GMC Sierra III facelift (2015-2018) left instrument panel fuse block Wiring diagrams

BACKUP LP RLY CTRL BATT POS VOLT BATTERY FUSE BLOCK BCK UP LAMP FUSE BCM 5 FUSE BLK WIRE BLU/BRN WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DK BLU WIRE FUSE 2 GMC GRN/RED WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE INSIDE REAR VIEW MIRROR INSTRUMENT PANEL JUNCTION BLOCK J124 (6.0L VIN G, 6.0L VIN B) J123 (6.6L TURBO DIESEL) LEFT BACKUP LAMP LEFT INSTRUMENT PANEL FUSE BLOCK LEFT LOWER TAIL/STOP, TURN SIGNAL LAMP LEFT REAR SIDE MARKER LAMP LEFT TAIL LAMP ASSEMBLY LEFT UPPER TAIL/STOP, TURN SIGNAL LAMP LOGIC LT GRN WIRE LT GRN/WHT WIRE NCA WIRE REAR VIEW CAMERA RED/BRN WIRE RED/GRN WIRE REV LAMP FUSE RIGHT BACKUP LAMP RIGHT LOWER TAIL/STOP, TURN SIGNAL LAMP RIGHT REAR SIDE MARKER LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT UPPER TAIL/STOP, TURN SIGNAL LAMP TRAILER BACKUP LAMPS RELAY UNDERHOOD FUSE BLOCK W/ BODY EQUIPMENT W/O BODY EQUIPMENT W/ LED W/ SPECIAL EQUIPMENT W/O LED WHT WIRE WHT/LT GRN WIRE

BACKUP LAMPS CIRCUIT BASE EQUIPMENT BCM 1 FUSE BCM 3 FUSE BCM 5 FUSE BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY GMLAN GRN/VIO WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK IPC FUSE LEFT BACKUP LAMP LEFT INSTRUMENT PANEL FUSE BLOCK LEFT REAR SIDE MARKER LAMP LEFT TAIL LAMP ASSEMBLY LEFT TAIL/STOP, TURN SIGNAL LAMP LEFT TURN IND LO SPD LOGIC LT GRN WIRE LT GRN/WHT WIRE PARKS LAMPS IND POSITIVE RED WIRE RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT BACKUP LAMP RIGHT REAR SIDE MARKER LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TAIL/STOP, TURN SIGNAL LAMP RIGHT TURN IND SER VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE VOLT W/O DRIVER INFO ENHANCED DISPLAY INSTRUMENT YEL/BLK WIRE YEL/BLU WIRE

ACTUATOR UNLCK CTRL AIR CONDITIONING SYSTEM AMBIENT LIGHT/ SUNLOAD SENSOR BATT POS VOLT BCM 3 FUSE BCM 5 FUSE BLK WIRE BLK/YEL WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CHILD LOCK IND CHILD LOCK OUT IND CHILD LOCK SWITCH CHILD SECURITY LCK RELAY CTRL COMPUTER DATA LINES SYSTEM DATA DK BLU WIRE DR LCK CTRL DR LCK CTRL 2 DRIVER DOOR LATCH ASSEMBLY (REAR OF DRIVER'S DOOR) DRIVER WINDOW MOTOR DRIVER WINDOW SWITCH DRV LOCK SIG DRV UNLOCK SIG GMLAN GMLAN SERIAL DATA - 1 GRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOOD AJAR SW SIG HORN RELAY CTRL HORNS SYSTEM HOT AT ALL TIMES HVAC CONTROL MODULE IND DIMMING CTRL INSTRUMENT PANEL JUNCTION BLOCK KEY SW UNLCK SIG LEFT INSTRUMENT PANEL FUSE BLOCK LF DR AJAR LF DR AJAR SW SIG LH HDLP LOW BEAM CTRL LIN BUS 3 LOCK MOTOR STATUS LOCK OUT IND LOGIC LOW REF LOW SPD LT GRN/YEL WIRE MOTOR STATUS SIG LR MOTOR STATUS SIG RR MTR STATUS PASS LOCK CTRL PASS UNLOCK CTRL PASSENGER DOOR LOCK SWITCH RED/BRN WIRE RED/DK BLU WIRE RED/GRY WIRE RED/VIO WIRE RF DR AJAR SW SIG RFA CTRL RFA RECEIVE SIG RFA RETURN RFA TRANSMIT SIG RH HDLP LOW BEAM CTRL SECURITY IND CTRL SECURITY LCK SW SIG SERIAL SW SIG UNLOCK SIG VIO/YEL WIRE W/ POWER OPERATED WINDOW W/O POWER OPERATED WINDOW WHT WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/VIO WIRE

2500 HD, 3500 HD 1500 ANTENNA BATT POSITIVE VOLT BCM 3 FUSE BLK WIRE BLK/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN/GRN WIRE COMPUTER DATA LINES SYSTEM DATA 1 (+) DK BLU WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE GMLAN SERIAL GMLAN SERIAL DATA - 1 GRN/GRY WIRE GRN/VIO WIRE GRY/BLK WIRE GRY/GRN WIRE HOOD AJAR SW SIG HOT AT ALL TIMES IMMOBILIZER CONTROL MODULE (NEAR IGNITION CYLINDER) IMMOBILIZER RETURN IMMOBILIZER SPLY VOLT INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL FUSE BLOCK LIN BUS 11 LO SPD GMLAN SERIAL DATA LOGIC LOW REF RED/GRY WIRE RETURN SECURITY INDICATOR SPLY VOLT SW SIG WHT WIRE YEL WIRE

ACC VOLT BATT POS SIG BLK WIRE BLU/WHT WIRE BRN/BLU WIRE CLOSE OPEN EXPRESS CLOSE EXPRESS OPEN GRN/WHT WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT W/ RETAINED ACCESSORY POWER RELAY 1 ENERGIZED ILL LEFT INSTRUMENT PANEL FUSE BLOCK LOGIC SUNROOF MOTOR OPEN CLOSE RED/LT GRN WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SEO RAP FUSE SUNROOF FUSE SUNROOF SWITCH SW CLOSE SIG SW CLOSE VENT SIG SW EXPRESS SIG SW OPEN SIG SW OPEN VENT SIG VIO/YEL WIRE YEL WIRE YEL/VIO WIRE

BACK SIG BASE EQUIPMENT BAT POS VOLT BATT POS BLK WIRE BLU WIRE BUS 10 BUS 12 BUS 5 CIRCUIT COMPUTER DATA LINES SYSTEM CTRL DATA DIMMING DISPLAY DISPLAY SIG + DOWN SIG EXCEPT BASE EQUIPMENT FWD SIG GMLAN SERIAL GRN/BLK WIRE GRN/BRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY/GRN WIRE HOT AT ALL TIMES ILL INFO DISPLAY MODULE INSTRUMENT PANEL JUNCTION BLOCK IPC FUSE LEFT INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LT GRN/DK BLU WIRE LT GRN/WHT WIRE LVDS MUTE VOL + NETWORK RADIO CONTROLS RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT STEERING WHEEL CONTROLS SWITCH SEATS SYSTEM SEEK SOURCE DOWN SEEK UP STEERING WHEEL AIR BAG COIL STR WHL CNTRL FUSE UP SIG VIDEO SYSTEM VOICE VOL (-) VOLT W/ FRONT COMPARTMENT FLOOR CUSTOM CONSOLE W/ REAR VIEW CAMERA W/O REAR VIEW CAMERA WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE

AUX AUDIO COMM SIG AUX AUDIO SCREEN (2) AUX DETECTION SIG AUXILIARY AUDIO INPUT BASE EQUIPMENT EXCEPT BASE EQUIPMENT BATT POSITIVE VOLT BK AM/FM ANT SIG BLK WIRE BLK/YEL WIRE BLU WIRE COAX COMPUTER DATA LINES SYSTEM CU XM/HD DISTRIBUTION GMLAN SERIAL DATA GRN WIRE GROUND GRY WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES IPC FUSE LEFT INSTRUMENT PANEL FUSE BLOCK LH AUX AUDIO SIG (2) LOGIC LOW REF LT BLU WIRE LT GRN WIRE LT GRN/DK BLU WIRE MEDIA DISC PLAYER MOST CONTROL MOST SERIAL DATA (+) NCA WIRE NETWORK BUS 10 POSITIVE VOLTAGE RADIO RADIO ANTENNA RDO FUSE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RH AUX AUDIO SIG (2) RIGHT INSTRUMENT PANEL FUSE BLOCK SERIAL DATA STEERING WHEEL AIR BAG COIL STR WHL CNTRL FUSE SYSTEM TELEPHONE VOICE SIG USB USB/OBS DET FUSE VIO WIRE W/ FRONT COMPARTMENT FLOOR CUSTOM CONSOLE W/ REAR SEAT ENTERTAINMENT W/O REAR SEAT ENTERTAINMENT WHT/LT GRN WIRE WHT/VIO WIRE YEL WIRE

AM/FM BK AUX AUDIO COMM SIG AUX AUDIO SCREEN (2) AUX DETECTION SIG AUXILIARY AUDIO INPUT BACKUP LAMP CTRL BATT POS VOLT BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE CAMERA LOW REF CAMERA SIG 2 COAX COMPUTER DATA LINES SYSTEM DISPLAY SIG + GRN WIRE GROUND GROUND DISTRIBUTION GRY WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE INFOTAINMENT INSTRUMENT PANEL JUNCTION BLOCK IPC FUSE LEFT INSTRUMENT PANEL FUSE BLOCK LH AUX AUDIO SIG (2) LOGIC LOW REF LT BLU WIRE LT GRN WIRE LT GRN/WHT WIRE LVDS MOST CONTROL MOST SERIAL DATA (+) NAVIGATION SYSTEM NCA WIRE POWER DISTRIBUTION SYSTEM RADIO RADIO ANTENNA RAP RLY COIL CTRL REAR VIEW CAMERA CIRCUIT RED/GRY WIRE RED/VIO WIRE RH AUX AUDIO SIG (2) SERIAL DATA BUS 5 SYSTEM TELEPHONE VOICE SIG USB VIO WIRE W/ FRONT COMPARTMENT FLOOR CUSTOM CONSOLE WHT/BLU WIRE WHT/LT GRN WIRE WHT/VIO WIRE XM/HD CU YEL WIRE

BLK WIRE GRN/BLU WIRE GROUND DISTRIBUTION SYSTEM HOT AT ALL TIMES LEFT INSTRUMENT PANEL FUSE BLOCK RED/LT GRN WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK ROOF BEACON PROVISION (BLUNT CUT) ROOF BEACON RELAY ROOF BEACON SWITCH SUNROOF FUSE UGDO/ISRVM FUSE WHT/BLK WIRE YEL WIRE

5 VOLT REF 6.2L BASE EQUIPMENT EXCEPT BASE EQUIPMENT BCM 6 FUSE BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DATA BUS 1 DK BLU WIRE DLIS FUSE GMLAN SERIAL GRY/RED WIRE HI SPEED HI SPEED GMLAN SERIAL DATA (-) 1 HOT AT ALL TIMES IGNITION SWITCH INSTRUMENT PANEL JUNCTION BLOCK KEY-IN SWITCH LEFT INSTRUMENT PANEL FUSE BLOCK LOW REF OFF OFF RUN/CRANK VOLT PPL/BLK WIRE RED/BLU WIRE RED/DK BLU WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RUN WIRE SENS LOW REF SERIAL DATA BUS (-) IMS MODE SW RETURN SERIAL DATA BUS- SHIFT INTERLOCK SOL CTRL STOP LAMP SW SIG TRANSMISSION CONTROL MODULE TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION INTERNAL MODE SWITCH AUTOMATIC TRANSMISSION ASSEMBLY TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE YEL/WHT WIRE