GMC Sierra IV facelift (2022-2024) engine wiring harness junction block Wiring diagrams

2.7L TURBO 3.0L TURBO DIESEL 6.2L, 5.3L BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE CAN BUS (+) 2 CAN BUS (-) 3 CAN-BUS DC/AC CONVERTER CONTROL MODULE DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER FRONT SIDE DOOR WINDOW REGULATOR MOTOR ENGINE COOLANT FLOW CONTROL VALVE ENGINE COOLANT FLOW CONTROL VALVE BLOCK ENGINE COOLANT PUMP ENGINE WIRING HARNESS JUNCTION BLOCK EVAPORATIVE EMISSION CANISTER PURGE PUMP GRN/BLU WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE HOT W/ ENGINE CONTROLS SENSOR SUPPLY VOLTAGE RELAY ENERGIZED LIN BUS 1 LIN BUS 2 LIN BUS 3 LIN BUS 4 PASSENGER FRONT SIDE DOOR WINDOW REGULATOR MOTOR PASSENGER FRONT SIDE DOOR WINDOW SWITCH POWERTRAIN SENS BUS ENABLE SER DATA VIO/GRN WIRE W/ 230 VOLT WHT WIRE

AUTOSAR CAN BUS AUTOSAR CAN BUS (+) 5 SERIAL DATA AUTOSAR CAN BUS (+) 6 SERIAL DATA AUTOSAR CAN BUS (+) 7 SERIAL DATA BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY WIRING HARNESS JUNCTION BLOCK BRN WIRE DATA LINK CONNECTOR (LOWER LEFT SIDE OF DASH) DISTRIBUTION ENGINE WIRING HARNESS JUNCTION BLOCK ETHERNET BUS 1 ENABLE SIGNAL GRN WIRE GRN/BLK WIRE GRN/VIO WIRE GRY WIRE HOT AT ALL TIMES ON/OFF VEHICLE SWITCH PASSIVE START PASSIVE START SW 2 LOW REF PASSIVE START SW SIGNAL 2 POWER PRIVATE SERIAL CAN BUS (+) 1 PRIVATE SERIAL CAN BUS (-) 2 RED/BRN WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RUN/CRANK RELAY COIL CONTROL SERIAL DATA GATEWAY MODULE (BEHIND LEFT CENTER OF DASH) SW 2 LOW REF SW SIGNAL 2 SYSTEM TRAILER LAMP CONTROL MODULE VIO WIRE W/O SMART TRAILER INTEGRATION INDICATOR WHT WIRE YEL WIRE

2.7L TURBO 3.0L TURBO DIESEL 6.2L, 5.3L BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BLK WIRE CHARGE AIR COOLER COOLANT PUMP COMPUTER DATA LINES SYSTEM ENGINE COOLANT PUMP ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BRN WIRE GRN/VIO WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGN RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT COOLING FAN MOTOR LOGIC LOWER COOLING FAN MOTOR NCA WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RIGHT COOLING FAN MOTOR VIO/BLK WIRE VIO/BLU WIRE

2.7L TURBO 3.0L TURBO DIESEL 5 VOLT REF 1 ENG CONTROL VEHICLE SENS 5 VOLT REF 1 6.2L, 5.3L A/C COMPRESSOR CLUTCH RELAY CONTROL A/C REFRIGERANT PRESSURE SENS SIG AIR CONDITIONING SYSTEM BATTERY POSITIVE VOLT BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CHARGE AIR COOLER IN TEMP SENS LOW REF CHARGE AIR COOLER INLET TEMP SENS SIG CHARGE AIR COOLER OUT TEMP SENS LOW REF CHARGE AIR COOLER OUTLET TEMP SENS SIG COMPUTER DATA LINES SYSTEM COOLANT DIVERTER VALVE ACTUATOR CONTROL CLOSE COOLANT DIVERTER VALVE ACTUATOR CONTROL OPEN COOLANT DIVERTER VALVE POSITION SIG COOLANT FLOW CONTROL ACTUATOR CONTROL CLOSE COOLANT FLOW CONTROL ACTUATOR CONTROL OPEN COOLANT FLOW CONTROL VALVE POSITION SIG COOLANT TEMP SENS 2 SIG DRIVER INFORMATION CENTER DISPLAY ENG BLOCK COOLANT TEMP SIG ENG BLOCK TEMP SENS SIG ENG INLET COOLANT TEMP SIG ENG INTEGRATED EXHAUST MANIFOLD TEMP SENS ENGINE CONTROL MODULE ENGINE CONTROL SENS LOW REF 1 ENGINE CONTROL SENS LOW REFERENCE 2 ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE IND ENGINE INLET COOLANT TEMP SIG ENGINE INLET COOLANT TEMPERATURE SIG ENGINE OUTLET COOLANT TEMP SIG ENGINE WIRING HARNESS JUNCTION BLOCK ENGINE WTR CHARGE AIR COOLANT TEMP SIG GRN WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/VIO WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE J183 (3.0L TURBO DIESEL) LOGIC PVT SERIAL DATA POWERTRAIN CAN BUS (-) SERIAL DATA RED/BLU WIRE RED/BRN WIRE SIG GND VIO WIRE VIO/BLK WIRE WHT WIRE WHT/GRY WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE

2.7L TURBO 3.0L TURBO DIESEL EXCEPT 2.7L TURBO, 3.0L TURBO DIESEL ACCEL PEDAL POS LO REF 1 ACCEL PEDAL POS SIG 1 ACCL PEDAL POS 5 VOLT REF 1 ACCL PEDAL POS 5 VOLT REF 2 ACCL PEDAL POS LOW REF 2 ACCL PEDAL POS SIG 2 BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CTRL MODULE LIN BUS 12 BODY CTRL MODULE LIN BUS 6 BRK APPLY SENS CTRL BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRK POS SENS SIG BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE/ETC/TCC BRAKE SIG ENG CTRL SENS 5 VOLT REF 2 ENG CTRL VEHICLE SENS LO REF 1 ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BLK WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/GRN WIRE HIGH SPEED GMLAN DATA (-) 1 HOT AT ALL TIMES LOGIC LOW REFERENCE RED/BRN WIRE RED/GRY WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK SIG GND THRTL ACTR CTRL CLOSE THRTL ACTR CTRL OPEN THRTL POS SENS 5 VOLT REF THRTL POS SENS SIG 1 WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

AUTOSAR CAN BUS (+) 5 SERIAL DATA BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BLK WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT END OF DASH) BODY CTRL MODULE LIN BUS 3 BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR ENGINE WIRING HARNESS JUNCTION BLOCK FRONT HEATER, AIR CONDITIONING USER INTERFACE CONTROL GRN/YEL WIRE HOT AT ALL TIMES LOGIC NCA WIRE PASSENGER FRONT SIDE DOOR WINDOW CONTROL SWITCH PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS REAR DEFOGGER RLY CTRL REAR WINDOW DEFOGGER GRID REAR WINDOW DEFOGGER RELAY REAR WINDOW DEFROST IND REAR WINDOW DEFROST SWITCH RED/BLU WIRE WHT WIRE

AUTOSAR CAN BUS (+) 1 SERIAL DATA BATT POS VOLT BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BLK WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT FRONT SHOCK ABSORBER ACTUATOR LEFT FRONT SUSPENSION 4 CORNER LEVELING SYSTEM POSITION SENSOR LEFT REAR SHOCK ABSORBER ACTUATOR LEFT REAR SUSPENSION 2/4 CORNER AIR LEVELING POSITION SENSOR LF SHOCK ABSORBER ACTR CTRL LF SUSP POSI SENS LOW REF LF SUSP POSI SENS SIG LF SUSP POSI SENS VOLT REF LIN BUS 1 LOGIC LR SHOCK ABSORBER ACTR CTRL LR SUSP POSI SENS LOW REF LR SUSP POSI SENS SIG LR SUSP POSI SENS VOLT REF RED/GRN WIRE RF SHOCK ABSORBER ACTR CTRL RF SUSP POSI SENS LOW REF RF SUSP POSI SENS SIG RF SUSP POSI SENS VOLT REF RIGHT FRONT SHOCK ABSORBER ACTUATOR RIGHT FRONT SUSPENSION 4 CORNER LEVELING SYSTEM POSITION SENSOR RIGHT REAR SHOCK ABSORBER ACTUATOR RR SHOCK ABSORBER ACTR CTRL SIG GND SUSPENSION CONTROL MODULE WHT WIRE YEL/RED WIRE YEL/WHT WIRE

ACCESSORY AC, DC POWER CONTROL MODULE RELAY ACTIVE GRILLE AIR SHUTTER ACTUATOR ACTIVE GRILLE AIR SHUTTER ACTUATOR 2 AIR CONDITIONING CLUTCH AIR CONDITIONING COMPRESSOR BLK WIRE BLK/WHT WIRE BLOCK ENGINE COOLANT FLOW CONTROL VALVE BLOCK ENGINE COOLANT FLOW CONTROL VALVE BLU/RED WIRE BRAKE FLUID LEVEL INDICATOR SWITCH BRAKE MASTER CYLINDER) BRAKE SYSTEM CONTROL MODULE ENGINE COMPARTMENT COVER SWITCH ENGINE CONTROLS SENSOR SUPPLY VOLTAGE RELAY ENGINE RESTART RELAY ENGINE WIRING HARNESS JUNCTION BLOCK EVAPORATIVE EMISSION CANISTER PURGE PUMP GRN/ORG WIRE HIGH MOUNT STOP LAMP RELAY HORN IGNITION MAIN RELAY LEFT FRONT FOG LAMP LEFT FRONT SHORT RANGE RADAR SENSOR LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY LOGIC LONG RANGE FORWARD RANGE RADAR SENSOR MASS AIR FLOW SENSOR NCA WIRE PARKING LAMP RELAY REAR WINDOW DEFOGGER RELAY RIGHT FRONT FOG LAMP RIGHT FRONT HEADLAMP RIGHT FRONT SHORT RANGE RADAR SENSOR RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY STARTER RELAY STEERING WHEEL DRIVER MONITORING SYSTEM MODULE TRAILER BACKUP LAMP RELAY W/ ACTIVE UPPER GRILLE SHUTTERS W/ ACTIVE UPPER, LOWER GRILLE SHUTTERS W/ LANE ACTIVE SAFETY W/O LANE ACTIVE SAFETY WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY WINDSHIELD WASHER SOLVENT CONTAINER LEVEL SENSOR WINDSHIELD WIPER MOTOR WINDSHIELD WIPER MOTOR RELAY

10 SPEED A/T 3.0L TURBO DIESEL 5.3L, 6.2L ACTIVE GRILLE AIR SHUTTER ACTUATOR ACTIVE GRILLE AIR SHUTTER ACTUATOR 2 AIR CONDITIONING CLUTCH AIR CONDITIONING COMPRESSOR AIR CONDITIONING COMPRESSOR AIR CONDITIONING CLUTCH AIR HEATER AUDIO AMPLIFIER AUDIO/VIDEO RECEPTACLE AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION AUXILIARY FLUID PUMP AUXILIARY ENGINE COOLANT PUMP BLK WIRE BLK/WHT WIRE BLK/YEL WIRE CHARGE AIR COOLER COOLANT PUMP ENGINE RESTART RELAY ENGINE WIRING HARNESS JUNCTION BLOCK FRONT DRIVE AXLE ACTUATOR INSTRUMENT PANEL USB 2 PORT RECEPTACLE LEFT COOLING FAN MOTOR LOW LEVEL LOWER COOLING FAN MOTOR MID/HIGH LEVEL NCA WIRE RADIO RADIO CONTROL RIGHT COOLING FAN MOTOR STARTER RELAY STEERING WHEEL DRIVER MONITORING SYSTEM MODULE TELEMATIC CONTROL MODULE TRANSFER CASE CONTROL MODULE USB 2 PORT RECEPTACLE W/ ACTIVE UPPER GRILLE SHUTTERS W/ ONSTAR W/ PREMIUM AUDIO W/O PREMIUM AUDIO WHT WIRE

AUTOSAR CAN BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN/ORG WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DETECT OFF SWITCH ENGINE WIRING HARNESS JUNCTION BLOCK GRY/ORG WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT FRONT DOOR AIR BAG SIDE IMPACT SENSOR LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH LEFT REAR DOOR AIR BAG SIDE IMPACT SENSOR NCA WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/GRY WIRE PASSENGER RESTRAINTS OCCUPANT CLASSIFICATION SYSTEM MODULE PASSENGER SEAT BELT TENSION SENSOR RED/GRN WIRE RIGHT FRONT DOOR AIR BAG SIDE IMPACT SENSOR RIGHT FRONT ROW ROOF RAIL AIR BAG RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK SIG GND SW LO REF SW SIG VIO/WHT WIRE WHT WIRE WHT/ORG WIRE