Chevrolet Volt I (2010-2015) logic Wiring diagrams

AUTOMATIC TRANSMISSION ASSEMBLY (HYBRID) B+ VOLT BACKUP LAMP BCM/EXT LIGHTS FUSE BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BODY CONTROL MODULE (UNDER RIGHT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY GRN/BRN WIRE GRY WIRE GRY/ORG WIRE HOT AT ALL TIMES HYBRID/EV POWERTRAIN CONTROL MODULE 1 INSIDE REARVIEW MIRROR LEFT INSTRUMENT PANEL FUSE BLOCK (BEHIND LEFT END OF DASH) LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/RED WIRE LT GRN/WHT WIRE LT GRN/YEL WIRE NCA WIRE NETWORK BUS 4 REARVIEW CAMERA (CENTER OF REAR BUMPER) RED WIRE RED/BRN WIRE SERIAL DATA SIG A SIG B SIG C SIG P SPLY VOLT TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH VIO WIRE W/ PARKING ASSIST ASSIST W/O PARKING WHT WIRE YEL/BLK WIRE YEL/LT GRN WIRE YEL/RED 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 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

BLK WIRE BODY CONTROL MODULE (BCM) (UNDER RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPT) GROUND DISTRIBUTION SYSTEM GRY WIRE HORN FUSE HORN RELAY HORN RLY CTRL HORN SWITCH (IN STEERING WHEEL) HOT AT ALL TIMES LEFT HORN LOGIC LT BLU WIRE LT GRN/WHT WIRE NCA WIRE OF ENGINE) PEDESTRIAN FRIENDLY ALERT SUPPLY VOLT HORN SWITCH SIG REAR BODY FUSE BLOCK (LEFT REAR CORNER OF LUGGAGE COMPT) RED WIRE RIGHT HORN RIGHT STEERING WHEEL CONTROLS SWITCH STEERING WHEEL AIR BAG COIL (TOP OF STEERING COLUMN) TURN SIGNAL/ MULTI-FUNCTION SWITCH WHT WIRE YEL WIRE

"CHECK ENGINE" IND CTRL AIR BAG IND AMBIENT AIR TEMPERATURE SENSOR (BEHIND RIGHT SIDE OF FRONT BUMPER) BACK BATTERY POSITIVE VOLTAGE BCN/EXT LIGHTS FUSE BLK WIRE BLK/BRN WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BRAKE FLUID LEVEL SWITCH (MASTER CYLINDER ASSEMBLY) BRAKE IND BRAKE WARN IND BRK FLUID LVL SENS SIG BRN/VIO WIRE CLSTR FUSE COMPUTER DATA LINES SYSTEM CONFIG DISPLAY DRIVER INFORMATION CENTER SW PLUS SIG DRIVER INFORMATION CENTER SW SIG DRIVER INFORMATION CENTER SWITCH ELECTRONIC BRAKE CONTROL MODULE (PART OF BRAKE MASTER CYLINDER ASSEMBLY) ENGINE CONTROLS SYSTEM FORWARD COLLISION IND GRY WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER LANE DEPARTURE IND LEFT INSTRUMENT PANEL FUSE BLOCK (BEHIND LEFT END OF DASH) LO REF LO REF DRIVER INFORMATION CENTER SW MINUS SIG LO SPD GMLAN SERIAL DATA LOGIC LOW TIRE PRESSURE IND LT BLU WIRE LT BLU/GRY WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/WHT WIRE MALFUNCTION IND LO WASH FLUID IND CTRL MISC RUN/ CRNK FUSE RED/BRN WIRE RED/LT GRN WIRE RUN/CRANK IGN 1 VOLT SEAT BELT IND SELECT SERIAL DATA TRACTION CTRL IND UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO WIRE VIO/LT GRN WIRE WHT WIRE WIPER/WASHER SYSTEM YEL/BRN WIRE

"CHECK ENGINE" IND CTRL 5 VOLT REF 890 1589 INSTRUMENT CLUSTER SYSTEM AIR INJ CTRL VAL 1 LOW REF BLK WIRE BLK/BRN WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CLUSTER SYSTEM COMPUTER DATA LINES SYSTEM CONNECTOR BREAKOUT) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (LEFT REAR OF CYLINDER HEAD) EVAP CANISTER PUR SOL CTRL EVAP EMIS LEAK DETC PMP SIG FUEL TANK PRESS SENS SIG PRIMARY FUEL LVL SENS SIG GRY WIRE GRY/LT BLU WIRE GRY/RED WIRE GRY/WHT WIRE INSTRUMENT INSTRUMENT CLUSTER LO SPD GMLAN SERIAL DATA LOGIC LOW REF 5 VOLT REF LOW REF LOW REF LT BLU WIRE LT BLU/LT GRN WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/ BLK WIRE LT GRN/LT BLU WIRE LT GRN/WHT WIRE MALFUNC- TION IND MANFOLD ABSOLT PRESS SENS SIG ENGINE COOLANT TEMP SENS SIG MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR (IN INTAKE MANIFOLD) NCA WIRE PUMP PRESSURE SENSOR SIGNAL PUMP SENS SUPPLY VOLTAGE RED/WHT WIRE SECONDARY AIR INJECTION PUMP (RIGHT SIDE OF ENGINE) SECONDARY AIR INJECTION SOLENOID VALVE (FRONT OF CYLINDER HEAD) VIO/LT BLU WIRE WHT WIRE WHT/BRN WIRE WHT/YEL WIRE YEL/LT BLU WIRE YEL/RED WIRE

AUTOMATIC TRANSMISSION ASSEMBLY AUXILIARY TRANSMISSION FLUID PUMP AUXILIARY TRANSMISSION FLUID PUMP CONTROL MODULE BATT POS VOLT BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVE MOTOR 1 ENGINE CONTROLS CIRCUIT GRN WIRE GRN/BRN WIRE GRY WIRE GRY/ORG WIRE HYBRID POWERTRAIN CONTROL MODULE 1 IMS MODE SW S SIG LOGIC LT BLU WIRE LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/RED WIRE LT GRN/YEL WIRE NCA WIRE ORG/ WIRE POWER INVERTER MODULE (LEFT SIDE OF ENGINE COMPT) RED WIRE RED/LT BLU WIRE RED/YEL WIRE RUN/CRNK IGN 1 VOLT SERIAL DATA 2 SIG GND SNSR SIG TRANSMISSION INTERNAL MODE SWITCH VIO WIRE VIO/BLK WIRE VIO/GRN WIRE WHT WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/LT GRN WIRE YEL/RED WIRE

3788 3787 3791 COOLING FANS SYSTEM COMPUTER DATA LINES SYSTEM 3790 3953 COOLING FANS SYSTEM 3827 3954 2364 5139 3793 TRUNK, TAILGATE, FUEL DOORS SYSTEM 59 60 61 HIGH CONTROL 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 PILOT SIG IND CTRL 6801 3794 TRUNK, TAILGATE, FUEL DOORS SYSTEM AUXILIARY HEATER CTRL B+ VOLT BATTERY FUSE BLOCK (ON BATTERY POSITIVE (+) POST BATTERY STATE OF CHARGE INDICATOR BLK WIRE BLK/BRN WIRE BLK/LT GRN WIRE BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/WHT WIRE BRN/YEL WIRE CHARGE PORT DOOR POSITION SWITCH (BEHIND REAR OF LEFT FRONT FENDER) COMPUTER DATA LINES SYSTEM COOLANT MOTOR ENABLE COMMUNICATION ENABLE COOLING FAN ENABLE COOLING FAN CTRL SOL VALVE CTRL COOLANT MTR CTRL COOLANT MTR CTRL COOLING FANS SYSTEM COOLING FANS SYSTEM AIR CONDITIONING SYSTEM FAN CONTROL SIGNAL FUEL DOOR LCK/UNLCK REF COOLANT MOTOR ENABLE FUEL DOOR LCK/UNLCK SIG FUSE 6 GMLAN SERIAL DATA GRY/LT GRN WIRE HOT AT ALL TIMES HYBRID/EV BATTERY PACK COOLANT PUMP (FRONT OF ENGINE COMPT, BEHIND RADIATOR) HYBRID/EV POWERTRAIN CONTROL MODULE 2 (UNDER FRONT PASSENGER'S SEAT) IGN 1 VOLT IND CTRL LOGIC LT BLU WIRE LT BLU/BLK WIRE LT BLU/BRN WIRE LT BLU/GRY WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/VIO WIRE MODE MTR LOW CTRL MOTOR FEEDBACK SIG PROXIMITY STATUS SIGNAL 1 MTR CTRL MTR ENABLE MTR FEED- BACK SIG MTR FEEDBACK SIGNAL NCA WIRE PORT DOOR SENS SIG PORT DOOR WAKEUP SIG RED/VIO WIRE RED/YEL WIRE TO HYBRID/EV BATTERY PACK (DIAGRAM 6 OF 13) TO HYBRID/EV BATTERY PACK (DIAGRAM 8 OF 13) TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE VIO/GRY WIRE VIO/LT BLU WIRE VIO/YEL WIRE WAKEUP SERIAL DATA PORT DOOR RLY CTRL SERIAL DATA 2 WHT WIRE WHT/BRN WIRE WHT/LT BLU WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL/GRY WIRE YEL/LT BLU WIRE YEL/LT GRN WIRE YEL/VIO WIRE

BATTERY CHARGING SYSTEM NEGATIVE CONTACTOR BATTERY CHARGING SYSTEM POSITIVE CONTACTOR BATTERY ENERGY CONTROL BLK WIRE BRN WIRE BRN/LT GRN WIRE FROM BATTERY CHARGER (DIAGRAM 5 OF 13) FROM HYBRID POWERTRAIN CONTROL MODULE (DIAGRAM 3 OF 13) FROM HYBRID POWERTRAIN CONTROL MODULE 2 FROM HYBRID POWERTRAIN CONTROL MODULE 2 (DIAGRAM 3 OF 13) FUSE GRY WIRE GRY/LT BLU WIRE HEATER TRANSISTOR HYBRID/EV BATTERY CONTACTOR ASSEMBLY HYBRID/EV BATTERY COOLANT HYBRID/EV BATTERY MULTIFUNCTION CONTACTOR HYBRID/EV BATTERY NEGATIVE CONTACTOR HYBRID/EV BATTERY PACK (UNDER CENTER OF VEHICLE) HYBRID/EV BATTERY PACK COOLANT HEATER HYBRID/EV BATTERY PACK FUSE FUSE INSULATOR HYBRID/EV BATTERY POSITIVE CONTACTOR HYBRID/EV BATTERY PRECHARGE RESISTOR HYBRID/EV BATTERY PRECHARGE TRANSISTOR LOGIC LOGIC POWER INVERTER MODULE (LEFT SIDE OF ENGINE COMPT) LT GRN WIRE LT GRN/LT BLU WIRE MODULE MODULE (DIAGRAM 5 OF 13) NCA WIRE NEG STATUS ORG/ WIRE ORG/BLK WIRE ORG/YEL WIRE PNK WIRE POS STATUS POWER MODULE (DIAGRAM 5 OF 13) RED WIRE TO HYBRID/EV BATTERY MODULE 1 (DIAGRAM 9 OF 13) TO HYBRID/EV BATTERY MODULE 9 (DIAGRAM 13 OF 13) VIO WIRE VIO/GRY WIRE VIO/WHT WIRE WHT/BRN WIRE WHT/VIO WIRE YEL/VIO WIRE