Buick LaCrosse II (2009-2013) Wiring diagram engine performance 3.6l vin d

BLK WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/VIO WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAMSHAFT POS EXHAUST SENS 2 CHARGE IND CTRL DK BLU WIRE DK BLU/GRY WIRE DK BLU/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR FUEL RAIL PRESSURE SENSOR (TOP OF ENGINE ON FUEL RAIL) GRY WIRE GRY/DK BLU WIRE GRY/RED WIRE IGN CTRL LO REF BANK 2 INSTRUMENT CLUSTER SYSTEM LT BLU WIRE LT GRN WIRE LT GRN/BRN WIRE LT GRN/DK BLU WIRE LT GRN/GRY WIRE LT GRN/WHT WIRE OIL PRESSURE SW SIG SENS LOW REF SENS LOW REF SENS LOW REF OIL PRESSURE SENS LOW REF SENS LOW REF STARTING/CHARGING SYSTEM TAN WIRE VIO/BLK WIRE VIO/BRN WIRE VIO/DK BLU WIRE VIO/GRY WIRE VIO/LT GRN WIRE WHT/LT GRN WIRE YEL WIRE YEL/DK BLU WIRE YEL/VIO WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE BRN/DK BLU WIRE BRN/LT GRN WIRE BRN/RED WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/GRY WIRE DK BLU/WHT WIRE FUEL TANK PRESSURE SENSOR GRY WIRE GRY/DK BLU WIRE GRY/RED WIRE IGNITION COIL 2 (RIGHT FRONT OF ENGINE ABOVE CYLINDER 2) IGNITION COIL 4 (CENTER FRONT OF ENGINE ABOVE CYLINDER 4) IGNITION COIL 6 (LEFT FRONT OF ENGINE ABOVE CYLINDER 6) LT GRN WIRE LT GRN/BRN WIRE LT GRN/DK BLU WIRE NCA WIRE PLUG SPARK SPARK PLUG VIO/BLK WIRE VIO/BRN WIRE VIO/DK BLU WIRE WHT WIRE YEL WIRE YEL/DK BLU WIRE YEL/RED WIRE YEL/VIO WIRE

BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRN WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLU/VIO WIRE BRN WIRE BRN/DK BLU WIRE BRN/LT GRN WIRE BRN/RED WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/GRY WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE GRY WIRE GRY/RED WIRE IGNITION COIL 1 (RIGHT REAR OF ENGINE ABOVE CYLINDER 1) IGNITION COIL 3 (CENTER REAR OF ENGINE ABOVE CYLINDER 3) IGNITION COIL 5 (LEFT REAR OF ENGINE ABOVE CYLINDER 5) INSTRUMENT CLUSTER SYSTEM LT GRN WIRE LT GRN/DK BLU WIRE NCA WIRE PLUG SPARK SPARK PLUG VIO/BLK WIRE VIO/DK BLU WIRE YEL WIRE YEL/DK BLU WIRE YEL/RED WIRE YEL/VIO WIRE

"CHECK ENGINE" IND CTRL BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/YEL WIRE BLU/BRN WIRE BRN WIRE BRN/DK BLU WIRE BRN/LT GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA BUS - DK BLU WIRE DK BLU/GRY WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE ECM (LEFT FRONT OF ENGINE COMPT) ECT SENS SIG ENGINE CONTROL MODULE FLP SENS SIG FUEL CTRL SHIELD FUEL PMP SPLY VOLT FUEL PUMP LO CTRL GRY WIRE GRY/WHT WIRE HI SIG BANK 1 SENS (1) HI SIG BANK 2 SENS 1 HI VOLT CTRL CYL 1 HI VOLT CTRL CYL 2 HI VOLT SPLY 1 HI VOLT SPLY 4 IGN 1 VOLT IGN CTRL (1) IGN CTRL (2) IGN CTRL (3) IGN CTRL (4) IGN CTRL (5) IGN CTRL (6) IGN CTRL REF BANK 1 KNOCK SENS 1 SIG KNOCK SENS 2 SIG KNOCK SENS REF (1) LO CTRL BANK 1 SENS (1) LO CTRL BANK 2 SENS 1 LO SIG BANK 2 SENS 1 LOW REF LOW REF 2 LOW SIG BANK 1 SENS (1) LT GRN/DK BLU WIRE LT GRN/GRY WIRE LT GRN/YEL WIRE MAIN RELAY SPLY (2) NCA WIRE PRIMARY RLY CTRL RED/VIO WIRE RELAY FUSED SPLY (3) SER DATA COMMU- NICATION ENABLE THROTTLE SENS REF THROTTLE SENS SIG (1) THROTTLE SENS SIG (2) VIO/BLK WIRE VIO/DK BLU WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/DK BLU WIRE WHT/GRY WIRE YEL WIRE YEL/DK BLU WIRE YEL/RED WIRE YEL/WHT WIRE

BATTERY FUSE BLOCK (TOP OF BATTERY) BLK/GRY WIRE BLK/LT GRN WIRE BLK/YEL WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU/WHT WIRE ENGINE CONTROLS IGNITION RELAY FUSE FUSE FUSE GRN WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR BANK 1 SENSOR 1 (REAR OF ENGINE IN BANK 1 EXHAUST MANIFOLD) HEATED OXYGEN SENSOR BANK 2 SENSOR 1 (REAR OF ENGINE IN BANK 2 EXHAUST MANIFOLD) HIGH PRESSURE FUEL PUMP (LEFT REAR OF ENGINE) HOT AT ALL TIMES IGN INSTRUMENT CLUSTER KNOCK SENSOR 1 (LEFT OF EXHAUST MANIFOLD) KNOCK SENSOR 2 (RIGHT OF STARTER) LOGIC LO SPD GMLAN SERIAL DATA LT GRN/GRY WIRE LT GRN/YEL WIRE MALFUNCTION IND RED WIRE RED/BLU WIRE RED/BRN WIRE RED/LT GRN WIRE RED/VIO WIRE UNDERHOOD FUSE BLOCK VIO/BLK WIRE VIO/DK BLU WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/GRY WIRE YEL WIRE YEL/RED WIRE YEL/WHT WIRE

A/C REFRIGERANT PRESSURE SENSOR (FRONT OF ENGINE COMPT, MOUNTED TO CONDENSER) ACCELERATOR PEDAL POSITION (APP) SENSOR (LEFT SIDE OF DASH) ACCESSORY WAKEUP SERIAL DATA GMLAN SERIAL DATA (+) APP LOW REFERENCE 1 APP SENS 1 SIG BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM 5 6 3 CRUISE CONTROL SYSTEM DK BLU WIRE DK BLU/LT GRN WIRE DK BLU/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) EVAP CANISTER VENT SOL CTRL HEATER LO CTRL BANK 2 SENS 2 FUEL LEVEL SENS LOW REF FUEL PUMP PRIMARY RELAY CTRL LOW REF FUEL LVL SENS SIG FUSE FUSE FUSE GRN WIRE GRY/WHT WIRE HI SPD COOLING FAN RELAY CTRL LO SPD COOLING FAN RLY CTRL APP LOW REF 2 HIGH SIGNAL BANK 1 SENSOR 2 A/C REFRIGERANT PRE SENS SIG HOT W/ IGNITION MAIN RELAY ENERGIZED IAT SENS SIG HI SIG BANK 2 SENSOR 2 CRUISE/ETC/TCC BRAKE SIGNAL INSTRUMENT CLUSTER SYSTEM LT BLU/BLK(OR DK BLU/WHT) WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/VIO WIRE LT GRN/WHT WIRE MAF SENS SIG PARK/NEUTRAL SIGNAL RED/BRN WIRE STARTING/ CHARGING SYSTEM TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO/BLK WIRE VIO/DK BLU WIRE VIO/GRY WIRE VIO/LT GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BRN WIRE WHT/DK BLU WIRE WHT/GRY WIRE WHT/RED DK BLU WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/DK BLU WIRE YEL/RED WIRE YEL/WHT WIRE