Buick LaCrosse III (2016-2019) (left side of luggage compt) Wiring diagrams

BATTERY POSITIVE VOLT BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLU/GRY WIRE BRN/GRN WIRE BRN/LT BLU WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/YEL WIRE DRIVER INFORMATION CENTER DISPLAY FT AXLE LEVEL SENS SIG FT LEVEL SENS LOW REF GMLAN SER DATA (-) (2) GMLAN SER DATA - (1) GRN/GRY WIRE GRY/LT BLU WIRE GRY/LT GRN WIRE GRY/VIO WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT SHOCK ABSORBER ACTUATOR LEFT FRONT SUSPENSION POSITION SENSOR LEFT REAR SHOCK ABSORBER ACTUATOR LF DAMPING SERVO CTRL LOGIC LOW SPEED GMLAN SERIAL DATA 2 LR DAMPING SERVO CTRL NCA WIRE RED/GRN WIRE RF ACCEL LOW REF RF DAMPING SERVO CTRL RF WHEEL ACCEL SIG RIGHT FRONT SHOCK ABSORBER ACTUATOR RIGHT FRONT SUSPENSION POSITION SENSOR RIGHT REAR SHOCK ABSORBER ACTUATOR RR DAMPING SERVO CTRL RR HTD SEAT/ BSM/ESS FAN FUSE SERIAL DATA COMM ENABLE SUSPENSION CONTROL MODULE UNDERHOOD FUSE BLOCK WHT WIRE WHT/DK BLU WIRE WHT/RED WIRE

ACTR CTRL ACTR RECEIVE ACTR TRANSMIT AMBIENT LIGHT/SUNLOAD SENSOR BATT POSITIVE VOLT BLK WIRE BLU WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRN WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/BLK WIRE DR LCK ACTUATOR LCK CTRL DR LCK ACTUATOR LCK CTRL 2 DR LCK ACTUATOR UNLCK CTRL DRIVER DOOR LOCK SWITCH DRV DR LCK SW LCK SIG DRV DR LCK SW UNLCK SIG FRONT, REAR PARK ASSIST, LANE KEEP ASSIST FUSE 20 FUSE 41 GRY WIRE GRY/WHT WIRE HAZARD SW SIG HEADLAMP HI BEAM RLY CTRL HEADLIGHTS SYSTEM HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK INTERIOR LIFTGATE AJAR SW SIG 1 LIGHTS SYSTEM LR DR LCK MTR STATUS LT GRN WIRE PASS DR LCK SW LCK CTRL PASS DR LCK SW UNLCK CTRL PASSENGER DOOR LOCK SWITCH POWER SUPPLY TRANSFORMER REAR COMPARTMENT LID LATCH RED/BRN WIRE RED/YEL WIRE REMOTE CONTROL DOOR LOCK RECEIVER REMOTE FUNCTION ACTR CTRL REMOTE FUNCTION ACTR RECEIVE SIG REMOTE FUNCTION ACTR TRANSMIT SIG RR DR LCK MTR STATUS SECURITY IND CTRL SERIAL DATA (+) (3) SERIAL DATA (-) (1) SIG SPLY VOLT 1 VIO WIRE VIO/GRY WIRE W/ START/STOP SYSTEM W/ START/STOP SYSTEM W/O START/STOP SYSTEM WHT WIRE WHT/VIO WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE YEL/VIO WIRE

ACC IGN VOLT ACTIVE SIG ACTR CTRL ACTR RECEIVE ACTR TRANSMIT AMBIENT LIGHT/SUNLOAD SENSOR BATT POSITIVE VOLT BLK WIRE BLU WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRN WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DK BLU WIRE DK GRN/YEL WIRE DR LCK ACTUATOR LCK CTRL DR LCK ACTUATOR LCK CTRL 2 DR LCK ACTUATOR UNLCK CTRL DRIVER DOOR LOCK SWITCH DRV DR LCK SW LCK SIG DRV DR LCK SW UNLCK SIG ENGINE CONTROL MODULE FUSE 20 FUSE 41 GRY WIRE GRY/WHT WIRE HAZARD SW SIG HEADLAMP HI BEAM RLY CTRL HEADLIGHTS SYSTEM HOOD AJAR SWITCH HOOD STATUS A SIG HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK INTERIOR LIFTGATE AJAR SW SIG 1 LIGHTS SYSTEM LOGIC LR DR LCK MTR STATUS LT GRN WIRE PASS DR LCK SW LCK CTRL PASS DR LCK SW UNLCK CTRL PASSENGER DOOR LOCK SWITCH PASSENGER WINDOW MOTOR PPL REAR COMPARTMENT LID LATCH RED/BRN WIRE RED/YEL WIRE REMOTE CONTROL DOOR LOCK RECEIVER REMOTE FUNCTION ACTR CTRL REMOTE FUNCTION ACTR RECEIVE SIG REMOTE FUNCTION ACTR TRANSMIT SIG GND RF DR AJAR RR DR LCK MTR STATUS RUN/CRANK IGN 1 VOLT SECURITY IND CTRL SERIAL DATA (-) (1) SIG SW SIG VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE YEL/VIO WIRE

ACTIVE SAFETY CONTROL MODULE BLK WIRE CENTER HIGH MOUNTED STOP LAMP EXTERIOR REAR COMPARTMENT LID UNLATCH SWITCH FRONT OVERHEAD CONSOLE ASSEMBLY FUEL PUMP DRIVER CONTROL MODULE GARAGE DOOR OPENER LEFT AUXILIARY TAIL LAMP LEFT BACKUP LAMP LEFT LICENSE PLATE LAMP LEFT REAR COMPARTMENT LID TAIL LAMP ASSEMBLY LEFT REAR SEAT SIDE AIR BAG LEFT REAR SIDE MARKER LAMP LEFT REAR TURN SIGNAL LAMP LEFT ROOF RAIL DOME/ READING LAMPS LEFT SIDE OBJECT SENSOR MODULE LEFT SUNSHADE MIRROR LAMP LEFT TAIL LAMP LEFT TAIL LAMP ASSEMBLY LEFT TAIL/STOP LAMP NCA WIRE OBSTACLE DETECTION ENHANCED PARKING ASSIST CONTROL MODULE REAR COMPARTMENT COURTESY LAMP REAR COMPARTMENT LID LATCH REAR DIFFERENTIAL CLUTCH CONTROL MODULE REAR VIEW CAMERA REAR WINDOW SUNSHADE MODULE REMOTE CONTROL DOOR LOCK RECEIVER RIGHT AUXILIARY TAIL LAMP RIGHT BACKUP LAMP RIGHT LICENSE PLATE LAMP RIGHT REAR COMPARTMENT LID TAIL LAMP ASSEMBLY RIGHT REAR SEAT HEATING CONTROL MODULE RIGHT REAR SEAT SIDE AIR BAG RIGHT REAR SIDE MARKER LAMP RIGHT REAR TURN SIGNAL LAMP RIGHT ROOF RAIL DOME/ READING LAMPS RIGHT SIDE OBJECT SENSOR MODULE RIGHT SUNSHADE MIRROR LAMP RIGHT TAIL LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TAIL/STOP LAMP SUNROOF MOTOR SUSPENSION CONTROL LAMP W/ BRAKE PREFILL INTEGRATED BRAKE ASSIST

ACTR CTRL ACTR RECEIVE ACTR TRANSMIT AMBIENT LIGHT/SUNLOAD SENSOR BATT POSITIVE VOLT BLK WIRE BLU WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRN WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/BLK WIRE DR LCK ACTUATOR LCK CTRL DR LCK ACTUATOR LCK CTRL 2 DR LCK ACTUATOR UNLCK CTRL DRIVER DOOR LOCK SWITCH DRV DR LCK SW LCK SIG DRV DR LCK SW UNLCK SIG FRONT, REAR PARK ASSIST, LANE KEEP ASSIST FUSE 20 FUSE 41 GRY WIRE GRY/WHT WIRE HAZARD SW SIG HEADLAMP HI BEAM RLY CTRL HEADLIGHTS SYSTEM HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK INTERIOR LIFTGATE AJAR SW SIG 1 LIGHTS SYSTEM LR DR LCK MTR STATUS LT GRN WIRE PASS DR LCK SW LCK CTRL PASS DR LCK SW UNLCK CTRL PASSENGER DOOR LOCK SWITCH POWER SUPPLY TRANSFORMER REAR COMPARTMENT LID LATCH RED/BRN WIRE RED/YEL WIRE REMOTE CONTROL DOOR LOCK RECEIVER REMOTE FUNCTION ACTR CTRL REMOTE FUNCTION ACTR RECEIVE SIG REMOTE FUNCTION ACTR TRANSMIT SIG RR DR LCK MTR STATUS SECURITY IND CTRL SERIAL DATA (+) (3) SERIAL DATA (-) (1) SIG SPLY VOLT 1 VIO WIRE VIO/GRY WIRE W/ START/STOP SYSTEM W/ START/STOP SYSTEM W/O START/STOP SYSTEM WHT WIRE WHT/VIO WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE YEL/VIO WIRE

ACC IGN VOLT ACTIVE SIG ACTR CTRL ACTR RECEIVE ACTR TRANSMIT AMBIENT LIGHT/SUNLOAD SENSOR BATT POSITIVE VOLT BLK WIRE BLU WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRN WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DK BLU WIRE DK GRN/YEL WIRE DR LCK ACTUATOR LCK CTRL DR LCK ACTUATOR LCK CTRL 2 DR LCK ACTUATOR UNLCK CTRL DRIVER DOOR LOCK SWITCH DRV DR LCK SW LCK SIG DRV DR LCK SW UNLCK SIG ENGINE CONTROL MODULE FUSE 20 FUSE 41 GRY WIRE GRY/WHT WIRE HAZARD SW SIG HEADLAMP HI BEAM RLY CTRL HEADLIGHTS SYSTEM HOOD AJAR SWITCH HOOD STATUS A SIG HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK INTERIOR LIFTGATE AJAR SW SIG 1 LIGHTS SYSTEM LOGIC LR DR LCK MTR STATUS LT GRN WIRE PASS DR LCK SW LCK CTRL PASS DR LCK SW UNLCK CTRL PASSENGER DOOR LOCK SWITCH PASSENGER WINDOW MOTOR PPL REAR COMPARTMENT LID LATCH RED/BRN WIRE RED/YEL WIRE REMOTE CONTROL DOOR LOCK RECEIVER REMOTE FUNCTION ACTR CTRL REMOTE FUNCTION ACTR RECEIVE SIG REMOTE FUNCTION ACTR TRANSMIT SIG GND RF DR AJAR RR DR LCK MTR STATUS RUN/CRANK IGN 1 VOLT SECURITY IND CTRL SERIAL DATA (-) (1) SIG SW SIG VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE YEL/VIO WIRE

BATTERY POSITIVE VOLT BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BUS 2 COMPUTER DATA LINES SYSTEM CUSHION IND DRIVER SEAT CUSHION SWITCH DRIVER SEAT HEAT SWITCH DRIVER VENTILATED SEAT SWITCH DRV HEATED BACK NTC SIG FUSE 21 FUSE 22 GRN/BLU WIRE GRN/VIO WIRE GRY WIRE GRY/GRN WIRE HEAT IND HOT AT ALL TIMES IND INTERCONNECT LEFT REAR BACK SEAT HEATING ELEMENT LEFT REAR CUSHION SEAT HEATING ELEMENT LINEAR LOCAL INTERCONNECT NETWORK BUS 2 LOGIC LR CUSHION CLIMATE NTC RETURN LR HEATED SEAT CUSHION ELEMENT RETURN LR SEAT CLIMATE NTC RETURN LR SEAT CLIMATE NTC SIG MEDIUM NCA WIRE NETWORK ORG/BRN WIRE ORG/VIO WIRE PASS HEATED BACK NTC SIG PASS HEATED SEAT NTC SIG PASSENGER PASSENGER SEAT CUSHION SWITCH PASSENGER SEAT HEAT SWITCH PASSENGER VENTILATED SEAT SWITCH PPL PPL LR HEATED SEAT CUSHION ELEMENT SPLY VOLT REAR BODY FUSE BLOCK REAR SEAT HEATING CONTROL MODULE RED/WHT WIRE RED/YEL WIRE RIGHT REAR BACK SEAT HEATING ELEMENT RIGHT REAR CUSHION SEAT HEATING ELEMENT RR CUSHION CLIMATE NTC RETURN RR HEATED SEAT CUSHION ELEMENT RETURN RR HEATED SEAT CUSHION ELEMENT SPLY CTRL RR SEAT CLIMATE NTC RETURN SEAT HEAT SEAT HEAT IND SEAT IND SEAT) VENTILATION VIO/WHT WIRE WHT WIRE YEL WIRE

BLK WIRE BLK/ORG WIRE BRN/ORG WIRE BRN/WHT WIRE DK BLU WIRE DK GRN/ORG WIRE DRIVER SEAT BELT ANCHOR PRETENSIONER DRIVER SEAT BELT RETRACTOR PRETENSIONER DRIVER SEAT BELT SWITCH DRIVER SEAT BELT BUCKLE DRIVER SEAT SIDE AIR BAG DRV ANCHOR PRETEN LO CTRL DRV SEAT BELT LO REF DRV SEAT BELT SWITCH SIG DRV SEAT HI CTRL DRV SEAT LO CTRL DRV SIDE IMPACT MOD HI CTRL DRV SIDE IMPACT MOD LO CTRL GRN/ORG WIRE GRY/ORG WIRE HOT AT ALL TIMES INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE LEFT REAR SEAT SIDE AIR BAG LF DISCRIMINATING SENS SIG LF HEAD MOD HI CTRL LF HEAD MOD LO CTRL LF SIDE IMPACT MOD LO REF LF SIDE IMPACT MOD SIG LF SNSR LO REF LH MID SIDE IMPACT MOD LO REF LH MID SIDE IMPACT MOD SIG LR SIDE IMPACT SPLY VOLT NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/GRY WIRE ORG/VIO WIRE ORG/WHT WIRE ORG/YEL WIRE PASS ANCHOR PRETEN HI CTRL PASS ANCHOR PRETEN LOW CTRL PASS SEAT BELT LO REF PASS SEAT BELT REMINDER SIG PASS SEAT BELT SWITCH SIG PASS SEAT HI CTRL PASS SEAT LO CTRL PASS SIDE IMPACT MOD HI CTRL PASS SIDE IMPACT MOD LO CTRL PASSENGER PRESENCE SENSOR PASSENGER SEAT BELT BUCKLE PASSENGER SEAT BELT SWITCH RED/DK BLU WIRE RF DISCRIMINATING SENS SIG RF HEAD HI CTRL RF HEAD LO CTRL RF SIDE IMPACT MOD LO REF RF SIDE IMPACT MOD SIG RF SNSR LO REF RH MID SIDE IMPACT MOD LO REF RH MID SIDE IMPACT MOD SIG RIGHT REAR SEAT SIDE AIR BAG RIGHT ROOF RAIL AIR BAG (RIGHT EDGE OF ROOF, ABOVE DOOR OPENINGS) SADS FUSE SHORTING BAR UNDERHOOD FUSE BLOCK VIO/ORG WIRE WHT/ORG WIRE YEL/ORG WIRE

AIR BAG IND AIR BAG OFF IND AIR BAG ON IND BLK WIRE BLU WIRE BRN/ORG WIRE COMPUTER DATA LINES SYSTEM DK BLU/YEL WIRE DRIVER KNEE AIR BAG DRV KNEE MOD HI CTRL DRV KNEE MOD LO CTRL FRONT OVERHEAD CONSOLE ASSEMBLY GRN WIRE GRY WIRE GRY/LT GRN WIRE GRY/ORG WIRE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT CLUSTER LO REF LO SPD GMLAN LOGIC LOW SPD GMLAN SERIAL DATA LOW SPEED GMLAN SERIAL DATA LT GRN WIRE MOD STAGE 1 HI MOD STAGE 1 LO MOD STAGE 2 HI MOD STAGE 2 LO ORG/ WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE ORG/WHT WIRE PASS KNEE MOD LO CTRL PASS STAGE 1 HI PASS STAGE 1 LO PASS STAGE 2 HI PASS STAGE 2 LO PASSENGER AIR BAG DISABLED INDICATOR PASSENGER KNEE AIR BAG PASSENGER PRESENCE MODULE PASSENGER SEAT BELT TENSION SENSOR RED WIRE RED/DK BLU WIRE RED/GRN WIRE SEAT BELT IND SEAT BELT IND PASS AIR BAG ON IND PASS AIR BAG OFF IND SEAT BELT ON IND SENS SIG SERIAL DATA SHORTING BAR STEERING WHEEL AIR BAG COIL VIO WIRE VIO/WHT WIRE WHT WIRE WHT/DK BLU WIRE WHT/ORG WIRE YEL WIRE YEL/ORG WIRE

AUTO BATT POS VOLT BLK WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRAKE WARNING IND COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK BLU WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER INFORMATION CENTER DISPLAY FRONT OVERHEAD CONSOLE ASSEMBLY FUSE 18 GRN WIRE GROUND GRY WIRE GRY/LT GRN WIRE HDLP OFF SIG CTRL HDLP SW ON SIG HDLP SW PARK LAMP SIG HEAD HEADLAMP SWITCH HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LOGIC LOW SPD GMLAN SER DATA 2 LR DR AJAR SW SIG OFF OFF HEAD PARK PARK AUTO PASSENGER AIR BAG DISABLED INDICATOR PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR RED/GRY WIRE RF DR AJAR SW SIG SEAT BELT IND SEAT BELT ON IND TIRE PRESSURE IND VIO WIRE VIO/WHT WIRE WHT WIRE