GMC Sierra IV (2018-2022) blu/vio Wiring diagrams

6.6L DIESEL AUXILIARY BATTERY AUXILIARY BATTERY FUSE BLOCK AUXILIARY GENERATOR BATTERY BATTERY CURRENT SENSOR BATTERY FUSE BLOCK BATTERY POSITIVE VOLTAGE BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN WIRE CHARGE IND CTRL CHARGE INDICATOR COMPUTER DATA LINES SYSTEM CURRENT SENSOR LOW REF CURRENT SENSOR SIG DRIVER INFORMATION CENTER DISPLAY DUTY CYCLE SIG ENGINE CONTROL MODULE GENERATOR GRN WIRE GROUND CURRENT SENSOR VOLT REF GRY WIRE GRY/GRN WIRE GRY/VIO WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED J112 (6.6L DIESEL) J158 (6.6L) LOGIC INSTRUMENT CLUSTER LOW SPEED GMLAN SERIAL DATA ORG/ WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RUN/CRANK IGN 1 VOLT SERIAL DATA (-) 7 SNOW PLOW FUSE BLOCK (IF EQUIPPED) (RIGHT FRONT OF ENGINE COMPT) SNOW PLOW FUSE HOLDER SNOW PLOW RELAY UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRN WIRE W/ SNOW PLOW PROVISIONS W/O SNOW PLOW PROVISIONS WHT WIRE WHT/YEL WIRE YEL WIRE

2.7L TURBO 3.0L TURBO DIESEL BATT POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT END OF DASH) BRAKE APPLY SENSOR CONTROL BRAKE APPLY SENSOR SIG BRAKE PEDAL POSITION SENSOR BRAKE POSITION SENSOR BRN/GRN WIRE BRN/WHT WIRE CARGO BED LAMP CONTROL CARGO LAMP SW SIG COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REAR VIEW MIRROR PUDDLE LAMP CONTROL PUDDLE LAMP CONTROL ENGINE CONTROL ENGINE CONTROL MODULE ENGINE CONTROL SENS LO REF 3 FRT TURN LAMP FEEDBACK SIG GMLAN DATA - (1) GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HAZARD SW LT TURN SIG HAZARD SW RT TURN SIG HAZARD SW SIG HEADLAMP SW PARK LAMP SIG HOT AT ALL TIMES LAMP RELAY CONTROL LEFT HEADLAMP RELAY CONTROL LEFT LICENSE PLATE LAMP LF TURN SIG LAMP CONTROL LICENSE PLATE LAMP LR STOP/TURN LAMP CONTROL PARK LAMP RELAY CONTROL POLICE SELECT SUPPLY VOLT 4 PUDDLE LAMP CONTROL REAR LICENSE LAMP CONTROL RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RF TURN LAMP FEEDBACK SIG RF TURN SIG LAMP CONTROL RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT LICENSE PLATE LAMP RR STOP/TURN LAMP CONTROL SENS LO REF SER DATA (-) (1) STOP LAMP RELAY CONTROL SYSTEM TURN SIGNAL/ MULTI-FUNCTION SWITCH VEHICLE STABILITY CONTROL SWITCH VIO/BLU WIRE VIO/WHT WIRE VIO/YEL WIRE W/ FLEETSIDE PICK-UP BOX W/O FLEETSIDE PICK-UP BOX WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE

BACKUP LAMPS CIRCUIT BLK WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRANK DATA 2 (+) DRIVER INFORMATION CENTER DISPLAY GMLAN GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN INSTRUMENT CLUSTER LEFT BACKUP LAMP LEFT LOWER TAIL/STOP, TURN SIGNAL LAMP LEFT REAR SIDE MARKER LAMP LEFT TAIL LAMP ASSEMBLY LEFT TURN IND LEFT UPPER TAIL/STOP, TURN SIGNAL LAMP LO SPD LOGIC PARKS LAMPS IND RED WIRE RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT BACKUP LAMP RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT LOWER TAIL/STOP, TURN SIGNAL LAMP RIGHT REAR SIDE MARKER LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TURN IND RIGHT UPPER TAIL/STOP, TURN SIGNAL LAMP RUN/ SER VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE W/O DRIVER INFO ENHANCED DISPLAY INSTRUMENT WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE

2.7L TURBO AUTO BATTERY FUSE BLOCK BLK WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/WHT WIRE CARGO LAMP IND CARGO LAMP SWITCH DRIVER OUTSIDE REAR VIEW MIRROR CARGO LAMP DRIVER OUTSIDE REAR VIEW MIRROR FORWARD EXTERIOR FLOOD LAMP DRIVER OUTSIDE REAR VIEW MIRROR LOWER EXTERIOR FLOOD LAMP DRIVER OUTSIDE REAR- VIEW MIRROR GRN/GRY WIRE GRN/VIO WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HEAD HEADLAMP SWITCH HOT AT ALL TIMES LEFT CARGO LAMP LEFT MIDDLE SIDE MARKER LAMP LEFT TURN SIGNAL REPEATER LAMP OFF PARK PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR CARGO LAMP PASSENGER OUTSIDE REAR VIEW MIRROR FORWARD EXTERIOR FLOOD LAMP PASSENGER OUTSIDE REAR VIEW MIRROR LOWER EXTERIOR FLOOD LAMP RED/GRN WIRE RIGHT CARGO LAMP RIGHT MIDDLE SIDE MARKER LAMP RIGHT TURN SIGNAL REPEATER LAMP VIO/GRY WIRE VIO/WHT WIRE W/ AUXILIARY CARGO, CLEAR LAMPS W/ LIGHT SENSITIVE REAR VIEW MIRROR W/O AUXILIARY CARGO, CLEAR LAMPS W/O LIGHT SENSITIVE REAR VIEW MIRROR WHT/BLU WIRE WHT/VIO WIRE YEL/BRN WIRE

AUDIO AMPLIFIER (UNDER REAR OF CENTER CONSOLE) BATT POS VOLT BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BRN/BLK WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM ETHERNET BUS 6 (-) GRN WIRE GRN/BLK WIRE GRY/BLK WIRE GRY/GRN WIRE HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT INSTRUMENT PANEL FUSE BLOCK LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT/REAR SUBWOOFER SPKR (-) LOW REF LEFT/REAR SUBWOOFER SPKR CTRL (+) LF SPKR LF SPKR 1 (-) LF SPKR SIG (-) (1) LR SPKR NCA WIRE RED/YEL WIRE RF SPKR RF SPKR 1 (-) RF SPKR SIG (-) (1) RIGHT FRONT DOOR SPEAKER RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RR SPKR SERIAL DATA 2 SUBWOOFER SPEAKER WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

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

BATT POS BLK WIRE BLK/WHT WIRE BLU/VIO WIRE COMPUTER DATA LINES SYSTEM CRANK DATA DATA 2 (+) DOOR AJAR IND DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER EXTERIOR DOOR HANDLE SWITCH DRIVER INFORMATION CENTER DISPLAY GMLAN GMLAN SERIAL GND 18 GRN WIRE GRN/BLK WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED ING 1 INSTRUMENT CLUSTER LCK STATUS SIG LEFT FRONT DOOR HANDLE KEYLESS ENTRY ANTENNA LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LEFT REAR EXTERIOR DOOR HANDLE SWITCH LO SPD LOCK SIG LOGIC NCA WIRE OFF/ACC VOLT PASSENGER EXTERIOR DOOR HANDLE ASSEMBLY PASSENGER EXTERIOR DOOR HANDLE SWITCH PNK WIRE RED/GRY WIRE RIGHT FRONT PASSENGER DOOR HANDLE KEYLESS ENTRY ANTENNA RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT REAR EXTERIOR DOOR HANDLE ASSEMBLY RIGHT REAR EXTERIOR DOOR HANDLE SWITCH RUN/ SECURITY IND SERIAL STEERING COLUMN LOCK MODULE VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE VOLT 14 VOLT 16 WHT/YEL WIRE YEL/BLU WIRE YEL/GRY WIRE

BATTERY FUSE BLOCK BLK WIRE BLU WIRE BLU/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CREW CAB, EXTENDED DOUBLE CAB DATA COMPUTER LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH GRN/GRY WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH (W/O EXPRESS UP/DOWN) LOGIC LOGIC DRIVER WINDOW MOTOR PASSENGER DOOR LATCH ASSEMBLY PNK WIRE RED/YEL WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH LOGIC VIO WIRE VIO/BLK WIRE VIO/YEL WIRE W/ EXPRESS UP/DOWN W/O EXPRESS UP/DOWN WHT/VIO WIRE WHT/YEL WIRE YEL/BLU WIRE

ACC VOLT ANTENNA BATT POSITIVE VOLT 23 BLK WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DR LCK ACTUATOR LCK CTRL DR LCK ACTUATOR LCK CTRL 2 DR LCK ACTUATOR UNLCK CTRL DR LCK KEY SW UNLCK SIG DRIVER DOOR LOCK SWITCH DRV DR LCK SW LCK SIG LF DR AJAR SW SIG DRV DR LK SW UNLCK SIG ENGINE CONTROL MODULE (6.6L) GND 23 LH HEADLAMP LO BEAM CTRL GRN/YEL WIRE GRY WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HI SPD GMLAN SER DATA (+) 1 HIGH SPEED GMLAN SERIAL DATA (-) (1) HOOD AJAR SWITCH HOOD STATUS A SIG HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM IGN MODE SW CHALLENGE ACTIVE SIG LOGIC MIDDLE PRODUCTION PASS DR LCK SW LCK CTRL PASS DR LCK SW UNLCK CTRL PASSENGER DOOR LOCK SWITCH PASSENGER WINDOW MOTOR PASSENGER WINDOW SWITCH PNK WIRE RED/YEL WIRE REM CTRL DR LK RECEIVER LO REF REM CTRL DR LK RECEIVER TRANSMIT SIG REM CTRL DR LK RECEIVER CTRL REMOTE CONTROL DOOR LOCK RECEIVER RF DR AJAR SW SIG RH HEADLAMP LO BEAM CTRL RUN/CRANK IGN 1 VOLT STRA CLMN LK STATUS SIG REMOTE CTRL DR LK RECEIVER RECEIVE SIG VIO/BLK WIRE VIO/YEL WIRE W/ POWER OPERATED WINDOW W/O EXPRESS UP/DOWN W/ POWER OPERATED WINDOW, EXPRESS UP/DOWN W/O POWER OPERATED WINDOW WHT WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/VIO WIRE

BLK WIRE BLK/GRY WIRE BLU/VIO WIRE CLOSE COMPUTER DATA LINES SYSTEM EXPRESS CLOSE EXPRESS OPEN FRONT OVERHEAD CONSOLE ASSEMBLY GRN/BRN WIRE HOT AT ALL TIMES LOGIC RED/GRN WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SUNROOF MOTOR WHT/GRN WIRE