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

AIR CONDITIONING EVAPORATOR AIR TEMPERATURE SENSOR AIR TEMP SENS SIG AUTOSAR CAN BUS (-) 9 SERIAL DATA BATT POS VOLT BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR (BOTTOM OF HVAC UNIT) BLOWER SPD FEEDBACK SIG BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BLWR MTR SPD CTRL BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DISPLAY DRV SOLAR SENS SIG GRN/BLU WIRE GROUND GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HEADLIGHTS SYSTEM HVAC REM ENABLE SIG HVAC SYSTEM ENABLE SIG ILL LEFT FRONT DUCT AIR TEMPERATURE SENSOR LOGIC LVDS LVDS GY RADIO RADIO CONTROL RED/GRY WIRE RED/WHT WIRE RIGHT FRONT DUCT AIR TEMPERATURE SENSOR SECURITY IND CTRL SENS LO REF SUNLOAD TEMPERATURE, HEADLAMP AUTOMATIC CONTROL AMBIENT LIGHT SENSOR TEMP SENS SIG WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/YEL WIRE

AIR CONDITIONING COOLER ELECTRONIC EXPANSION VALVE AIR CONDITIONING EVAPORATOR ELECTRONIC EXPANSION VALVE BLK WIRE BLK/VIO WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM EXTERNAL AIR CONDITIONING CONDENSER REFRIGERANT FLOW VALVE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT PROGRAMMABLE TEMPERATURE VALVE ACTUATOR LOGIC PROGRAMMABLE AIR INLET VALVE ACTUATOR PROGRAMMABLE MODE VALVE ACTUATOR REAR LOWER DUCT AIR TEMPERATURE SENSOR RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RIGHT PROGRAMMABLE TEMPERATURE VALVE ACTUATOR WHT/YEL WIRE

A/C EVAPORATOR TEMP SENS SIG AC PWR OUTLET STATUS IND CTRL AIR CONDITIONING SYSTEM ALL WINDOWS OPEN SW SIG AMBIENT LT SENS SIG ANTI-LOCK BRAKES SYSTEM ANTI-THEFT SYSTEM AUTO HI BEAM ASSIST SW SIG AUTOSAR CAN BUS (-) 9 SERIAL DATA AUTOSAR CAN BUS (-) 9 SERIAL DATA IND DIMMING CTRL BATTERY POS VOLT BATT POS VOLT BATTERY POS VOLT BLK WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BLWR MTR SPD CTRL BLWR SPD FEEDBACK SIG BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BODY CTRL MOD LIN BUS 5 BODY CTRL MOD LIN BUS 6 BODY CTRL MOD LIN BUS 7 BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/YEL WIRE CARGO LP IND TRL CARGO LP SW SIG COMPUTER DATA LINES SYSTEM COURTESY LP SW SIG CRUISE CONTROL SYSTEM CRUISE CONTROL, NAVIGATION SYSTEMS CRUISE CONTROL, TRANSMISSIONS SYSTEMS CRUISE CTRL SET/COAST/RES/ACC SW SIG DISTANCE SENSING CRUISE CTRL GAP UP/DN SW SIG DOME/READING LP ENABLE SIG DOOR LOCKS, ANTI-THEFT SYSTEMS DRV SOLAR SENS SIG ENGINE CONTROLS SYSTEM ENHANCED DRV MODE 2 SW SIG FRT CLOSURE REL INTR SW SIG FRT CLOSURE REL INTR SW WAKE UP SIG FRT COMPT ENTRAPMENT REL SW SIG FRT FOOTWELL ACCENT LIGHTING CTRL GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/ORG WIRE GRY/RED WIRE GRY/VIO WIRE HAZ WARN SW SIG HDLP SW FLASH SIG HDLP SW OFF SIG HDLP SW ON SIG HDLP SW PRK LP SIG HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM AIR CONDITIONING SYSTEM HEADLIGHTS, AIR CONDITIONING, ANTI-THEFT SYSTEMS HI BEAM SEL SW HI BEAM SIG HORN SW SIG HORNS SYSTEM HOT AT ALL TIMES HVAC REM ENABLE SIG HVAC SYS ENABLE SIG IGN MODE SW ACC LED SIG IGN MODE SW MODE VOLT IGN MODE SW ST LED SIG IMMO ANT LO SIG IMMO ANT SIG [+] INSIDE AIR TEMP SENS SIG INSTRUMENT PANEL LP DIMMER SW LO REF INSTRUMENT PANEL LP DIMMER SW SIG INTR DR HNDL ACCENT LIGHTING CTRL INTR LP CTRL INTR LP DEFEAT SW SIG LANE DEP WARN DISABLE SW SIG LED BACKLIGHT DIMMING CTRL 1 LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LH CONDENSING HTR AIR TEMP SENS SIG LH TURN SIG SW SIG MAJOR ENDGATE HI RLY CTRL MAJOR ENDGATE LO RLY CTRL MAJOR ENDGATE REL SW SIG INTR MINOR ENDGATE HIGH RLY CTRL NAVIGATION SYSTEM OVERHEAD ACCENT LIGHTING CTRL PARKING ASSIST PARALLEL PARKING DISABLE SW SIG PASSIVE ENTRY CLOSURE 2 ANT SIG HI PASSIVE ENTRY CLOSURE 2 ANT SIG LO POWER DISTRIBUTION SYSTEM POWER DISTRIBUTION, INTERIOR LIGHTS SYSTEMS POWER WINDOWS SYSTEM RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE REGEN ON DEMAND SW SIG RETAINED ACC PWR RLY 2 COIL CTRL RH CONDENSING HTR AIR TEMP SENS SIG RH TURN SIG SW SIG RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RR PARKING ASSIST DISABLE LED SIG RR PARKING ASSIST DISABLE SIG RUN/CRNK RLY COIL CTRL SECURITY IND CTRL SENS LO REF SIG GROUND STRG WHEEL RESISTOR LADDER LO REF TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO/BLU WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WASH SW SIG WINDSHIELD WIP SW LO REF WINDSHIELD WIP SW LO SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO 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

AIR CONDITIONING COMPRESSOR CONTROL MODULE AIR CONDITIONING W/ MOTOR COMPRESSOR BRN/GRN WIRE FROM HYBRID/ ELECTRIC VEHICLE BATTERY CUT-OFF ACTUATOR 2 (DIAGRAM 9 OF 11) FROM HYBRID/ELECTRIC VEHICLE BATTERY CUT-OFF ACTUATOR (DIAGRAM 9 OF 11) FUSE FLL FUSE FLRI FUSE FUL FUSE FURI FUSE FURO GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HYBRID/ELECTRIC VEHICLE BATTERY CONTACTOR- DC POSITIVE RELAY HYBRID/ELECTRIC VEHICLE BATTERY CONTACTOR- POSITIVE 2 RELAY HYBRID/ELECTRIC VEHICLE BATTERY CONTACTOR- POSITIVE RELAY HYBRID/ELECTRIC VEHICLE BATTERY CONTACTOR- PRECHARGE 2 RELAY HYBRID/ELECTRIC VEHICLE BATTERY CONTACTOR- PRECHARGE RELAY HYBRID/ELECTRIC VEHICLE BATTERY CONTACTOR- SERIES POSITIVE RELAY HYBRID/ELECTRIC VEHICLE BATTERY CONTROL WIRING JUNCTION BLOCK HYBRID/ELECTRIC VEHICLE BATTERY DISCONNECT RELAY HYBRID/ELECTRIC VEHICLE BATTERY PACK SECTIONS 1 HYBRID/ELECTRIC VEHICLE BATTERY PACK SECTIONS 2 HYBRID/ELECTRIC VEHICLE BATTERY PRECHARGE RESISTOR HYBRID/ELECTRIC VEHICLE BATTERY PRECHARGE RESISTOR 2 RELAY HYBRID/ELECTRIC VEHICLE COOLANT HEATER LOGIC N/A N/A N/A ORG/ WIRE RED/VIO WIRE TO FUSE FLRO (DIAGRAM 9 OF 11) VIO/GRN WIRE WHT WIRE YEL/VIO WIRE

AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (-) 9 SERIAL DATA BATTERY ENERGY CONTROL MODULE 2 (FRONT OF RIGHT REAR WHEELWELL) BATTERY POSITIVE VOLTAGE BLK WIRE BLU/GRN WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM GND (PINS: 46 TO 60 NOT USED) 61 GRN/BLU WIRE GRN/WHT WIRE HIGH VOLTAGE BATT SERIES (-) RLY CTRL HOT AT ALL TIMES LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RED/BRN WIRE RED/VIO WIRE RUN/CRANK IGNITION 1 VOLTAGE (PINS: 64 TO 80 NOT USED) VIO/GRN WIRE WHT WIRE WHT/GRN WIRE

ACC PWR MOD SUPPLY VOLT 1 ACC PWR MOD SUPPLY VOLT 2 AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (+) 9 AUTOSAR CAN BUS (-) 2 AUTOSAR CAN BUS (-) 9 SERIAL DATA BATT POS VOL BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE CAN BUS (-) SERIAL DATA COMPUTER DATA LINES SYSTEM DRIVE MOTOR 1 POSITION SENSOR DRIVE MOTOR 1 STATOR DRIVE MOTOR CONTROL MODULE 1 DRIVE UNIT SUMP OIL TEMP SENS LOW REF DRIVE UNIT SUMP OIL TEMP SENS SIG DRV MTR 1 POS SENS 1 SIG DRV MTR 1 POS SENS 2 SIG DRV MTR 1 POS SENS 3 SIG DRV MTR 1 POS SENS EXCITATION SIG (+) DRV MTR 1 POS SENS EXCITATION SIG (-) DRV MTR 1 POS SENS 4 SIG ELC TRANSMISSION RANGE PARK ENGAGE CTRL ELEC TRANS RANGE PARK POS SENS 1 SIG ELEC TRANS RANGE PARK POS SENS 2 SIG FRONT ELECTRIC DRIVE TRANSMISSION MODULE FRONT ELECTRIC DRIVE TRANSMISSION MODULE (ON FRONT POWERTRAIN CRADLE) GRN/BLU WIRE GRY WIRE HI VOLT BATT TRACTION PWR INVERTER MOD 1 (-) HOT AT ALL TIMES LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOW REF ORG/ WIRE ORG/BLK WIRE PARK DISENGAGE CTRL PARK POS SENS 2 5 VOLT REF PARK POS SENS 2 LOW REF RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RUN/CRANK IGNITION 1 VOLT SECONDARY FUSED BATT POS VOL 104 E-STOP 1 SECONDARY FUSED BATT POS VOLT 108 E-STOP 5 TRANSMISSION OIL PUMP CTRL TRANSMISSION OIL PUMP DIAGNOSTIC FEEDBACK SIG TRANSMISSIONS SYSTEM VIO/BLK WIRE VIO/GRN WIRE VIO/RED WIRE WHT WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE YEL/GRY WIRE

A/C REFRIGERANT TEMP SENS C SIG ACC PWR MOD FIELD DUTY CYCLE SIG ACCELERATOR PEDAL POS SIG 1 ACCELERATOR PEDAL POS SIG 2 ACCESSORY PWR MOD SUPPLY VOLT 4 AIR CONDITIONING SYSTEM AMBIENT AIR TEMP SENS LOW REF AMBIENT AIR TEMP SENS SIG AUTOSAR CAN BUS (+) 2 SERIAL DATA BAT ENERGY CTRL MOD SENS LOW REF 4 BATT ENERGY CTRL MOD 5 VOLT REF C BATT ENERGY CTRL MOD SENS LOW REF 2 BATT ENERGY CTRL MODULE LIN BUS 4 BATT ENERGY CTRL MODULE LIN BUS 5 BATT ENERGY CTRL MODULE LIN BUS 6 BATT RADIO FREQUENCY MOD LOW REF BATT RADIO FREQUENCY MOD SUPPLY VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE CHARGE PORT DOOR POS SENS SIG CHARGE REC TEMP SENS DC+ SIG CHARGE REC TEMP SENS L LOW REF COMPUTER DATA LINES SYSTEM FAST CHARGE DC NEGATIVE RLY CTRL FAST CHARGE DC POSITIVE RLY CTRL FAST CHRG OFFBRD CHARGING LK SIG FAST CHRG OFFBRD CHARGING UNLK SIG GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/VIO WIRE HYBRID/EV BATT (-) RLY CTRL HYBRID/EV BATT 1 (+) RLY CTRL HYBRID/EV BATTERY 2 (+) RLY CTRL HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 1 HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 2 HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 3 HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 4 HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 5 INSTRUMENT CLUSTER SYSTEM ORG/ WIRE ORG/BLK WIRE PRECHARGE RLY PROXIMITY STATUS SIG 1 RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RUN/CRANK IGNITION 1 VOLT SECONDARY FUSED BATT POS VOLT SPI BUS 1 (+) SERIAL DATA SPI BUS 3 (+) SERIAL DATA VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/RED WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

AIR CONDITIONING SYSTEM BLU/ORG WIRE BRN/GRN WIRE FUSE FLRO GRN/BLU WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE HYBRID/ELECTRIC VEHICLE BATTERY CONTACTOR- DC NEGATIVE RELAY HYBRID/ELECTRIC VEHICLE BATTERY CONTACTOR- NEGATIVE 2 RELAY HYBRID/ELECTRIC VEHICLE BATTERY CONTACTOR- NEGATIVE RELAY HYBRID/ELECTRIC VEHICLE BATTERY CONTACTOR- SERIES NEGATIVE RELAY HYBRID/ELECTRIC VEHICLE BATTERY CONTROL WIRING JUNCTION BLOCK HYBRID/ELECTRIC VEHICLE BATTERY CURRENT SENSOR 1 HYBRID/ELECTRIC VEHICLE BATTERY CURRENT SENSOR 2 HYBRID/ELECTRIC VEHICLE BATTERY CUT-OFF ACTUATOR HYBRID/ELECTRIC VEHICLE BATTERY CUT-OFF ACTUATOR 2 HYBRID/ELECTRIC VEHICLE BATTERY DISCONNECT RELAY LOGIC N/A ORG/ WIRE ORG/BLK WIRE ORG/BRN WIRE ORG/YEL WIRE RED/VIO WIRE SUPPLEMENTAL RESTRAINTS SYSTEM TO HYBRID/ELECTRIC VEHICLE BATTERY PACK SECTIONS 1 (DIAGRAM 10 OF 11) TO HYBRID/ELECTRIC VEHICLE BATTERY PACK SECTIONS 2 (DIAGRAM 10 OF 11) VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE YEL/VIO WIRE