GMC Sierra IV (2018-2022) 6.6l turbo diesel Wiring diagrams

10 SPEED A/T 6 SPEED A/T 6.6L TURBO DIESEL AUTOMATIC TRANSMISSION ASSEMBLY AUXILIARY HEATER COOLANT PUMP RELAY BATTERY CURRENT SENSOR BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE CONTROL SOLENOID VALVE ASSEMBLY ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROL MODULE ENGINE COOLANT LEVEL SWITCH ENGINE OIL LEVEL SWITCH GLOW PLUG CONTROL MODULE IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 IGNITION COIL 5 IGNITION COIL 6 IGNITION COIL 7 IGNITION COIL 8 MULTI-FUNCTION INTAKE AIR SENSOR NITROGEN OXIDES SENSOR 1 POWER TAKE-OFF CONTROL MODULE TRANSMISSION CONTROL MODULE TURBOCHARGER VANE POSITION ACTUATOR UNDERHOOD FUSE BLOCK

6.6L TURBO DIESEL A/C COMPRESSOR ACTIVE GRILLE AIR SHUTTER 1 ACTUATOR ACTIVE GRILLE AIR SHUTTER 2 ACTUATOR AUXILIARY BATTERY RELAY 1 AUXILIARY BATTERY RELAY 2 BATTERY AUXILIARY FUSE BLOCK BLK WIRE CHARGE AIR COOLER COOLANT PUMP COMPRESSOR CLUTCH COOLING FAN CLUTCH COOLING FAN RELAY ELECTRICAL AUXILIARY HEATER EXHAUST PARTICULATE MATTER SENSOR FRONT AXLE ENGAGEMENT ACTUATOR INFO DISPLAY MODULE J156 (6.6L TURBO DIESEL) J361 (6.6L TURBO DIESEL) NCA WIRE NITROGEN OXIDES SENSOR 2 POWER STEERING CONTROL MODULE RADIO REDUCTANT CONTROL MODULE STARTER RELAY TELEMATICS COMMUNICATIONS INTERFACE CONTROL MODULE TRANSFER CASE CONTROL MODULE UNDERHOOD AUXILIARY FUSE BLOCK UNDERHOOD FUSE BLOCK VIDEO PROCESSING CONTROL MODULE W/ AUXILIARY BATTERIES W/ ON STAR WHT WIRE

6.6L TURBO DIESEL AUXILIARY CHASSIS CONTROL MODULE BASE BASE EQUIPMENT BLK WIRE CAMPER TRAILER CONNECTOR ENDGATE MARKER LAMP EXCEPT BASE EXCEPT BASE EQUIPMENT FUEL HEATER/ WATER IN FUEL SENSOR FUEL PUMP DRIVER CONTROL MODULE GMC INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE LOGIC NCA WIRE PASSENGER PRESENCE MODULE RIGHT BACKUP LAMP RIGHT CARGO LAMP RIGHT FENDER REAR SIDE MARKER LAMP RIGHT FRONT REAR FENDER CLEARANCE LAMP RIGHT LOWER TAIL/STOP, TURN SIGNAL LAMP RIGHT REAR REAR FENDER CLEARANCE LAMP RIGHT REAR SIDE MARKER LAMP RIGHT STOP/TURN SIGNAL LAMP RIGHT TAIL/ STOP/ TURN SIGNAL LAMP RIGHT UPPER TAIL/STOP, TURN SIGNAL LAMP TRAILER CONNECTOR TRAILER LIGHTING CONTROL MODULE TRAILER TIRE PRESSURE INDICATOR MODULE W/ TRAILER INFORMATION INDICATOR W/O TRAILER INFORMATION INDICATOR WHT WIRE

6.6L TURBO DIESEL AJAR SW SIG AMBT AIR SENS SIG AMBT AIR TEMP SENS LOW REF BLK WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN/BLU WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE OIL LEVEL SWITCH ENGINE OIL PRESSURE CONTROL SOLENOID VALVE ENGINE OIL PRESSURE SENSOR ENGINE OIL TEMPERATURE SENSOR GMLAN SERIAL DATA GRN/GRY WIRE GRN/YEL WIRE GRY WIRE HI SPD GMLAN SERIAL DATA LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR LIN BUS 3 LIN BUS 4 LOGIC LOGIC DRIVER WINDOW MOTOR LOGIC RIGHT REAR WINDOW SWITCH LR DR MIRROR AMBIENT AIR TEMPERATURE SENSOR OIL LEVEL SW SIG OIL PRESSURE SENS 5 VOLT REF OIL PRESSURE SENS LOW REF 1 OIL PRESSURE SENS SIG OIL PUMP CTRL OIL TEMP SENS SIG PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW SWITCH PNK LF DR AJAR SW SIG WIRE PNK WIRE PRK BRK SW RF DR RF DR AJAR SW SIG RIGHT REAR DOOR LATCH ASSEMBLY (CREW CAB, DOUBLE CAB) (REAR OF RIGHT REAR DOOR) RR DR - SW SIG VIO/BLU WIRE W/ POWER OPERATED WINDOW W/0 EXPRESS UP/DOWN W/ POWER OPERATED WINDOW, EXPRESS UP/DOWN W/O POWER OPERATED WINDOW WHT WIRE WHT/RED WIRE YEL/BRN WIRE

6.6L TURBO DIESEL AUXILIARY BATTERY AUXILIARY BATTERY RELAY 1 AUXILIARY BATTERY RELAY 2 AUXILIARY CHASSIS CONTROL MODULE AUXILIARY GENERATOR BATTERY BATTERY FUSE BLOCK BLK WIRE BODY CONTROL MODULE ELECTRICAL AUXILIARY HEATER ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROL MODULE EVAPORATIVE EMISSION VENT SOLENOID VALVE FUEL PUMP DRIVER CONTROL MODULE GENERATOR GLOW PLUG CONTROL MODULE POWER STEERING CONTROL MODULE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE REDUCTANT CONTROL MODULE STARTER MOTOR TO INSTRUMENT PANEL AUXILIARY FUSE BLOCK (DIAGRAM 10 OF 10) TO LEFT INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 5 OF 10) TO RIGHT INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 10) TO RIGHT INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 4 OF 10) TO TRAILER CONNECTOR (CAMPER) (DIAGRAM 2 OF 10) TRAILER LIGHTING CONTROL MODULE TRANSFER CASE CONTROL MODULE VIO/BRN WIRE

6.6L TURBO DIESEL A/C COMPRESSOR CLUTCH RELAY BLUNT CUT) CAMPER/ FROM AUXILIARY BATTERY FUSE BLOCK (DIAGRAM 1 OF 10) LEFT SIDE OBJECT SENSOR MODULE NOT USED RED/GRN WIRE RED/VIO WIRE RIGHT SIDE OBJECT SENSOR MODULE STARTER RELAY TO AUXILIARY UNDERHOOD FUSE BLOCK (DIAGRAM 6 OF 10) TO ENGINE CONTROLS IGNITION RELAY (DIAGRAM 7 OF 10) TRAILER BRAKES POWER CONTROL MODULE TRAILER BRAKES PROVISION TRAILER CAMPER PROVISION TRAILER CONNECTOR TRAILER TIRE PRESSURE INDICATOR MODULE W/ AUXILIARY BATTERY RELAYS W/ INTEGRATED TRAILER BRAKE CONTROL W/ SPECIAL EQUIPMENT W/O AUXILIARY BATTERY RELAYS W/O SPECIAL EQUIPMENT

6.6L TURBO DIESEL BLK WIRE BLOWER MOTOR BODY CONTROL MODULE BRN WIRE CENTER CONSOLE REAR ACCESSORY POWER RECEPTACLE CENTER CONSOLE REAR USB RECEPTACLE CHARGE IND CTRL CREW CAB EXTENDED CAB DRIVER SEAT ADJUSTER SWITCH DRIVER SEAT LUMBAR SUPPORT SWITCH DRIVER WINDOW MOTOR FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 10) FROM IGNITION MAIN RELAY (DIAGRAM 8 OF 10) FRONT OVERHEAD CONSOLE ASSEMBLY GRN WIRE GRY/GRN WIRE GRY/VIO WIRE INSTRUMENT PANEL ACCESSORY POWER RECEPTACLE KEYLESS ENTRY CONTROL MODULE LEFT REAR WINDOW SWITCH WINDOW SWITCH LOGIC MAL IND CTRL MOBILE DEVICE WIRELESS CHARGER MODULE NOT USED PASSENGER SEAT LUMBAR SUPPORT SWITCH PASSENGER WINDOW MOTOR PASSENGER WINDOW SWITCH PWR CTRL REAR SEAT ACCESSORY POWER RECEPTACLE REAR SEAT USB RECEPTACLE RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RETAINED ACCESSORY POWER RELAY 1 RETAINED ACCESSORY POWER RELAY 2 RIGHT REAR WINDOW SWITCH SEAT MEMORY CONTROL MODULE VIO WIRE VIO/YEL WIRE W/ ACCESSORY SUPPLY W/ BATTERY SUPPLY W/ EXPRESS UP/DOWN W/ KEYLESS ENTRY W/ MEMORY W/O EXPRESS UP/DOWN W/O KEYLESS ENTRY W/O MEMORY WHT WIRE YEL WIRE

6.6L TURBO DIESEL ACCESSORY RELAY AUXILIARY AUDIO INPUT AUXILIARY HEATER COOLANT PUMP RELAY BODY CONTROL MODULE BRN/BLK WIRE CARGO LAMP RELAY ENGINE CONTROLS IGNITION RELAY FROM A/C COMPRESSOR CLUTCH RELAY (DIAGRAM 2 OF 10) FRONT FOG LAMP RELAY HEAD-UP DISPLAY HEADLAMP HIGH BEAM RELAY HEADLAMP RELAY HORN RELAY HVAC CONTROL MODULE HVAC CONTROLS INFO DISPLAY MODULE INSTRUMENT CLUSTER LEFT STEERING WHEEL CONTROLS SWITCH LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY PARK LAMPS RELAY REAR DEFOGGER RELAY REAR SEAT HEATING SWITCH RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT STEERING WHEEL CONTROLS SWITCH RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY STEERING WHEEL AIR BAG COIL STOP LAMP RELAY TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TO ACCESSORY DC/AC POWER INVERTER MODULE (DIAGRAM 9 OF 10) TO IGNITION MAIN RELAY (DIAGRAM 8 OF 10) TRAILER BACKUP LAMPS RELAY USB RECEPTACLE W/ ONSTAR WHT/GRN WIRE WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY

10 SPEED A/T 6 SPEED A/T 6.6L TURBO DIESEL AUTOMATIC TRANSMISSION ASSEMBLY AUXILIARY CHASSIS CONTROL MODULE BLK WIRE BLU/VIO WIRE BODY CONTROL MODULE COLLISION ALERT INDICATORS CONTROL SOLENOID VALVE ASSEMBLY DRIVER BACK SEAT BLOWER MOTOR DRIVER CUSHION SEAT BLOWER MOTOR ELECTRICAL AUXILIARY HEATER ENGINE CONTROL MODULE FROM TRAILER BACKUP LAMPS RELAY (DIAGRAM 7 OF 10) FRONT AXLE ENGAGEMENT ACTUATOR FRONT OVERHEAD CONSOLE ASSEMBLY FUEL PUMP DRIVER CONTROL MODULE GLOW PLUG CONTROL MODULE GRN WIRE GRN/VIO WIRE IGNITION MAIN RELAY INSIDE REAR VIEW MIRROR INSTRUMENT CLUSTER NCA WIRE PASSENGER BACK SEAT BLOWER MOTOR PASSENGER CUSHION SEAT BLOWER MOTOR REAR VIEW CAMERA REDUCTANT CONTROL MODULE RIGHT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH SERIAL DATA GATEWAY MODULE STEERING COLUMN LOCK MODULE STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATING CONTROL MODULE TO INSTRUMENT PANEL AUXILIARY FUSE BLOCK (DIAGRAM 10 OF 10) TO RETAINED ACCESSORY POWER RELAY 1 (DIAGRAM 3 OF 10) TRAILER LIGHTING CONTROL MODULE TRANSMISSION CONTROL MODULE VIO WIRE VIO/BLK WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE W/ BODY EQUIPMENT W/ DUAL TANK W/ FRONT HEATED SEATS W/ INTEGRATED TRAILER BRAKE CONTROL W/O BODY EQUIPMENT W/O DUAL TANK W/O INTEGRATED TRAILER BRAKE CONTROL

4108 (OR 2203) 5 VOLT REF 6.6L TURBO DIESEL AIR CONDITIONING SYSTEM AUTO SWITCH BLK WIRE BLK/GRY WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BODY CONTROL MODULE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVE MODE SELECT SWITCH ENGINE CONTROL MODULE GRN WIRE GRY WIRE HI SPD GMLAN SER DATA (+) 1 J107 (6.6L) J110 (6.6L) LEFT SWITCH LOW REF NCA WIRE RIGHT SWITCH RUN IGNITION 3 VOLTAGE SNOW SWITCH SPORT SWITCH SW SIG TRANSFER CASE MOTOR VIO WIRE VIO/BRN WIRE WHT WIRE WHT/BRN WIRE WHT/GRN WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE