Buick LaCrosse III (2016-2019) infotainment control touchpad Wiring diagrams

BLU/GRN WIRE BLU/GRY WIRE DATA DATA BUS 10 DATA BUS 12 DATA BUS 2 DATA BUS 5 DK BLU WIRE DK BLU/VIO WIRE DK BLU/YEL WIRE DK GRN/BLK WIRE DK GRN/DK BLU WIRE DK GRN/WHT WIRE DK GRN/YEL WIRE GRY/LT GRN WIRE GRY/VIO WIRE HEAD-UP DISPLAY HI SPD GMLAN SERIAL DATA (+) 9 INFO DISPLAY MODULE INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT CLUSTER LOGIC LIN SERIAL LO SPD GMLAN LOGIC LOW SPD GMLAN LOW SPD GMLAN SERIAL DATA 2 LT GRN WIRE MEDIA DISC PLAYER MOST CONTROL MOST SERIAL RADIO RIGHT STEERING WHEEL CONTROLS SWITCH LOGIC SERIAL DATA 2 SERIAL DATA COMM ENABLE STEERING WHEEL AIR BAG COIL TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VIO/YEL WIRE W/ INFOTAINMENT CONTROL TOUCHPAD W/ INFOTAINMENT CONTROL TOUCHPAD W/ ONSTAR W/O ONSTAR WHT WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE

ACCESSORY DC/AC POWER INVERTER MODULE AMBIENT LIGHT/ SUNLOAD SENSOR AUDIO/ VIDEO INPUT ADAPTER AUXILIARY AUDIO INPUT BLK WIRE BLOWER MOTOR BODY CONTROL MODULE CENTER CONSOLE 2 ACCESSORY POWER RECEPTACLE CENTER CONSOLE ACCESSORY POWER RECEPTACLE 1 CENTER CONSOLE COMPARTMENT ACCESSORY POWER RECEPTACLE CIGARETTE LIGHTER RECEPTACLE COLLISION ALERT INDICATORS DATA LINK CONNECTOR HEADLAMP SWITCH HEADUP DISPLAY HEADUP DISPLAY SWITCH HUMAN MACHINE INTERFACE CONTROL MODULE HVAC CONTROL MODULE HVAC CONTROLS IGNITION MODE SWITCH INFO DISPLAY MODULE INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT CLUSTER MEDIA DISC PLAYER NCA WIRE RADIO SERIAL DATA GATEWAY MODULE STOP/START SELECT SWITCH TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TURN SIGNAL/ MULTI-FUNCTION SWITCH USB RECEPTACLE W/ EMBEDDED NAVIGATION W/O EMBEDDED NAVIGATION W/ TOUCH PAD, ENTERTAINMENT W/ TOUCH PAD W/O TOUCH PAD W/O ONSTAR

BACKLIGHT DIMMING CTRL BATT POS VOLT DOME LAMP OFF INDICATOR CTRL BLK WIRE BLK/DK BLU WIRE BLK/YEL WIRE BLU/GRY WIRE BODY CONTROL MODULE CIGARETTE LIGHTER RECEPTACLE COMPUTER DATA LINES SYSTEM DIMMER SW LOW REF DIMMER SW SIG DIMMING CTRL DK BLU/RED WIRE DK GRN/GRY WIRE DRIVER DOOR LOCK SWITCH DRIVER SEAT MEMORY SWITCH FUSE 22 GND LOCAL INTERCONNECT NETWORK DATA BUS 4 GRY WIRE HEAD-UP DISPLAY SWITCH HOT AT ALL TIMES IGNITION MODE SWITCH INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT PANEL FUSE BLOCK INTERIOR REAR COMPARTMENT LID UNLATCH SWITCH LED BACKLIGHT DIMMING CTRL LED DIMMING SIG LOGIC LOW REF PARK BRAKE CONTROL SWITCH PASSENGER DOOR LOCK SWITCH PASSENGER WINDOW SWITCH RED/WHT WIRE SEAT MEMORY CONTROL MODULE STOP/ START SELECT SWITCH W/ EXPRESS UP/DOWN POWER OPERATED WINDOW W/ MEMORY W/ MEMORY W/O MEMORY W/O MEMORY W/ MEMORY WHT WIRE YEL WIRE YEL/GRY WIRE

BATT POS VOLT BATT POST VOLT BLK WIRE BRN/DK BLU WIRE COMPUTER DATA LINES SYSTEM DIMMING CONTROL DK BLU WIRE DK BLU/BLK WIRE DK GRN WIRE DK GRN/BLK WIRE FUSE 39 FUSE 42 GMLAN SERIAL DATA 2 GROUND GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT PANEL FUSE BLOCK LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR DOOR SPEAKER LF SPEAKER (+) (1) LF SPEAKER SIG (-) 1 LR SPEAKER (+) CTRL LR SPEAKER SIG (-) MOST CONTROL MOST SERIAL DATA (+) RADIO RED/BLU WIRE RED/LT BLU WIRE RED/VIO WIRE RF SPEAKER (+) (1) RF SPEAKER SIG (-) 1 RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER RR SPEAKER (+) CTRL RR SPEAKER SIG (-) SIG GND WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE

BATT POS VOLT BLK WIRE COMPUTER DATA LINES SYSTEM DIMMING CONTROL DK BLU/BLK WIRE FUSE 39 FUSE 42 GMLAN SERIAL DATA 2 GRN/VIO WIRE GROUND GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES ILL INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT PANEL FUSE BLOCK MOST CONTROL MOST SERIAL DATA (+) RED/BLU WIRE RED/LT BLU WIRE RED/VIO WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR WINDOW SHELF SPEAKER WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE

BATT POS VOLT BLK WIRE COMPUTER DATA LINES SYSTEM DIMMING CONTROL DK BLU/BLK WIRE FUSE 39 FUSE 42 GMLAN SERIAL DATA 2 GRN/VIO WIRE GROUND GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT PANEL FUSE BLOCK LEFT REAR TRIM PANEL SPEAKER MOST CONTROL MOST SERIAL DATA (+) RED/BLU WIRE RED/LT BLU WIRE RED/VIO WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR TRIM PANEL SPEAKER RIGHT SUBWOOFER SPEAKER WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE

ACTIVE SAFETY CONTROL MODULE AUDIO/ VIDEO INPUT ADAPTER AUXILIARY AUDIO INPUT AUXILIARY HVAC CONTROL MODULE BASE RADIO BLU WIRE CHASSIS CONTROL MODULE DK BLU WIRE DK GRN WIRE DRIVER SEATBACK VIDEO DISPLAY FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 8) FRONT VIEW CAMERA (IF EQUIPPED) FUSE 35 FUSE 38 FUSE 39 FUSE 40 FUSE 42 GRY WIRE HEAD-UP DISPLAY HUMAN MACHINE INTERFACE CONTROL MODULE HVAC CONTROLS INFO DISPLAY MODULE INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT CLUSTER LEFT SIDE OBJECT SENSOR MODULE LONG RANGE RADAR SENSOR MODULE LT BLU WIRE MEDIA DISC PLAYER PARKING ASSIST CONTROL MODULE PASSENGER SEATBACK VIDEO DISPLAY PREMIUM RADIO RADIO RED WIRE RED/BLU WIRE RED/DK BLU WIRE RED/GRY WIRE RED/LT BLU WIRE RED/VIO WIRE RED/YEL WIRE RIGHT SIDE OBJECT SENSOR MODULE TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TO FUSE 23 (DIAGRAM 6 OF 8) TO FUSE 41 (DIAGRAM 6 OF 8) W/ ONSTAR

BATT POS VOLT BATT POST VOLT BLK WIRE BRN/DK BLU WIRE COMPUTER DATA LINES SYSTEM DIMMING CONTROL DK BLU WIRE DK BLU/BLK WIRE DK GRN WIRE DK GRN/BLK WIRE FUSE 39 FUSE 42 GROUND GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT PANEL FUSE BLOCK LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR DOOR SPEAKER LF SPEAKER (+) (1) LF SPEAKER SIG (-) 1 LR SPEAKER (+) CTRL LR SPEAKER SIG (-) MOST CONTROL MOST SERIAL DATA (+) MOST SERIAL DATA (-) GMLAN SERIAL DATA 2 RADIO RED/BLU WIRE RED/LT BLU WIRE RED/VIO WIRE RF SPEAKER (+) (1) RF SPEAKER SIG (-) 1 RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER RR SPEAKER (+) CTRL RR SPEAKER SIG (-) SIG GND WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE

BATT POS VOLT BLK WIRE COMPUTER DATA LINES SYSTEM DIMMING CONTROL DK BLU/BLK WIRE FUSE 39 FUSE 42 GRN/VIO WIRE GROUND GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES ILL INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT PANEL FUSE BLOCK MOST CONTROL MOST SERIAL DATA (+) MOST SERIAL DATA (-) GMLAN SERIAL DATA 2 RED/BLU WIRE RED/LT BLU WIRE RED/VIO WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR WINDOW SHELF SPEAKER WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE

BATT POS VOLT BLK WIRE COMPUTER DATA LINES SYSTEM DIMMING CONTROL DK BLU/BLK WIRE FUSE 39 FUSE 42 GRN/VIO WIRE GROUND GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT PANEL FUSE BLOCK LEFT REAR TRIM PANEL SPEAKER MOST CONTROL MOST SERIAL DATA (+) MOST SERIAL DATA (-) GMLAN SERIAL DATA 2 RED/BLU WIRE RED/LT BLU WIRE RED/VIO WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR TRIM PANEL SPEAKER RIGHT SUBWOOFER SPEAKER WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE