Chevrolet Volt I (2010-2015) serial data Wiring diagrams

36 37 HI SPD GMLAN SERIAL DATA + HI SPD GMLAN SERIAL DATA - ABS MDL FUSE ABS MTR FUSE ABS/RESS/ CHRGR FUSE APPLY SW VOLT REF APPLYSWITCH SIG BLK WIRE BLK/GRY WIRE BLK/LT BLU WIRE BLK/VIO WIRE BLK/YEL WIRE BRAKE IND BRAKE PRESSURE MODULATOR BRK PDL TRAVEL SENS 1 SIG BRK PDL TRAVEL SENS 2 SIG BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DISPLAY ELECTRONIC BRAKE CONTROL MODULE (PART OF BRAKE MASTER CYLINDER ASSEMBLY) GROUND GRY WIRE GRY/BLK WIRE HI SPD GMLAN SERIAL DATA + HI SPD GMLAN SERIAL DATA - HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT FRONT WHEEL SPEED SENSOR (INSIDE LEFT FRONT WHEEL HUB) LEFT REAR WHEEL SPEED SENSOR (INSIDE LEFT REAR WHEEL HUB) LF WHEEL SPD SENS SIG LO REF LOGIC INSTRUMENT CLUSTER LT BLU WIRE LT BLU/BLK WIRE LT BLU/RED WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/BRN WIRE LT GRN/GRY WIRE NCA WIRE PARKING BRAKE CONTROL MODULE (BEHIND LEFT SIDE OF REAR BUMPER) POWER DISTRIBUTION SYSTEM RED/BRN WIRE RED/WHT WIRE RELEASE SW VOLT REF RELEASE SWITCH SIG RF WHEEL SPD SENS SIG RIGHT FRONT WHEEL SPEED SENSOR (INSIDE RIGHT FRONT WHEEL HUB) RIGHT REAR WHEEL SPEED SENSOR (INSIDE RIGHT REAR WHEEL HUB) SERIAL DATA SWITCH SIG TCS/ ESC IND UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO WIRE VIO/BRN WIRE VIO/GRY WIRE VOLT REF WHT WIRE WHT/LT BLU WIRE YEL 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

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

"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

1 2 NETWORK BUS 4 RR DOOR AJAR SW SIG 2 1 LR DOOR AJAR SW SIG NETWORK BUS 4 2500 2501 COMPUTER DATA LINES SYSTEM 2501 2500 COMPUTER DATA LINES SYSTEM 29 43 SERIAL DATA(+) SERIAL DATA(-) 5 6 NETWORK BUS 3 RF DOOR AJAR SW SIG 6 4 LF DOOR AJAR SW SIG NETWORK BUS 3 64 27 FUEL LVL SENS SIG LO REF BLK WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BODY CONTROL MODULE (UNDER RIGHT SIDE OF DASH) BREAKOUT) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH (CENTER REAR OF DRIVER'S DOOR) DRIVER WINDOW MOTOR (DRIVER'S DOOR) ENGINE CONTROL MODULE (LEFT FRONT CORNER OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE OIL PRESSURE SWITCH (TOP LEFT SIDE OF ENGINE) FUEL PUMP, SENDER ASSEMBLY (TOP OF FUEL TANK) GMLAN SERIAL DATA - GMLAN SERIAL DATA + GRY WIRE GRY/BLK WIRE HYBRID POWERTRAIN CONTROL MODULE 2 (UNDER FRONT PASSENGER'S SEAT) LEFT REAR DOOR LATCH (CENTER REAR OF LEFT REAR DOOR) LEFT REAR WINDOW SWITCH LIFT GATE AJAR SW SIG 1 LIFTGATE LATCH ASSEMBLY (BOTTOM CENTER OF LIFTGATE) LO REF LT BLU WIRE LT BLU/BLK WIRE LT BLU/GRY WIRE LT BLU/VIO WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/YEL WIRE OIL PRESS SW SIG PARK BRAKE CONTROL SWITCH PARK BRK APPLY SW SIG PARK BRK RELEASE SW SIG PARK BRK SW SPLY VOLT PARK BRK APPLY SW VOLT REF PARKING BRAKE CONTROL MODULE (BEHIND LEFT SIDE OF REAR BUMPER) PASSENGER DOOR LATCH (CENTER REAR OF FRONT PASSENGER'S DOOR) PASSENGER WINDOW SWITCH RED/BRN WIRE RIGHT REAR DOOR LATCH (CENTER REAR OF RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH SERIAL DATA TEMP SENS SIG VIO/GRY WIRE VOL REF PARK BRK SW SIG WHT WIRE YEL WIRE YEL/LT BLU WIRE

1 2 3 SIG GND 4 5 6 7 8 9 10 LANE DEPARTURE WARNING IND CTRL BAT+ BCM/EXT LIGHTS BLK WIRE BODY CONTROL MODULE (UNDER RIGHT SIDE OF DASH) BREAKOUT) COMPUTER DATA LINES LOGIC SYSTEM COMPUTER DATA LINES SYSTEM DK GRN WIRE FORWARD COLLISION IND FORWARD COLLISION SWITCH FRONTVIEW CAMERA MODULE (TOP CENTER OF WINDSHIELD) FUSE GROUND DISTRIBUTION SYSTEM HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT CLUSTER LANE DEPARTURE WARNING LANE DEPARTURE WARNING IND LEFT INSTRUMENT PANEL FUSE BLOCK (BEHIND LEFT END OF DASH) LEFT STEERING WHEEL CONTROLS SWITCH LO SPD GMLAN SERIAL DATA LT GRN WIRE RED/BRN WIRE RED/YEL WIRE SERIAL DATA STEERING WHEEL AIR BAG COIL (TOP OF STEERING COLUMN) STEERING WHEEL RESISTOR LADDER SIG 2 WHT WIRE

2 1 GND BATT POSITIVE VOLT BLK WIRE BODY CONTROL MODULE (UNDER RIGHT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM DISPLAY GRY/BLK WIRE HOOD AJAR SW SIG IMMOBILIZER ANTENNA (BEHIND CENTER OF DASH) IMMOBILIZER CONTROL MODULE (BEHIND CENTER OF DASH) IMMOBILIZER RETURN IMMOBILIZER SPLY VOLT INSTRUMENT CLUSTER LINEAR INTERCONNECT LINEAR INTERCONNECT NETWORK 11 LO SPD GM LAN SERIAL DATA LOGIC LT BLU WIRE LT GRN BRN/ WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/VIO WIRE NCA WIRE NETWORK 11 RED/BRN WIRE SERIAL DATA WHT WIRE YEL WIRE

ASSEMBLY BATTERY BATTERY CHARGER (RIGHT FRONT CORNER OF ENGINE COMPT) BATTERY CHARGER CONTROL MODULE BLK WIRE BLK/BRN WIRE BLK/VIO WIRE BODY CONTROL MODULE (UNDER RIGHT CHARGE PORT DOOR RELAY CHRG DR FUSE CHRGR FUSE COMPUTER DATA LINES SYSTEM CURRENT SENSOR FROM HYBRID/EV POWERTRAIN CONTROL MODULE 2 FUSE GROUND GROUND BATT POS VOLT GRY/LT GRN WIRE GRY/VIO WIRE HI VOLT BATT (+) HIGH VOLT BATT (-) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HYBRID/EV BATTERY CONTACTOR HYBRID/EV BATTERY PACK (UNDER CENTER OF VEHICLE) HYBRID/EV BATTERY PACK CONNECTOR JUMPER HARNESS HYBRID/EV BATTERY PACK FUSE COVER HYBRID/EV BATTERY PACK FUSE INSULATOR IGN 1 VOLT IGN 1 VOLT HIGH SERIAL DATA LOW SERIAL DATA IND CTRL LOW REF 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 MANUAL SERVICE DISCONNECT MANUAL SERVICE RECEPTABLE MODULE NCA WIRE NOT USED NOT USED ORG/ WIRE ORG/BLK WIRE ORG/RED WIRE REAR CAMERA FUSE RED/BRN WIRE RED/VIO WIRE RED/YEL WIRE SENSOR SERIAL DATA SERIAL DATA (-) SERIAL DATA (+) SIDE OF DASH) SIG SUPPLY VOLTAGE TO HYBRID BATTERY PACK (DIAGRAM 8 OF 13) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO WIRE VIO/LT GRN WIRE VIO/WHT WIRE VOLTAGE AC LINE 1 VOLTAGE AC GROUND LOW SERIAL DATA W/ REAR VIEW CAMERA WAKEUP DATA 2 WAKUP SERIAL DATA 2 COMMUNICATION ENABLE WHT WIRE WHT/BRN WIRE WHT/YEL WIRE YEL/VIO WIRE