GMC Sierra III facelift (2015-2018) lo spd data Wiring diagrams

BATT POS VOLT BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BRN WIRE COMM ENABLE CONTENT THEFT DETERRENT SENSOR MODULE DATA (-) 8 DATA 1 (+) DATA 2 (+) DATA 9 (+) DATA BUS 1 DATA BUS 2 DK BLU WIRE DK BLU/YEL WIRE GRN WIRE GRN/BRN WIRE GRY WIRE GRY/GRN WIRE HI SPD SER HIGH SPEED EXTENSION BUS 1 TERMINATING RESISTOR HIGH SPEED EXTENSION BUS 2 TERMINATING RESISTOR LIN SER LO SPD DATA LO SPD DATA 2 LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/YEL WIRE RED/VIO WIRE SEAT HEATING CONTROL MODULE SIG GND TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VIO/YEL WIRE WHT WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WINDSHIELD FRONT VIEW CAMERA

BATT POS VOLT BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BRN WIRE COMM ENABLE CONTENT THEFT DETERRENT SENSOR MODULE DATA (-) 8 DATA 1 (+) DATA 2 (+) DATA 9 (+) DATA BUS 1 DATA BUS 2 DK BLU WIRE DK BLU/YEL WIRE GRN WIRE GRN/BRN WIRE GRY WIRE GRY/GRN WIRE HI SPD SER HIGH SPEED EXTENSION BUS 1 TERMINATING RESISTOR HIGH SPEED EXTENSION BUS 2 TERMINATING RESISTOR LIN SER LO SPD DATA LO SPD DATA 2 LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/YEL WIRE RED/VIO WIRE SEAT HEATING CONTROL MODULE SIG GND TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VIO/YEL WIRE WHT WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WINDSHIELD FRONT VIEW CAMERA

1 3 (+) BATT POS VOLT BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE COMM ENABLE DATA (-) 8 DATA 1 (+) DATA 2 (+) DATA 9 (+) DK BLU WIRE DK BLU/YEL WIRE GRN WIRE GRN/BRN WIRE GRY WIRE GRY/GRN WIRE HI DATA (+) 9 HI DATA (-) 8 HI SPD SER HIGH SPEED EXTENSION BUS 1 TERMINATING RESISTOR HIGH SPEED EXTENSION BUS 2 TERMINATING RESISTOR LO SPD DATA LO SPD DATA 2 LOW SPD DATA LT GRN WIRE LT GRN/WHT WIRE RED/VIO WIRE SIG GND TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VIO/YEL WIRE W/ LANE ASSIST W/O LANE ASSIST W/O W/ ONSTAR ONSTAR WHT WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WINDSHIELD FRONT VIEW CAMERA

BLU/GRN WIRE BRN WIRE CONTENT THEFT DETERRENT SENSOR MODULE DATA BUS 1 DK BLU WIRE DK BLU/YEL WIRE GMLAN SER DATA (+) 9 COMM ENABLE GMLAN SER DATA (-) 9 GRN WIRE GRN/BRN WIRE GRN/YEL WIRE GRY/GRN WIRE GRY/VIO WIRE HUMAN MACHINE INTERFACE CONTROL BYPASS MODULE HUMAN MACHINE INTERFACE CONTROL MODULE (BEHIND GLOVE BOX) HVAC CONTROL MODULE LIN DATA BUS 10 LO SPD DATA LO SPD DATA 2 LO SPD SER DATA 2 LOC BUS 9 LOC DATA BUS 10 LOC DATA BUS 5 LOC DATA BUS 9 LOC NET SER LOGIC INFO DISPLAY MODULE LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/WHT WIRE LT GRN/YEL WIRE MOST CTRL MOST SER DATA (+) RADIO VIO/YEL WIRE W/ REAR VIEW VISION WHT WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/LT GRN WIRE WHT/VIO WIRE

AUDIO AMPLIFIER (IF EQUIPPED) DK BLU WIRE DK BLU/YEL WIRE GRN WIRE GRN/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE INSTRUMENT CLUSTER LIN BUS 8 LO SPD DATA LO SPD SER DATA 2 LOC DATA BUS 12 LOGIC LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MEDIA DISC PLAYER MOST CTRL MOST SER DATA (+) MOST SER DATA (+) LO SPD SER DATA 2 MOST SER DATA (-) LOC DATA BUS 12 RIGHT STEERING WHEEL CONTROLS SWITCH SEAT MEMORY CONTROL MODULE STEERING WHEEL AIR BAG COIL VIO/YEL WIRE W/ AMPLIFIER W/ ENHANCED MULTI-COLOR GRAPHICS W/O AMPLIFIER W/O REAR SEAT ENTERTAINMENT PKG W/ REAR SEAT ENTERTAINMENT PKG WHT WIRE WHT/DK BLU WIRE WHT/LT GRN WIRE WHT/VIO WIRE YEL WIRE

1 2 BASE UP LEVEL 3 MID LEVEL 1 3 (+) 7 UP LEVEL W/O ONSTAR 8 W/ LANE ASSIST 9 W/O LANE ASSIST BATT POS VOLT BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE COMM ENABLE DATA (-) 8 DATA 1 (+) DATA 2 (+) DATA 9 (+) DK BLU WIRE DK BLU/YEL WIRE EXCEPT UP LEVEL W/ ONSTAR UP LEVEL W/ ONSTAR 6 EXCEPT UP LEVEL W/O ONSTAR GRN WIRE GRN/BRN WIRE GRY WIRE GRY/GRN WIRE HI DATA (+) 8 LO SPD DATA HI DATA (+) 9 HI DATA (-) 8 HI SPD SER HIGH SPEED EXTENSION BUS 1 TERMINATING RESISTOR HIGH SPEED EXTENSION BUS 2 TERMINATING RESISTOR LO SPD DATA LO SPD DATA 2 LT GRN WIRE LT GRN/WHT WIRE RED/VIO WIRE SIG GND TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VIO/YEL WIRE W/ LANE ASSIST W/O LANE ASSIST W/O W/ ONSTAR ONSTAR WHT WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WINDSHIELD FRONT VIEW CAMERA

BLU/GRN WIRE BRN WIRE CONTENT THEFT DETERRENT SENSOR MODULE DATA BUS 1 DK BLU WIRE DK BLU/YEL WIRE GMLAN SER DATA (+) 9 COMM ENABLE GMLAN SER DATA (-) 9 GRN WIRE GRN/BRN WIRE GRN/YEL WIRE GRY/GRN WIRE GRY/VIO WIRE HUMAN MACHINE INTERFACE CONTROL BYPASS MODULE HUMAN MACHINE INTERFACE CONTROL MODULE (BEHIND GLOVE BOX) HVAC CONTROL MODULE LIN BUS 10 LIN BUS 5 LIN BUS 9 LIN DATA BUS 10 LIN DATA BUS 5 LIN SER LO SPD DATA LO SPD DATA 2 LO SPD SER DATA 2 LOGIC INFO DISPLAY MODULE LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/WHT WIRE LT GRN/YEL WIRE MOST CTRL MOST SER DATA (+) RADIO VIO/YEL WIRE W/ REAR VIEW VISION WHT WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/LT GRN WIRE WHT/VIO WIRE

AUDIO AMPLIFIER (IF EQUIPPED) DK BLU WIRE DK BLU/YEL WIRE GRN WIRE GRN/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE INSTRUMENT CLUSTER LIN BUS 8 LO SPD DATA LO SPD SER DATA 2 LOC DATA BUS 12 LOGIC LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MEDIA DISC PLAYER MOST CTRL MOST SER DATA (+) MOST SER DATA (+) LO SPD SER DATA 2 MOST SER DATA (-) LOC DATA BUS 12 RIGHT STEERING WHEEL CONTROLS SWITCH SEAT MEMORY CONTROL MODULE STEERING WHEEL AIR BAG COIL VIO/YEL WIRE W/ AMPLIFIER W/ ENHANCED MULTI-COLOR GRAPHICS W/ MULTI COLOR DISPLAY W/O AMPLIFIER W/O MULTI COLOR DISPLAY WHT WIRE WHT/DK BLU WIRE WHT/LT GRN WIRE WHT/VIO WIRE YEL WIRE

ASSIST STEP CONTROL MODULE BASE EQUIPMENT EXCEPT BASE EQUIPMENT BLU/YEL WIRE DK BLU WIRE DK BLU/YEL WIRE GRN WIRE HI SPD SER DATA (-) 1 HI SPD SER DATA (-) 1 ACC WAKEUP DATA HI SPD SER DATA (-) 2 INSTRUMENT PANEL JUNCTION BLOCK LO SPD DATA LO SPD SER DATA LT GRN WIRE PARKING ASSIST CONTROL MODULE PASSENGER PRESENCE MODULE (IF EQUIPPED) STEERING WHEEL ANGLE SENSOR TRANSFER CASE CONTROL MODULE VIO/YEL WIRE W/ POWER RETRACTABLE RUNNING BOARD STEPS WHT WIRE WHT/DK BLU WIRE