GMC Hummer EV I (2021-2024) grn/brn Wiring diagrams

AUTO SWITCH BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DISPLAY DRIVER HEATED SWITCH GRN/BLK WIRE GRN/BRN WIRE GRY/BRN WIRE HEATER AIR CONDITIONING CONDENSER REFRIGERANT FLOW VALVE HEATER, AIR CONDITIONING AUXILIARY CONTROL HIGH HEAT IND HYBRID/ELECTRIC VEHICLE PROPULSION SYSTEM COOLANT CONTROL VALVE 1 LOGIC LOW HEAT IND MEDIUM HEAT IND MODE SWITCH PASSENGER HEATED SWITCH REAR BLOWER MOTOR REAR BLOWER MOTOR CONTROL MODULE REAR PROGRAMMABLE MODE VALVE ACTUATOR RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE TEMPERATURE CONTROL SWITCH VENTILATING FAN SWITCH YEL/WHT WIRE

AC ELECTRIC AIR CONDITIONING COMPRESSOR CONTROL MODULE AIR CONDITIONING COMPRESSOR MOTOR AIR CONDITIONING REFRIGERANT TEMPERATURE SENSOR 5 AIR CONDITIONING REFRIGERANT TEMPERATURE SENSOR 6 AIR CONDITIONING W/ MOTOR COMPRESSOR BLK WIRE BLK/BRN WIRE BLU/BLK WIRE COMPRESSOR) COMPUTER COMPUTER DATA LINES SYSTEM DATA LINES ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GROUND GRY/YEL WIRE HOT AT ALL TIMES HYBRID/ELECTRIC VEHICLE ELECTRONICS COOLANT PUMP HYBRID/ELECTRIC VEHICLE PROPULSION SYSTEM COOLANT CONTROL VALVE 2 LIN BUS 4 LOGIC ORG/ WIRE ORG/BLK WIRE POSITIVE VOLT REAR PROGRAMMABLE TEMPERATURE VALVE ACTUATOR RED/BLU WIRE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE SYSTEM YEL/WHT WIRE

5 VOLT REF B 5 VOLT REF C AIR CONDITIONING REFRIGERANT PRESSURE, TEMPERATURE SENSOR 1 AIR CONDITIONING REFRIGERANT PRESSURE, TEMPERATURE SENSOR 2 AIR CONDITIONING REFRIGERANT PRESSURE, TEMPERATURE SENSOR 3 AIR CONDITIONING REFRIGERANT TEMPERATURE SENSOR 4 AMBIENT AIR TEMPERATURE SENSOR AUTOSAR CAN BUS (+) 2 SERIAL DATA BATT POS VOLT BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BATTERY ENERGY CONTROL MODULE 1 BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM COOLANT ELECTRIC HTR CTRL DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BRN WIRE GRN/GRY WIRE GRY/VIO WIRE GRY/YEL WIRE HI SIDE PRESS SENS 2 SIG HI SIDE PRESS SENS SIG HOT AT ALL TIMES HYBRID/ PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 5 INSTRUMENT PANEL CLUSTER CONTROL MODULE LOGIC LOW SIDE PRESS SENS SIG RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE SENS LOW REF (2) SENS LOW REF (3) SENS LOW REF 1 SENS LOW REF 4 SENS LOW REF 5 SIGNAL GROUND TEMP SENS A SIG TEMP SENS B LOW REF TEMP SENS B SIG TEMP SENS C SIG TEMP SENS D LOW REF TEMP SENS D SIG TEMP SENS E LOW REF TEMP SENS E SIG TEMP SENS F SIG AUTOSAR CAN BUS (+) 2 SERIAL DATA TEMP SENS H LOW REF TEMP SENS H SIG TEMP SENS LOW REF TEMP SENS SIG VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE

20 21 BODY CTRL MOD LIN BUS 13 AC PWR OUTLET SW SIG AUTOSAR CAN BUS (-) 9 SER DATA BLK/BRN WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BODY CTRL MOD LIN BUS BODY CTRL MOD LIN BUS 1 BODY CTRL MOD LIN BUS 11 BODY CTRL MOD LIN BUS 16 BODY CTRL MOD LIN BUS 3 BODY CTRL MOD LIN BUS 4 BODY CTRL MOD LIN BUS 9 BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRN/BLK WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE CARGO LMP CTRL CHILD SECURITY LK MTR LK CTRL COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG 1 DEFOGGER SYSTEM DOME/READING LP ENABLE SIG DOOR LOCKS, ANTI-THEFT SYSTEMS FRT CLOSURE AJAR SW SIG FRT CLOSURE REL EXTERIOR SW SIG GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/WHT WIRE HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM INSTRUMENT PANEL ACCENT LIGHTING CTRL INTERIOR LP CTRL INTERIOR PASSIVE ENTRY ANTENNA 1 HI SIG INTERIOR PASSIVE ENTRY ANTENNA 1 LOW SIG INTERIOR PASSIVE ENTRY ANTENNA 3 HI SIG INTERIOR PASSIVE ENTRY ANTENNA 3 LO SIG LED BACKLIGHT DIMMING CTRL 1 LH FRT DR LK ACTUATOR LK CTRL LH FRT DR OPEN SW SIG LH FRT EXTERIOR DR HNDL SW UNLOCK SIG LH MINOR ENDGATE AJAR SIG LR CHILD SECURITY LK ACTUATOR STATUS SIG LR DR EXTERIOR SW UNLK SIG LR DR HNDL SW SIG 2 LR DR LK ACTUATOR LK CTRL LR DR LK STATUS SIG MAJOR ENDGATE REL SW SIG EXTERIOR MINOR ENDGATE REL SW DISCRETE SIG EXTERIOR PASSIVE ENTRY LF ANTENNA SIG HI PASSIVE ENTRY RF DR ANTENNA SIG HI PASSIVE ENTRY RF DR ANTENNA SIG LOW POWER DISTRIBUTION SYSTEM POWER WINDOWS SYSTEM RETAINED ACCESSORY PWR CTRL RF DR EXTERIOR SW UNLK SIG RF DR HNDL SW SIG 1 RF DR LK ACTUATOR LK CTRL RH MINOR ENDGATE AJAR SIG RR CHILD SECURITY LK ACTUATOR STATUS SIG RR CLOSURE PASSIVE ENTRY ANTENNA HI SIG RR CLOSURE PASSIVE ENTRY ANTENNA LO SIG RR DEFOGGER RLY CTRL PASS ENTRY LEFT FRONT ANTENNA SIG LO RR DR EXTERIOR SW UNLOCK SIG RR DR HNDL SW SIG 2 RR DR LK STATUS SIG RR DR LO ACTUATOR LO CTRL STEP DIM BACKLIGHT TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE

9 SER DATA ACTIVE GRILLE AIR SHUTTER ACTUATOR 1 ACTIVE GRILLE AIR SHUTTER ACTUATOR 2 AUTO SAR CAN BUS BATT ENERGY CONTROL BATTERY CHARGER BATTERY ENERGY CONTROL MODULE 1 (FRONT OF LEFT REAR WHEELWELL) BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BUS (-) SER DATA COOLING FAN MOTOR GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE HEATER AIR CONDITIONING CONDENSER REFRIGERANT FLOW VALVE HI VOL BATT ISOLATED HYBRID/ELECTRIC VEHICLE BATTERY COOLANT PUMP HYBRID/ELECTRIC VEHICLE COOLANT HEATER HYBRID/ELECTRIC VEHICLE ELECTRONICS COOLANT PUMP HYBRID/ELECTRIC VEHICLE PROPULSION SYSTEM COOLANT CONTROL VALVE 1 HYBRID/ELECTRIC VEHICLE PROPULSION SYSTEM COOLANT CONTROL VALVE 2 MODULE LIN BUS 1 MODULE LIN BUS 2 MODULE LIN BUS 3 MODULE LIN BUS 4 MODULE LIN BUS 5 MODULE LIN BUS 6 POWERTRAIN POWERTRAIN CAN PRIVATE SER DATA SENS BUS ENABLE SPI BUS 1 (+) SER DATA SPI BUS 3 (-) SER DATA VIO/GRN WIRE WHT WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE

8 SER DATA AUTO SAR CAN BUS AUTOMATED DRIVING MAPPING MODULE (LEFT SIDE OF DASH) BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MOD ETHERNET BUS 11 (-) ETHERNET BUS 3 (+) FRONT SEAT HEATER VENT CONTROL MODULE GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE HYBRID/ELECTRIC VEHICLE BATTERY DISCONNECT RELAY HYBRID/ELECTRIC VEHICLE BATTERY PACK COMMUNICATION MODULE LEFT PROGRAMMABLE TEMPERATURE VALVE ACTUATOR LIN BUS 11 LIN BUS 2 LOGIC PROGRAMMABLE AIR INLET VALVE ACTUATOR PROGRAMMABLE MODE VALVE ACTUATOR REAR SEAT HEATER VENT CONTROL MODULE RIGHT PROGRAMMABLE TEMPERATURE VALVE ACTUATOR WHT WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE

AMBIENT AIR TEMPERATURE SENSOR AUTOSAR CAN BUS (+) 2 SERIAL DATA BATT POS VOLT BATTERY ENERGY CONTROL MODULE 1 BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM COOLANT ELECTRIC COOLANT ELECTRIC HTR CTRL COOLING FAN MOTOR (REAR OF RADIATOR) GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GROUND GRY/VIO WIRE HEATER HEATER CTRL HYBRID/ ELECTRIC VEHICLE BATTERY PACK HYBRID/ELECTRIC VEHICLE BATTERY CONTROL WIRING JUNCTION BLOCK HYBRID/ELECTRIC VEHICLE BATTERY COOLANT PUMP HYBRID/ELECTRIC VEHICLE COOLANT HEATER HYBRID/ELECTRIC VEHICLE ELECTRONICS COOLANT PUMP HYBRID/ELECTRIC VEHICLE PROPULSION SYSTEM COOLANT CONTROL VALVE 1 LIN BUS 3 LOGIC ORG/ WIRE ORG/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE SENS LOW REF (2) SIGNAL GROUND TEMP SENS A SIG TEMP SENS B LOW REF TEMP SENS B SIG TEMP SENS C SIG TEMP SENS D LOW REF TEMP SENS D SIG TEMP SENS E LOW REF TEMP SENS E SIG TEMP SENS LOW REF TEMP SENS SIG WHT WIRE WHT/YEL WIRE YEL/BRN WIRE

AMBIENT LIGHT SNS SIG AUTO HIGH BEAM ASSIST SWITCH SIGNAL AUTO HIGH BEAM SWITCH AUTO OFF BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BODY CONTROL MODULE LIN BUS 6 COMPUTER DATA LINES SYSTEM DIMMER SWITCH DRIVER INFORMATION CENTER DISPLAY DRL IND ENGINE WIRING HARNESS JUNCTION BLOCK FLASH TO PASS SWITCH FOG LAMP IND FRONT FOG LAMP SWITCH GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRY/BRN WIRE HEAD HEADLAMP SWITCH FLASH SIGNAL HEADLAMP SWITCH OFF SIGNAL HEADLAMP SWITCH ON SIGNAL HIGH BEAM ASSIST SWITCH HIGH BEAM LAMP IND HIGH BEAM SELECT SWITCH HIGH BEAM SIGNAL HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LIN BUS 1 LOGIC LOW REF PARK REAR FOG LAMP SWITCH RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SENSOR LOW REFERENCE TURN SIGNAL SWITCH WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL/BRN WIRE

ACTIVE NOISE CANCELLATION MICROPHONE 1 FEEDBACK SIGNAL ACTIVE NOISE CANCELLATION MICROPHONE 1 SIGNAL AUDIO AMPLIFIER AUTOSAR CAN BUS (+) 5 SERIAL DATA BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM ETHERNET BUS 6 (-) FRONT CENTER SPEAKER (-) CTRL GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/RED WIRE GRN/VIO WIRE GRY/BLK WIRE HOT AT ALL TIMES LEFT FRONT RADIO SPEAKER INSTRUMENT PANEL LEFT FRONT SPEAKER 1 (+) CTRL LEFT FRONT SPEAKER CTRL (+) 1 LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK NCA WIRE RADIO FRONT CENTER SPEAKER RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE REAR/LEFT REAR SURROUND SPEAKER (-) CTRL RED/GRN WIRE RIGHT FRONT MIDRANGE SPEAKER (+) CTRL RIGHT FRONT RADIO SIDE DOOR SPEAKER RIGHT FRONT RADIO SPEAKER INSTRUMENT PANEL RIGHT FRONT RADIO WINDSHIELD SIDE GARNISH MOLDING SPEAKER RIGHT FRONT SPEAKER 1 (+) CTRL RIGHT FRONT SPEAKER CTRL (+) 1 RIGHT SUBWOOFER (-) CTRL BATTERY POSITIVE VOLTAGE RIGHT SUBWOOFER CTRL (+) SIG GROUND VIO/BLU WIRE WHT WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BATTERY POSITIVE VOLTAGE BLK WIRE BODY CONTROL MODULE BODY CTRL MODULE LIN BUS 1 BODY CTRL MODULE LIN BUS 2 COMPUTER DATA LINES SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BLU WIRE GRN/BRN WIRE HOT AT ALL TIMES ILL REAR SLIDING WINDOW CLOSE RELAY REAR SLIDING WINDOW MOTOR REAR SLIDING WINDOW OPEN RELAY REAR WINDOW SWITCH RED/GRY WIRE RETAINED ACCESSORY POWER CONTROL RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK VIO WIRE VIO/YEL WIRE WHT WIRE YEL WIRE YEL/VIO WIRE