Buick LaCrosse III (2016-2019) dk grn Wiring diagrams

A/C PRESS SENS A/C REFRIGERANT PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR AIR TEMP SENS SIG AMBIENT AIR TEMPERATURE SENSOR BATT POS VOLT BATT POS VOLT COOLING FAN CTRL RELAY SPEED SIG BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BRN/RED WIRE CLUTCH RELAY CTRL COMPUTER DATA LINES SYSTEM COOL FAN FUSE DK BLU WIRE DK GRN WIRE EBOOST/COOL FAN LT FUSE ENG COOLANT TEMP SENS SIG ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR FUSE 9 GROUND HI SPEED GMLAN SERIAL DATA (-) 1 HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT COOLING FAN MOTOR (BEHIND LEFT SIDE OF RADIATOR) LOGIC NCA WIRE RED/BRN WIRE RED/YEL WIRE RELAY SPEED SIG RIGHT COOLING FAN MOTOR (BEHIND RIGHT SIDE OF RADIATOR) SENS LOW REF SIG GROUND UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLK WIRE WHT/GRY WIRE

ACC IGN VOLT ACC IND ADAPTIVE CRUISE CTRL GAP UP/DOWN SW SIG AMBIENT LIGHT SENS SIG ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES, CRUISE CONTROL, EXTERIOR LIGHTS SYSTEMS ANTI-THEFT SYSTEM BATTERY POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRN WIRE BRN/BLK WIRE CHARGE IND CTRL COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DIMMER SW LO REF DIMMER SW SIG DIMMIMG IND DK BLU WIRE DK BLU/GRY WIRE DK BLU/RED WIRE DK BLU/YEL WIRE DK GRN WIRE DK GRN/BLK WIRE DK GRN/GRY WIRE DK GRN/VIO WIRE DK GRN/WHT WIRE DOOR LOCKS, ANTI-THEFT SYSTEMS ENGINE START/ STOP EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS FRT FOG LP SW SIG CTRL FUSE 18 FUSE 20 FUSE 21 FUSE 22 FUSE 29 FUSE 5 FUSE 8 GRN WIRE GROUND GRY WIRE GRY/VIO WIRE GRY/WHT WIRE HAZARD LED DIMMING SIGNAL HAZARD SW LEFT TURN SIG HAZARD SW RIGHT TURN SIG HAZARD SW SIG HDLP DIMMER SW HI BEAM SIG HDLP SW FLASH TO PASS SIG HORN SW SIG HDLP SW HDLP OFF SIG CTRL HDLP SW ON SIG HDLP SW PARK LAMPS SIG HEADLIGHTS SYSTEM HI SPD GMLAN SERIAL DATA (+) 1 REMOTE FUNCTION ACTR CTRL HI SPD GMLAN SERIAL DATA (+) 1 REMOTE FUNCTION ACTUATOR RECEIVE SIG HI SPD GMLAN SERIAL DATA (-) (1) HORNS SYSTEM HOT AT ALL TIMES IGN MODE SW ACC LED SIG IGN MODE SW START LED SIG IGNITION MODE SW MODE VOLT IGNITION MODE SWITCH INDICATOR DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK KEYLESS ENTRY CONTROL MODULE LED BACKLIGHT DIMMING CTRL LIN BUS 15 LINEAR INTERCONNECT NETWORK SERIAL DATA BUS 4 LOW SPD GMLAN SERIAL DATA LT GRN WIRE PASSIVE START SW 2 LOW REF PASSIVE START SW SIG 2 POWER DISTRIBUTION SYSTEM RAP RLY COIL CTRL RED WIRE RED/BLU WIRE RED/BRN WIRE RED/DK GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE REMOTE FUNCTION ACTR TRANSMIT SIGNAL RUN/CRANK IGN 1 VOLT SECURITY INDICATOR CTRL SET/COAST/RESUME/ ACCELERATE SW SIG WINDSHIELD WIPER SW LOW REF START IND TRACTION CTRL SW SIG 1 TRANSMISSIONS SYSTEM UP/TAP DOWN SW SIG VIO WIRE VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WINDSHIELD WASHER SW SIG WINDSHIELD WIPER SW HI SIG WINDSHIELD WIPER SW LOW SIG WIPER/WASHER SYSTEM YEL WIRE YEL/GRY WIRE

ACCESSORY WAKEUP SERIAL DATA BACKUP LAMP CTRL BATTERY BATTERY CURRENT SENSOR BATTERY FUSE BLOCK BATTERY POSITIVE VOLTAGE BLK WIRE BLK/VIO WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRN WIRE BRN/DK GRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COURTESY LAMP SW SIG CRUISE CONTROL SYSTEM CURRENT SENS CTRL CURRENT SENS LOW REF CURRENT SENS SIG DK BLU WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/BRN WIRE DK GRN/VIO WIRE DK GRN/YEL WIRE DOME LAMP OFF INDICATOR CTRL DOOR LOCKS, ANTI-THEFT SYSTEMS DR LCK ACTUATOR UNLOCK CTRL DR LOCK ACTUATOR LOCK CTRL DR LOCK ACTUATOR LOCK CTRL 2 DRV DR LOCK SW LOCK SIG DRV DR LOCK SW UNLOCK SIG DRV OUTSIDE REAR VIEW MIRR PUDDLE LAMP CTRL FOG LAMP RLY CTRL LIFT GLASS/REAR COMPT LID FUSE 4 GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HDLP HIGH BEAM RLY CTRL HEADLAMP LOW BEAM RLY CTRL HEADLIGHTS SYSTEM HI SPD GMLAN SERIAL DATA (-) (1) HI SPEED GMLAN DATA BUS (-) HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES INADVERTENT POWER CTRL INTERIOR LAMP CTRL INTERIOR LAMP DEFEAT SW SIG PPL LOGISTIC MODE RLY OPEN CTRL LED AMBIENT LIGHTING CTRL 1 LED BACKLIGHT DIMMING CTR LEFT CORNERING LAMP RLY CTRL LEFT PARK LAMP CTRL LEFT REAR DR LOCK MTR STATUS LEFT REAR STOP LAMP CTRL LF TURN SIG LAMP CTRL LIFT GLASS/REAR COMPT LID INTERIOR RELEASE SIG LIFTGATE AJAR SWITCH SIG 1 LINEAR INTERCONNECT NETWORK BUS 2 LINEAR INTERCONNECT NETWORK BUS 3 LOGISTIC MODE RLY CLOSE CTRL LR STOP/TURN SIG LAMP CTRL MTR RELEASE CTRL CRUISE/ETC/TCC BRAKE SIGNAL PASS DR LOCK SW LOCK CTRL PASS DR LOCK SW UNLOCK CTRL POWER DISTRIBUTION SYSTEM PUSH BUTTON START CHALLENGE ACTIVE REAR COMPT LID LAMP CTRL REAR LICENSE LAMP CTRL RED/GRY WIRE RED/WHT WIRE REMOTE PRNDL ENABLE RIGHT CORNERING LAMP RLY CTRL RIGHT FRT DRL CTRL RIGHT FRT TURN SIG LAMP CTRL RIGHT PARK LAMP CTRL RIGHT REAR DR LOCK MTR STATUS RIGHT REAR STOP LAMP CTRL RIGHT REAR STOP/TURN LAMP CTRL RR CLOSURE HANDLE SW OPEN SIG LINEAR INTERCONNECT NETWORK DATA BUS 1 RUN/CRANK RELAY COIL CTRL SERIAL DATA COMM ENABLE STARTING/CHARGING SYSTEM STOP LAMP RELAY COIL CTRL TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS VIO WIRE VIO/DK BLU WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/DK BLU WIRE WHT/YEL WIRE WINDSHIELD WASHER RELAY CTRL WINDSHIELD WIPER MTR RLY COIL WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/DK BLU WIRE

ACC WAKEUP SERIAL DATA AMBIENT LIGHT/ SUNLOAD SENSOR BATT POS VOLT BATTERY POSITIVE VOLTAGE BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) DATA BUS 1 DATA BUS 11 DATA BUS 15 DATA BUS 4 DATA LINK CONNECTOR (LOWER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/VIO WIRE DK BLU/YEL WIRE DK GRN WIRE DK GRN/BRN WIRE DK GRN/DK BLU WIRE DK GRN/GRY WIRE DK GRN/VIO WIRE DK GRN/WHT WIRE DK GRN/YEL WIRE FUSE 20 FUSE 25 FUSE 34 FUSE 5 GROUND GRY/LT GRN WIRE HI SPD GMLAN SERIAL DATA (+) 8 HI SPD GMLAN SERIAL DATA (+) 9 HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) HI SPD GMLAN SERIAL DATA (-) 9 LOW SPD GMLAN SERIAL DATA HOT AT ALL TIMES IMMOBILIZER CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK LEFT REAR WINDOW SWITCH LIN SERIAL LIN SERIAL DATA BUS 1 LIN SERIAL DATA BUS 11 LIN SERIAL DATA BUS 15 LIN SERIAL DATA BUS 2 LIN SERIAL DATA BUS 3 LIN SERIAL DATA BUS 4 LOGIC SUNROOF MOTOR LOGIC WINDSHIELD WIPER MOTOR LOW SPD GMLAN SERIAL DATA LOW SPD GMLAN SERIAL DATA 2 LT GRN WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RIGHT REAR WINDOW SWITCH SERIAL DATA COMM ENABLE SERIAL DATA GATEWAY MODULE (NEAR BODY CONTROL MODULE) VIO WIRE VIO/YEL WIRE WHT WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/GRY WIRE

ACC WAKEUP SERIAL DATA ACCESSORY WAKEUP DATA BUS 21 DATA BUS 26 DK BLU WIRE DK BLU/BLK WIRE DK BLU/YEL WIRE DK GRN WIRE DK GRN/DK BLU WIRE ENGINE CONTROL MODULE HI SPD GMLAN HI SPD GMLAN SERIAL DATA (+) (3) HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) LIN SERIAL LIN SERIAL DATA BUS 21 LIN SERIAL DATA BUS 26 LOGIC LOGIC ACTIVE GRILLE AIR SHUTTER MOTOR MODULE 1 LOGIC ACTIVE GRILLE AIR SHUTTER MOTOR MODULE 2 LOGIC TRANSMISSION CONTROL MODULE AUTOMATIC TRANSMISSION ASSEMBLY LT GRN/VIO WIRE NCA WIRE SERIAL DATA SERIAL DATA (-) (1) SERIAL DATA COMM ENABLE SUSPENSION CONTROL MODULE TRANSMISSION RANGE CONTROL MODULE (TOP OF TRANSMISSION) TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LEVER KNOB TRANSMISSION SHIFT LEVER POSITION INDICATOR LOGIC UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/YEL WIRE WHT WIRE WHT/DK BLU WIRE

A/C PRESS SENS A/C REFRIGERANT PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR AIR TEMP SENS SIG AMBIENT AIR TEMPERATURE SENSOR BATT POS VOLT BATT POS VOLT COOLING FAN CTRL RELAY SPEED SIG BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM COOL FAN FUSE DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY EBOOST/ COOL FAN LT FUSE ENG COOLANT TEMP SENS SIG ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND ENGINE COOLANT TEMPERATURE SENSOR FUSE 9 GROUND GRY/LT GRN WIRE HI SPEED GMLAN SERIAL DATA (-) 1 HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT COOLING FAN MOTOR (BEHIND LEFT SIDE OF RADIATOR) LOGIC LOW SPEED GMLAN SERIAL DATA 2 NCA WIRE RED/BRN WIRE RED/YEL WIRE RELAY SPEED SIG RIGHT COOLING FAN MOTOR (BEHIND RIGHT SIDE OF RADIATOR) SENS LOW REF SIG GROUND UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLK WIRE

BLK WIRE BLK/BLU WIRE BLK/DK BLU WIRE BLU/GRN WIRE BLU/VIO WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DOWN DRIVER LEFT REAR SEAT HAPTIC MOVEMENT MOTOR DRIVER RIGHT REAR SEAT HAPTIC MOVEMENT MOTOR DRIVER SEAT ADJUSTER SWITCH DRIVER SEAT MEMORY SWITCH EXIT FORWARD SW SIG FRONT VERTICAL DWN SW SIG FRONT VERTICAL UP SW SIG GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRY/BLK WIRE GRY/GRN WIRE HORIZONTAL MTR POS SENS SIG ILL LH REAR HAPTIC SEAT MTR CTRL MEM 1 MEM 2 MEM SEAT SW SET SIG MEM SEAT SW SIG (1) MEM SENS HI REF (2) MEM SW LOW REF REAR VERTICAL DWN SW SIG REAR VERTICAL UP SW SIG REARWARD SW SIG RECLINE FORWARD SW SIG RECLINE MTR POS SENS SIG RECLINE REARWARD SW SIG RH REAR HAPTIC SEAT MTR CTRL RWD SEAT MEMORY CONTROL MODULE (UNDER DRIVER'S SEAT) SET- USED) VERTICAL MTR POS SENS SIG VIO WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE

AIR IONIZER AUTOMATIC TRANSMISSION ASSEMBLY AUXILIARY HEATER COOLANT PUMP RELAY BATTERY SAVER RELAY 1 BLK WIRE BLU/GRN WIRE BODY CONTROL MODULE CRN RT FUSE DATA LINK CONNECTOR DK GRN WIRE FROM EBOOST/ COOL FAN LT FUSE (DIAGRAM 2 OF 8) FROM FUSE 35 (DIAGRAM 7 OF 8) FROM FUSE 42 (DIAGRAM 7 OF 8) FRONT OVERHEAD CONSOLE ASSEMBLY FRT WPR FUSE FUSE 20 FUSE 21 FUSE 22 FUSE 23 FUSE 24 FUSE 25 FUSE 26 FUSE 29 FUSE 30 FUSE 31 FUSE 32 FUSE 33 FUSE 34 FUSE 41 GARAGE DOOR OPENER GRY/VIO WIRE HDLP LVL FUSE HVAC CONTROL MODULE LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP HORIZONTAL MOTOR LEFT STEERING WHEEL CONTROLS SWITCH NCA WIRE PPL RAIN/ AMBIENT LIGHT SENSOR MODULE RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT CORNERING LAMP RELAY RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP HORIZONTAL MOTOR RIGHT STEERING WHEEL CONTROLS SWITCH SECONDARY AIR INJECTION SOLENOID VALVE RELAY SERIAL DATA GATEWAY MODULE STEERING COLUMN LOCK MODULE STEERING WHEEL AIR BAG COIL TCM/ ECM FUSE TRANSMISSION CONTROL MODULE VIO WIRE VIO/LT BLU WIRE W/ ADAPTIVE CRUISE CONTROL WINDSHIELD WIPER MOTOR

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

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