GMC Hummer EV I (2021-2024) vio/red Wiring diagrams

BAT POS VOLT BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU/GRN WIRE BLU/VIO WIRE BRN/BLK WIRE CAN BUS (+) 4 SERIAL DATA CAN BUS (+) 4 SERIAL DATA SEAT MEMORY SW SET SIG COAX COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DEFOGGER, EXTERIOR LIGHTS, NAVIGATION SYSTEMS DOWN DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER OUTSIDE REAR VIEW MIRROR ACTUATOR DRIVER OUTSIDE REAR VIEW MIRROR EXTERIOR FLOOD LAMP DRIVER OUTSIDE REAR VIEW MIRROR FOLDING ACTUATOR DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR DRIVER SEAT ADJUSTER MEMORY MODULE (UNDER DRIVER SEAT) DRIVER SIDE OBJECT DETECTION INDICATOR FOLDING SWITCH GRN/YEL WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT SIDE VIEW DRIVER INFORMATION CAMERA LOGIC MIRROR DIMMING MIRRORS SYSTEM NAVIGATION SYSTEM NCA WIRE RED/VIO WIRE RED/YEL WIRE RIGHT RWD SEAT MEMORY SW SIG 1 VIO/BLU WIRE VIO/RED WIRE WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL/BRN WIRE YEL/WHT WIRE

BLK WIRE BLK/WHT WIRE BLU/BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DC/AC CONVERTER CONTROL MODULE DC/AC INVERTER CTRL DC/AC INVERTER CTRL 2 FROM ENGINE WIRING HARNESS JUNCTION BLOCK (DIAGRAM 4 OF 10) GRN/BLU WIRE GRN/BRN WIRE GROUND LIN BUS 2 LOGIC LOW REF LOW REF (8) NCA WIRE RED WIRE RED/WHT WIRE VIO/RED WIRE VIO/WHT WIRE WHT/GRN WIRE YEL 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

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

BATT POS VOL BATTERY CHARGER COUPLER BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BODY CTRL BRAKE APPLY BRAKE PEDAL POSITION SENSOR BRN/GRY WIRE BRN/YEL WIRE CAN BUS (+) 9 CHARGE PORT DOOR AJAR SWITCH CHARGER PORT HOUSING LAMP COMPUTER DATA LINES SYSTEM GRN WIRE GRN/BRN WIRE GRN/WHT WIRE GRY/GRN WIRE HIGH VOLTAGE SERVICE LOCKOUT INLINE CONNECTOR HYBRID/ELECTRIC VEHICLE BATTERY DISCONNECT RELAY HYBRID/ELECTRIC VEHICLE BATTERY PACK LOGIC MOD LIN BUS 1 NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/BLU WIRE ORG/WHT WIRE RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SENS CTRL SENS LOW REF SENS SIG VIO/BLK WIRE VIO/GRN WIRE VIO/RED WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/VIO 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

BATT POS VOLT 110 E-STOP 7 BLK 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 3 POSITION SENSOR DRIVE MOTOR 3 STATOR DRIVE MOTOR CONTROL MODULE 3 ENGINE WIRING HARNESS JUNCTION BLOCK GRN WIRE GRN/WHT WIRE GRY WIRE GRY/GRN WIRE HIGH VOL BATT TRACTION HOT AT ALL TIMES ORG/ WIRE ORG/BLK WIRE PWR INVERTER MOD 3 (+) REAR ELECTRIC DRIVE TRANSMISSION MODULE (ON REAR POWERTRAIN CRADLE) RED/BLU WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RESOLVER 3 EXCITATION (+) SIG RESOLVER 3 LOW REF RUN/CRANK IGNITION 1 VOLT SECONDARY BATT POS VOLT 106 E-STOP 3 VIO/BLK WIRE VIO/GRN WIRE VIO/RED WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/VIO WIRE

A/C REFRIGERANT HIGH SIDE SENS 2 SIG A/C REFRIGERANT HIGH SIDE SENS SIG A/C REFRIGERANT LOW SIDE SENS SIG A/C REFRIGERANT TEMP SENS A SIG A/C REFRIGERANT TEMP SENS B SIG ACCELERATOR PEDAL POS LOW REF 1 ACCELERATOR PEDAL POS LOW REF 2 ACCELERATOR PEDAL POSITION SENSOR ACCESSORY PWR MODULE SUPPLY VOLT 3 AIR CONDITIONING SYSTEM BATT ENERGY CTRL BATT ENERGY CTRL MOD 5 VOLT REFR B BATT ENERGY CTRL MOD LIN BUS 1 BATT ENERGY CTRL MOD LIN BUS 2 BATT ENERGY CTRL MOD LIN BUS 3 BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE CAN BUS (-) 9 SERIAL DATA CAN BUS (-) SERIAL DATA CHARGE REC TEMP SENS DC+ LOW REF CHARGE RECEPTACLE TEMP SENS L SIG CHARGING LOCK POS LOW REF CHARGING LOCK POS SIG COMPUTER DATA LINES SYSTEM COOLANT ELECTRIC HEATER CTRL GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE HIGH VOLT BATT 2 (-) RLY CTRL MOD SENS LOW REFR 3 ORG/ WIRE ORG/BLK WIRE POWERTRAIN SENS BUS ENABLE PRECHARGE RLY CTRL 2 RED/BLU WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE SIG GND VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/RED WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE YEL/WHT 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

A/C REFRIGERANT TEMP SENS D SIG A/C REFRIGERANT TEMP SENS E SIG A/C REFRIGERANT TEMP SENS F SIG A/C REFRIGERANT TEMP SENS H LOW REF A/C REFRIGERANT TEMP SENS H SIG ACC PWR MOD SET VOLT CTRL AIR CONDITIONING SYSTEM BATT ENERGY CTRL SENS LOW REF 1 BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE CHARGE RECEPTACLE TEMP SENS N SIG COOLANT TEMP SENS A SIG COOLANT TEMP SENS B LOW REF COOLANT TEMP SENS B SIG COOLANT TEMP SENS C SIG COOLANT TEMP SENS D LOW REF COOLANT TEMP SENS D SIG COOLANT TEMP SENS E LOW REF COOLANT TEMP SENS E SIG CTRL PILOT SIG 1 DOOR LOCKS SYSTEM GRN/BRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HIGH VOLT ONBOARD CHARGING ENABLE SIG HOOD STATUS A SIG HYBRID/ELECTRIC VEHICLE BATTERY DISCONNECT RELAY HYBRID/ELECTRIC VEHICLE BATTERY PACK HYBRID/ELECTRIC VEHICLE BATTERY PACK COMMUNICATION MODULE LOGIC MOD SENS LOW REF 5 ORG/ WIRE ORG/BLK WIRE RED/VIO WIRE SIG GND VEHICLE CTRL MOD WAKE UP SIG VEHICLE INTEGRATION CTRL VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/RED WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/VIO WIRE