GMC Sierra IV (2018-2022) left instrument panel center accessory function switch Wiring diagrams

BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BODY CONTROL MODULE EXHAUST BRK SW CTRL EXHAUST BRK SW SIG GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH RED WIRE RED/YEL WIRE WHT WIRE YEL WIRE

AUXILIARY BATTERY BATTERY BLK WIRE CARGO LAMP RELAY ELECTRICAL AUXILIARY HEATER HORN HVAC CONTROL MODULE IGNITION MAIN RELAY LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH REAR DEFOGGER RELAY RETAINED ACCESSORY POWER RELAY 1 RETAINED ACCESSORY POWER RELAY 2 RIGHT FRONT FOG LAMP RIGHT FRONT SIDE MARKER LAMP RIGHT FRONT TURN SIGNAL LAMP RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP MULTI-FUNCTION LED CONTROL MODULE RIGHT HIGH BEAM HEADLAMP RIGHT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH RIGHT LOW BEAM HEADLAMP RIGHT PARK/TURN SIGNAL LAMP STOP LAMP RELAY TRAILER BACKUP LAMPS RELAY VEHICLE STABILITY CONTROL SWITCH WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY

BLK WIRE BLK/WHT WIRE BLU/GRY WIRE COMPUTER DATA LINES SYSTEM DIMMER SWITCH IND DOOR AJAR IND DRIVER WINDOW/ OUTSIDE REAR VIEW MIRROR SWITCH FRONT OVERHEAD CONSOLE ASSEMBLY GRN/BRN WIRE GRN/YEL WIRE LANE KEEP ASSIST LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH LOGIC PARK ASSIST PARKING ASSIST CONTROL MODULE RED/YEL WIRE RIGHT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH VIO/WHT WIRE W/ LIGHT SENSITIVE REAR VIEW MIRROR W/O LIGHT SENSITIVE REAR VIEW MIRROR WHT WIRE WINDSHIELD FRONT VIEW CAMERA YEL WIRE

12 VOLT REF ALERT LED CTRL ALERT LED CTRL DIMMING CTRL BLK WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) COLLISION ALERT INDICATORS COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY FORWARD COLLISION ALERT SWITCH GRN WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING SWITCH LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LOW SPD GMLAN SERIAL DATA 2 RED/GRN WIRE REFLECTED LED DISPLAY DIMMING CTRL RIGHT INSTRUMENT PANEL FUSE BLOCK STEERING WHEEL AIR BAG COIL UP/DOWN SW SIG VIO WIRE VIO/BLK WIRE W/O HEAD-UP DISPLAY WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WINDSHIELD FRONT VIEW CAMERA YEL WIRE

BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DISABLE SIG DRIVER INFORMATION CENTER DISPLAY GMLAN SERIAL DATA GRN WIRE GRN/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH LEFT MIDDLE FRONT PARKING ASSIST SENSOR LEFT MIDDLE REAR PARKING ASSIST SENSOR LEFT OUTER FRONT PARKING ASSIST SENSOR LEFT OUTER REAR PARKING ASSIST SENSOR LEFT/RIGHT/MID SENS LF MIDDLE SENS SIG LF OUTER SENS SIG LOGIC LR OUTER SENS SIG OBJECT SENS LOW REF OBJECT SENS SPLY VOLT PARKING ASSIST CONTROL MODULE PARKING ASSIST IND PARKING ASSIST SWITCH REAR PARK ASSIST DISABLE SIG RED/GRN WIRE RF MIDDLE SENS SIG RF OUTER SENS SIG RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT MIDDLE FRONT PARKING ASSIST SENSOR RIGHT MIDDLE REAR PARKING ASSIST SENSOR RIGHT OUTER FRONT PARKING ASSIST SENSOR RIGHT OUTER REAR PARKING ASSIST SENSOR RR MIDDLE SENS SIG RR OUTER SENS SIG SENS LOW REF SERIAL DATA COMM ENABLE 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

ALL WIND OPEN SW SIG ABS/TRACTION CTRL HILL DESCENT CTRL SW SIG BLK WIRE BLU/YEL WIRE BODY CONTROL MODULE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM DOWN DRIVER WINDOW MOTOR EXPRESS GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH LIN BUS 3 LOGIC OPTION 1 OPTION 1 OPTION 2 OPTION 2 OPTION 1 OPTION 2+ PASSENGER WINDOW MOTOR PASSENGER WINDOW SWITCH (W/ EXPRESS UP/DOWN) RED/BLU WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH VIO/GRY WIRE W/ EXPRESS UP/DOWN W/ MEMORY W/O MEMORY OPTION 1 OPTION 2 YEL WIRE YEL/BLK WIRE

2.7L TURBO 3.0L TURBO DIESEL 4.3L/ 5.3L 5.3L, 6.2L 6.2L AUTO STOP START SWITCH SIGNAL BATTERY BATTERY CURRENT SENSOR BATTERY SENSOR MODULE BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BODY CONTROL MODULE (LEFT END OF DASH) COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) EXCEPT 4.3L GRN WIRE GRN/BLK WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT W/ IGNITION MAIN RELAY ENERGIZED IGN MODE SW MODE VOLT IGNITION KEY RESISTOR SIGNAL IGNITION MODE SWITCH IGNITION SWITCH KEYLESS ENTRY CONTROL MODULE (BEHIND LEFT SIDE OF DASH) LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH NCA WIRE OFF OFF/RUN/CRANK IGNITION VOLTAGE PASSIVE START SW 2 LOW REF PASSIVE START SW SIG 2 POWER DISTRIBUTION SYSTEM PUSH BUTTON START CHALLENGE ACTIVE SIGNAL RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH RUN WIRE RUN/CRANK IGNITION 1 VOLTAGE STARTER MOTOR STARTER PINION SOLENOID ACTUATOR RELAY STARTER PINION SOLENOID RELAY CONTROL STARTER RELAY UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRN WIRE W/ FLEXRIDE MODE SYSTEM W/ START/STOP SYSTEM W/O FLEXRIDE MODE SYSTEM W/O START/STOP SYSTEM WHT WIRE WHT/BLK WIRE WHT/GRY WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/VIO WIRE

AIR BAG IND AIR BAG OFF IND AIR BAG ON IND BATT POS VOLT PASS SEAT BELT IND BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/ORG WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY FRONT OVERHEAD CONSOLE ASSEMBLY GRN WIRE GRY WIRE GRY/GRN WIRE GRY/ORG WIRE HI SPD GMLAN (-) 2 INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH LO SPD GMLAN LOGIC LOW SPD GMLAN SERIAL DATA MOD STAGE 1 HI MOD STAGE 1 LO MOD STAGE 2 HI MOD STAGE 2 LO ORG/ WIRE ORG/GRN WIRE ORG/VIO WIRE ORG/WHT WIRE PASS AIR BAG OFF IND PASS AIR BAG ON IND PASS MOD SW RET PASS MOD SW SIG PASS STAGE 1 HI PASS STAGE 1 LO PASS STAGE 2 HI PASS STAGE 2 LO PASSENGER INSTRUMENT PANEL AIR BAG RED/GRN WIRE SD COMM ENABLE SEAT BELT IND SERIAL DATA SHORTING BAR STEERING WHEEL AIR BAG COIL VIO WIRE VIO/WHT WIRE W/ ROLL OVER SENSING SWITCH WHT WIRE WHT/BLU WIRE WHT/ORG WIRE YEL WIRE YEL/ORG WIRE