Buick LaCrosse II facelift (2013-2016) battery fuse block (top of battery) Wiring diagrams

20 26 B+ GROUND BATTERY BATTERY CURRENT SENSOR (IN FRONT OF BATTERY) BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BLK/VIO WIRE BLU/VIO WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE CHARGE IND CHARGE IND CTRL COMPUTER DATA LINES SYSTEM CURRENT SENSOR SIG CURRENT SENSOR SUPPLY VOLTAGE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FUSE 6 GENERATOR GENERATOR FIELD DUTY CYCLE SIG GMLAN SERIAL DATA GRN WIRE GRY WIRE HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) FUSE 69 INSTRUMENT CLUSTER LOGIC LOW REF RED WIRE RED/YEL WIRE SERIAL DATA STARTER MOTOR VIO/YEL WIRE WHT/YEL WIRE

1 2 3 4 5 6 DATA (-) DATA (-) DATA (+) DATA (+) VOLT GND 1 2 BATTERY GND ANTI-LOCK BRAKES SYSTEM AUTOMATIC TRANSMISSION ASSEMBLY BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA (+) DATA (-) SPLY VOLT DK BLU WIRE DK BLU/YEL WIRE DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRN/BRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC LT GRN WIRE POWER STEERING CONTROL MODULE (LOWER LEFT SIDE OF DASH) POWER STEERING MOTOR POWER STEERING SHAFT TORQUE SENSOR RED/YEL WIRE SENS SIG SENS RTN STEERING ANGLE SENSOR (BASE OF STEERING COLUMN) SYSTEM TRANSMISSION CONTROL MODULE (TCM) 2.4L 3.6L TRANSMISSION OUTPUT SHAFT SPEED SENSOR W/ ADAPTIVE CRUISE CONTROL WHT WIRE WHT/DK BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 DATA (-) DATA (-) DATA (+) DATA (+) VOLT GND 1 2 GND BATTERY 2.4L 3.6L 2500 2500 2501 2501 COMPUTER DATA LINES 9 8 17 DATA + DATA - SPLY VOLT ANTI-LOCK BRAKES SYSTEM AUTOMATIC TRANSMISSION ASSEMBLY BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRN/BRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC LT GRN WIRE POWER STEERING CONTROL MODULE (LOWER LEFT SIDE OF DASH) POWER STEERING MOTOR (ON STEERING GEAR) POWER STEERING SHAFT TORQUE SENSOR RED/YEL WIRE SENS SIG SENS RTN STEERING ANGLE SENSOR (BASE OF STEERING COLUMN) SYSTEM TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION OUTPUT SHAFT SPEED SENSOR W/ ADAPTIVE CRUISE CONTROL WHT WIRE WHT/DK BLU WIRE YEL WIRE YEL/BLK WIRE

2500 2501 1134 7684 COMPUTER DATA LINES SYSTEM BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BRN WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DIMMER SWITCH DRIVER INFORMATION CENTER DISPLAY FOG LAMP SWITCH FRONT FOG LAMP IND FUSE GRN WIRE GROUND GRY WIRE GRY/RED WIRE HEAD PARK AUTO HEADLAMP SWITCH HIGH BEAM LAMP IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN INSTRUMENT CLUSTER LEFT FRONT FOG LAMP LOGIC LOW SPD GMLAN SER DATA LT GRN WIRE MIL IGN OFF PARK BRAKE CONTROL SWITCH PARK BRK APPLY SW SIG PARK BRK RELEASE SW SIG PARK BRK RELEASE SW VOL REF PARK BRK SW SPLY VOLT PARKING BRAKE CONTROL MODULE (BEHIND LEFT REAR WHEEL LINER) RED WIRE RIGHT FRONT FOG LAMP UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/GRY WIRE WHT WIRE WHT/BRN WIRE YEL WIRE YEL/RED WIRE

BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/GRY WIRE BRN/WHT WIRE FUSE 5 GRN/WHT WIRE GROUND DISTRIBUTION SYSTEM PNK WIRE HORN ASSEMBLY (RIGHT FRONT OF VEHICLE) HORN FUSE HORN RELAY HORN RLY CTRL HORN SW SIG HORN SWITCH HOT AT ALL TIMES NCA WIRE PNK PNK WIRE PNK WIRE RED WIRE RIGHT STEERING WHEEL CONTROLS SWITCH STEERING WHEEL AIR BAG COIL UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY)

2.4L 3.6L ABS PUMP FUSE ABS WDO FRT VALVE FUSE FUSE AFL MTR FUSE AMPLIFIER FUSE AUDIO AMPLIFIER (IF EQUIPPED) AUXILIARY HEATER COOLANT PUMP RELAY BATT RVC FUSE BCM 6 FUSE BATTERY BATTERY FUSE BLOCK (TOP OF BATTERY) BODY CONTROL MODULE BPIM BATT VES FUSE BRAKE BOOSTER PUMP MOTOR RELAY BRK VAC PUMP FUSE BRN WIRE CANN VENT FUSE CHASSIS CONTROL MODULE CONTROL SOLENOID VALVE ASSEMBLY AUTOMATIC TRANSMISSION ASSEMBLY ECM BATT FUSE ELECTRONIC BRAKE CONTROL MODULE ELECTRONIC DRIVER BRAKE WINDOW CONTROL MOTOR MODULE ENGINE CONTROL MODULE EPB FUSE EVAPORATIVE EMISSION VENT SOLENOID VALVE FRONT SEAT HEATING CONTROL MODULE FSCM FUSE FUEL PUMP DRIVER CONTROL MODULE FUSE FUSE 2 FUSE 3 FUSE 4 FUSE 5 FUSE 6 GENERATOR GRN WIRE GRY WIRE HEADLAMP CONTROL MODULE (IF EQUIPPED) HTD ST DR FUSE KEYLESS ENTRY CONTROL MODULE LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP HORIZONTAL MOTOR MEM ST FUSE MGU CLT PMP FUSE PARKING BRAKE CONTROL MODULE PASSENGER LEFT REAR WINDOW WINDOW SWITCH MOTOR PEPS FUSE POWER STEERING CONTROL MODULE (W/ BELT DRIVE) POWER STEERING CONTROL MODULE (W/ VARIABLE EFFORT) POWER STEERING CONTROL MODULE (W/O VARIABLE EFFORT OR BELT DRIVE) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP HORIZONTAL MOTOR RIGHT REAR WINDOW SWITCH SEAT MEMORY CONTROL MODULE STARTER FUSE STARTER MOTOR STARTER RELAY STARTER/GENERATOR CONTROL MODULE HYBRID/EV BATTERY PACK SUNROOF CONTROL MODULE (IF EQUIPPED) SUNROOF FUSE SUNROOF SUNSHADE MOTOR MODULE (IF EQUIPPED) TCM BATT FUSE TO IGNITION MAIN RELAY (DIAGRAM 2 OF 5) AFL BATT FUSE TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 2 OF 5) TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 5) TRANSMISSION CONTROL MODULE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO RED/ WIRE W/ FRONT ACTIVE GRILLE SHUTTERS W/O FRONT ACTIVE GRILLE SHUTTERS W/ PASSIVE KEYLESS ENTRY W/ POWER W/O POWER STEERING STEERING CONTROL CONTROL WDO RR FUSE

10 13 20 25 WIPER SW LO REF WIPER SW LO SIG WIPER SW HI SIG WASHER SW SIG 16 14 COIL SPLY VOLT WASHER RLY CTRL 23 24 SERIAL DATA (-) SERIAL DATA (+) 2501 2500 COMPUTER DATA LINES SYSTEM BATT POSITIVE VOLT BATTERY FUSE BLOCK (TOP OF BATTERY) BCM 6 FUSE BLK WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/GRY WIRE BRN/LT GRN WIRE COMPUTER DATA LINES SYSTEM DELAY SWITCH DK BLU WIRE DRIVER INFORMATION CENTER DISPLAY FRT WIPER FUSE FUSE 5 GRY WIRE GRY/VIO WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT STRUT TOWER) LO SPD GMLAN SERIAL DATA LO WASHER FLUID IND CTRL LOGIC LT GRN WIRE MIST OFF PARK SW SIGNAL RED WIRE RED/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE WASH FRT FUSE WASHER SWITCH WHT WIRE WHT/VIO WIRE WINDSHIELD WASHER FLUID LEVEL IND WINDSHIELD WASHER FLUID LEVEL SWITCH (IN WASHER FLUID RESERVOIR) WINDSHIELD WASHER PUMP (IN WASHER FLUID RESERVOIR) WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER MOTOR (LEFT REAR OF ENGINE COMPT) WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WINDSHIELD WIPER/WASHER SWITCH WIPER SW HI SIG WIPER SWITCH YEL WIRE YEL/BRN WIRE