Chevrolet Volt I (2010-2015) low ref Wiring diagrams

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

5 VOLT REF ACCESS WAKUP SRL DATA ACCM COOL FUSE FAN 1 FUSE B+ VOLT BATT + BLK WIRE BLK/BRN WIRE BRN/RED WIRE CABIN PMP/VLV FUSE CHCM MISC FUSE RUN/CRNK FUSE COMPUTER DATA LINES SYSTEM COOL FAN 2 FUSE COOLANT HEATER CONTROL MODULE (REAR OF ENGINE COMPT) COOLANT TEMP SENS SIG COOLING FAN SPD SIG CTRL SIG ENGINE CONTROL MODULE (LEFT FRONT CORNER OF ENGINE COMPT) GMLAN GRN WIRE GRY/LT BLU WIRE GRY/LT GRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN ENERGIZED LOGIC LOW REF LOW SPD LT BLU WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PRESS SENS SIG RED WIRE RED/GRY WIRE RED/LT BLU WIRE RED/WHT WIRE SERIAL DATA UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/DK BLU WIRE WHT WIRE WINDSHIELD TEMPERATURE, INSIDE MOISTURE SENSOR (TOP CENTER OF WINDSHIELD) YEL/LT BLU WIRE YEL/RED WIRE

5 VOLT REF 63 31 60 33 32 5 VOLT REF LOW PRESS SENS SIG LOW REF LOW REF HI TEMP SENS SIG 72 52 9 HTR SOL VALVE CTRL COOLING FAN CTRL SIG HTR SOL VALVE CTRL A/C LOW SIDE PRESSURE SENSOR (LEFT SIDE OF ENGINE, ON A/C LINE) A/C REFRIGERANT LOW SIDE TEMPERATURE SENSOR (LEFT FRONT OF ENGINE, ON A/C LINE) A/C REFRIGERANT PRESSURE SENSOR (RIGHT FRONT OF ENGINE COMPT) ACCESS WAKUP SERIAL DATA 2 B+ VOLT BLK WIRE BLK/BRN WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BLK/VIO WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM COOLANT VALVE POSITION SENS SIG DATA (+) (1) HI SPD GMLAN ENGINE COOLANT TEMPERATURE SENSOR (LEFT REAR OF CYLINDER HEAD) FUSE FUSE HI SPD GMLAN DATA (-) (1) HI VOLT BATT (+) HYBRID/EV POWERTRAIN CONTROL MODULE 1 HYBRID/EV POWERTRAIN CONTROL MODULE 2 (UNDER FRONT PASSENGER'S LOGIC LOW REF LOW SPD SERIAL DATA LT BLU WIRE LT BLU/RED WIRE LT BLU/VIO WIRE LT GRN WIRE NCA WIRE ORG/ WIRE RED/WHT WIRE RUN/CRANK IGNITION 1 VOLT SEAT) VIO/BRN WIRE VIO/DK BLU WIRE WHT WIRE WHT/LT BLU WIRE WHT/LT GRN WIRE WHT/RED WIRE YEL/LT BLU WIRE

1 2 3 INTERIOR LAMP CTRL INADVERTENT POWER CTRL BACKUP LAMP SPLY VOLT ACCESSORY VOLTAGE IGNITION 1 VOLTAGE ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM CRUISE CONTROL SYSTEM APO/EXT LIGHTS BCM/EXT LIGHTS BCM/EXT LIGHTS FUSE BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BODY CONTROL MODULE BRN WIRE BRN/LT GRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM SHIFT INTERLOCK SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS DRIVER DR LK SW LOCK SIG EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SYSTEM WIPER/WASHER SYSTEM EXTERIOR LIGHTS SYSTEMS FUSE GRY WIRE GRY/BLK WIRE GRY/LT GRN WIRE GRY/WHT WIRE HDLP SW FLASH TO PASS SIG HORN SWITCH SIGNAL HEADLAMP SW ON SIG HEADLAMPS OFF SIG CTRL HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HORNS SYSTEM HI SPD GMLAN SERIAL DATA + HI SPD GMLAN SERIAL DATA - HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM INTERIOR LIGHTS SYSTEM INTERCONNECT NETWORK BUS 4 LOW SPD GMLAN SERIAL DATA INTERIOR LAMP DEFEAT SW SIG INTERIOR LIGHTS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS LEFT INSTRUMENT PANEL FUSE BLOCK (BEHIND LEFT END OF DASH) LO SPD GMLAN SERIAL DATA LOW REF LR CHILD SECURITY MTR LOCK STATUS SIG SHIFT POSITION SIG LT BLU WIRE LT BLU/BLK WIRE LT BLU/BRN WIRE LT BLU/LT GRN WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/BRN WIRE LT GRN/GRY WIRE LT GRN/RED WIRE LT GRN/VIO WIRE LT GRN/WHT WIRE LT HDLP FUSE POWER DISTRIBUTION SYSTEM RED WIRE RED/BRN WIRE RED/LT BLU WIRE RED/LT GRN WIRE RED/VIO WIRE RED/YEL WIRE REMOTE FUNCTION SPLY VOLT HAZARD SWITCH SIGNAL REMOTE FUNCTION ACTUATOR RF TURN SIGNAL SW SIG WINDSHIELD WASHER SW SIG RR CHILD SECURITY MTR LOCK STATUS SIG COURTESY LAMP SW SIG RR TURN LP FEEDBACK SIG IP LP DIMMING CTRL RT HDLP FUSE SHIFT INTERLOCK SYSTEM INTERIOR LIGHTS SYSTEM VIO WIRE VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/LT BLU WIRE WHT/RED WIRE WHT/VIO WIRE WINDSHIELD WIPER SW HI SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/LT BLU WIRE YEL/LT GRN WIRE

ACCESS WAKUP SRL DATA B+ VOLT BLK WIRE BLK/BRN WIRE COMPUTER DATA LINES SYSTEM COOL FAN 1 FUSE COOL FAN 2 FUSE COOLING FAN CTRL SIG COOLING FAN SPD SIG COOLANT TEMP SENS SIG CTRL SIG ENGINE CONTROL MODULE (LEFT FRONT CORNER OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR (LEFT REAR OF CYLINDER HEAD) GRN WIRE HOT AT ALL TIMES HTR SOL VALVE CTRL HYBRID/EV POWERTRAIN CONTROL MODULE 2 (UNDER FRONT PASSENGER'S SEAT) LEFT COOLING FAN MOTOR (BEHIND LEFT SIDE OF RADIATOR) LOW REF LOW SPD SERIAL DATA LT BLU WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE RED WIRE RED/LT BLU WIRE RED/WHT WIRE RIGHT COOLING FAN MOTOR (BEHIND RIGHT SIDE OF RADIATOR) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE

B+ VOLT BLK WIRE BLK/YEL WIRE BRN/LT BLU WIRE BRN/LT GRN WIRE COMPUTER DATA LINES SYSTEM COOLING FAN FAN CTRL FAN ENABLE FAN FEED- BACK SIG FUSE HOT AT ALL TIMES APM FAN FUSE HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) HYBRID/EV POWERTRAIN CONTROL MODULE 2 (UNDER FRONT PASSENGER'S SEAT) LOW REF LOW SPD SERIAL DATA LT GRN WIRE LT GRN/VIO WIRE MTR CTRL MTR ENABLE MTR FEED- BACK SIG REAR BODY FUSE BLOCK (LEFT REAR CORNER OF LUGGAGE COMPT) RED/BRN WIRE RED/LT BLU WIRE SENS SIG VIO/LT BLU WIRE YEL/GRY WIRE YEL/LT GRN WIRE

"CHECK ENGINE" IND CTRL 5 VOLT REF A/C RFGT PR SENS SIG ACC PEDAL POS SIG 1 ACC PEDAL POS SIG 2 AIR PUMP FUSE AIR SOL FUSE BATTERY POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/LT BLU WIRE BLK/VIO WIRE BLK/WHT WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CCM/VICM FUSE COMPUTER DATA LINES SYSTEM CONNECTOR BREAKOUT) COOLING FANS SYSTEM COOLT TEMP SENS 2 SIG CRUISE/ETC/TCC BRK SIG ECM FUSE ECM FUSE EMIS FUSE ECM/TCM FUSE ENGINE CONTROL MODULE (ECM) (LEFT FRONT CORNER OF ENGINE COMPT) ENGINE CONTROLS IGNITION RELAY ENGINE MAIN RLY CTRL F P PRIMARY RLY CTRL FAN RLY CTRL GRY/LT BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ IGN MAIN RELAY ENERGIZED HS GMLAN - 1 HS GMLAN - 3 IGN COIL FUSE IN AIR TEMP SENS SIG LINES SYSTEM COMPUTER DATA LOW REF LOW SPD COOLING LT BLU WIRE LT BLU/BLK WIRE LT BLU/BRN WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/LT BLU WIRE LT GRN/WHT WIRE MAS AIR FLOW SENS SIG PUMP RLY COIL CTRL RED/BRN WIRE RED/LT GRN WIRE RED/YEL WIRE RUN/CRANK IGN 1 VOLT SECONDARY AIR INJECTION PUMP RELAY (CALIFORNIA) SECONDARY AIR INJECTION SOLENOID VALVE RELAY (CALIFORNIA) SNSR SIG SOL RLY COIL CTRL TEMPERATURE SENSOR BREAKOUT) UNDERHOOD FUSE BLOCK VIO/BRN WIRE VIO/GRY WIRE VIO/LT BLU WIRE VIO/WHT WIRE VIO/YEL WIRE WAKEUP SERIAL DATA 2 WHT WIRE WHT/BLK WIRE WHT/LT BLU WIRE WHT/RED WIRE YEL/BLK WIRE YEL/WHT WIRE

5 VOLT REF AUXILIARY UNDERHOOD FUSE BLOCK (LEFT REAR OF ENGINE COMPT) BATT + BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES FUEL PRESS SENS SIG FUEL PUMP FUEL PUMP CONTROL MODULE (RIGHT SIDE OF LUGGAGE COMPT) FUEL PUMP CTRL FUEL PUMP RLY CTRL FUEL PUMP, LEVEL SENSOR ASSEMBLY (TOP OF FUEL TANK ASSEMBLY) GRY WIRE GRY/LT BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES BATTERY FUSE BLOCK FSCM 5 (ON BATTERY POSITIVE POST) HS GMLAN - 1 HYBRID/EV POWERTRAIN CONTROL MODULE IGN 1 VOLT IGNITION COIL MODULE (TOP REAR OF ENGINE) LOW REF LT BLU WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/LT BLU WIRE LT GRN/YEL WIRE NCA WIRE POWER INVERTER MODULE (LEFT SIDE OF ENGINE COMPT) RED WIRE RED/LT GRN WIRE RED/YEL WIRE SERL DATA COMM ENBL SHIELD SYSTEM UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/BRN WIRE VIO/GRY WIRE VIO/LT BLU WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/LT BLU WIRE YEL/LT BLU WIRE YEL/WHT WIRE

5 VOLT REF LOW REF BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAMSHAFT CAM X SUP VOLT 1 CAMSHAFT POS EXHAUST SENS 1 CAMSHAFT POS IN SENS SPY VOLT 1 CAMSHAFT POS INTAKE SENS 1 CMP PHASER EXHAUST SOL 1 CMP PHASER INTAKE SOL 1 ENGINE CONTROL MODULE (ECM) (LEFT FRONT CORNER OF ENGINE COMPT) ENGINE COOLANT THERMOSTAT HEATER (LEFT FRONT OF ENGINE) GROUND GRY/LT BLU WIRE GRY/WHT WIRE GRY/YEL WIRE IGN CTRL (2) IGN CTRL (4) INSTRUMENT CLUSTER SYSTEM KNOCK SENSOR SIG 1 LOW REF LOW REF LOW REF LT BLU WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/LT BLU WIRE LT GRN/YEL WIRE POWERTRAIN MAIN RLY FUSE SPLY 1 LOW REF LOW REF OIL PRESSURE SW SIG THROTTLE BODY ASSEMBLY (ON INTAKE MANIFOLD ASSEMBLY) THROTTLE POSITION SENSOR SIG 1 THROTTLE POSITION SENSOR SIG 2 VIO/BLK WIRE VIO/BRN WIRE VIO/GRY WIRE VIO/LT BLU WIRE WHT/BLK WIRE YEL WIRE YEL/LT BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM TO HYBRID/EV BATTERY PACK (DIAGRAM 5 OF 13) BATT 3 (-) RLY CTRL BATT (-) RLY CTRL BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BRN/LT GRN WIRE BRN/YEL WIRE BUS HIGH SERIAL DATA BUS LOW SERIAL DATA CHARGE PORT DOOR OPEN REQUEST SWITCH COMPUTER DATA LINES SYSTEM COOLANT TEMP SENS SIG COOLING FANS SYSTEM EMPTY FUSE FUEL DOOR OPEN SIG GRY/LT BLU WIRE GRY/VIO WIRE GRY/WHT WIRE HIGH REF 5 VOLT REF 5 VOLT REF LOW REF HOT AT ALL TIMES HYBRID/EV BATTERY COOLANT LEVEL SWITCH (IN HYBRID/EV BATTERY COOLANT SURGE TANK) HYBRID/EV BATTERY PACK COOLANT CONTROL VALVE (RIGHT REAR OF ENGINE COMPT) HYBRID/EV POWERTRAIN CONTROL MODULE 2 (UNDER FRONT PASSENGER'S SEAT) INTERLOCK LOOP SIG 1 LOOP SIG 2 LOW REF LOW REF COOLANT VALVE SENS SIG FUEL DOOR STATUS SIG HOOD OPEN SWITCH SIG LOW REF HVAC MODE SENS SIG LT BLU WIRE LT BLU/BLK WIRE LT BLU/GRN WIRE LT BLU/LT GRN WIRE LT BLU/RED WIRE LT BLU/VIO WIRE LT BLU/YEL WIRE LT GRN/VIO WIRE LT GRN/YEL WIRE PORT DOOR SW SIG FUEL DOOR RELEASE SW SIG POWER INVERTER MODULE ASSEMBLY CABLE COVER PWM SIG BATT 1 (+) RLY CTRL BATT 2 (+) RLY CTRL REAR BODY FUSE BLOCK (LEFT REAR CORNER OF LUGGAGE COMPT) RED/LT BLU WIRE RED/WHT WIRE SENS SIG LOW REF LOW REF SERIAL DATA (-) SERIAL DATA (+) TO HYBRID/EV BATTERY PACK (DIAGRAM 5 OF 13) TO HYBRID/EV BATTERY PACK (DIAGRAM 8 OF 13) TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM ANTI-THEFT SYSTEM VIO WIRE VIO/BRN WIRE VIO/GRY WIRE VIO/RED WIRE WHT WIRE WHT/BRN WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/VIO WIRE