet Sonic LT 2012: 49 1.4l 1.8l Acc Automatic transmission assembly Battery Battery fuse block (next to left front strut tower) Body control module (left end of dash) Charging circuit Clutch pedal pedal position switch (m/t) (top of clutch pedal assembly) Clutch pedal pos sw sig Clutch pedal position sensor (m/t) (on clutch pedal assembly) Clutch sw fuse 7.5a Computer Computer data lines system Control solenoid valve assembly Data lines system Engine control module (left side of engine compt) Fuse 150a Fuse 400a G102 (left rear of engine compt) G104 (1.4l: rear of cylinder bank) (1.8l: lower right rear of engine) G105 (left front of engine compt) Gmlan serial data(+) x2 Gmlan serial data(-) Hi spd gmlan serial data(+) Hi spd gmlan serial data(-) Hot w/ ignition run relay energized Ig key resistor sig Ign voltage Ignition switch Instrument panel fuse block (left end of dash) J122 J128 (a/t) J139 Lock Off/run/crank volt P/n sw sig Run Run/crank iec fuse 30a Rvc fuse 15a Start Starter motor Starter relay Str rly coil ctrl Transmission control module Transmission internal mode switch Underhood fuse block (next to left front strut tower) X101 X202
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 74 (in steering wheel) steering wheel air bag (right side of dash) passenger instrument panel air bag Air bag fuse 10a Air bag ind Air bag run crank fuse 10a Aos/ros fuse 5a Batt positive volt Belt ind passenger seat Computer data lines system Driver information center display Driver knee air bag (if equipped) (under left side of dash) Driver seat belt ind Drv knee Drv knee mod hi ctrl Drv knee mod lo ctrl G204 G300 (under center console) G301 (under center console) G304 (right kick panel) Gnd Ground Hot at all times Hot w/ ignition run relay energized Inflatable restraint sensing & diagnostic module (sdm) (under front of center console) Instrument cluster Instrument panel fuse block (left end of dash) Ipc aos fuse 10a J202 J236 Left front impact sensor (left side of radiator support) Lo spd Lo spd gmlan serial data Logic Mod hi ctrl Module connector is disconnected from harness: (shorting bars are connected between following pins: 1-2, 3-4, 5-6, 7-8, 21-22 & 23-24) Nca Off ind On ind Pass air bag off ind ctrl Pass air bag on ind ctrl Pass ip mod stage 1 hi ctrl Pass ip mod stage 1 lo ctrl Pass ip mod stage 2 hi ctrl Pass ip mod stage 2 lo ctrl Pass knee mod hi ctrl Pass knee mod lo ctrl Pass knee mod lo ctrl x1 Pass seat belt ind Passenger air bag disable indicator Passenger knee air bag (if equipped) (under right side of dash) Passenger presence detection module (if equipped) Passenger presence sensor (under passenger's seat) Pin shorting bars engaged when Pnk Power distribution system Right front impact sensor (right side of radiator support) Right front side impact sensor (inside bottom of passenger's door) Run/crank ign 1v Run/crank ign volt Shorting bar Steering wheel air bag coil (top of steering column) Steering wheel mod stage 1 hi ctrl Steering wheel mod stage 1 lo ctrl Steering wheel mod stage 2 hi ctrl Steering wheel mod stage 2 lo ctrl Tan Underhood fuse block (next to left front strut tower) X100 X120 X207 X210 X211 X302 X600 Supplemental Restraints Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 60 (base of driver's seat belt buckle) driver seat belt anchor pretensioner (base of passenger's seat belt buckle) passenger seat belt anchor pretensioner (inside bottom of driver's doors) left front side impact sensor (left outside edge of roof) left roof rail air bag (left side of driver's seat back) driver seat air bag (right side of passenger's seat back) passenger seat air bag Driver seat belt buckle Driver seat belt retractor pretensioner (base of left "b" pillar) Driver seat belt switch Drv seat belt anchor pretensioner hi ctrl Drv seat belt anchor pretensioner lo ctrl Drv seat belt retractor pretensioner hi ctrl Drv seat belt retractor pretensioner lo ctrl Drv seat belt sw sig Drv side impact mod hi ctrl Drv side impact mod lo ctrl Inflatable restraint sensing & diagnostic module (sdm) (under front of center console) Info not available Left rear seat air bag (if equipped) (left side of left rear seat back) Left rear side impact sensor (if equipped) (base of left "b" pillar) Lf discriminating sens lo ref Lf discriminating sens sig Lf head curtain mod hi ctrl Lf head curtain mod lo ctrl Lf side impact sensing mod sig Lh middle side impact sensing mod lo ref Lh middle side impact sensing mod sig Lo ref Lr seat bolster air bag hi ctrl Lr seat bolster air bag lo ctrl Nca Pass seat belt anchor pretensioner hi ctrl Pass seat belt anchor pretensioner lo ctrl Pass seat belt reminder sig Pass seat belt retractor pretensioner hi ctrl Pass seat belt retractor pretensioner lo ctrl Pass seat belt sw sig Pass side impact mod hi ctrl Pass side impact mod lo ctrl Passenger seat belt buckle Passenger seat belt retractor pretensioner (base of right "b" pillar) Passenger seat belt switch Pin shorting bars engaged when module connect is disconnected from harness: (shorting bars are connected between following pins: 3-4, 7-8, 9-10, 11-12, 13-14, 15-16, 17-18, 37-38, 39-40 & 53-54) Red Rf discriminating sen lo sig Rf discriminating sens lo sens lo ref Rf head curtain mod hi ctrl Rf head curtain mod lo ctrl Rf side impact sensing mod sig Rh middle side impact sensing mod lo ref Rh middle side impact sensing mod sig Right rear seat air bag (if equipped) (right side of right rear seat back) Right rear side impact sensor (if equipped) (base of right "b" pillar) Right roof rail air bag (right outside edge of roof) Rr seat bolster air bag hi ctrl Rr seat bolster air bag lo ctrl Shorting bar X301 X302 X500
TRANSMISSION Transmission Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Transmission Wiring Diagram for Chevrolet Sonic LT 2012: 76 (1.4l: rear of cylinder bank) (1.8l: lower right rear of engine) 1.4l 1.8l Automatic transmission assembly Body control module (bcm) (left end of dash) Center console multi-function switch Computer data lines system Control solenoid valve assembly Driver information center (dic) Econo Engine control module (ecm) (left side of engine compt) G104 G301 (under center console) Gmlan Gmlan serial data (+) 1 Gmlan serial data (-) 1 Gmlan serial data (-) gmlan serial data (+) Gnd Hi spd gmlan ser data (+) Hi spd gmlan ser data (-) Hot at all times Hot w/ ignition run relay energized Ign Instrument cluster Iss high Iss low J122 J128 J202 Logic Low ref Oss high Oss low P/n Park/ neutral sig Pc 1 solenoid Pc 2 solenoid Pc 3 solenoid Pc 4 solenoid Pc 5 solenoid Pressure control solenoid valve 1 Pressure control solenoid valve 2 Pressure control solenoid valve 3 Pressure control solenoid valve 4 Pressure control solenoid valve 5 Red Rvc fuse 10a Shift solenoid valve 1 Shift solenoid valve 2 Ss 1 Ss 2 Tap up/tap down sw sig Tcc solenoid Tcm fuse 15a Tfp 1 Tfp 3 Tfp 4 Tfp 5 Tft Torque converter clutch pressure control solenoid valve Transmission control module Transmission fluid pressure manual valve position switch Transmission fluid temperature sensor Transmission input shaft speed sensor Transmission internal mode switch Transmission manual shift switch Transmission output shaft speed sensor Transmission shift lever Trns range sig a Trns range sig b Trns range sig c Trns range sig p Underhood fuse block (next to left front strut tower) Wakeup serial data Winter mode sw sig X200
TRUNK, TAILGATE, FUEL DOOR Liftgate Release Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Liftgate Release Wiring Diagram for Chevrolet Sonic LT 2012: 22 (left "c" pillar) Bcm 1 fuse 20a Body control module (left end of dash) Computer data lines system Driver information center display Endgate latch relay coil ctrl x5 G401 Hot at all times Instrument cluster Instrument panel fuse block (left end of dash) J900 L gate fuse 10a Lift gate ajar switch signal (1) Lift glass/trunk mtr release ctrl x4 Liftgate latch Liftgate unlatch relay Liftgate unlatch switch Lo spd gmlan serial data Logic Rear closure handle sw open sig X202 X900 Trunk Release Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Trunk Release Wiring Diagram for Chevrolet Sonic LT 2012: 23 (left "c" pillar) Bcm 1 fuse 20a Body control module (left end of dash) Computer data lines system Driver information center display Exterior rear compartment lid unlatch switch G303 (left kick panel) G401 Hot at all times Instrument cluster Instrument panel fuse block (left end of dash) J327 J900 L gate fuse 10a Lift gate ajar switch signal (1) Lift glass/trunk mtr release ctrl Lo spd gmlan serial data Logic Rear closure handle sw open sig Rear compartment lid latch Rear compartment lid unlatch relay X202 X900
WARNING SYSTEMS Warning Systems Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012 List of elements for Warning Systems Wiring Diagram (1 of 2) for Chevrolet Sonic LT 2012: 50 Acc Auto Bcm 5 fuse 25a Body control module (left end of dash) Brake ind Computer data lines system Dlis fuse 2a Driver information center (dic) display Driver window motor G301 (under center console) Gnd Head Headlamp sw park lp sig x1 Headlamp switch Hi spd gmlan serial data(+) Hi spd gmlan serial data(-) Hot at all times Hot w/ ign run relay energized Ignition switch Instrument cluster Instrument panel fuse block (left end of dash) Ipc aos fuse 10a J202 J236 Key in ignition switch Lf door haz sw Lf door haz sw sig Lift gate haz sw sig Lo spd gmlan serial data Logic Low tire pressure ind Lr door haz sw sig Network bus 3 Off Off/run/crank volt Park Park brake switch (base of parking brake assembly) Park brk sw sig Rf door haz sw sig Rr door haz sw sig x7 Run Run/crank ign1 volt Seat belt ind lp Start W/ express up/down W/o express up/down X500 X600 X700 X800 Warning Systems Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012 List of elements for Warning Systems Wiring Diagram (2 of 2) for Chevrolet Sonic LT 2012: 47 (left kick panel) (left rear of engine compt) (right kick panel) Brake fluid level switch (master cylinder assembly) Brk fluid lvl sen sig Computer data lines system Driver door latch assembly Driver seat belt buckle Driver seat belt sw sig Driver seat belt switch Electronic brake control module G301 (under center console) G303 G303 (left kick panel) G304 G400 (right "c" pillar) G401 (left "c" pillar) Hatchback Hi spd gmlan serial data(+) Hi spd gmlan serial data(-) Inflatable restraint sensing & diagnostic module (under front of center console) J202 J334 J335 J500 (w/ power window & power mirrors) J600 J900 Left rear door latch assembly Liftgate latch Lo ref Lo spd gmlan serial data Nca Notchback Passenger air bag disable indicator Passenger door latch assembly Passenger seat belt buckle Passenger seat belt ind Passenger seat belt sw sig Passenger seat belt switch Rear compartment lid latch Red Right rear door latch assembly X301 X302 X700 X800 X900
WIPER/WASHER Wiper/Washer Wiring Diagram for Chevrolet Sonic LT 2012 List of elements for Wiper/Washer Wiring Diagram for Chevrolet Sonic LT 2012: 53 (left rear of engine compt) g102 87a Body control module (left end of dash) C1 x2 Computer data lines system Delay switch Driver information center (dic) display Front windshield wipe switch high signal Frt wiper fuse 23 30a G102 (left rear of engine compt) G401 (left "c" pillar) Hatchback High High speed gmlan serial High speed gmlan serial data (-) (1) Hot at all times Instrument cluster Int J114 J139 J900 Logic Low Low refr Low speed gmlan serial data Mist Notchback Off Rear wind washer rly ctrl Rear wind wip sw sig Rear window washer pump relay Rear wip mtr rly coil ctrl Rear wiper fuse 20a Rear wiper motor (hatchback) (center of liftgate) Rear wiper relay Underhood fuse block (next to left front strut tower) Washer fuse 10a Washer switch Windshield washer pump (on windshield washer reservoir) Windshield washer pump relay Windshield washer rly ctrl Windshield washer sw sig Windshield wiper Windshield wiper motor (left rear of engine compt) Windshield wiper motor park switch sig Windshield wiper relay Windshield wiper speed control relay Windshield wiper switch high signal Windshield wiper switch low signal Windshield wiper washer switch Windshield wiper/ washer switch Wiper switch X202
