GMC Sierra IV (2018-2022) left instrument panel fuse block Wiring diagrams

BATT POS VOLT BLK WIRE BLK/GRN WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENDGATE REL SW ANALOG SIG INTERIOR ENDGATE REL SW DISCRETE SIG EXTERIOR EXTERIOR PICKUP BOX ENDGATE CONTROL SWITCH GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLK WIRE GRY/VIO WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL FUSE BLOCK LEFT PICKUP BOX ENDGATE LATCH LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 12 LOGIC LOW SPEED GMLAN SERIAL DATA ORG/WHT WIRE PICKUP BOX ENDGATE CONTROL MODULE (IN UPPER LEFT SIDE OF ENDGATE) PICKUP BOX ENDGATE POWER ASSIST ACTUATOR (LOWER RIGHT CORNER OF ENDGATE) PNK WIRE PNK/BLK WIRE REAR CLOSURE CINCH LATCH MTR 2 CINCH CTRL REAR CLOSURE CINCH LATCH MTR 2 REL CTRL REAR CLOSURE CINCH LATCH MTR CLOSE CTRL REAR CLOSURE CINCH LATCH MTR OPEN CTRL REAR CLOSURE CLUTCH CTRL REAR CLOSURE CLUTCH RETURN REAR CLOSURE LATCH 2 PAWL STATUS REAR CLOSURE LATCH 2 RACHET STATUS REAR CLOSURE LATCH 2 SECTOR STATUS REAR CLOSURE LATCH 2 UNLATCH STATUS REAR CLOSURE LATCH PAWL STATUS SIG REAR CLOSURE LATCH RATCHET STATUS REAR CLOSURE LATCH UNLATCH STATUS REAR CLOSURE OBJECT SENS LOW REF REAR CLOSURE OPEN SWITCH SIG REAR CLOSURE OPEN/CLOSE MTR CLOSE CTRL REAR CLOSURE OPEN/CLOSE MTR OPEN CTRL REAR CLOSURE POSITION SENS LOW REF REAR CLOSURE POSITION SENS SIG 1 REAR CLOSURE POSITION SENS SIG 2 REAR CLOSURE POSITION SENS VOLTAGE REF REAR CLOSURE SENS LOW REF 2 RED/GRY WIRE RIGHT PICKUP BOX ENDGATE LATCH VEHICLE STABILITY CONTROL SWITCH VIO WIRE WHT WIRE YEL WIRE YEL/RED WIRE

BATT POS VOLT BLK WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN/BLK WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY EXTERIOR PICKUP BOX ENDGATE CONTROL SWITCH GRN WIRE GRN/BLK WIRE GROUND GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL FUSE BLOCK LEFT PICKUP BOX AUXILIARY ENDGATE LATCH LEFT PICKUP BOX AUXILIARY ENDGATE LATCH RELAY LH MINOR ENDGATE AJAR SIG LO SPD GM LAN SERIAL DATA LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 12 LOGIC MINOR ENDGATE HI RLY CTRL MINOR ENDGATE LOW RLY CTRL MINOR ENDGATE REL SWITCH DISCRETE SIGNAL EXTERIOR RED/BLU WIRE RH MINOR ENDGATE AJAR SIG RIGHT END OF DASH) RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT PICKUP BOX AUXILIARY ENDGATE LATCH RIGHT PICKUP BOX AUXILIARY ENDGATE LATCH RELAY VIO WIRE WHT/BRN WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE

ACC VOLT ANT 1 HI SIG ANT 1 LO SIG ANT 2 HI SIG ANT 2 LO SIG ANT HI SIG ANT LO SIG BATT POSITIVE VOLT 43 BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRV DR ANT HI SIG DRV DR ANT LO SIG DRV DR HANDLE SW SIG DRV DR OPEN SW SIG IGN MODE SW CHALLENGE ACTV SIG IGN MODE SW SIG 2 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/GRN WIRE HOT AT ALL TIMES IGNITION MODE SWITCH INSTRUMENT PANEL COMPARTMENT KEYLESS ENTRY ANTENNA KEYLESS ENTRY CONTROL MODULE LEFT INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN SERIAL DATA LR DR HANDLE SW SIG PASS DR ANT HI SIG PASS DR ANT LO SIG PASS DR HANDLE SW SIG PASSIVE START SW 2 LO REF PNK WIRE POWER DISTRIBUTION SYSTEM REAR COMPARTMENT KEYLESS ENTRY ANTENNA RED/YEL WIRE RETAINED ACC PWR RELAY 2 COIL CTRL RR DR HANDLE SW SIG RUN/CRANK IGN 1 VOLT STEERING COLUMN LCK SIG VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/GRY WIRE

8 WAY BATT POS VOLT 51 BATT POS VOLT 61 BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BODY CTRL MODULE LIN BUS 2 BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE CO-DRV HEATED BACK THERMISTOR LO REF CO-DRV HEATED SEAT THERMISTOR LO REF COMPUTER DATA LINES SYSTEM DRIVER CUSHION HEATED SEAT SWITCH DRIVER VENTILATED HEATED SEAT SWITCH DRV HEATED BACK THERMISTOR LO REF DRV HEATED SEAT THERMISTOR LO REF DRV SEAT BACK HEATING ELEMENT CTRL DRV SEAT BACK HEATING TEMPERATURE SENS SIG DRV SEAT BLOWER MOTOR CTRL 1 DRV SEAT HEATING ELEMENT CTRL DRV SEAT HEATING ELEMENT LO REF DRV SEAT HEATING TEMPERATURE SENS SIG EXCEPT 8 WAY FRONT SEAT HEATING CONTROL MODULE (UNDER FRONT OF PASSENGER SEAT) GND 12 GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRY/BLK WIRE HIGH HEAT IND HOT AT ALL TIMES HVAC CONTROLS LEFT CUSHION/BACK HEATED SEAT SWITCH LEFT INSTRUMENT PANEL FUSE BLOCK LOGIC LOW HEAT IND MED HEAT IND PASS SEAT BACK HEATING ELEMENT CTRL PASS SEAT BACK HEATING TEMPERATURE SENS SIG PASS SEAT BLOWER MOTOR CTRL 1 PASS SEAT HEATING ELEMENT CTRL PASS SEAT HEATING ELEMENT LO REF PASS SEAT HEATING TEMPERATURE SENS SIG PASSENGER CUSHION HEATED SEAT SWITCH PASSENGER VENTILATED HEATED SEAT SWITCH RED WIRE RED/GRN WIRE RIGHT CUSHION/BACK HEATED SEAT SWITCH WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE YEL/GRY 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

BATT POS VOLT BLK WIRE BLU WIRE BRN WIRE FRONT VERTICAL DOWN FRONT VERTICAL UP FWD UP GRN WIRE HORIZONTAL RWD HOT AT ALL TIMES LEFT INSTRUMENT PANEL FUSE BLOCK PASSENGER SEAT ADJUSTER SWITCH PASSENGER SEAT FRONT VERTICAL MOTOR PASSENGER SEAT HORIZONTAL MOTOR PASSENGER SEAT REAR VERTICAL MOTOR PASSENGER SEAT RECLINE MOTOR REAR VERTICAL DOWN REAR VERTICAL UP HORIZONTAL FWD RECLINE FWD RECLINE RWD RED/BRN WIRE RWD VIO WIRE WHT WIRE YEL WIRE

ACC VOLT ANT 1 HI SIG ANT 1 LO SIG ANT 2 HI SIG ANT 2 LO SIG ANT HI SIG ANT LO SIG BATT POSITIVE VOLT 43 BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRV DR ANT HI SIG DRV DR ANT LO SIG DRV DR HANDLE SW SIG DRV DR OPEN SW SIG IGN MODE SW CHALLENGE ACTV SIG IGN MODE SW SIG 2 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/GRN WIRE HOT AT ALL TIMES IGNITION MODE SWITCH INSTRUMENT PANEL COMPARTMENT KEYLESS ENTRY ANTENNA KEYLESS ENTRY CONTROL MODULE LEFT INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN SERIAL DATA LR DR HANDLE SW SIG PASS DR ANT HI SIG PASS DR ANT LO SIG PASS DR HANDLE SW SIG PASSIVE START SW 2 LO REF PNK WIRE POWER DISTRIBUTION SYSTEM REAR COMPARTMENT KEYLESS ENTRY ANTENNA RED/YEL WIRE RETAINED ACC PWR RELAY 2 COIL CTRL RR DR HANDLE SW SIG RUN/CRANK IGN 1 VOLT STEERING COLUMN LCK SIG VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/GRY WIRE

AUDIO AMPLIFIER (ON REAR WALL OF PASSENGER COMPT) 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 COAX COMPUTER DATA LINES SYSTEM ETHERNET BUS 6 (-) GND 27 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 CTRL (+) LF SPKR LF SPKR 1 (-) LR SPKR NCA WIRE RED/YEL WIRE RF SPKR RF SPKR (-) 1 LEFT/REAR SUBWOOFER SPKR (-) LOW REF RF SPKR 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 WLAN WIRELESS COMMUNICATION ANTENNA YEL WIRE YEL/BLK WIRE

BATT POS VOLT 2 BATT POS VOLT 3 BLK WIRE BLU/WHT WIRE BODY CTRL MODULE LIN BUS 2 BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DISPLAY GND 11 GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL FUSE BLOCK LEFT REAR CUSHION SEAT HEATING ELEMENT LOGIC LR CUSHION TEMP SENS SIG LR CUSHION THERMISTOR FEEDBACK SIG NCA WIRE REAR SEAT HEATING CONTROL MODULE REAR SEAT HEATING SWITCH RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT REAR CUSHION SEAT HEATING ELEMENT RR CUSHION TEMP SENS SIG RR CUSHION THERMISTOR FEEDBACK SIG RR HTD SEAT CUSHION HEATING ELEMENT CTRL RR HTD SEAT CUSHION HEATING ELEMENT LO REF WHT/BLK WIRE WHT/BLU WIRE YEL/WHT WIRE

BLK WIRE FRONT OVERHEAD CONSOLE ASSEMBLY GRY/GRN WIRE HOT AT ALL TIMES HOT W/ RETAINED ACCESSORY POWER RELAY 1 ENERGIZED LEFT INSTRUMENT PANEL FUSE BLOCK RED/VIO WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SLIDING REAR WINDOW CLOSE RELAY SLIDING REAR WINDOW MOTOR (RIGHT REAR OF PASSENGER COMPT) SLIDING REAR WINDOW OPEN RELAY SLIDING REAR WINDOW SWITCH VIO/YEL WIRE WHT WIRE YEL/BLU WIRE YEL/VIO WIRE