GMC Hummer EV I (2021-2024) blk/gry Wiring diagrams

1 SER DATA AUTO SAR CAN BUS AUTO SAR CAN BUS (+) 2 SER DATA AUTO SAR CAN BUS (+) 3 SER DATA AUTO SAR CAN BUS (+) 4 SER DATA AUTO SAR CAN BUS (+) 5 SER DATA AUTO SAR CAN BUS (+) 8 SER DATA AUTO SAR CAN BUS (-) 1 SER DATA AUTO SAR CAN BUS (-) 8 SER DATA SIG GND AUTOSAR CAN BUS (-) 5 BATT POS VOLT BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/ORG WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BUS (-) SER DATA ETHERNET BUS 3 (+) GEAR SHIFT CONTROL MODULE (IN FLOOR CONSOLE) GRN WIRE GRN/BLK WIRE GRN/VIO WIRE HOT AT ALL TIMES IGNITION MAIN RELAY ON/OFF VEHICLE SWITCH POWERTRAIN POWERTRAIN CAN PRIVATE SER DATA RADIO CONTROL RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK SENS BUS ENABLE SER DATA SERIAL DATA GATEWAY MODULE (LEFT CENTER OF DASH) VIDEO PROCESSING MODULE (UNDER RIGHT SIDE OF DASH) VIO/GRN WIRE WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE

1 SER DATA AUTO SAR CAN BUS AUTOSAR CAN BUS (+) 6 SER DATA AUTOSAR CAN BUS (-) 3 AUTOSAR CAN BUS (-) 5 SER DATA AUTOSAR CAN BUS (-) 7 SER DATA BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CAN BUS (-) 1 SER DATA CAN BUS (-) 2 SER DATA CHASSIS CONTROL MODULE DRIVER MONITORING SYSTEM MODULE ETHERNET BUS 1 ENABLE SIG ETHERNET BUS IR (+) ETHERNET BUS IT (+) GRN WIRE GRN/BLK WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE LEFT "C" PILLAR) PARKING ASSIST CONTROL MODULE PASSENGER RESTRAINTS OCCUPANT CLASSIFICATION SYSTEM MODULE PASSIVE START SW 2 LO REF PASSIVE START SW SIG 2 PRIVATE SER DATA PRESENTATION RED/YEL WIRE RUN/CRANK RLY COIL CTRL SER DATA VIO WIRE VIO/GRN WIRE WHT WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (+) 5 SERIAL DATA BATT POS VOLT BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLU/GRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DISPLAY GRN WIRE GRN/BLU WIRE GRY/RED WIRE HANDWHEEL CHANNEL A ANGLE POS SENS SENT SIG HANDWHEEL CHANNEL A HIGH REF HANDWHEEL CHANNEL A LOW REF HANDWHEEL CHANNEL A TORQUE PRESS SENS 1 SENT SIG HANDWHEEL CHANNEL A TORQUE PRESS SENS 2 SENT SIG HANDWHEEL CHANNEL B ANGLE POS SENS SENT SIG HANDWHEEL CHANNEL B HIGH REF HANDWHEEL CHANNEL B LOW REF HANDWHEEL CHANNEL B TORQUE PRESS SENS 1 SENT SIG HANDWHEEL CHANNEL B TORQUE PRESS SENS 2 SENT SIG HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LOGIC POS A POS B POWER STEERING ASSIST MOTOR POWER STEERING CONTROL MODULE (ON FRONT STEERING RACK) REAR POWER STEERING CONTROL MODULE (ON CENTER OF REAR STEERING RACK) RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE STEERING GEAR TORQUE, ANGLE SENSOR (UNDER VEHICLE, ON FRONT STEERING RACK) VIO WIRE WHT WIRE YEL/GRN WIRE

AUTOMATIC LEVEL CONTROL AIR COMPRESSOR AUTOMATIC LEVEL CONTROL MODULE (REAR OF RIGHT REAR WHEELWELL) AUTOMATIC LEVEL CONTROL SOLENOID VALVE AUTOSAR CAN BUS (-) 3 SER DATA BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/RED WIRE BRN/WHT WIRE CAN BUS (-) 5 COMPUTER DATA LINES SYSTEM DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/WHT WIRE GROUND GRY/BRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT FRONT SUSPENSION AUTOMATIC FORWARD LIGHTING POSITION SENSOR LEFT REAR SUSPENSION AUTOMATIC FORWARD LIGHTING LEVELING SYSTEM POSITION SENSOR LEVELING COMPRESSOR MTR LO REF LH FRT SUSPENSION POSITION SENS LOW REF LH FRT SUSPENSION POSITION SENS SIG LH FRT SUSPENSION POSITION SENS VOLT REF LH RR SUSPENSION POSITION SENS LOW REF LH RR SUSPENSION POSITION SENS SIG LH RR SUSPENSION POSITION SENS VOLT REF LOGIC NCA WIRE RED/BLU WIRE RED/BRN WIRE RH FRT SUSPENSION POSITION SENS LOW REF RH FRT SUSPENSION POSITION SENS SIG RH FRT SUSPENSION POSITION SENS VOLT REF RH RR SUSPENSION POSITION SENS LOW REF RH RR SUSPENSION POSITION SENS SIG RH RR SUSPENSION POSITION SENS VOLT REF RIGHT FRONT SUSPENSION 4 CORNER LEVELING SYSTEM POSITION SENSOR RIGHT REAR SUSPENSION 2/4 CORNER AIR LEVELING SYSTEM POSITION SENSOR VEHICLE LEVEL CONTROL EXHAUST SOLENOID VALVE CONTROL VEHICLE LEVEL CTRL COMPRESSOR MTR CTRL WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

BATT POSITIVE VOLT BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BODY CTRL MODULE LIN BUS 11 BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE CO-DRIVER HEATED BACK THERMISTOR LO REF COMPUTER DATA LINES SYSTEM DRIVER FRONT SEAT BACK HEATER DRIVER FRONT SEAT CUSHION HEATER DRV HEATED SEAT THERMISTOR LO REF DRV SEAT BACK HEATING ELEMENT CTRL DRV SEAT BLOWER MTR CTRL 1 DRV SEAT HEATING ELEMENT CTRL DRV SEAT HEATING ELEMENT LO REF FRONT SEAT HEATER VENT CONTROL MODULE (UNDER PASSENGER SEAT) GRN/VIO WIRE GRY/BLK WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK NCA WIRE PASS HEATED SEAT THERMISTOR LO REF PASS SEAT BACK HEATING ELEMENT CTRL PASS SEAT BLOWER MTR CTRL 1 PASS SEAT HEATING ELEMENT CTRL PASS SEAT HEATING ELEMENT LO REF PASS SEAT HEATING TEMPERATURE SENS SIG DRV SEAT HEATING TEMPERATURE SENS SIG RED/BRN WIRE RED/GRN WIRE VIO/WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE YEL/GRY WIRE

BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BRN/BLU WIRE DRIVER FRONT SEAT BACK VENTILATION BLOWER DRIVER FRONT SEAT CUSHION VENTILATION BLOWER GRN/VIO WIRE GRY/BLK WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED IGN LOGIC NCA WIRE PASSENGER FRONT SEAT BACK HEATER PASSENGER FRONT SEAT BACK VENTILATION BLOWER PASSENGER FRONT SEAT CUSHION HEATER PASSENGER FRONT SEAT CUSHION VENTILATION BLOWER RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK VIO/BLU WIRE VIO/WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE

AUTOSAR CAN BUS (+) 5 SERIAL DATA BACKUP LAMP CONTROL BATTERY POSITIVE VOLTAGE BK COAX (AM/FM) ANTENNA RF SIG BK USB INFOTAINMENT DISPLAY SIG BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BLU/WHT WIRE COAX COAX CU COAXIAL ANTENNA XM SIG COMPUTER DATA LINES SYSTEM DISPLAY ENGINE CONTROLS SYSTEM ETHERNET BUS 2 (-) ETHERNET BUS 4 (-) ETHERNET BUS 6 (-) GRN WIRE GRN/WHT WIRE GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES LOGIC LVDS LVDS GY INFOTAINMENT DISPLAY SIG MICROPHONE (-) SIG (PINS: 13 TO 29 NOT USED) NAVIGATION SYSTEM PERFORMANCE DATA RECORDER DIFFERENTIAL LOW VOLTAGE OG RADIO RADIO CONTROL RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK SIG GROUND SIGNALING LVDS SIG COAX BG COAXIAL ANTENNA WLAN SIG STEERING WHEEL RADIO FAVORITES SWITCH STEERING WHEEL RADIO VOLUME SWITCH TAN WIRE USB VIO/YEL WIRE VOICE RECOGNITION AUDIO (-) CTRL MICROPHONE (+) SIG VOICE RECOGNITION AUDIO SIG VOLUME- WHT WIRE YEL WIRE

1-CU 1-VT 2-BK 2-CU 2-VT 3-BK AUXILIARY WIRELESS COMMUNICATION INTERFACE ANTENNA BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE CELL CELL/GPS COAX COMPUTER DATA LINES SYSTEM GRY WIRE GRY/YEL WIRE LOGIC MUTE NCA WIRE NEXT PREVIOUS RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RIGHT FRONT COMMUNICATION INTERFACE MODULE MICROPHONE RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SELECT TALK TAN WIRE USB VIO/YEL WIRE YEL WIRE

AUDIO (-) CTRL AUTOSAR CAN BUS BATTERY POSITIVE VOLT BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/WHT WIRE CELL CELL/GPS CELLULAR TELEPHONE COAX COMMUNICATION CENTER CALL SWITCH COMPUTER DATA LINES SYSTEM GREEN LED IND CTRL GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY/YEL WIRE LOGIC LOW REFERENCE MICROPHONE LOW REFERENCE MICROPHONE SIG NCA WIRE RED LED IND CTRL WIRE RED/BLU WIRE RED/YEL WIRE SIGNAL GND SOS TECT TELEMATICS SW TELEMATICS SW SIG TELEMATICS SW SUPPLY VOLT USB USB 2 PORT RECEPTACLE VOICE RECOGNITION VOICE RECOGNITION AUDIO SIG YEL WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/VIO WIRE

AUTOMATIC TRANSMISSION AUXILIARY FLUID PUMP 1 AUTOMATIC TRANSMISSION AUXILIARY FLUID PUMP 2 AUTOSAR CAN BUS (-) 2 SER DATA BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVE MOTOR CONTROL MODULE 1 DRIVE MOTOR CONTROL MODULE 2 DRIVE UNIT SUMP OIL TEMP SENSOR 2 LOW REFERENCE DRIVE UNIT SUMP OIL TEMP SENSOR 2 SIGNAL ENGINE WIRING HARNESS JUNCTION BLOCK FRONT DIFFERENTIAL LOCKING ACTUATOR FRONT DRIVE UNIT FLUID TEMPERATURE SENSOR FRONT ELECTRIC DRIVE TRANSMISSION MODULE GRN/BLU WIRE HIGH SPD SER DATA (+) (1) HIGH SPD SER DATA (-) 3 HOT AT ALL TIMES LOGIC MANUAL SHIFT SHAFT MOTOR NCA WIRE PRNDL A SIGNAL PRNDL B SIGNAL PRNDL P SIGNAL REAR DRIVE UNIT FLUID TEMPERATURE SENSOR REAR ELECTRIC DRIVE TRANSMISSION MODULE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE TRANSMISSION OIL PUMP 2 CONTROL TRANSMISSION OIL PUMP 2 DIAGNOSTIC FEEDBACK SIGNAL TRANSMISSION OIL PUMP CONTROL TRANSMISSION OIL PUMP DIAGNOSTIC FEEDBACK SIGNAL TRANSMISSION PARK POSITION SENSOR VIO/BLK WIRE VIO/RED WIRE VIO/WHT WIRE VOLTAGE SUPPLY A WHT WIRE WHT/BLK WIRE WHT/GRY WIRE YEL/GRY WIRE