Buick LaCrosse II facelift (2013-2016) battery Wiring diagrams

1 2 3 4 5 6 7 INTERIOR LAMP CONTROL BACKUP LAMP SPLY VOLT INADVERTENT POWER CTRL 1969 28 HEADLIGHTS SYSTEM HORNS SYSTEM 2500 2501 COMPUTER DATA LINES SYSTEM 3268 156 ANTI-THEFT SYSTEMS 5077 7541 STARTING/CHARGING SYSTEM EXTERIOR LIGHTS SYSTEM 544 860 HEADLIGHTS SYSTEM WIPER/WASHER SYSTEM 5797 6132 TRUNK, TAILGATE, FUEL DOORS SYSTEM COMPUTER DATA LINES SYSTEM 5911 3271 2150 294 1303 DOOR LOCKS, ANTI-THEFT SYSTEMS 5996 6817 EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM 6133 6134 COMPUTER DATA LINES SYSTEM 7553 737 SHIFT INTERLOCK SYSTEM INTERIOR LIGHTS SYSTEM ANTI-THEFT SYSTEM BATTERY BATTERY CURRENT SENSOR (IN FRONT OF BATTERY) BLK WIRE BLK/VIO WIRE BLU WIRE BLU/VIO WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/GRY WIRE BRN/LT GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CHILD SECURITY LCK MTR COURTESY LAMP SW SIG CHILD SECURITY LCK MTR SHIFT POSITION SIG CHILD SECURITY LOCK RLY CTRL DK BLU/WHT WIRE DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, ANTI-THEFT SYSTEMS 3269 5905 DRL RLY CTRL WINDSHIELD WIPER SW HI SIG FOG LAMP RELAY CONTROL LIFT GLASS/TRUNK RELEASE CTRL CRUISE/ETC/TCC BRAKE SIGNAL GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/LT GRN WIRE GRY/YEL WIRE HEADLAMP HIGH BEAM RLY CTRL HORN RLY CTRL HEADLAMP LOW BEAM RLY CTRL HEADLIGHTS SYSTEM HI SPEED GMLAN DATA BUS (+) HI SPEED GMLAN DATA BUS (-) HOT AT ALL TIMES IGNITION SWITCH INTERCONNECT NETWORK BUS 2 INTERCONNECT NETWORK BUS 3 INTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM KEY-IN IGNITION SWITCH LED AMBIENT LIGHTING CTRL 1 LOW REFERENCE STOP LAMP SPLY VOLT OFF RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RR CLOSURE HANDLE SW OPEN SIG INTERCONNECT NETWORK BUS 1 RUN WIRE SHIFT INTERLOCK SYSTEM SOLENOID CTRL TRUNK LAMP CONTROL STARTING/CHARGING SYSTEM STARTING/CHARGING SYSTEM COMPUTER DATA LINES SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/DK BLU WIRE

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

BATTERY BLK WIRE BRN WIRE BRN/VIO WIRE BRN/YEL WIRE DRIVER OUTSIDE REARVIEW MIRROR DRIVER OUTSIDE REARVIEW MIRROR GLASS HOT AT ALL TIMES FUSE FUSE BLOCK (TOP OF BATTERY) HTD MIR FUSE HVAC CONTROL MODULE LEFT REAR WINDOW DEFOGGER NOISE FILTER PASSENGER OUTSIDE REARVIEW MIRROR PASSENGER OUTSIDE REARVIEW MIRROR GLASS REAR DEFOGGER GRID REAR DEFOGGER IND REAR DEFOGGER RELAY REAR DEFOGGER RLY CTRL REAR DEFOGGER SWITCH LOGIC RED WIRE RIGHT REAR WINDOW DEFOGGER NOISE FILTER RR DEFOG FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY)

2.4L AUTOMATIC TRANSMISSION ASSEMBLY CONTROL SOLENOID VALVE ASSEMBLY BATTERY BATTERY CURRENT SENSOR BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE ELECTRIC/ AUXILIARY TRANSMISSION FLUID PUMP ENGINE CONTROL MODULE IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 IGNITION COIL 5 IGNITION COIL 6 LEFT FRONT STRUT TOWER) MASS AIR FLOW/INTAKE AIR TEMPERATURE SENSOR MULTI-FUNCTION INTAKE AIR SENSOR SECONDARY AIR INJECTION PUMP STARTER RELAY STARTER/ GENERATOR CONTROL MODULE W/ CALIFORNIA EMISSION SYSTEM WINDSHIELD WIPER MOTOR WINDSHIELD WIPER RELAY

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

2.4L AUTOMATIC TRANSMISSION ASSEMBLY AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH BATTERY BATTERY CURRENT SENSOR (IN FRONT OF BATTERY) BATTERY FUSE BLOCK FUSE 5 (TOP OF BATTERY) BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) CHARGING CIRCUIT COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) EXCEPT HYBRID HYBRID FUSE 12 FUSE 5 FUSE 6 GMLAN SERIAL DATA GRN WIRE GROUND DISTRIBUTION SYSTEM HOT W/ IGNITION MAIN RELAY ENERGIZED UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) IGN IGN VOLT IGNITION SWITCH LOCK PARK/NEUTRAL SIG (1) RED WIRE RUN WIRE SERIAL DATA STARTER MOTOR STARTER RELAY STARTER RELAY CTRL TRANSMISSION CONTROL MODULE VIO/GRY WIRE VIO/LT GRN WIRE VIO/YEL WIRE WHT WIRE WHT/GRY WIRE WHT/VIO WIRE YEL WIRE