Buick LaCrosse II facelift (2013-2016) (body harness, 290 mm from breakout to chassis control module) Wiring diagrams

2500 2501 COMPUTER DATA LINES SYSTEM 7493 7494 COMPUTER DATA LINES SYSTEM A/C SENS SIG ACCELERATOR PEDAL POSITION SENSOR (LEFT SIDE OF DASH) APP SENS SIG 1 APP SIG BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CHECK ENG IND CTRL COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CRUISE CONTROL SYSTEM DK BLU WIRE DK BLU/BRN WIRE DK BLU/GRN WIRE DK BLU/GRY WIRE DK BLU/LT GRN WIRE DK BLU/WHT WIRE ENG RLY CTRL IGN 1 VOLT ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) EVAPORATIVE EMISSION VENT SOLENOID VALVE (UNDER LEFT REAR OF VEHICLE) FAN RLY CTRL FUEL LVL SEN SIG FUEL LVL SENS LO REF FUEL PRES SENS SIG FUEL PUMP FUEL PUMP RLY CTRL GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE HI SER DATA BUS (+) HI SER DATA BUS (-) IGN 1 VOLT B+ PDL POS LOW REF IGN STARTER RLY CTRL LEVEL SENSOR ASSEMBLY (IN FUEL TANK) LOW REF LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/VIO WIRE PDL POS LOW REF RED/BRN WIRE RED/GRN WIRE RED/LT GRN WIRE SNSR SIG SOLENOID CTRL SOLENOID CTRL SOLENOID CTRL CRUISE/ETC/TCC BRAKE SIG STARTING/CHARGING SYSTEM VIO/DK BLU WIRE VIO/GRY WIRE VIO/LT GRN WIRE VIO/YEL WIRE WAKE-UP SER DATA WHT WIRE WHT/DK BLU WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE YEL/WHT WIRE

37 18 19 (NOT USED) 5-VOLT REF 1 A/C REFRIGERANT PRE SNSR LO REF A/C COMPRESSOR CLUTCH RLY CTRL APP 5-VOLT REF 3 (2) APP SIG (2) A/C REFRIGERANT PRE SENS SIG ACCELERATOR PEDAL POSITION SENSOR (LEFT SIDE OF DASH) AIR CONDITIONING SYSTEM APP 5-VOLT REF 4 (1) APP SIG (1) APP LO REF (1) BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU/GRY WIRE BLU/WHT WIRE BRAKE POSITION SNSR SIG BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CHECK ENGINE INDICATOR CTRL COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM DK BLU WIRE DK BLU/GRN WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) ENGINE OIL ENGINE OIL PRESSURE IND LEVEL IND FUEL COMPOSITION SENSOR FUEL PUMP CTRL GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE HI SPEED COOLING FAN RLY CTRL IGN INSTRUMENT CLUSTER LEFT FRONT STRUT TOWER) LO SPD GMLAN SERIAL DATA LOGIC LOW REF FUEL TANK PRE SNSR SIG LT GRN WIRE MALFUNCTION IND PRIMARY FUEL LEVEL SNSR SIG FUEL LEVEL SNSR LO REF SECONDARY FUEL LEVEL SNSR SIG RED/BRN WIRE RUN/CRANK IGNITION 1 VOLT BATTERY POSITIVE VOLTAGE APP LO REF (2) SECONDARY FUEL LEVEL SENSOR (AWD) (TOP OF FUEL TANK) SENS SIG SENS SIG BAROMETRIC PRESSURE SNSR SIG SIG SUPPLY VOLT SENS GND VIO/DK BLU WIRE VIO/LT GRN WIRE WHT WIRE WHT/GRY WIRE WHT/RED WIRE YEL/RED WIRE YEL/WHT WIRE