Buick LaCrosse II (2009-2013) (front of front passenger's door sill) Wiring diagrams

1 2 3 4 5 6 POS VOLT GND VOLT AJAR SW SIG BATT FUSE BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/LT GRN WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU/BLK WIRE DK BLU/WHT WIRE GRN WIRE GRN/GRY WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGNITION MODE SWITCH KEYLESS ENTRY CONTROL MODULE (RIGHT KICK PANEL) LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LOW REF (7) SIG (6) LOW REF (6) SIG (8) LOW REF (8 SIG (7) LT GRN WIRE LT GRN/BLK WIRE MTR FUSE WHEELHOUSE) NETWORK BUS 4 PASSENGER DOOR LATCH ASSEMBLY POS VOLT GND PPL PPL REAR BODY FUSE BLOCK (ON LEFT REAR RED/DK BLU WIRE RED/WHT WIRE RIGHT REAR DOOR LATCH ASSEMBLY RR LATCH CTRL LR LATCH CTRL PASS DR LATCH CTRL DRV DR LATCH CTRL RR UNLATCH CTRL LR UNLATCH CTRL PASS DR UNLATCH CTRL DRV DR UNLATCH CTRL SERIAL DATA SW MODE CTRL LOW REF VIO/BLK WIRE VIO/DK BLU WIRE VIO/YEL WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL/BLK WIRE

BATTERY BLK WIRE BODY CONTROL MODULE BRAKE BOOSTER PUMP MOTOR RELAY BRN WIRE COOLING FAN RELAY DOOR LOCK RELAY GRY/BLU WIRE HOOD AJAR SWITCH HORN ASSEMBLY IGNITION COIL 5 IGNITION COIL 6 IGNITION IGNITION COIL 1 COIL 3 IGNITION IGNITION COIL 2 COIL 4 IGNITION MAIN RELAY LEFT COOLING FAN DIODE LEFT DAYTIME RUNNING LAMP, LEFT FRONT FOG LAMP LEFT HEADLAMP LEFT HEADLAMP BALLAST LEFT LEFT PARK/ FRONT TURN SIDE SIGNAL MARKER LAMP LAMP LOW SPEED COOLING FAN DIODE PASSENGER PRESENCE (PASSENGER SEAT HARNESS, DETECTION MODULE APPROXIMATELY PASSENGER WINDOW MOTOR RESTRAINT SENSING, DIAGNOSTIC MODULE) RIGHT COOLING FAN DIODE RIGHT HEADLAMP RIGHT REAR WINDOW SWITCH RIGHT RIGHT PARK/ FRONT TURN SIDE SIGNAL MARKER LAMP LAMP W/ FRONT FOG LAMPS W/ FRONT W/O FRONT FOG LAMP FOG LAMP, HID, HID W/ HID W/ HID LEFT LEFT HIGH HEADLAMP BEAM HORIZONTAL SOLENOID MOTOR ACTUATOR W/ HID W/O HID W/O FRONT W/ FRONT FOG LAMPS FOG LAMPS W/O HID WINDSHIELD WASHER FLUID LEVER SENSOR WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY

10 1 DRV SEAT MTR CTRL PASS SEAT MTR CTRL BLK WIRE BLK/GRY WIRE BLK/RED WIRE BLU/BRN WIRE BRN/DK BLU WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DK BLU/BLK WIRE DRIVER BACK SEAT HEATING ELEMENT (DRIVER'S SEAT BACK) DRIVER COOLED SEAT SWITCH DRIVER CUSHION SEAT BLOWER MOTOR (UNDER CENTER OF DRIVER CUSHION) DRIVER CUSHION SEAT HEATING ELEMENT (DRIVER'S SEAT CUSHION) DRIVER HEATED SEAT SWITCH FUSE GMLAN SERIAL DATA GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/PPL WIRE GRY/BLK WIRE GRY/GRN WIRE HIGH HEAT HIGH HEAT IND HOT AT ALL TIMES HOT IN RUN OR START IGN IGNITION MAIN RELAY IND LO REF LOCAL NETWORK 10 LOGIC LOW HEAT IND MED HEAT MED HEAT IND PASS HTD SEAT ELEMENT VOLT PASS HTD SEAT NTC SIG PASSENGER BACK SEAT HEATING ELEMENT (FRONT PASSENGER'S SEAT BACK) PASSENGER COOLED SEAT SWITCH PASSENGER CUSHION SEAT BLOWER MOTOR (UNDER FRONT PASSENGER SEAT CUSHION) PASSENGER CUSHION SEAT HEATING ELEMENT (FRONT PASSENGER'S SEAT CUSHION) PASSENGER HEATED SEAT SWITCH PNK DRV HTD SEAT NTC SIG DRV HTD SEAT ELEMENT VOLT WIRE PNK WIRE RADIO/HVAC CONTROLS REAR BODY FUSE BLOCK (ON LEFT REAR WHEELHOUSE) RED/BLK WIRE RED/GRN WIRE RED/LT GRN WIRE RED/WHT WIRE SEAT MEMORY CONTROL MODULE (UNDER DRIVER'S SEAT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO/BLK WIRE VIO/WHT WIRE WHT WIRE WHT/GRY WIRE WHT/ORG WIRE WHT/PPL WIRE

BLK WIRE BLU WIRE BRN WIRE CIRCUIT BREAKER DN FWD DOWN FWD DOWN GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LT GRN WIRE ORG/ WIRE PASSENGER SEAT ADJUSTER SWITCH PASSENGER SEAT FRONT VERTICAL MOTOR (UNDER LEFT FRONT CORNER OF PASSENGER SEAT) PASSENGER SEAT RECLINE MOTOR (LOWER LEFT SIDE OF FRONT PASSENGER SEAT BACK) RECLINE FWD RECLINE RWD RED WIRE RWD WHT WIRE YEL WIRE

1 2 3 4 5 6 POS VOLT GND VOLT AJAR SW SIG BATT FUSE BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/LT GRN WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU/BLK WIRE DK BLU/WHT WIRE GRN WIRE GRN/GRY WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGNITION MODE SWITCH KEYLESS ENTRY CONTROL MODULE (RIGHT KICK PANEL) LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LOW REF (7) SIG (6) LOW REF (6) SIG (8) LOW REF (8 SIG (7) LT GRN WIRE LT GRN/BLK WIRE MTR FUSE WHEELHOUSE) NETWORK BUS 4 PASSENGER DOOR LATCH ASSEMBLY POS VOLT GND PPL PPL REAR BODY FUSE BLOCK (ON LEFT REAR RED/DK BLU WIRE RED/WHT WIRE RIGHT REAR DOOR LATCH ASSEMBLY RR LATCH CTRL LR LATCH CTRL PASS DR LATCH CTRL DRV DR LATCH CTRL RR UNLATCH CTRL LR UNLATCH CTRL PASS DR UNLATCH CTRL DRV DR UNLATCH CTRL SERIAL DATA SW MODE CTRL LOW REF VIO/BLK WIRE VIO/DK BLU WIRE VIO/YEL WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL/BLK WIRE

B(+) BLK WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/YEL WIRE BUS 4 COMPUTER DATA LINES SYSTEM DK BLU/GRY WIRE DK BLU/VIO WIRE DK GRN WIRE DOOR LOCKS SYSTEM DOWN DRIVER WINDOW MOTOR (DRIVER'S DOOR) EXPRESS FUSE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT REAR WINDOW MOTOR (LEFT REAR DOOR) LEFT REAR WINDOW SWITCH LF UP SIG LOCK OUT BUS 3 SWITCH LOGIC LOGIC DRIVER WINDOW SWITCH LR DOWN CTRL LR DR AJAR SW SIG LR UP CTRL LT GRN/BLK WIRE LT GRN/VIO WIRE LT GRN/WHT WIRE NETWORK BUS 3 NETWORK BUS 4 PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) PASSENGER WINDOW SWITCH RED/DK BLU WIRE RED/VIO WIRE RED/WHT WIRE RF DOWN SIG RF DR AJAR SW SIG RF EXPRESS SIG RF UP SIG RIGHT FRONT WINDOW B+ SWITCH RIGHT REAR WINDOW MOTOR (RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH RR DOWN CTRL RR UP CTRL UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) UNLCK SIG VIO/GRY WIRE W/ MEMORY W/O MEMORY WHT/VIO WIRE YEL/BLK WIRE YEL/BLU WIRE

AIR BAG IND AIR BAG ON IND SEAT BELT ON IND BEN/ORG WIRE BETWEEN FOLLOWING PINS: 1-2, 3-4, 5-6, 7-8) BLK WIRE BLK/OEG WIRE BLK/ORG WIRE BRN WIRE BRN/ORG WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE FUSE GRN WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/ORG WIRE HOT AT ALL TIMES HOT IN ON OR START IGN 1 VOLT INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (BELOW CENTER CONSOLE) INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) INSTRUMENT PANEL MULTI-FUNCTION SWITCH 1 LEFT FRONT IMPACT SENSOR (LEFT SIDE OF CROSSMEMBER) LO SPD GMLAN LOGIC LOW SPD GMLAN SERIAL DATA LOW SPEED GMLAN SERIAL DATA NCA WIRE ORG/ WIRE ORG/LT GRN WIRE ORG/VIO WIRE ORG/WHT WIRE ORG/YEL WIRE PASS AIR BAG ON IND PASS AIR BAG OFF IND PASSENGER AIR BAG OFF IND PASSENGER INSTRUMENT PANEL AIR BAG PASSENGER PRESENCE DETECTION MODULE (IF EQUIPPED) (UNDER FRONT PASSENGER'S SEAT) PNK WIRE RED WIRE RED/WHT WIRE RIGHT FRONT IMPACT SENSOR (RIGHT SIDE OF CROSSMEMBER) SEAT BELT IND SHORTING BAR STEERING WHEEL AIR BAG STEERING WHEEL AIR BAG COIL TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/ORG WIRE YEL WIRE YEL/BRN WIRE YEL/ORG WIRE