Buick LaCrosse II (2009-2013) Power distribution circuit

3.0L, 3.6L 2.4L BATTERY BATTERY FUSE BLOCK (TOP OF BATTERY) BODY CONTROL MODULE BRAKE BOOSTER PUMP MOTOR RELAY CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DRIVER PASSENGER WINDOW WINDOW MOTOR MOTOR DRIVER SEAT POWER LUMBAR STEERING SUPPORT CONTROL SWITCH MODULE (IF EQUIPPED) ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROL MODULE EVAPORATIVE EMISSION VENT SOLENOID VALVE FUEL AUDIO PUMP AMPLIFIER CONTROL (PREMIUM MODULE AUDIO) FUSE FUSE 1 FUSE 2 FUSE FUSE GENERATOR HEADLAMP CONTROL MODULE (IF EQUIPPED) LEFT HEADLAMP LEFT HEADLAMP HORIZONTAL MOTOR (IF EQUIPPED) LEFT REAR WINDOW SWITCH LT GRN WIRE PARKING ELECTRONIC BRAKE BRAKE CONTROL CONTROL MODULE MODULE POWER STEERING CONTROL MODULE (IF EQUIPPED) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/DK BLU WIRE RED/DK GRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEADLAMP RIGHT HEADLAMP HORIZONTAL MOTOR (IF EQUIPPED) RIGHT REAR WINDOW SWITCH SEAT SEAT HEATING MEMORY CONTROL CONTROL MODULE MODULE STARTER MOTOR STARTER RELAY SUNROOF CONTROL MODULE (IF EQUIPPED) SUNROOF SUNSHADE MOTOR MODULE (IF EQUIPPED) TO IGNITION MAIN RELAY (DIAGRAM 2 OF 5) FUSE TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 2 OF 5) TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 5) TO REAR BODY FUSE BLOCK (DIAGRAM 4 OF 5) UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) W/ W/O MEMORY MEMORY

3 OF 5) FUSE 3.0L, 3.6L 2.4L 3.6L 5 OF 5) AIR QUALITY SENSOR (IF EQUIPPED) BLK WIRE BODY CONTROL MODULE BRN WIRE CONTROL SOLENOID VALVE ASSEMBLY COOLING FAN LOW SPEED RELAY DK BLU WIRE ENGINE CONTROLS IGNITION RELAY ENGINE HVAC CONTROL CONTROL MODULE MODULE FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 5) FROM ENGINE CONTROL MODULE RELAY (DIAGRAM 2 OF 5) FRONT FOG LAMP RELAY FUEL PUMP CONTROL MODULE FUSE FUSE (DIAGRAM FUSE FUSE FUSE FUSE FUSE GRY WIRE HEADLAMP HIGH BEAM RELAY HORN RELAY IGNITION MAIN RELAY INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INFO MULTIMEDIA DISPLAY PLAYER MODULE INTERFACE MODULE INSIDE REARVIEW MIRROR INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LT GRN/VIO WIRE MASS AIR FLOW SENSOR/INTAKE AIR TEMPERATURE SENSOR RADIO/ HVAC CONTROLS (IF EQUIPPED) REARVIEW CAMERA RED WIRE RED/BLK WIRE RED/BRN WIRE RED/DK BLU WIRE RED/DK GRN WIRE RED/VIO WIRE RED/WHT WIRE SECONDARY COOLING FAN AIR RIGHT INJECTION HIGH SPEED PUMP RELAY RELAY TO BODY CONTROL MODULE (DIAGRAM 5 OF 5) TO IGNITION DATA LINK SWITCH CONNECTOR (DIAGRAM 5 OF 5) TO WINDSHIELD WASHER PUMP RELAY (DIAGRAM 2 OF 5) UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/LT GRN WIRE VIO/WHT WIRE W/ AUDIO INTERFACE W/ REAR VIEW CAMERA W/ SIDE OBSTACLE DETECTION, SENSOR INDICATOR (NOT USED) W/O REAR VIEW CAMERA WHT WIRE WINDSHIELD WINDSHIELD WIPER WASHER RELAY PUMP RELAY WINDSHIELD WIPER SPEED CONTROL RELAY YEL WIRE

ACCESSORY DC/AC POWER INVERTER MODULE ACCESSORY POWER RECEPTACLE ACCESSORY RELAY B+ GND BLK WIRE BLOWER MOTOR CONTROL MODULE BODY CONTROL MODULE BRN/DK BLU WIRE CENTER CONTROL 1 ACCESSORY POWER RECEPTACLE CENTER CONTROL 2 ACCESSORY POWER RECEPTACLE CIRCUIT BREAKER DK BLU/WHT WIRE DK GRN/WHT WIRE DRIVER SEAT SEAT ADJUSTER MEMORY SWITCH CONTROL MODULE FROM FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 5) FROM INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 2 OF 5) FUSE FUSE (DIAGRAM 2 OF 5) GND 120 VAC GRY WIRE GRY/GRN WIRE GRY/VIO WIRE INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) INVERTER CTRL PASSENGER SEAT ADJUSTER SWITCH RADIO REAR COMPARTMENT LID RELEASE RELAY RED WIRE RED/BLK WIRE RED/BRN WIRE RED/DK BLU WIRE RED/DK GRN WIRE RED/LT GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE TAN WIRE TAN/VIO WIRE TELEMATICS COMMUNICATIONS INTERFACE CONTROL MODULE (W/ ONSTAR) TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LEVER POSITION INDICATOR VIO WIRE W/O W/ MEMORY MEMORY

BLK WIRE BODY CONTROL MODULE BRN WIRE DRIVER DRIVER BACK CUSHION SEAT SEAT BLOWER BLOWER MOTOR ASSEMBLY DRIVER SEATBACK VIDEO DISPLAY FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 5) FROM IGNITION MAIN RELAY (DIAGRAM 4 OF 5) FUSE HTD WHL FUSE IGNITION IGNITION MAIN RELAY KEYLESS ENTRY CONTROL MODULE (IF EQUIPPED) LT GRN/VIO WIRE PASSENGER BACK SEAT BLOWER MOTOR PASSENGER CUSHION SEAT BLOWER MOTOR PASSENGER SEATBACK VIDEO DISPLAY PNK WIRE REAR BODY FUSE BLOCK (ON LEFT REAR WHEELHOUSE) REAR DIFFERENTIAL CLUTCH CONTROL MODULE REAR WINDOW SUNSHADE CONTROL MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/DK BLU WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RELAY RUN WIRE STEERING COLUMN FUSE HOLDER STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATING CONTROL MODULE (IF EQUIPPED) SUSPENSION CONTROL MODULE VIO WIRE VIO/BLK WIRE W/ CLIMATE CONTROL W/ DRIVER SEAT W/ HEATED STEERING WHEEL W/ PASSENGER SEAT W/ REAR SEAT ENTERTAINMENT W/O CLIMATE CONTROL

11 12 IGNITION MODE SW CTRL LOW REFERENCE 2.4L 3.0L, 3.6L ACC IND BLK WIRE BLK/BRN WIRE BODY CONTROL MODULE BRN WIRE CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE ENGINE CONTROL MODULE FROM INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 2 OF 5) FUSE FUSE IGNITION MODE SWITCH IGNITION SWITCH KEY-IN IGNITION SWITCH KEYLESS ENTRY CONTROL MODULE LEFT SIDE RIGHT SIDE OBJECT OBJECT SENSOR SENSOR (IF (IF EQUIPPED) EQUIPPED) LT GRN WIRE LT GRN/VIO WIRE LT GRN/YEL WIRE OFF OFF IND OUTSIDE PASSENGER REARVIEW WINDOW MIRROR SWITCH SWITCH PPL PPL (OR VIO/BLK) WIRE PPL (OR VIO/YEL) WIRE PPL PPL PPL PPL 3 4 ACC VOLT RUN/CRANK 1 VOLT RED WIRE RED/DK BLU WIRE RED/LT GRN WIRE RED/VIO WIRE RUN WIRE START IND UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/BLK WIRE VIO/YEL WIRE W/ KEYLESS ENGINE START W/ MEMORY W/ SUNSHADE W/O SUNSHADE WHT WIRE YEL WIRE