Buick LaCrosse III (2016-2019) wht Wiring diagrams

ACTIVE SAFETY CONTROL MODULE BATT POS VOLT BATT POST VOLT BLK WIRE BLK/WHT WIRE BLU/GRY WIRE COMPUTER DATA LINES SYSTEM DK BLU/VIO WIRE DK BLU/YEL WIRE DRIVER INFORMATION CENTER DISPLAY FRONT OBJECT SENS CTRL 2 FRONT OBJECT SENS SPLY VOLT 2 FUSE 40 GRN WIRE GRY WIRE GRY/LT GRN WIRE GRY/VIO WIRE HI SPD GMLAN SER DATA (-) 8 HI SPD GMLAN SERIAL DATA (+) 4 HI SPD GMLAN SERIAL DATA (+) 8 HI SPD GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEPARTURE WARNING DISABLE SW SIG LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LO SPD GMLAN SERIAL DATA LOGIC LONG RANGE RADAR SENSOR MODULE (FRONT OF VEHICLE, BEHIND GRILLE) LOW SPD GMLAN SERIAL DATA 2 LT GRN WIRE PARK ASSIST IND PARKING ASSIST CONTROL MODULE RED/DK GRN WIRE SERIAL DATA COMM ENABLE SIG GND WHT WIRE WHT/DK BLU WIRE WHT/GRY WIRE

BATT POS BATT POS VOLT BLK WIRE BODY CONTROL MODULE BRN WIRE CENTER CONSOLE COMPARTMENT LAMP COMPUTER DATA LINES SYSTEM COURTESY LP SW SIG INADVERTENT PWR CTRL DEFEAT SW SIG INTERIOR LAMP CTRL DC DC BATT 2/AWD FUSE DK BLU WIRE DRIVER DOOR ACCENT LAMP DRIVER DOOR HANDLE FLOOD LAMP DRIVER DOOR PULL HANDLE FLOOD LAMP FUSE 10 FUSE 18 FUSE 5 GRN/GRY WIRE GRY WIRE GRY/BRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL COMPARTMENT LAMP INSTRUMENT PANEL FUSE BLOCK LED AMBIENT LIGHTING CTRL 1 LID LAMP CTRL NCA WIRE PASSENGER DOOR ACCENT LAMP PASSENGER DOOR HANDLE FLOOD LAMP PASSENGER DOOR PULL HANDLE FLOOD LAMP POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER REAR COMPARTMENT COURTESY LAMP RED/DK BLU WIRE RED/DK GRN WIRE RED/GRY WIRE RED/YEL WIRE REGULATED SERIAL DATA (-) (1) SPLY VOLT 2 UNDERHOOD FUSE BLOCK VOLT W/ STOP/ START SYSTEM W/ STOP/START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BRN WIRE WHT/YEL WIRE

BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER DOOR COURTESY LAMP FRONT OVERHEAD CONSOLE ASSEMBLY GRN WIRE GRY WIRE GRY/BRN WIRE LEFT INSTRUMENT PANEL COURTESY LAMP LEFT ROOF RAIL DOME/ READING LAMPS LEFT SUNSHADE LEFT SUNSHADE MIRROR LAMP LOGIC NCA WIRE PASSENGER DOOR COURTESY LAMP PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR RF DR AJAR SW SIG RIGHT INSTRUMENT PANEL COURTESY LAMP RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RIGHT ROOF RAIL DOME/ READING LAMPS RIGHT SUNSHADE RIGHT SUNSHADE MIRROR LAMP RR DR AJAR SW SIG WHT WIRE WHT/BRN WIRE WHT/YEL WIRE

"CHECK ENGINE" IND CTRL ABS IND. ADAPTIVE CRUISE IND AFL IND AIR BAG IND AUTO STOP IND BATT POS VOLT BLK WIRE BRAKE IND BRAKE WARNING IND BRN WIRE CHARGING IND COMPUTER DATA LINES SYSTEM CRUISE IND DATA BUS 3 DATA BUS 4 DK GRN/BLK WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DOOR OPEN IND DOWN DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER DISPLAY ECS IND ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND ENGINE OIL PRESSURE IND ESC OFF IND FORWARD COLLISION ALERT LED CTRL FRONT FOG LAMP IND FUEL GAUGE FUSE 21 FUSE 39 GRY WIRE GRY/LT GRN WIRE GRY/VIO WIRE HEAD-UP DISPLAY CIRCUIT HEAD-UP DISPLAY SIG HIGH BEAM LAMP IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGNITION 1 VOLT ILLUMINATION INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK KM/H IND LANE DEPARTURE WARNING IND LANE KEEPING ASSIST IND LED DISPLAY DIMMING CTRL LEFT LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LEFT TURN IND LF DR AJAR LIN SERIAL DATA BUS 12 LOGIC LOGIC DRIVER WINDOW MOTOR LOW SPD GMLAN SER DATA 2 LR DR AJAR LVDS BK MALFUNCTION IND MIL SS FUSE MOST SERIAL DATA (+) MPH IND NAVIGATION SYSTEM PARK BRAKE IND PARK IND PARK LAMP IND REAR FOG LAMP IND RED/DK BLU WIRE RED/LT BLU WIRE RIGHT RIGHT STEERING WHEEL CONTROLS SWITCH RIGHT TURN IND SEAT BELT IND SECURITY IND SEEK DOWN SEEK UP SELECT SERVICE PARK BRAKE IND SPEEDOMETER SW SIG TACHOMETER TIRE PRESSURE IND TRACTION CONTROL OFF IND UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE WHT WIRE WHT/GRN WIRE

AIR TEMP SENS SIG AJAR SW SIG 1 AMBIENT AIR TEMPERATURE SENSOR BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRN WIRE BRN/LT GRN WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK BLU WIRE DK BLU/BLK WIRE DK GRN/DK BLU WIRE DK GRN/GRY WIRE DK GRN/VIO WIRE DK GRN/YEL WIRE ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE OIL LEVEL SWITCH ENGINE OIL PRESSURE SENSOR FUEL LEVEL SENSOR FUEL LEVEL SENSOR ASSEMBLY FUEL PUMP, LEVEL SENSOR ASSEMBLY GRY WIRE GRY/RED WIRE HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA BUS (+) 3 HIGH SPD GMLAN SERIAL DATA (+) 1 LIN DATA BUS 26 LOGIC NCA WIRE OIL LEVEL SW SIG OIL PRESS SENS LOW REF OIL PRESS SENS SIG PARK BRAKE CONTROL SWITCH PARK BRK APPLY SW SIG PARK BRK REL SW SIG PARK BRK REL SW VOLT REF PARK BRK SW SIG PARK BRK SW VOLT REF PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR PRIMARY FUEL LEVEL SENSOR PRIMARY LEVEL SENS SIG PRK BRK SW SPLY VOLT REAR COMPARTMENT LID LATCH RED/DK BLU WIRE REMOTE PRNDM ENABLE RF DR AJAR SW SIG RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RLY COIL CTRL RR DR AJAR SW SIG SECONDARY FUEL LEVEL SENSOR SECONDARY LEVEL SENS SIG SIG GND TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LEVER POSITION INDICATOR TRANSMISSION SHIFT LEVER KNOB VIO/GRY WIRE WHT WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE

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

BLK WIRE BLK/YEL WIRE BLU/GRY WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU/RED WIRE DK GRN/BLK WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH FRONT OVERHEAD CONSOLE ASSEMBLY GREEN LED CTRL GRY WIRE GRY/GRN WIRE GRY/LT GRN WIRE HAZARD WARNING SWITCH HEADLAMP SWITCH HEATED STEERING WHEEL IND INSIDE STEERING WHEEL) LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LOW SPD GMLAN PASSENGER DOOR LATCH ASSEMBLY PASSENGER DOOR LOCK SWITCH PNK SW LED CTRL WIRE RED LED CTRL WIRE RIGHT STEERING WHEEL CONTROLS SWITCH SERIAL DATA 2 SIG STATUS STEERING WHEEL HEATING CONTROL MODULE TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/GRY WIRE

BLK WIRE COMPUTER DATA LINES SYSTEM CTRL DK GRN/BLK WIRE DK GRN/DK BLU WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER WINDOW/ LOGIC OUTSIDE REAR VIEW MIRROR SWITCH FRONT VIEW CAMERA GARAGE DOOR OPENER GROUND DISTRIBUTION SYSTEM HVAC CONTROLS IND INFO DISPLAY MODULE INSTRUMENT CLUSTER INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEPARTURE WARNING LIGHT IND LEFT REAR LOGIC WINDOW SWITCH LOCAL INTERCONNECT NETWORK BUS 10 LOCAL INTERCONNECT NETWORK BUS 12 LOCAL INTERCONNECT NETWORK BUS 26 LOCAL INTERCONNECT NETWORK BUS 9 LOGIC LT GRN WIRE PARKING ASSIST CONTROL MODULE PARKING ASSIST IND RIGHT REAR LOGIC WINDOW SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LEVER KNOB TRANSMISSION SHIFT LEVER POSITION INDICATOR W/ PARK ASSIST, LANE KEEP ASSIST WHT 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 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

AJAR SW SIG 1 B+ VOLT BLK WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/YEL WIRE DRIVER INFORMATION CENTER DISPLAY EXTERIOR REAR COMPARTMENT LID UNLATCH SWITCH FUSE 41 20 GRY/LT GRN WIRE GRY/YEL WIRE HANDLE SW OPEN SIG HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INTERIOR REAR COMPARTMENT LID UNLATCH SWITCH INTERIOR RELEASE SIG LOGIC LOW SPD GMLAN SERIAL DATA 2 LOW SPEED GMLAN SERIAL DATA (+) 1 MTR RELEASE CTRL REAR CLOSR FUSE REAR COMPARTMENT LID LATCH REAR COMPARTMENT LID UNLATCH RELAY RED/BRN WIRE UNDERHOOD FUSE BLOCK VIO/DK BLU WIRE VIO/GRY WIRE W/ STOP/START SYSTEM W/O STOP/START SYSTEM WHT WIRE YEL WIRE YEL/DK BLU WIRE