Chevrolet Volt I (2010-2015) (behind center of dash) Wiring diagrams

1 3 HI SPD GMLAN SERIAL DATA - HI SPD GMLAN SERIAL DATA + BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BODY CONTROL MODULE (UNDER RIGHT SIDE OF DASH) BRAKE CONTROL BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRAKE FLUID LEVEL SWITCH (MASTER CYLINDER ASSEMBLY) BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRK APPLY SENS SIG BRK APPLY SENS SPLY VOLT BRK PDL TRAVEL SENS 1 HI REF BRK PDL TRAVEL SENS 1 SIG BRK PDL TRAVEL SENS 2 SIG BRN WIRE BRN/WHT WIRE COMBINED VEHICLE INERTIAL SENS SPLY VOLT COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CONSOLE) CRUISE/ETS/TCC BRAKE SIG DATA ENGINE CONTROL MODULE (LEFT FRONT CORNER OF ENGINE COMPT) GRY/BLK WIRE HI SPD GMLAN SERIAL DATA LO REF LO SPD GMLAN SERIAL DATA LOGIC LT BLU WIRE LT BLU/BLK WIRE LT BLU/RED WIRE LT BLU/VIO WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/BRN WIRE LT GRN/GRY WIRE MULTI-AXIS ACCELERATION SENSOR (UNDER CENTER OVERHEAD CONSOLE MULTIFUNCTION SWITCH PARK BRAKE CONTROL SWITCH STEERING ANGLE SENSOR (TOP OF STEERING COLUMN, BEHIND STEERING WHEEL) SYSTEM TRACTION CONTROL SWITCH TRACTION CTRL SWITCH SIG UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/BRN WIRE WHT WIRE WHT/LT BLU WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 B+ LOW SPD GMLAN AIR RECIRCULATION DOOR ACTUATOR (ON HVAC MODULE, ABOVE BLOWER MOTOR) AIR TEMP SENS SIG HUMIDITY TEMP SENS SIG 5 VOLT REF LOW REF AIR TEMPERATURE DOOR ACTUATOR (LEFT SIDE OF HVAC MODULE) BLK RED/ WIRE BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLOWER MOTOR SPD CTRL BRN WIRE BRN/DK GRN WIRE BRN/LT BLU WIRE BRN/VIO WIRE CABIN CLANT MTR CTRL GND IGN COMPUTER DATA LINES SYSTEM CTRL 1 CTRL 2 CTRL 4 DEFOGGER IND DEFOGGER SW DEFOGGER SYSTEM DK BLU/WHT WIRE DK GRN BRN/ WIRE DK GRN RED/ WIRE DK GRN WIRE DK GRN/WHT WIRE GRY WIRE GRY/DK GRN WIRE GRY/LT BLU WIRE GRY/LT GRN WIRE GRY/ORG WIRE GRY/RED WIRE HOT AT ALL TIMES HTR COOLANT MTR HUMIDITY SENS SIG HVAC CONTROL MODULE (CENTER OF DASH) HVAC FUSE LEFT INSTRUMENT PANEL FUSE BLOCK (BEHIND LEFT END OF DASH) LH AIR TEMP SENS SIG COOLANT TEMP SIG LINEAR INTERCONNECT NETWORK BUS 9 LOGIC LOW REF LOW REF REAR DEFOG RLY CTRL LT BLU/GRY WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/YEL WIRE MODE DOOR ACTUATOR (LEFT SIDE OF HVAC MODULE) MTR ORG/ WIRE PNK WIRE POWER DISTRIBUTION SYSTEM RADIO/ HVAC CONTROLS RED/ GRY WIRE RED/BLK WIRE RED/DK GRN WIRE RED/LT GRN WIRE SERIAL DATA LINEAR INTERCONNECT NETWORK BUS 9 SPLY TEMP SENS COMM LO REF TWILIGHT SENTINEL SIG VIO/BRN WIRE VIO/YEL WIRE VOLT WHT DK GRN/ WIRE WHT WIRE WHT/ DK BLU WIRE WHT/PNK WIRE WHT/RED WIRE WINDSCRN TEMP SENS SIG YEL WIRE YEL/LT BLU WIRE YEL/RED WIRE YEL/VIO WIRE

12 VOLT REF 19 24 25 LOW REF DATA BUS - DATA BUS + 33 52 38 10 24 30 2 16 29 43 CRUISE/ETC/TCC BRK SIG CHECK ENGINE IND CTRL 7 13 SENSOR SIG SENSOR SPLY VOLT ACCELERATOR PEDAL POSITION SENSOR (PART OF ACCELERATOR PEDAL ASSEMBLY) BLK WIRE BLK/BRN WIRE BLK/LT BLU WIRE BLK/VIO WIRE BODY CONTROL MODULE (UNDER RIGHT SIDE OF DASH) BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRN/DK GRN WIRE BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/RED WIRE BRN/WHT WIRE CANCEL CRUISE SWITCH COMPUTER DATA LINES SYSTEM CRUISE CTRL CRUISE IND CRUISE/ETC/TCC BR SIG DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (LEFT FRONT CORNER OF ENGINE COMPT) GROUND INSTRUMENT PANEL CLUSTER LEFT STEERING WHEEL CONTROL SWITCH LOGIC LOW REF ACC PEDAL POSITION SIG 1 LOW REF ACC PEDAL POSITION SIG 2 LT BLU WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/WHT WIRE MAIN RLY FUSED SPLY (1) RED WIRE RES+ SER DATA SERIAL DATA BUS (+) SERIAL DATA BUS (-) SET- SOUND SYSTEMS STEERING WHEEL AIR BAG COIL (TOP OF STEERING COLUMN) THROTTLE BODY (ON INTAKE MANIFOLD ASSEMBLY) TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC CTRL CLOSE TAC CTRL OPEN TRANSMISSION OUTPUT SHAFT SPEED SENSOR VIO WIRE VIO/LT BLU WIRE WHT WIRE WHT/LT BLU WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

1 2 GROUND BATT POS VOLT 21 33 DATA- DATA+ ANTI-LOCK BRAKES SYSTEM AUXILIARY UNDERHOOD FUSE BLOCK (LEFT REAR OF ENGINE COMPT) BLK WIRE BRN WIRE COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DATA COMM ENABLE SERIAL DATA (+) SERIAL DATA (+) SERIAL DATA (-) SERIAL DATA (-) DISPLAY ELECTRONIC BRAKE CONTROL MODULE (PART OF BRAKE MASTER CYLINDER ASSEMBLY) FUSE 2 HOT AT ALL TIMES LT BLU WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/BRN WIRE POWER STEERING CONTROL MODULE (UNDER VEHICLE ON STEERING RACK) POWER STEERING MOTOR (ON STEERING RACK ASSEMBLY) POWER STEERING SHAFT TORQUE SENSOR (ON STEERING RACK ASSEMBLY) RED/LT GRN WIRE SENS SIG SENS RTN SERIAL DATA LOGIC INSTRUMENT CLUSTER SPLY VOLT STEERING WHEEL ANGLE SENSOR (TOP OF STEERING COLUMN, BEHIND STEERING WHEEL) SYSTEM WHT WIRE WHT/LT BLU WIRE

13 7 1 SENS SPLY VOLT SENS SIG B+ VOLT 24 12 RIGHT TURN SW SIG LEFT TURN SW SIG BCM/EXT LIGHTS FUSE BLK WIRE BLK/BRN WIRE BODY CONTROL MODULE (UNDER RIGHT SIDE OF DASH) BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRAKE SIG BRN/YEL WIRE COMPUTER DATA LINES SYSTEM ENGINE COMPT) ENGINE CONTROL MODULE (ECM) (LEFT FRONT CORNER OF ENGINE COMPT) FEEDBACK SIG HAZARD SW SIG HAZARD SWITCH HEAD HOT AT ALL TIMES LEFT LEFT INSTRUMENT PANEL FUSE BLOCK (BEHIND LEFT END OF DASH) LEFT REAR TURN SIGNAL LAMP LEFT STOP LAMP LEFT TAIL LAMP LEFT TAIL LAMP ASSEMBLY LF TURN SIG SPLY VOLT TAIL LP SPLY VOLT LR TURN SIG SPLY VOLT 7 1 LOGIC LOW REF LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/VIO WIRE LT GRN/WHT WIRE LT GRN/YEL WIRE NETWORK BUS 4 PARK AUTO OFF PARK LAMP SIG RADIO/HVAC CONTROLS RED/BRN WIRE RIGHT RIGHT REAR TURN SIGNAL LAMP RIGHT STOP LAMP RIGHT TAIL LAMP RIGHT TAIL LAMP ASSEMBLY SERIAL DATA TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF VIO WIRE VIO/BLK WIRE WHT WIRE WHT/BLK WIRE WHT/LT BLU WIRE WHT/VIO WIRE WHT/YEL WIRE YEL/BRN WIRE

AIR BAG FUSE BLK WIRE BLK/BRN WIRE BRN WIRE BRN/YEL WIRE CENTER HIGH MOUNTED STOP LAMP COMPUTER DATA LINES SYSTEM DISPLAY DRIVER OUTSIDE REARVIEW MIRROR HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FRONT TURN SIGNAL LAMP LEFT LICENSE PLATE LAMP LEFT TURN SIGNAL REPEATER LAMP LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/VIO WIRE LT GRN/YEL WIRE NCA WIRE PASSENGER OUTSIDE REARVIEW MIRROR RIGHT FRONT TURN SIGNAL LAMP RIGHT LICENSE PLATE LAMP RIGHT TURN SIGNAL REPEATER LAMP SERIAL DATA UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO WIRE VIO/LT GRN WIRE W/ PARKING ASSIST W/O PARKING ASSIST WHT WIRE WHT/YEL WIRE

1 2 24 RH HDLP LO SPLY VOLT LH HDLP LO SPLY VOLT HOOD AJAR SW SIG 18 12 LOCK MTR STATUS SIG RR LOCK MTR STATUS SIG LR 2 25 GND SPLY VOLT 2501 2500 COMPUTER DATA LINES 26 24 25 RCV SIG GMLAN SER DATA (-) GMLAN SER DATA (+) 27 16 15 19 TRANS SIG ACTR RTN UNLCK SIG LCK SIG 312 712 109 HEADLIGHTS SYSTEM 4 1 ACTR UNLCK CTRL ACTR LCK CTRL 2 ACTR RTN BATT POS VOLT BLK WIRE BODY CONTROL MODULE (UNDER RIGHT SIDE OF DASH) BRN WIRE BRN/LT GRN WIRE BRN/WHT WIRE BRN/YEL WIRE BUS 3 COMPUTER DATA LINES SYSTEM DOOR LOCK RELAY DR LOCK CTRL LOCK CTRL 2 DRIVER DOOR LATCH ASSEMBLY (CENTER REAR OF DRIVER'S DOOR) GRY WIRE GRY/BLK WIRE GRY/LT GRN WIRE GRY/WHT WIRE HOOD OPEN SW SIG HORN RLY CTRL HORNS SYSTEM LOGIC LOGIC DRIVER WINDOW MOTOR DRIVER WINDOW (DRIVER'S DOOR) SWITCH LT BLU WIRE LT BLU/BRN WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/YEL WIRE NCA WIRE NETWORK BUS 3 RADIO/HVAC CONTROLS RCV SIG RED/BRN WIRE RLY CTRL SPLY VOLT STATUS CTRL SW SIG LF DR AJAR SYSTEM TRANS SIG UNLOCK SIG VIO/YEL WIRE WHT WIRE WHT/LT BLU WIRE YEL WIRE YEL/LT GRN WIRE

1 2 RH HDLP LO SPLY VOLT LH HDLP LO SPLY VOLT 18 12 LOCK MTR STATUS SIG RR LOCK MTR STATUS SIG LR 2 4 DR LCK CTRL (2) ACTR UNLCK CTRL 24 25 GMLAN SER DATA (-) GMLAN SER DATA (+) 27 16 15 19 2 TRANS SIG ACTR RTN UNLCK SIG LCK SIG GND 6 5 IGN VOLT ACC VOLT ACTR RTN B+ GND B+ GND ACC VOLT 2 3 4 5 6 BATT POS VOLT BLK LT GRN/ WIRE BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BODY CONTROL MODULE (UNDER RIGHT SIDE OF DASH) BRN/LT GRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DOOR LOCK RELAY DR LOCK CTRL LOCK CTRL 2 GMLAN SERIAL DATA GRY WIRE GRY/BLK WIRE GRY/LT GRN WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOOD AJAR SW SIG HORN RLY CTRL HORNS SYSTEM LT BLU WIRE LT BLU/ WHT WIRE LT BLU/BRN WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN YEL/ WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/LT BLU WIRE RADIO/HVAC CONTROLS RCV SIG RED/BRN WIRE RED/WHT WIRE RLY CTRL SPLY VOLT SW SIG 2 LOW REF SYSTEM TRANS SIG VEHICLE ON/OFF SWITCH VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/LT BLU WIRE YEL WIRE YEL/LT GRN WIRE

AUXILIARY DATA CONNECTOR BATTERY BATTERY CURRENT SENSOR BATTERY ENERGY CONTROL MODULE BATTERY STATE OF CHARGE INDICATOR BLK WIRE BLK/BRN WIRE BLOWER MOTOR CONTROL MODULE BODY CONTROL MODULE CENTER CONSOLE ACCESSORY POWER RECEPTACLE CIGARETTE LIGHTER DATA LINK CONNECTOR DOOR DEAD LOCK RELAY DOOR LOCK RELAY DRIVE MODE SELECT SWITCH DRIVER INFORMATION CENTER SWITCH FRONT DOME/ READING LAMPS FRONTVIEW CAMERA MODULE GRY WIRE HORN SWITCH HYBRID/EV BATTERY PACK INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INFO DISPLAY MODULE INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL FUSE BLOCK (BEHIND LEFT END OF DASH) LEFT STEERING WHEEL CONTROL SWITCH LEFT SUNSHADE MIRROR LAMP LT GRN WIRE MODULE NCA WIRE OVERHEAD CONSOLE MULTIFUNCTION SWITCH PASSENGER AIR BAG GARAGE DISABLE DOOR INDICATOR OPENER RADIO/ HVAC CONTROLS REAR DOME READING LAMPS RETAINED ACCESSORY POWER RELAY RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT STEERING WHEEL CONTROL SWITCH RIGHT SUNSHADE MIRROR LAMP STEERING WHEEL AIR BAG COIL (TOP OF STEERING COLUMN) TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK PARK CONTROL POSITION SOLENOID SWITCH ACTUATOR TURN SIGNAL/ MULTI-FUNCTION SWITCH VEHICLE INSIDE ON/OFF REARVIEW SWITCH MIRROR VIO WIRE W/ PARKING ASSIST WHT/BLK WIRE

1 2 RH HDLP SPLY VOLT LH HDLP SPLY VOLT 11 17 DIM SW HI BEAM SIG FLASH TO PASS SIG SW 18 5 HI BEAM RLY CTRL LF DRL SPLY VOLT AIR BAG FUSE AMBIENT LIGHT/ SUNLOAD SENSOR (FRONT CENTER OF DASH) AMBIENT LT SENS SIG BATTERY FUSE BLOCK (ON BATTERY POSITIVE (+) POST BLK WIRE BLK/BRN WIRE BODY CONTROL MODULE (UNDER RIGHT SIDE OF DASH) BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DISPLAY FUSE 5 GROUND DISTRIBUTION SYSTEM LEFT HIGH BEAM SOLENOID ACTUATOR GROUND DISTRIBUTION SYSTEM RIGHT DAYTIME RUNNING LAMP GRY WIRE GRY/LT BLU WIRE HEAD PARK AUTO OFF HEAD- LAMP HI BEAM DIMMER HI BEAM FLASH TO PASS SWITCH HI HI BEAM BEAM LT RT FUSE FUSE HIGH BEAM RELAY HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROL MODULE (CENTER OF DASH) IGN INSTRUMENT CLUSTER LEFT DAYTIME RUNNING LAMP, LEFT HEADLAMP LEFT LOW BEAM HEAD- LAMP LO SPD GMLAN SERIAL DATA LOGIC LOW REF LT BLU BRN/ WIRE LT BLU WIRE LT BLU/BRN WIRE LT GRN WIRE LT GRN/BRN WIRE LT GRN/GRY WIRE OF DASH) RED WIRE RED/YEL WIRE RF DRL SPLY VOLT RIGHT HEADLAMP RIGHT HIGH BEAM SOLENOID ACTUATOR RIGHT LOW BEAM HEAD- LAMP SWITCH TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/LT GRN WIRE WHT WIRE WHT/LT BLU WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE