GMC Sierra III facelift (2015-2018) instrument panel multi- function switch Wiring diagrams

12 VOLT REF ALERT LED CTRL DIMMING CTRL ALERT LED CTRL LOW SPD GMLAN SERIAL DATA 2 BATT POS VOLT BCM 7 FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE COLLISION ALERT INDICATORS COMPUTER DATA LINES SYSTEM DK BLU WIRE DRIVER INFORMATION CENTER DISPLAY GAP UP/DOWN SWITCH GND HI SPD GMLAN SERIAL DATA (+) 1 GRN WIRE GROUND GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT IND DIMMING CTRL INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH IPC IGN/SDM IGN FUSE LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LEFT INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LO SPD GMLAN SERIAL DATA LOGIC POWER DISTRIBUTION SYSTEM RED/GRN WIRE REFLECTED LED DISPLAY DIMMING CTRL RIGHT INSTRUMENT PANEL FUSE BLOCK STEERING WHEEL AIR BAG COIL SW SIG UP/DOWN SW SIG USB/OBS DET FUSE VIO/BLK WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE WINDSHIELD FRONT VIEW CAMERA

BATT POS VOLT BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DK BLU WIRE GRN WIRE GRY/WHT WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPT WARN DISABLE SW SIG LANE DEPT WARN IND CTRL LO SPD GMLAN SER DATA RED/GRN WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK USB/OBS DET FUSE WHT WIRE WINDSHIELD FRONT VIEW CAMERA

BATT POS VOLT BLK WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GRN/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LED DISABLE SIG LEFT MIDDLE FRONT PARKING ASSIST SENSOR LEFT MIDDLE REAR PARKING ASSIST SENSOR LEFT OUTER FRONT PARKING ASSIST SENSOR LEFT OUTER REAR PARKING ASSIST SENSOR LEFT/RIGHT/MID SENS LF CORNER PARKING CORNER SENS LF MIDDLE SENS SIG LO SPEED GMLAN SERIAL DATA CENTER DISPLAY 2 LOGIC LOW SPD GMLAN SERIAL DATA LR CORNER SENS SIG LR MIDDLE SENS SIG LT GRN WIRE PARKING ASSIST CONTROL MODULE PARKING ASSIST DISABLE IND PARKING ASSIST DISABLE SWITCH RED/GRN WIRE RF CORNER SENS SIG RF MIDDLE SENS SIG RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT MIDDLE FRONT PARKING ASSIST SENSOR RIGHT MIDDLE REAR PARKING ASSIST SENSOR RIGHT OUTER FRONT PARKING ASSIST SENSOR RIGHT OUTER REAR PARKING ASSIST SENSOR RR CORNER SENS SIG RR MIDDLE SENS SIG SENS LOW REF SENS OBJECT CTRL SIG GND REAR PARK ASSIST DISABLE SIG USB/OBS DET FUSE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/GRY WIRE YEL WIRE YEL/DK BLU WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

ACCY/RUN CRNK FUSE BATT POSITIVE VOLT BLK WIRE BLK/WHT WIRE BLU/BRN WIRE BLU/GRY WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE ENABLE SIG ENG SHUTDOWN SIG ENGINE CONTROL MODULE GRN/WHT WIRE HI SPD SER DATA (-) 1 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL MULTI- FUNCTION SWITCH LEFT INSTRUMENT PANEL FUSE BLOCK MISC IGN FUSE POWER DISTRIBUTION SYSTEM POWER TAKE OFF SWITCH DIODE POWER TAKE-OFF CONTROL MODULE PWR TAKE OFF CTRL SW RED/BLU WIRE RED/VIO WIRE REMOTE ENG ST SW SIG REMOTE SW SET SIG 1 RIGHT INSTRUMENT PANEL FUSE BLOCK RLY COIL CTRL RLY ENGAGE SIG SER DATA ENABLE SIG GND STATUS SIG SW NORMALLY CLOSED SIG UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/LT GRN WIRE VIO/WHT WIRE WHT WIRE WHT/DK BLU WIRE WHT/GRN WIRE YEL WIRE

ALTERNATIVE FUEL ENABLE RLY ALTERNATIVE FUEL INJ 1 CTRL ALTERNATIVE FUEL INJ 2 CTRL ALTERNATIVE FUEL INJ 3 CTRL ALTERNATIVE FUEL INJ 4 CTRL ALTERNATIVE FUEL INJ 5 CTRL ALTERNATIVE FUEL INJ 6 CTRL ALTERNATIVE FUEL INJ 7 CTRL ALTERNATIVE FUEL INJ 8 CTRL ALTERNATIVE FUEL INJ GROUND ALTERNATIVE FUEL INJECTOR 1 ALTERNATIVE FUEL INJECTOR 2 ALTERNATIVE FUEL INJECTOR 3 ALTERNATIVE FUEL INJECTOR 4 ALTERNATIVE FUEL INJECTOR 5 ALTERNATIVE FUEL INJECTOR 6 ALTERNATIVE FUEL INJECTOR 7 ALTERNATIVE FUEL INJECTOR 8 BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE CNG CONTROL MODULE CNG INJ GROUND CNG TANK CUT-OFF 2 CTRL CNG TANK LOC 1 OFF CTRL CNG TANK PRESS INPUT CNG TANK TEMP INPUT COMPUTER DATA COOLANT TEMP INPUT DATA BUS - FUEL PRESSURE INPUT FUEL SELECT IND FUEL SELECT INDICATOR FUEL SELECT SW FUEL SELECT SWITCH FUEL TEMP SENS INPUT GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GROUND INSTRUMENT PANEL MULTI- FUNCTION SWITCH LINES SYSTEM LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE OEM INJ 1 INPUT OEM INJ 1 OUTPUT OEM INJ 2 INPUT OEM INJ 2 OUTPUT OEM INJ 3 INPUT OEM INJ 3 OUTPUT OEM INJ 4 INPUT OEM INJ 5 OUTPUT OEM INJ 6 OUTPUT OEM INJ 7 OUTPUT OEM INJ 8 OUTPUT OEM INJ INPUT 5 OEM INJ INPUT 6 OEM INJ INPUT 7 OEM INJ INPUT 8 OEM INJ POS VOLT BANK 1 OEM INJ POS VOLT BANK 2 ORG/BLK WIRE ORG/GRN WIRE PNK WIRE PNK/BLK WIRE PNK/GRN WIRE PNK/WHT WIRE PWR RED WIRE RED/WHT WIRE SERIAL K SOLENOID CTRL SW BATT POS TAN WIRE TAN/BLK WIRE TAN/BLU WIRE TAN/GRN WIRE TAN/WHT WIRE VIO/DK BLU WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/ORG WIRE WHT/PPL WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE