Buick LaCrosse III (2016-2019) (lower left end of dash) Wiring diagrams

AUDIO LOW REF AUDIO SIG + BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLUNT CUT) CAMERA SIG 2 CELL/CELL 1 CELLULAR PHONE MICROPHONE COAX COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN/WHT WIRE FUSE 38 GMLAN SERIAL DATA (+) 9 GPS GPS/CELL 2 GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE (RIGHT SIDE OF DASH) INFOTAINMENT DISPLAY SIG INSTRUMENT PANEL FUSE BLOCK LOW REF LT BLU WIRE LVDS MICROPHONE SIG MOST CONTROL MOST SERIAL DATA (+) NAVIGATION SYSTEM NCA WIRE REAR VIEW CAMERA CIRCUIT RECOGNITION AUDIO SIG RED WIRE RED/LT BLU WIRE RED/VIO WIRE RED/YEL WIRE SERIAL DATA (-) 9 SERIAL DATA BUS 5 SHIELD USB USB SERIAL DATA VOICE LOW REF VOICE SIG W/ ONSTAR W/O ONSTAR W/ NAVIGATION W/O NAVIGATION WHT/BLU WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL 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

1-VT 2-VT BLK WIRE BLK/YEL WIRE BRN WIRE CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA COAX COMPUTER DATA LINES SYSTEM DK GRN/BLK WIRE FUSE 31 GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LOGIC MENU MUTE NEXT RED WIRE RED/VIO WIRE RED/WHT WIRE RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SELECT STEERING WHEEL AIR BAG COIL TALK USB VOL (-) WHT WIRE YEL WIRE

BATT POS VOLT BLK WIRE BLU/GRY WIRE BRN/DK BLU WIRE CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM DISPLAY DISPLAY SIG + DK BLU WIRE DK BLU/YEL WIRE DK GRN WIRE DK GRN/BLK WIRE DK GRN/DK BLU WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE FUSE 16 FUSE 38 GRN/BLK WIRE GRY/GRN WIRE HOT AT ALL TIMES INFO DISPLAY MODULE INFOTAINMENT INSTRUMENT PANEL FUSE BLOCK LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR DOOR SPEAKER LEFT SUBWOOFER SPEAKER LOGIC LOW SPEED GMLAN LVDS MEDIA DISC PLAYER RADIO CONTROLS RED/BRN WIRE RED/LT BLU WIRE RED/VIO WIRE RED/YEL WIRE REPLICATED SERIAL DATA 2 SERIAL DATA BUS 10 SERIAL DATA BUS 5 SIG VIO/DK BLU WIRE YEL/WHT WIRE

BATTERY POS VOLT BLK WIRE BLK/DK BLU WIRE BLK/GRY WIRE BODY CONTROL MODULE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CTRL DATA 1 (+) DK BLU WIRE DK BLU/YEL WIRE DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY FRONT PARKING AID DISPLAY CTRL FRONT PARKING LEFT CORNER SENS FRONT PARKING LEFT MID SENS FRONT PARKING RIGHT CORNER SENS FRONT PARKING RIGHT MID SENS FUSE 40 GROUND GRY WIRE GRY/LT GRN WIRE HI SPD GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES IND DIM INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LEFT FRONT SIDE PARKING ASSIST SENSOR 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 REAR SIDE PARKING ASSIST SENSOR LF SUPPLEMENTAL OBJECT SENS SIG LOGIC LOW REFERENCE LOW SPD GMLAN SERIAL DATA LOW SPD GMLAN SERIAL DATA 2 LR CORNER OBJECT SENS SIG LR MIDDLE OBJECT SENS SIG LR SUPPLEMENTAL OBJECT SENS SIG LT GRN WIRE OBJECT SENS CTRL PARALLEL PARKING ASSIST DISABLE SWITCH PARK ASSIST DISABLE SWITCH PARKING ASSIST CONTROL MODULE PARKING ASSIST IND PARKING ASSIST DISABLE SWITCH REAR PARK ASSIST DISABLE SIGNAL REAR PARK ASSIST LED DISABLE SIG RED WIRE RED/DK GRN WIRE RF SUPPLEMENTAL OBJECT SENS SIG RIGHT FRONT SIDE PARKING ASSIST SENSOR RIGHT MIDDLE FRONT PARKING ASSIST SENSOR RIGHT MIDDLE REAR PARKING ASSIST SENSOR RIGHT OUTER FRONT PARKING ASSIST SENSOR RIGHT OUTER REAR PARKING ASSIST SENSOR RIGHT REAR SIDE PARKING ASSIST SENSOR RR CORNER OBJECT SENS SIG RR MIDDLE OBJECT SENS SIG RR SUPPLEMENTAL OBJECT SENS SIG SERIAL SERIAL DATA COMMUNICATION ENABLE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/DK BLU WIRE WHT/GRY WIRE YEL WIRE YEL/DK BLU WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

BANK 1 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 2 HEATED OXYGEN SENSOR BLK/BRN WIRE BLK/GRN WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/WHT WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRK APPLY BRK APPLY SENS CTRL BRK APPLY SENS SIG BRN/GRY WIRE BRN/WHT WIRE CANISTER VENT SOL FUSE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE ECM IGN FUSE FUEL TANK PRESSURE SENSOR FUSE 9 GRY WIRE GRY/RED WIRE GRY/WHT WIRE HI SPD GMLAN HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL FUSE BLOCK LT GRN/WHT WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR NCA WIRE RED/BRN WIRE SENS LOW REF SERIAL DATA (-) (1) UNDERHOOD FUSE BLOCK VIO/DK BLU WIRE VIO/LT GRN WIRE WHT WIRE WHT/BRN WIRE WHT/DK BLU WIRE WHT/RED WIRE WHT/YEL WIRE YEL/DK BLU WIRE YEL/RED WIRE YEL/WHT WIRE