Buick LaCrosse III (2016-2019) blk Wiring diagrams

BATTERY FUSE BLOCK BLK WIRE BRN WIRE BRN/VIO WIRE BRN/YEL WIRE DK GRN/YEL WIRE DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR FUSE 2 HOT AT ALL TIMES HTD MIR FUSE HVAC CONTROL MODULE (BEHIND HVAC CONTROLS) HVAC CONTROLS LEFT "C" PILLAR) LEFT REAR WINDOW DEFOGGER NOISE FILTER LOGIC NETWORK SERIAL DATA BUS 9 PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS REAR DEFOG FUSE REAR DEFOG RLY CTRL NETWORK SERIAL DATA BUS 9 REAR DEFOGGER GRID REAR DEFOGGER IND REAR DEFOGGER RELAY REAR DEFOGGER SWITCH RED/YEL WIRE RIGHT REAR WINDOW DEFOGGER NOISE FILTER UNDERHOOD FUSE BLOCK YEL WIRE

BLK WIRE BODY CONTROL MODULE BRN WIRE BRN/WHT WIRE GRN WIRE GRY WIRE HORN FUSE HORN RELAY HORN RELAY CONTROL HORN SWITCH HORN SWITCH SIGNAL HOT AT ALL TIMES LEFT HORN RED WIRE RIGHT HORN STEERING WHEEL AIR BAG COIL UNDERHOOD FUSE BLOCK WHT WIRE

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

AUDIO LOW REF AUDIO SIG + BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRN/BLU WIRE CAMERA SIG 2 CELL/CELL 1 CELLULAR PHONE MICROPHONE COAX COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN/WHT WIRE GMLAN SERIAL DATA (+) 9 GPS GPS/CELL 2 GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY/VIO WIRE GRY/YEL WIRE HUMAN MACHINE INTERFACE CONTROL MODULE (RIGHT SIDE OF DASH) INFOTAINMENT DISPLAY SIG 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/VIO WIRE RED/YEL WIRE SERIAL DATA (-) 9 SERIAL DATA BUS 5 USB USB SERIAL DATA W/ ONSTAR W/O ONSTAR W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLU WIRE WHT/DK BLU 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

BLK WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BRN WIRE CLOSE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DOWN EXPRESS CLOSE EXPRESS DOWN EXPRESS OPEN EXPRESS UP FRONT OVERHEAD CONSOLE ASSEMBLY GRY WIRE HOT AT ALL TIMES LOGIC LT BLU WIRE ORG/ WIRE PNK WIRE PPL PPL/WHT WIRE RED/GRY WIRE RED/WHT WIRE SUNROOF FUSE SUNROOF MOTOR (FRONT CENTER OF ROOF) SUNROOF SUNSHADE MOTOR TAN WIRE UNDERHOOD FUSE BLOCK VIO WIRE WHT WIRE YEL WIRE

BLK WIRE CAMERA SIG 2 GROUND GRY WIRE GRY/YEL WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED HUMAN MACHINE INTERFACE CONTROL MODULE LOW REF NCA WIRE REAR VIEW CAMERA (ABOVE LICENSE PLATE) RED WIRE RUN/CRANK IGN 1 VOLT RVC/ VENT FUSE UNDERHOOD FUSE BLOCK VIO/WHT WIRE WHT WIRE WHT/BLU WIRE

ACC WAKEUP BATT POS VOLT BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/DK BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES DATA OUT SIG DK BLU WIRE DK BLU/BLK WIRE DK BLU/GRY WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE FUEL LEVEL SENSOR FUEL MDL FUSE FUEL PUMP FUEL PUMP CTRL FUEL PUMP DRIVER CONTROL MODULE FUEL PUMP, LEVEL SENSOR ASSEMBLY (IN FUEL TANK) GRY WIRE GRY/WHT WIRE HI SPD GMLAN HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT KNOCK SENSOR #2 KNOCK SENSOR 1 LOW REF LT GRN/DK BLU WIRE MIL SS FUSE NCA WIRE PRIMARY FUEL LEVEL SENSOR RED/VIO WIRE SECONDARY FUEL LEVEL SENSOR FUEL LEVEL SENSOR ASSEMBLY SERIAL DATA SERIAL DATA (+) (3) SHIELD GND SYSTEM UNDERHOOD FUSE BLOCK VIO/DK BLU WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/DK BLU WIRE YEL/WHT WIRE