Chevrolet Volt I (2010-2015) computer data lines 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 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

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

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

AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/BRN WIRE BODY CONTROL MODULE (UNDER RIGHT SIDE OF DASH) BRAKE APPLY SENS SUPPLY VOLTAGE BRAKE APPLY SENSOR SIGNAL BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE COLUMN LCK POS SIG COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY FUSE HI SPEED GMLAN SERIAL DATA BUS - LOGIC LOW REF LT BLU WIRE LT BLU/YEL WIRE LT GRN WIRE NCA WIRE PARK LOCK SOLENOID CONTROL PARK POSITION SWITCH RED WIRE RED/LT BLU WIRE SERIAL DATA SYSTEM TRANS- MISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR VIO/BLK WIRE WHT WIRE WHT/VIO WIRE YEL WIRE

AIR BAG FUSE AIR BAG IND AIR BAG ON IND BETWEEN FOLLOWING PINS: 1-2, 3-4, 5-6, 7-8, 21-22, 23-24) BLK WIRE BRN/ORG WIRE CLSTR FUSE COMPUTER DATA COMPUTER DATA LINES DISPLAY DK GRN WIRE DRIVER KNEE AIR BAG (BOTTOM LEFT SIDE OF DASH) DRV KNEE MOD HI CTRL DRV KNEE MOD LO CTRL GRY/ORG WIRE HOT AT ALL TIMES HOT W/ IGNITION RUN RELAY ENERGIZED IGN 1 VOLT INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER CENTER CONSOLE) INSTRUMENT CLUSTER LEFT INSTRU- MENT PANEL FUSE BLOCK (BEHIND LEFT END OF DASH) LINES SYSTEM LO SPD GMLAN LOGIC LOW SPD GMLAN SERIAL DATA LOW SPEED COMPUTER DATA LINES GMLAN SERIAL DATA SYSTEM LT BLU WIRE LT GRN WIRE MIRRORS SYSTEM NCA WIRE OF DASH) ORG/BLK WIRE ORG/LT BLU WIRE ORG/LT GRN WIRE ORG/VIO WIRE ORG/WHT WIRE PASS KNEE MOD HI CTRL PASS KNEE MOD LO CTRL PASSENGER AIR BAG DISABLE INDICATOR PASSENGER AIR BAG OFF IND PASSENGER KNEE AIR BAG (BOTTOM RIGHT SIDE OF DASH) PASSENGER PRESENCE DETECTION MODULE (UNDER REAR OF PASSENGER'S SEAT) RED WIRE RED/BLK WIRE RED/GRY WIRE RED/LT GRN WIRE RIGHT FRONT IMPACT SENSOR (RIGHT SIDE OF RADIATOR SUPPORT) SEAT BELT IND SHORTING BAR SHORTING BAR SEAT BELT ON IND SHORTING SHORTING BAR BAR STEERING WHEEL AIR BAG STEERING WHEEL AIR BAG COIL SYSTEM UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO WIRE VIO/GRY WIRE VIO/LT GRN WIRE VIO/WHT WIRE WHT/ORG WIRE YEL/ORG WIRE