GMC Sierra IV facelift (2022-2024) computer data lines system Wiring diagrams

AUTO SWITCH BEHIND STEERING WHEEL) BLK WIRE BLK/BRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT END OF DASH) BRAKE APPLY BRAKE APPLY SENS CTRL BRAKE APPLY SENS SIG BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DRIVER MODE 1 SW SIG ENHANCED DRIVER GRN/BLK WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE LADDER LOW REF LEFT SWITCH MODE 2 SW SIG RED/WHT WIRE RED/YEL WIRE RIDE CONTROL SWITCH (W/ FLEXRIDE MODE SYSTEM SWITCH) (LEFT SIDE OF DASH) RIGHT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH RIGHT SWITCH SENS LOW REF SERIAL DATA (-) (1) SNOW SWITCH SPORT SWITCH STEERING WHEEL AIR BAG COIL STEERING WHEEL RADIO VOLUME SWITCH STEERING WHEEL RESISTOR TAP UP/TAP DOWN SW SIG TOW/HAUL SWITCH VIO WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

AUTO SWITCH AUTOMATIC TRANSMISSION CONTROL LEVER BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT END OF DASH) BRAKE APPLY BRAKE APPLY SENS CTRL BRAKE APPLY SENS SIG BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DRIVER INFORMATION CENTER DISPLAY DRIVER MODE 1 SW SIG ENHANCED DRIVER GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE INSTRUMENT PANEL CLUSTER CONTROL MODULE LADDER LOW REF LEFT SWITCH LIN BUS 1 LOGIC MODE 2 SW SIG RIDE CONTROL SWITCH (W/ FLEXRIDE MODE SYSTEM SWITCH) (LEFT SIDE OF DASH) RIGHT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH RIGHT SWITCH SENS LOW REF SERIAL DATA (-) (1) SNOW SWITCH SPORT SWITCH STEERING WHEEL RESISTOR TAP UP/TAP DOWN SW SIG TOW/HAUL SWITCH VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN 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

BATT POS VOLT BLK WIRE BODY WIRING HARNESS JUNCTION BLOCK BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DRIVER FRONT SEAT BACK LUMBAR PUMP DRIVER LIN BUS 1 FRONT SEAT BOLSTER MEMORY MODULE DRIVER PRIMARY FRONT SEAT BLADDER CONTROL MODULE DRIVER SECONDARY FRONT SEAT BLADDER CONTROL MODULE DRV LIN BUS 1 FRONT SEAT BOLSTER MEMORY MODULE DRV SEAT ADJUSTER MEMORY MODULE LIN BUS 2 DRV SEAT BOLSTER PUMP LOW REFERENCE DRV SEAT LUMBAR/ BOLSTER PUMP CTRL GRN/BLK WIRE GRN/GRY WIRE HOT AT ALL TIMES NCA WIRE RED/BRN WIRE WHT/BLU WIRE

BATT POS VOLT BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BODY CONTROL MODULE LIN BUS 11 BODY WIRING HARNESS JUNCTION BLOCK BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE 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 BACK HEATING TEMP SNS SIG DRV SEAT BLOWER MOTOR CTRL 1 DRV SEAT HEATING ELEMENT LO REF DRV SEAT HEATING TEMP SNS SIG ENGINE WIRING HARNESS JUNCTION BLOCK FRONT SEAT HEATER VENT CONTROL MODULE (UNDER FRONT PASSENGER SEAT) GRN/VIO WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED NCA WIRE PASS HEATED BACK THERMISTOR LO REF PASS HEATED SEAT THERMISTOR LO REF PASS SEAT BACK HEATING ELEMENT CTRL PASS SEAT BACK HEATING TEMP SNS SIG PASS SEAT BLOWER MOTOR CTRL 1 PASS SEAT HEATING ELEMENT CTRL PASS SEAT HEATING ELEMENT LO REF RED/BRN WIRE RED/GRN WIRE VIO/WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE YEL/GRY WIRE

BACK SWITCH BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM DOUBLE CAB/ CREW CAB DRIVER BACK DRIVER CUSHION/ DRIVER FRONT SEAT BACK VENTILATION BLOWER DRIVER FRONT SEAT CUSHION VENTILATION BLOWER FRONT HEATER, AIR CONDITIONING USER INTERFACE CONTROL GRN/VIO WIRE GRY/BLK WIRE IND LOGIC MED NCA WIRE PASSENGER PASSENGER BACK PASSENGER CUSHION/ PASSENGER FRONT SEAT BACK HEATER PASSENGER FRONT SEAT BACK VENTILATION BLOWER PASSENGER FRONT SEAT CUSHION HEATER PASSENGER FRONT SEAT CUSHION VENTILATION BLOWER SWITCH VENTILATION VENTILATION SWITCH VIO/WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE

BEHIND STEERING WHEEL) BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH GRN/BLK WIRE GRY/YEL WIRE HEATED STEERING WHEEL IND HEATED STEERING WHEEL SWITCH HOT AT ALL TIMES LOGIC NCA WIRE RED/BRN WIRE RED/GRN WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK STEERING WHEEL AIR BAG COIL STEERING WHEEL DRIVER MONITORING SYSTEM MODULE STEERING WHEEL HEATER VIO/BLU WIRE WHT/YEL WIRE YEL/GRY WIRE YEL/RED WIRE

BATT POS VOLT BEHIND STEERING WHEEL) BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH GRN/BLK WIRE GRY/YEL WIRE HEATED STEERING WHEEL IND HEATED STEERING WHEEL MODULE HEATED STEERING WHEEL SWITCH HIGH CNTRL HOT AT ALL TIMES LIN BUS 12 LOGIC LOW CNTRL NCA WIRE RED/BRN WIRE RED/GRN WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK SENS SIG STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATER SW LED CTRL SW SIG VIO/BLU WIRE VOLT REF WHT/YEL WIRE YEL/GRY WIRE YEL/RED WIRE

BATT POS VOLT BLK WIRE BODY WIRING HARNESS JUNCTION BLOCK COMPUTER DATA LINES SYSTEM GRN/BLU WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES PASS LIN BUS 1 FRONT SEAT BOLSTER MEMORY MODULE PASS SEAT ADJUSTER MEMORY MODULE LIN BUS 2 PASS SEAT BOLSTER PUMP LOW REFERENCE PASS SEAT LUMBAR/ BOLSTER PUMP CTRL PASSENGER FRONT SEAT BACK LUMBAR PUMP PASSENGER PRIMARY FRONT SEAT BLADDER CONTROL MODULE PASSENGER SECONDARY FRONT SEAT BLADDER CONTROL MODULE RED/BRN WIRE

BATT POSITIVE VOLT BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BODY CONTROL MODULE LIN BUS 2 BODY WIRING HARNESS JUNCTION BLOCK BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DISPLAY GRN/BLK WIRE GRN/BRN WIRE GRN/VIO WIRE GRY WIRE HOT AT ALL TIMES LEFT REAR CUSHION HEATER SWITCH LEFT REAR SEAT CUSHION HEATER LOGIC LR CUSHION THERMISTOR FEEDBACK SIG LR SEAT CUSHION HEATING ELEMENT CTRL LR SEAT CUSHION HEATING ELEMENT LO REF LR SEAT CUSHION TEMP SENS SIG NCA WIRE ON/OFF SWITCH REAR SEAT HEATER CONTROL MODULE (UNDER FRONT OF REAR SEAT) REAR SEAT HEATER SWITCH RED/BLU WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RIGHT REAR CUSHION HEATER SWITCH RIGHT REAR SEAT CUSHION HEATER RR CUSHION THERMISTOR FEEDBACK SIG RR SEAT CUSHION HEATING ELEMENT CTRL RR SEAT CUSHION HEATING ELEMENT LO REF RR SEAT CUSHION TEMP SENS SIG WHT/BLK WIRE WHT/BLU WIRE YEL/WHT WIRE