Buick LaCrosse II facelift (2013-2016) (left side of dash) body control module Wiring diagrams

11 12 IG MODE SW CTRL LOW REF 3 4 ACC VOLT RUN/CRANK 1 VOLT 307 3287 HEADLIGHTS SYSTEM HORNS SYSTEM 664 94 EXTERIOR LIGHTS SYSTEM WIPER/WASHER SYSTEM ACC IND ACCESSORY LED SIGNAL LIGHTING CONTROL SW SIG AMBIENT LIGHT SENSOR SIGNAL SW SIG ANTI-LOCK BRAKES SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS ANTI-LOCK BRAKES, CRUISE CONTROL SYSTEMS ANTI-THEFT SYSTEM HEADLIGHTS SYSTEM BATT RVC FUSE BATTERY POSITIVE VOLT BCM 1 BCM 4 BCM 2 FUSE FUSE FUSE BCM 3 FUSE BCM 6 FUSE BCM 7 FUSE (LOWER LEFT SIDE OF DASH) BCM 8 FUSE BLK WIRE BLK/BRN WIRE BLU WIRE BLU/YEL WIRE BRAKE APPLY SENSOR SIGNAL LED BACKLIGHT DIMMING CTRL BRN WIRE BRN/LT GRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/BLK WIRE DK BLU/WHT WIRE DOOR LOCKS, ANTI-THEFT SYSTEMS DRIVER DR LK SW LOCK SIG EXTERIOR LIGHTS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/LT GRN WIRE HAZARD SW TURN RIGHT SIG WINDSHIELD WASHER SW SIG HDLP SW FLASH TO PASS SIG HORN SWITCH SIGNAL HEADLAMP OFF SIG HEADLAMP SW ON SIG HAZARD LED DIMMING SIGNAL HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM TRANSMISSIONS SYSTEM HEADLIGHTS, INTERIOR LIGHTS SYSTEMS HOT AT ALL TIMES IGNITION KEY RESISTOR SIG IGNITION MODE SWITCH INSTRUMENT PANEL FUSE BLOCK INTERIOR LAMP DEFEAT SW SIG KEYLESS ENTRY CONTROL MODULE (RIGHT KICK PANEL) OFF/RUN/CRANK VOLT RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SHIFT INTERLOCK SYSTEM START IND UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/BLK WIRE VIO/YEL WIRE W/ KEYLESS ENGINE START WHT WIRE WINDSHIELD WIPER SW HI SIG WIPER/WASHER SYSTEM YEL WIRE

3 2 1 FAN SPD SIG 1 FAN SPD SIG 2 GROUND 5 4 BATT POS VOLT FAN SPD SNSR SUPPLY VOLT ACCESSORY WAKEUP AJAR SW SIG AUXILIARY/ ELECTRIC TRANSMISSION FLUID PUMP BATT POS VOLT BATT RVC FUSE BATTERY ENERGY CONTROL MODULE BLK WIRE BLK/BRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BPIM BATT FUSE BPIM IGN FUSE BRN/LT GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLANT TEMP SNSR SIG SNSR LOW REFERENCE CURRENT SNSR LOW CURRENT SNSR SIG CURRENT SNSR SPLY DK BLU WIRE DK BLU/GRY WIRE FAN SPEED SNSR SUPPLY VOLT BATT POSITIVE VOLTAGE SERIAL DATA (+) SERIAL DATA (+) FROM HYBRID/ EV BATTERY SECTION 2 (DIAGRAM 4 OF 4) GRN WIRE GRY WIRE GRY/VIO WIRE GRY/YEL WIRE HIGH SER DATA HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED HYBRID/EV BATTERY PACK (RIGHT SIDE OF LUGGAGE COMPT) HYBRID/EV BATTERY PACK CABLE COVER HYBRID/EV BATTERY PACK CURRENT SENSOR HYBRID/EV POWERTRAIN CONTROL MODULE STARTER/GENERATOR CONTROL MODULE LOGIC HYBRID/EV BATTERY PACK COOLING FAN LOW SER DATA LT GRN/VIO WIRE LT GRN/WHT WIRE MAIN CONTACTOR MGU CLT PMP FUSE NCA WIRE ORG/ WIRE P-P BLOWER FUSE PRE-CHARGE CONTACTOR RED WIRE RED/BLK WIRE RED/DK BLU WIRE RED/VIO WIRE RED/YEL WIRE REFERENCE RUN/CRANK IGN 1 SER DATA SERIAL DATA SERIAL DATA (+) SERIAL DATA (-) BATT POSITIVE VOLTAGE STARTER/ GENERATOR COOLANT PUMP RELAY STARTER/GENERAROR COOLANT TEMPERATURE SENSOR (RIGHT FRONT SIDE OF ENGINE COMPT) UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE VIO/WHT WIRE VIO/YEL WIRE WHT BLU/BLK WIRE WHT WIRE WHT/YEL WIRE YEL/GRN WIRE