GMC Sierra IV facelift (2022-2024) headlights system Wiring diagrams

A/C IND A/C SWITCH AIR CONDITIONING CLUTCH AIR CONDITIONING COMPRESSOR (LOWER LEFT SIDE OF ENGINE) AIR CONDITIONING COMPRESSOR SOLENOID VALVE AIR CONDITIONING EVAPORATOR AIR TEMPERATURE SENSOR ANTI-THEFT SYSTEM AUTO IND AUTO SWITCH BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE CHARGE AIR COOLER COOLANT PUMP (3.0L TURBO DIESEL) (LEFT FRONT OF ENGINE COMPT) COMPUTER DATA LINES SYSTEM DEFROST, LOWER AIR OUTLET IND DEFROST, LOWER AIR OUTLET SWITCH DISPLAY FRONT HEATER, AIR CONDITIONING USER INTERFACE CONTROL GRN/VIO WIRE GRY WIRE GRY/GRN WIRE HEADLIGHTS SYSTEM LOGIC LOWER AIR OUTLET IND LOWER AIR OUTLET SWITCH MAX WINDSHIELD DEFROST IND MAX WINDSHIELD DEFROST SWITCH NCA WIRE ON/OFF SWITCH REAR CLIMATE SWITCH REAR ON/OFF IND REAR ON/OFF SWITCH RECIRCULATION IND RECIRCULATION SWITCH RED/BRN WIRE RED/WHT WIRE SUNLOAD, AMBIENT LIGHT, SECURITY INDICATOR SENSOR SYNC IND SYNC SWITCH UPPER AIR OUTLET SWITCH VIO/BLK WIRE VIO/BLU WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/YEL WIRE

A/C EVAPORATOR TEMPERATURE SENSOR SIG AIR CONDITIONING SYSTEM ALL WINDOWS OPEN SW SIG AMBIENT LIGHT SENSOR SIG ANTI-LOCK BRAKES SYSTEM ANTI-THEFT SYSTEM AUTOSAR CAN BUS (+) 2 SERIAL DATA AUX DEVICE 2 SWITCHED VOLT BATT POSITIVE VOLT BATT POSITIVE VOLT 24 25 BLK WIRE BLK/VIO WIRE BLOWER MOTOR SPEED CTRL BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT END OF DASH) BODY CONTROL MODULE LIN BUS 6 BODY CTRL MODULE LIN BUS 5 BRN/BLK WIRE CARGO LAMP INDICATOR CTRL CARGO LAMP SWITCH SIG COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS DRIVER SOLAR SENSOR SIG ENGINE WIRING HARNESS JUNCTION BLOCK GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/GRN WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HVAC REMOTE ENABLE SIG HVAC SYSTEM ENABLE SIG IMMOBILIZER ANT LOW SIG IMMOBILIZER ANT SIG (+) INDICATOR DIMMING CTRL INSIDE AIR TEMPERATURE SENSOR SIG INTR PASSIVE ENTRY ANT 1 HIGH SIG INTR PASSIVE ENTRY ANT 1 LOW SIG MAJOR ENDGATE HIGH RELAY CTRL RUN/CRANK RELAY COIL CTRL MAJOR ENDGATE LOW RLY CTRL MINOR ENDGATE HIGH RELAY CTRL MULTI-FUNCTION POWER SUPPLY CONVERTER OUT OF PARK SIG POWER DISTRIBUTION SYSTEM POWER WINDOWS SYSTEM RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RETAINED ACC PWR RLY 2 COIL CTRL RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK SECURITY INDICATOR CTRL STRG WHEEL RESISTOR LADDER LOW REF TRACTION CONTROL SW SIG 1 TRUNK, TAILGATE, FUEL DOORS SYSTEM WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE

ABS/TRACTION CTRL HILL DESCENT CTRL SW SIG AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM SHIFT INTERLOCK SYSTEM ANTI-LOCK BRAKES SYSTEM AUTO HIGH BEAM ASSIST SW SIG BLK/GRY WIRE BLK/YEL WIRE BLOWER SPEED FEEDBACK SIG BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT END OF DASH) BODY CTRL MODULE LIN BUS 12 BRK TRANS SHIFT INTERLOCK SOL ACTR CTRL BRN WIRE BRN/BLK WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE CTRL SET/COAST/RESUME/ACCELERATE SW SIG DISTANCE SENSING CRUISE CTRL GAP UP/DOWN SW SIG DOME/READING LAMP ENABLE SIG DRIVER MODE 1 SW SIG ENDGATE REL SW ANALOG SIG INTERIOR GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE HAZARD WARNING SW SIG HEADLAMP SW FLASH SIG HEADLAMP SW OFF SIG HEADLAMP SW ON SIG HEADLAMP SW PARK LAMP SIG HEADLAMP SW REF HEADLAMP SW SIG HEADLIGHTS SYSTEM HIGH BEAM SELECT SW HIGH BEAM SIG HORN SW SIG HORNS SYSTEM IGN MODE SW ACCESSORY LED SIG IGN MODE SW MODE VOLT IGNITION MODE SW START LED SIG LANE DEPARTURE WARNING DISABLE SW SIG LANE DEPARTURE WARNING IND CTRL LEFT TURN SIG SW SIG MAJOR ENDGATE RELEASE SW SIG INTERIOR NAVIGATION SYSTEM PARK LOCK SOLENOID ACTUATOR CTRL POWER DISTRIBUTION SYSTEM REAR PARKING ASSIST DISABLE LED SIG REAR PARKING ASSIST DISABLE SIG RIGHT TURN SIG SW SIG SENS LOW REF SHIFT INTERLOCK SYSTEM STARTING/CHARGING SYSTEM STOP/START IND CTRL STOP/START SW SIG TAP UP/TAP DOWN SW SIG TAP UP/TAP DOWN SW SIG 2 ENHANCED DRIVER MODE 2 SW SIG TRAILER BRAKE APPLY SIG TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO/BLK WIRE VIO/BLU WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/VIO WIRE WINDSHIELD WASHER SW SIG WINDSHIELD WIPER SW LOW REF WINDSHIELD WIPER SW LOW SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/WHT WIRE

BACKUP ILL LP CTRL BACKUP LAMPS CIRCUIT BACKUP LMP CTRL BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/GRY WIRE CAN BUS (+) 2 SERIAL DATA (PINS: 12 TO 21 NOT USED) CAN BUS (-) 2 SERIAL DATA COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRK SIG ENGINE WIRING HARNESS BODY IGN JUNCTION BLOCK GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT HEADLAMP HI BEAM CTRL LEFT HEADLAMP LO BEAM CTRL LEFT REAR LICENSE PLATE LAMP LF DRL CTRL LF FOG LP CTRL LF PARK LMP CTRL LF TRN SIG LP CTRL LIGHTING CONTROL MODULE (LEFT END OF DASH) REAR LICENSE PLATE LP CTRL RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RF BRK LMP CTRL RF DRL CTRL RIGHT HEADLAMP HI BEAM CTRL RIGHT HEADLAMP LO BEAM CTRL RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RIGHT REAR LICENSE PLATE LAMP RR TRN SIG LP CTRL 2 SIG GND VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE

A/C IND A/C SWITCH AIR CONDITIONING CLUTCH AIR CONDITIONING COMPRESSOR (LOWER LEFT SIDE OF ENGINE) AIR CONDITIONING COMPRESSOR SOLENOID VALVE AIR CONDITIONING EVAPORATOR AIR TEMPERATURE SENSOR ANTI-THEFT SYSTEM AUTO IND AUTO SWITCH BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE CHARGE AIR COOLER COOLANT PUMP (3.0L TURBO DIESEL) (LEFT FRONT OF ENGINE COMPT) COMPUTER DATA LINES SYSTEM DEFROST, LOWER AIR OUTLET IND DEFROST, LOWER AIR OUTLET SWITCH DISPLAY FRONT HEATER, AIR CONDITIONING USER INTERFACE CONTROL GRN/VIO WIRE GRY WIRE GRY/GRN WIRE HEADLIGHTS SYSTEM LOGIC LOWER AIR OUTLET IND LOWER AIR OUTLET SWITCH MAX WINDSHIELD DEFROST IND MAX WINDSHIELD DEFROST SWITCH NCA WIRE ON/OFF SWITCH REAR CLIMATE SWITCH REAR ON/OFF IND REAR ON/OFF SWITCH RECIRCULATION IND RECIRCULATION SWITCH RED/BRN WIRE RED/WHT WIRE SUNLOAD, AMBIENT LIGHT, SECURITY INDICATOR SENSOR SYNC IND SYNC SWITCH UPPER AIR OUTLET SWITCH VIO/BLK WIRE VIO/BLU WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/YEL WIRE