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

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

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

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

BATTERY POSITIVE VOLTAGE BLK/BLU WIRE BLK/GRY WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CAN BUS (-) 1 SERIAL DATA CAN BUS (-) 2 SERIAL DATA COMPUTER DATA LINES SYSTEM FRONT PARKING ASSIST DISPLAY CONTROL FRONT PARKING ASSIST SENSOR LOW REFERENCE GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT "C" PILLAR) LEFT FRONT ADVANCED PARKING ASSIST ALARM SENSOR LEFT FRONT ADVANCED PARKING ASSIST SIDE OBJECT SENSOR SIGNAL LEFT FRONT MIDDLE PARKING ASSIST ALARM SENSOR LEFT FRONT MIDDLE PARKING ASSIST SENSOR LEFT FRONT OUTER PARKING ASSIST ALARM SENSOR LEFT FRONT OUTER PARKING ASSIST SENSOR LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT REAR ADVANCED PARKING ASSIST SIDE OBJECT SENS SIG OBJECT SENS LOW REF LEFT REAR MIDDLE PARKING ASSIST SENS SIG LEFT REAR OUTER PARKING ASSIST SENS SIG OBJECT SENS VOLT REF RIGHT REAR OUTER PARKING ASSIST SENS SIG PARKING ASSIST CONTROL MODULE RED/WHT WIRE RIGHT FRONT ADVANCED PARKING ASSIST ALARM SENSOR RIGHT FRONT ADVANCED PARKING ASSIST SIDE OBJECT SENSOR SIGNAL RIGHT FRONT MIDDLE PARKING ASSIST ALARM SENSOR RIGHT FRONT MIDDLE PARKING ASSIST SENSOR RIGHT FRONT OUTER PARKING ASSIST ALARM SENSOR RIGHT FRONT OUTER PARKING ASSIST SENSOR RIGHT REAR ADVANCED PARKING ASSIST SIDE OBJECT SENS SIG RIGHT REAR MIDDLE PARKING ASSIST SENS SIG SIGNAL GROUND VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/YEL WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN/WHT WIRE CAN BUS (+) 5 SERIAL DATA CAN BUS (-) 9 SERIAL DATA COMPUTER DATA LINES SYSTEM DISPLAY GRN WIRE GRN/GRY WIRE GRY/GRN WIRE INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT REAR ADVANCED PARKING ASSIST ALARM SENSOR LEFT REAR MIDDLE PARKING ASSIST ALARM SENSOR LEFT REAR OUTER PARKING ASSIST ALARM SENSOR LOGIC PARALLEL PARKING ASSIST SW PARKING ASSIST IND PARKING ASSIST PARALLEL PARKING DISABLE SWITCH SIGNAL PARKING ASSIST SW RADIO CONTROL REAR PARKING ASSIST DISABLE LED SIGNAL REAR PARKING ASSIST DISABLE SIGNAL RIGHT REAR ADVANCED PARKING ASSIST ALARM SENSOR RIGHT REAR MIDDLE PARKING ASSIST ALARM SENSOR RIGHT REAR OUTER PARKING ASSIST ALARM SENSOR WHT/GRN WIRE YEL WIRE YEL/BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

BLK WIRE BLK/GRY WIRE BLU/BRN WIRE BLU/GRN WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN/GRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DELAY SWITCH ENGINE WIRING HARNESS JUNCTION BLOCK GRN/GRY WIRE GRY WIRE GRY/VIO WIRE HI LO HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (+) 1 SIG GND HOT AT ALL TIMES MIST OFF INT RED/GRY WIRE UNDERBODY CAMERAS CAMERA WASHER FLUID PUMP RELAY WASHER SWITCH WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/VIO WIRE WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY WINDSHIELD WASHER SW SIG WINDSHIELD WIPER MOTOR WINDSHIELD WIPER MOTOR RELAY WINDSHIELD WIPER MOTOR SPEED CONTROL RELAY WINDSHIELD WIPER SW LOW REF WINDSHIELD WIPER SW LOW SIG WINDSHIELD WIPER SWITCH WINDSHIELD WIPER, WINDSHIELD WASHER SWITCH YEL/BRN 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

ACC PWR MOD SUPPLY VOLT 1 BATT (+) VOLT 105 E-STOP 2 BATT (+) VOLT 109 E-STOP 6 I BLK WIRE BLK/GRY WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRY WIRE BRN/YEL WIRE CAN BUS (-) 2 SERIAL DATA CAN BUS (-) 9 SERIAL DATA CAN BUS (-) SERIAL DATA COMPUTER DATA LINES SYSTEM DRIVE MOTOR 2 POSITION SENSOR DRIVE MOTOR 2 STATOR DRIVE MOTOR CONTROL MODULE 2 DRV MTR 2 POS SENS 1 SIG DRV MTR 2 POS SENS 2 SIG DRV MTR 2 POS SENS 3 SIG DRV MTR 2 POS SENS 4 SIG DRV MTR 2 POS SENS EXCITATION SIG + DRV UNIT SUMP OIL TEM SENS 2 LOW REF DRV UNIT SUMP OIL TEM SENS 2 SIG GRN WIRE GRN/WHT WIRE GRY WIRE GRY/GRN WIRE HI VOLT BATT INVERTER MOD 2 (+) ORG/ WIRE ORG/BLK WIRE PUMP 2 DIAGNOSTIC FEEDBACK SIG REAR ELECTRIC DRIVE TRANSMISSION MODULE (ON REAR POWERTRAIN CRADLE) RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RESOLVER 2 LOW REF RUN/CRANK IGNITION 1 VOLT TRANSMISSION OIL TRANSMISSION OIL PUMP 2 CTRL TRANSMISSIONS SYSTEM VIO/BLK WIRE VIO/GRN WIRE VIO/RED WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/VIO WIRE