Buick LaCrosse III (2016-2019) vio/gry Wiring diagrams

"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

BATT POS VOLT BLK WIRE BLU/GRY WIRE BODY CONTROL MODULE COLLISION ALERT INDICATORS COLLISION ALERT SWITCH COMM ENABLE COMPUTER DATA LINES SYSTEM DK BLU WIRE FRONT VIEW CAMERA FUSE 40 GMLAN SERIAL DATA (-) 8 GROUND GRY WIRE GRY/GRN WIRE GRY/LT GRN WIRE GRY/WHT WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH IP BODY IGN FUSE LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LEFT STEERING WHEEL CONTROLS SWITCH LO SPEED GMLAN SERIAL DATA 2 LOGIC LOW SPEED GMLAN LT GRN WIRE RED WIRE RED/DK GRN WIRE STEERING WHEEL AIR BAG COIL SW REF SW SIG UNDERHOOD FUSE BLOCK UP/DOWN SW SIG VIO/GRY WIRE WHT WIRE WHT/DK BLU WIRE WHT/GRY 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

B+ VOLT BLK WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK BLU/VIO WIRE DK GRN WIRE DK GRN/WHT WIRE DK GRN/YEL WIRE DOOR LOCK MTR STATUS SIG DOOR LOCK KEY SW UNLOCK SIG DOOR LOCKS SYSTEM DOWN DRIVER WINDOW MOTOR DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH EXPRESS FUSE 1 FUSE 2 GRY WIRE HOT AT ALL TIMES ILL INSTRUMENT PANEL FUSE BLOCK LEFT FRONT WINDOW DOWN SWITCH LEFT FRONT WINDOW EXPRESS SWITCH LEFT FRONT WINDOW UP SWITCH LEFT REAR WINDOW DOWN SWITCH LEFT REAR WINDOW EXPRESS SWITCH LEFT REAR WINDOW UP SWITCH LF DR AJAR SW SIG LOCKOUT IND LOCKOUT SWITCH LOGIC N/W BUS 3 PASSENGER WINDOW MOTOR PASSENGER WINDOW SWITCH RED/DK BLU WIRE RED/WHT WIRE RF DR AJAR SW SIG RIGHT FRONT WINDOW DOWN SWITCH RIGHT FRONT WINDOW EXPRESS SWITCH RIGHT FRONT WINDOW UP SWITCH RIGHT REAR WINDOW DOWN SWITCH RIGHT REAR WINDOW EXPRESS SWITCH RIGHT REAR WINDOW UP SWITCH SW DOWN SIG SW DRV DOWN SIG SW DRV EXP SIG SW DRV UP SIG SW EXPRESS SIG SW UP SIG UNDERHOOD FUSE BLOCK VIO/GRY WIRE W/O MEMORY W/ MEMORY WHT/VIO WIRE WNDW MIR SEAT FUSE YEL/BLK WIRE

BLK WIRE DK GRN WIRE DK GRN/WHT WIRE FRONT OVERHEAD CONSOLE ASSEMBLY GRY WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED NCA WIRE REAR AUDIO CONTROL MODULE REAR WINDOW SUNSHADE MODULE REAR WINDOW SUNSHADE MOTOR RED WIRE RVC/ VENT FUSE SUNSHADE SWITCH UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE VIO/WHT WIRE YEL 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

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

BANK 1 SENS 1 BANK 1 SENS 2 BANK 2 SENS 1 BANK 2 SENS 2 BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/DK BLU WIRE BRN/LT GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CTRL IND DK BLU/GRY WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND ENGINE OIL IND ENGINE OIL LEVEL SWITCH ENGINE OIL PRESSURE SENSOR FUEL GAUGE FUEL IND FUEL LEVEL SENS SIG FUEL PRESSURE SENSOR FUSED SPLY 4 GRY/LT GRN WIRE GRY/WHT WIRE INSTRUMENT CLUSTER KNOCK SENS LIN BUS 21 LOGIC LOW REF (1) LOW REF 2 LOW SPD GMLAN SERIAL DATA 2 LT GRN/DK BLU WIRE LT GRN/VIO WIRE LT GRN/YEL WIRE MALFUNCTION IND NCA WIRE OIL LEVEL SW SIG OIL PRESSURE PRIMARY SEC SENS LOW REF SENS SIG THROTTLE THROTTLE SIG VIO/DK BLU WIRE VIO/GRY WIRE VIO/WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BRN WIRE YEL/DK BLU WIRE YEL/WHT WIRE

BANK 1 INTAKE CAMSHAFT POSITION ACTUATOR PARK LOCK SOLENOID VALVE BANK 1 SENSOR 1 HEATED OXYGEN SENSOR BANK 1 VALVE LIFTER OIL SOLENOID VALVE BANK 2 INTAKE CAMSHAFT POSITION ACTUATOR PARK LOCK SOLENOID VALVE BANK 2 SENSOR 1 HEATED OXYGEN SENSOR BLK/GRY WIRE BLK/VIO WIRE BLU WIRE BRN/DK BLU WIRE BRN/RED WIRE BRN/WHT WIRE CRANKSHAFT POSITION SENSOR DK BLU WIRE DK BLU/GRY WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE ENGINE OIL PRESSURE CONTROL SOLENOID VALVE EVAPORATIVE EMISSION PURGE SOLENOID VALVE GRY/LT GRN WIRE GRY/WHT WIRE LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/LT BLU WIRE LT GRN/YEL WIRE NCA WIRE VIO/BLU WIRE VIO/DK BLU WIRE VIO/GRY WIRE VIO/WHT WIRE WHT/BLK WIRE YEL WIRE YEL/DK BLU WIRE YEL/LT GRN WIRE YEL/WHT WIRE