GMC Hummer EV I (2021-2024) left instrument panel wiring harness junction block Wiring diagrams

AUTOSAR CAN BUS SERIAL DATA (+) 8 AUTOSAR CAN BUS SERIAL DATA (-) 3 AUTOSAR CAN BUS SERIAL DATA 2 - BATTERY POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE COMPUTER COMPUTER DATA LINES SYSTEM DATA LINES ETHERNET BUS 11 (-) GRN/GRY WIRE HOT AT ALL TIMES IMAGE PROCESSING MODULE INERTIAL SENSOR SUPPLY VOLTAGE LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT REAR SHORT RANGE RADAR SENSOR RED/GRN WIRE RED/WHT WIRE RIGHT REAR SHORT RANGE RADAR SENSOR SIGNAL GROUND SYSTEM VEHICLE DYNAMICS SENSOR VIO/GRY WIRE WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE

AUTOSAR CAN BUS (-) 9 SERIAL DATA AUTOSAR CAN BUS (-) 9 SERIAL DATA BATT POS VOLT BATT POS VOLT BLK WIRE BLU/GRN WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN/VIO WIRE CARGO LAMP CONTROL COMPUTER DATA LINES SYSTEM COURTESY LAMP SW SIG DOME/READING LAMP ENABLE SIG DOME/READING LAMP ENABLE SIGNAL FRONT FOOTWELL ACCENT LIGHTING CTRL GRN/VIO WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/ORG WIRE HOT AT ALL TIMES INSTRUMENT ILLUMINATION CIRCUIT INSTRUMENT PANEL ACCENT LIGHTING CTRL INTERIOR DR HANDLE ACCENT LIGHTING CTRL INTERIOR LAMP CONTROL INTERIOR LAMP DEFEAT SW SIG INTERIOR LAMP SWITCH LEFT FRONT FLOOR COURTESY LAMP LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK OVERHEAD ACCENT LIGHTING CONTROL RED/GRY WIRE RED/WHT WIRE RIGHT FRONT FLOOR COURTESY LAMP VIO/GRN WIRE W/ ACCESSORY INTERIOR LED LIGHTING WHT/BLK WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE

BATT POS VOLTAGE BLK WIRE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DRIVER FRONT SEAT BACK LUMBAR PUMP DRIVER FRONT SEAT BLADDER CONTROL MODULE DRV SEAT ADJUSTER MEMORY MODULE LIN BUS 2 DRV SEAT LUMBAR/ BOLSTER PUMP CTRL DRV SEAT BOLSTER PUMP LOW REF GRN/GRY WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC NCA WIRE RED WIRE RED/BRN WIRE WHT/BLU WIRE

BAT POS VOLT BLK WIRE BLK/VIO WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/YEL WIRE BRN WIRE CAN BUS (+) 4 SERIAL DATA COMPUTER DATA LINES SYSTEM DOWN DRIVER FRONT SEAT ADJUSTER MEMORY SWITCH DRIVER FRONT SEAT ADJUSTER SWITCH DRIVER FRONT SEAT LUMBAR SWITCH DRIVER SEAT ADJUSTER MEMORY MODULE (UNDER DRIVER SEAT) DRV SEAT ADJUSTER MEMORY MOD LIN BUS 1 CAN BUS (-) 4 SERIAL DATA DRV SEAT ADJUSTER MEMORY MOD LIN BUS 2 CAN BUS (-) 4 SERIAL DATA EXIT GRN/GRY WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT FRONT SEAT LANE DEPARTURE WARNING ACTUATOR LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC NCA WIRE RECLINE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT SEAT LANE DEPARTURE WARNING ACTUATOR RR SEAT HAPTIC MOVEMENT MTR CTRL LR SEAT HAPTIC MOVEMENT MTR CTRL RWD SEAT MEMORY SW SET SIG SEAT MEMORY SW SIG 1 SET- WHT WIRE YEL/BRN 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

ACCESSORY POWER RECEPTACLE SWITCH AUTOSAR CAN BUS (+) 1 SERIAL DATA AUTOSAR CAN BUS (+) 5 SERIAL DATA AUTOSAR CAN BUS (-) 9 SERIAL DATA AUTOSAR CAN BUS (-) 9 SERIAL DATA BATT POS VOLT BATT POS VOLT BLK WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/RED WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DIMMER SWITCH DISPLAY DRIVER FRONT SEAT ADJUSTER MEMORY SWITCH DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH GEAR SHIFT CONTROL MODULE (IN FLOOR CONSOLE) GRN/YEL WIRE HEATER, AIR CONDITIONING AUXILIARY CONTROL HOT AT ALL TIMES INDICATOR DIMMING CONTROL INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL LAMP DIMMER SW SIG INSTRUMENT PANEL LP DIMMER SW LOW REF INTERIOR LAMP SWITCH LED BACKLIGHT DIMMING CONTROL 1 LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC PARKING BRAKE CONTROL SWITCH REAR WINDOW SWITCH RED/GRY WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK STEP DIM BACKLIGHT WHT WIRE WHT/GRN WIRE YEL WIRE YEL/GRY WIRE

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

BAT POS VOLT BATT POS VOLT BLK WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/GRY WIRE CAN BUS (+) 4 SERIAL DATA CAN BUS (+) 4 SERIAL DATA SEAT MEMORY SW SET SIG COMPUTER DATA LINES SYSTEM DOWN DRIVER FRONT SEAT ADJUSTER MEMORY SWITCH DRIVER SEAT ADJUSTER MEMORY MODULE (UNDER DRIVER SEAT) DRV SEAT ADJUSTER MEM MOD LIN BUS 1 EXIT GRN/BRN WIRE GRN/WHT WIRE GRY/VIO WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK NCA WIRE RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RWD SEAT MEMORY SW SIG 1 SET- STEERING COLUMN CONTROL MODULE STEERING COLUMN TELESCOPE ACTUATOR STEERING COLUMN TILT WHEEL ACTUATOR STEERING COLUMN TILT WHEEL, TELESCOPE SWITCH STRG CLMN TELESCOPE MOTOR FWD CTRL STRG CLMN TELESCOPE MOTOR LO REF STRG CLMN TELESCOPE MOTOR RRWD CTRL STRG CLMN TELESCOPE MOTOR SIG STRG CLMN TILT MTR DOWN CTRL STRG CLMN TILT MTR LO REF STRG CLMN TILT MTR SIG STRG CLMN TILT MTR UP CTRL STRG CLMN TILT, TELESCOPE SW DOWN SIG STRG CLMN TILT, TELESCOPE SW FEEDBACK SIG STRG CLMN TILT, TELESCOPE SW FWD SIG STRG CLMN TILT, TELESCOPE SW RRWD SIG STRG CLMN TILT, TELESCOPE SW UP SIG VIO/BLK WIRE VIO/GRY WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE

BLK WIRE BLU/BRN WIRE BLU/WHT WIRE DOWN GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK PASSENGER FRONT SEAT ADJUSTER ACTUATOR PASSENGER FRONT SEAT ADJUSTER SWITCH PASSENGER FRONT SEAT RECLINER ACTUATOR PASSENGER FRONT SEAT TILT ADJUSTER ACTUATOR PASSENGER FRONT SEAT VERTICAL ADJUSTER ACTUATOR RECLINE FWD RECLINE RWD RED/YEL WIRE RWD UP DOWN YEL/BLU WIRE YEL/WHT WIRE

BATT POS VOLT BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE LIN BUS 2 BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DRIVER CUSHION, BACK SWITCH GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRY WIRE HEATER, AIR CONDITIONING AUXILIARY CONTROL HIGH HEAT IND HOT AT ALL TIMES LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT REAR SEAT CUSHION HEATER LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 9 LOGIC LOW HEAT IND MEDIUM HEAT IND NCA WIRE PASSENGER CUSHION/ BACK SWITCH REAR SEAT HEATER VENT CONTROL MODULE RED/BLU WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR SEAT CUSHION HEATER RR SEAT CUSHION HEATING ELEMENT CTRL WHT/BLK WIRE WHT/BLU WIRE YEL/WHT WIRE