GMC Sierra III facelift (2015-2018) Instrument illumination circuit

5 VOLT REF AUTO BATT POS VOLT BCM 1 FUSE BCM 5 FUSE BCM 6 FUSE BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU/RED WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRK SW SIG BRN WIRE BRN/WHT WIRE CHASSIS CONTROL MODULE CHILD LOCKOUT IND COMPUTER DATA LINES SYSTEM DIMMER SW SIG DK BLU WIRE DOME LAMP SWITCH GARAGE DOOR OPENER GMLAN SERIAL DATA GRN/GRY WIRE GRN/WHT WIRE GRY WIRE HEAD HEADLAMP SWITCH HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT PANEL JUNCTION BLOCK LED BACK LIGHT DIMMING CTRL LEFT FRONT OVERHEAD CONSOLE DOME/ READING LAMPS LEFT INSTRUMENT PANEL FUSE BLOCK LEFT REAR WINDOW SWITCH LMP RLY CTRL LOGIC LOW REF LT GRN/GRY WIRE LT GRN/YEL WIRE OFF PARK PARK LAMP SIG PASSENGER WINDOW SWITCH RED/BRN WIRE RED/WHT WIRE RIGHT FRONT OVERHEAD CONSOLE DOME/ READING LAMPS RIGHT INSTRUMENT PANEL FUSE BLOCK ROOF BEACON SWITCH SLIDING REAR WINDOW SWITCH SUNROOF SWITCH TRAILER BRAKE CONTROL SWITCH WHT WIRE YEL WIRE YEL/GRY WIRE

BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU/GRN WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA 9 (+) DRIVER DOOR LOCK SWITCH DRIVER SEAT MEMORY SWITCH DRIVER WINDOW SWITCH GMLAN SERIAL GREEN LED GRN/BRN WIRE GRN/WHT WIRE GRY WIRE HEATED STEERING WHEEL CONTROL MODULE HOT W/ IGNITION MAIN RELAY ENERGIZED INSIDE REAR VIEW MIRROR INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK IPC IGN/SDM IGN FUSE KEYPAD KEYPAD RED WIRE LED LED DISABLE SIG LEFT INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LO REF LOGIC LT GRN/YEL WIRE OUTSIDE REAR VIEW MIRROR SWITCH PARKING ASSIST CONTROL MODULE PASSENGER AIR BAG DISABLED INDICATOR PASSENGER DOOR LOCK SWITCH RIGHT STEERING WHEEL CONTROLS SWITCH SEAT MEMORY CONTROL MODULE SERIAL DATA STEERING WHEEL AIR BAG COIL SWC BKLT FUSE TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VIO/WHT WIRE W/ ACCESSORY STEERING WHEEL CONTROL WHT WIRE WHT/GRN WIRE WHT/LT GRN WIRE YEL WIRE YEL/BRN WIRE YEL/VIO WIRE

2 HI 4 HI 4 LO ASSIST IND AUTO AUX 1 AUX 2- AUX 3 AUX 4 BASE EQUIPMENT EXCEPT BASE EQUIPMENT BLK WIRE BRAKE IND BRN/BLK WIRE BRN/WHT WIRE COLLISION ALERT IND COMPUTER DATA COMPUTER DATA LINES SYSTEM DRIVER SEAT HEATING, COOLING SWITCH GRN/BLK WIRE GRN/BRN WIRE GRN/WHT WIRE GROUND DISTRIBUTION SYSTEM GRY/GRN WIRE INFO DISPLAY MODULE INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEPARTURE LDW/FCA IND CTRL LINES SYSTEM LOGIC LT GRN WIRE LT GRN/GRY WIRE LT GRN/WHT WIRE PARKING PASSENGER SEAT HEATING, COOLING SWITCH RIGHT REAR WINDOW SWITCH TRAILER IND TRANSFER CASE CONTROL MODULE TRANSFER CASE SHIFT CONTROL SWITCH VIO/WHT WIRE WARNING/FORWARD WHT WIRE WINDSHIELD FRONT VIEW CAMERA YEL WIRE