Buick LaCrosse III (2016-2019) driver door latch assembly Wiring diagrams

BLK WIRE CENTER CONSOLE FLOOD LAMP COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER DISPLAY GRY WIRE GRY/BRN WIRE GRY/LT GRN WIRE INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL ACCENT LAMP LEFT REAR DOOR ACCENT LAMP LEFT REAR DOOR HANDLE FLOOD LAMP LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LOGIC LOGIC DRIVER WINDOW MOTOR LOW SPD GMLAN SER DATA 2 LR DR AJAR SW SIG MIDDLE INSTRUMENT PANEL ACCENT LAMP NCA WIRE RIGHT INSTRUMENT PANEL ACCENT LAMP RIGHT REAR DOOR ACCENT LAMP RIGHT REAR DOOR HANDLE FLOOD LAMP WHT/BRN WIRE WHT/YEL WIRE

BLK WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK BLU WIRE DK BLU/VIO WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DOOR AJAR IND DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER DISPLAY DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH ENGINE CONTROL MODULE GRY WIRE GRY/LT GRN WIRE HOOD AJAR SWITCH HOOD STATUS A SIG INSTRUMENT CLUSTER LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LO SPD GMLAN SERIAL DATA 2 LOGIC LOGIC DRIVER WINDOW MOTOR LR DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR PPL RF DR AJAR RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SECURITY IND SERIAL DATA (-) (1) STATUS SIG SW SIG UNLOCK SIG VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE

BLK WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DC DC BATT 2/AWD FUSE DK BLU/BLK WIRE DK BLU/VIO WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH GRY WIRE HOT AT ALL TIMES LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LOGIC LOGIC DRIVER WINDOW MOTOR LR DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY POSITIVE VOLT POWER SUPPLY TRANSFORMER RED/DK BLU WIRE RED/YEL WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SERIAL DATA (+) (3) SPLY VOLT 1 STATUS SIG SW SIG UNDERHOOD FUSE BLOCK UNLOCK SIG VIO WIRE VIO/BLK WIRE VIO/YEL WIRE W/ START/STOP SYSTEM WHT WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE

BLK WIRE BLU WIRE DRIVER DOOR ACCENT LAMP DRIVER DOOR COURTESY LAMP DRIVER DOOR HANDLE FLOOD LAMP DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH DRIVER DOOR PULL HANDLE FLOOD LAMP DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER EXTERIOR DOOR HANDLE SWITCH DRIVER OUTSIDE REAR VIEW MIRROR DRIVER OUTSIDE REAR VIEW MIRROR COURTESY LAMP DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER WINDOW/ OUTSIDE REAR VIEW MIRROR SWITCH INTERIOR REAR COMPARTMENT LID UNLATCH SWITCH LEFT REAR DOOR ACCENT LAMP LEFT REAR DOOR HANDLE FLOOD LAMP LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LEFT REAR EXTERIOR DOOR HANDLE SWITCH LEFT REAR WINDOW SWITCH LEFT TURN SIGNAL REPEATER LAMP PASSENGER DOOR ACCENT LAMP PASSENGER DOOR COURTESY LAMP PASSENGER DOOR HANDLE FLOOD LAMP PASSENGER DOOR LATCH ASSEMBLY PASSENGER DOOR LOCK SWITCH PASSENGER DOOR PULL HANDLE FLOOD LAMP PASSENGER EXTERIOR DOOR HANDLE ASSEMBLY PASSENGER EXTERIOR DOOR HANDLE SWITCH PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR COURTESY LAMP PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER WINDOW SWITCH RIGHT REAR DOOR ACCENT LAMP RIGHT REAR DOOR HANDLE FLOOD LAMP RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR EXTERIOR DOOR HANDLE ASSEMBLY RIGHT REAR EXTERIOR DOOR HANDLE SWITCH RIGHT REAR WINDOW SWITCH RIGHT TURN SIGNAL REPEATER LAMP W/ MEMORY W/O MEMORY

"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

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 BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK BLU WIRE DK BLU/VIO WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DOOR AJAR IND DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER DISPLAY DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH ENGINE CONTROL MODULE GRY WIRE GRY/LT GRN WIRE HOOD AJAR SWITCH HOOD STATUS A SIG INSTRUMENT CLUSTER LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LO SPD GMLAN SERIAL DATA 2 LOGIC LOGIC DRIVER WINDOW MOTOR LR DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR PPL RF DR AJAR RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SECURITY IND SERIAL DATA (-) (1) STATUS SIG SW SIG UNLOCK SIG VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE

BLK WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DC DC BATT 2/AWD FUSE DK BLU/BLK WIRE DK BLU/VIO WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH GRY WIRE HOT AT ALL TIMES LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LOGIC LOGIC DRIVER WINDOW MOTOR LR DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY POSITIVE VOLT POWER SUPPLY TRANSFORMER RED/DK BLU WIRE RED/YEL WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SERIAL DATA (+) (3) SPLY VOLT 1 STATUS SIG SW SIG UNDERHOOD FUSE BLOCK UNLOCK SIG VIO WIRE VIO/BLK WIRE VIO/YEL WIRE W/ START/STOP SYSTEM WHT WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE

BLK WIRE BLK/ORG WIRE BLU/BLK WIRE BLU/VIO WIRE BRAKE FLUID LEVEL SWITCH BRK FLUID LEVEL SENS SIG BRN WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK BLU WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER SEAT BELT BUCKLE DRIVER SEAT BELT SWITCH DRIVER WINDOW MOTOR DRV SEAT BELT LOW REF DRV SEAT BELT SW SIG ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) GRY WIRE GRY/RED WIRE HI SPD GMLAN SER DATA (+) 1 INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE LF DR AJAR SW SIG LOGIC LOW SPD GMLAN SER DATA LT GRN WIRE NCA WIRE ORG/BRN WIRE ORG/VIO WIRE 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 PASS SEAT BELT LOW REF PASS SEAT BELT SW SIG PASSENGER SEAT BELT BUCKLE PASSENGER SEAT BELT SWITCH PRK BRK SW SPLY VOLT RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SW SIG SEAT BELT IND PASS AIR BAG SUPPLEMENTAL RESTRAINTS SYSTEM VIO/WHT WIRE WHT WIRE YEL WIRE YEL/RED WIRE