Buick Regal V (2009-2013) left front of engine compt, under front of battery tray) Wiring diagrams

1850 1541 7574 7573 (OR 5486) 65 67 A/C COMPRESSOR SOLENOID VALVE (LEFT FRONT OF ENGINE) BLK WIRE BLOWER MTR SPD CTRL BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FAN HIGH SPEED RELAY COOLING FAN LOW SPEED RELAY COOLING FAN RELAY COOLING FAN SPEED CONTROL RELAY DEFOGGER SYSTEM FUSE FUSE 42 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HUMIDITY SENS SIG TWILIGHT SENTINEL DELAY SIG HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) INSIDE AIR TEMP SENS SIG HUMIDITY TEMP SENS SIG 5-VOLT REF INSIDE MOISTURE SENSOR (FRONT CENTER OF ROOF) LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LINEAR INTERCONNECT NETWORK BUS 9 LOGIC LOW REF OF ENGINE COMPT) REAR DEFOG RLY CTRL RED/BLU WIRE RED/WHT WIRE SOLAR SENS DRV SIG UNDERHOOD FUSE BLOCK (LEFT SIDE VIO/BLU WIRE VIO/BRN WIRE WINDSCREEN TEMP SENS SIG WINDSHIELD TEMPERATURE, YEL WIRE YEL/BLU WIRE YEL/VIO WIRE

24 8 SENS LO REF ENG TEMP SENS SIG 2501 2500 COMPUTER DATA LINES SYSTEM 40 39 GMLAN SERIAL DATA (-) GMLAN SERIAL DATA (+) 52 42 59 BATT + VOLT HI SPD FAN RLY CTRL LO SPD FAN RLY CTRL BLK WIRE BLK/WHT WIRE BLU WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FAN HIGH SPEED RELAY COOLING FAN LOW SPEED RELAY COOLING FAN RELAY COOLING FAN SPEED CONTROL 2 RELAY COOLING FAN SPEED CONTROL RELAY ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE SENSOR (RIGHT REAR OF ENGINE) FUSE FUSE 2 FUSE 42 FUSE 45 GRN WIRE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED INSTRUMENT CLUSTER LEFT COOLING FAN MEDIUM SPEED RELAY LEFT COOLING FAN MOTOR (BEHIND LEFT SIDE OF RADIATOR) LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LOGIC OF ENGINE COMPT) OF RADIATOR) RED/WHT WIRE RIGHT COOLING FAN MEDIUM SPEED RELAY RIGHT COOLING FAN MOTOR (BEHIND RIGHT SIDE OF RADIATOR) TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE UNDERHOOD RELAY BLOCK (MOUNTED ON LEFT FRONT RADIATOR SUPPORT) VIO/BLU WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

1850 1541 7574 7573 (OR 5486) 65 67 A/C COMPRESSOR SOLENOID VALVE (LEFT FRONT OF ENGINE) BLK WIRE BLK/GRN (OR GRN/BLK) WIRE BLK/GRN WIRE BLOWER MTR SPD CTRL BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM COOLING FAN LOW SPEED RELAY COOLING FAN SPEED CONTROL RELAY DEFOGGER SYSTEM DK BLU (OR BRN/YEL) WIRE DK BLU WIRE DK GRN (OR LT GRN/VIO) WIRE DK GRN WIRE FUSE 42 FUSE 45 FUSE 46 GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HUMIDITY SENS SIG TWILIGHT SENTINEL DELAY SIG HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) INSIDE AIR TEMP SENS SIG HUMIDITY TEMP SENS SIG 5-VOLT REF INSIDE MOISTURE SENSOR (FRONT CENTER OF ROOF) LEFT COOLING FAN HIGH SPEED RELAY LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LEFT FRONT STRUT TOWER) LINEAR INTERCONNECT NETWORK BUS 9 LOGIC LOW REF OF ENGINE COMPT) PNK WIRE REAR DEFOG RLY CTRL RED/BLU WIRE RED/WHT WIRE RED/YEL (OR WHT/BLU) WIRE RED/YEL WIRE RIGHT HEADLAMP ASSEMBLY SOLAR SENS DRV SIG TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE VIO/BRN WIRE WINDSCREEN TEMP SENS SIG WINDSHIELD TEMPERATURE, YEL/VIO WIRE

24 8 LO REF ENG TEMP SENS SIG 2501 2500 COMPUTER DATA LINES SYSTEM 40 39 GMLAN SERIAL DATA (-) GMLAN SERIAL DATA (+) BATT + VOLT LO SPD FAN RLY CTRL HI SPD FAN RLY CTRL BLK WIRE BLK/GRN (OR GRN/BLK) WIRE BLK/GRN WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM COOLING FAN LOW SPEED RELAY COOLING FAN SPEED CONTROL RELAY DK BLU (OR BRN/YEL) WIRE DK BLU WIRE DK GRN WIRE ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR (RIGHT REAR OF ENGINE) ENGINE LOGIC COOLANT TEMPERATURE GAUGE FUSE 2 FUSE 42 FUSE 45 FUSE 46 GRN WIRE GRN/VIO WIRE GRY WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED INSTRUMENT CLUSTER LEFT COOLING FAN HIGH SPEED RELAY LEFT COOLING FAN MOTOR (BEHIND LEFT SIDE OF RADIATOR) LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) OF ENGINE COMPT) RED/GRN WIRE RED/WHT WIRE RED/YEL (OR WHT/BLU) WIRE RED/YEL WIRE RIGHT COOLING FAN MOTOR (BEHIND RIGHT SIDE OF RADIATOR) RIGHT HEADLAMP ASSEMBLY TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE YEL WIRE

BARE BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BRN WIRE BRN/VIO WIRE BRN/YEL WIRE DRIVER OUTSIDE REARVIEW MIRROR GLASS DRIVER OUTSIDE REARVIEW MIRROR FUSE 28 FUSE 5 FUSE 60 GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) HVAC CONTROLS LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LEFT REAR WINDOW DEFOGGER NOISE FILTER (TOP OF LEFT "C" PILLAR) LOGIC NETWORK 9 PASSENGER OUTSIDE REARVIEW MIRROR PASSENGER REARVIEW OUTSIDE MIRROR GLASS REAR DEFOG RLY CTRL REAR DEFOGGER GRID REAR DEFOGGER IND REAR DEFOGGER RELAY REAR DEFOGGER SWITCH RED WIRE RIGHT REAR WINDOW DEFOGGER NOISE FILTER (TOP OF RIGHT "C" PILLAR) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

BATTERY BODY CONTROL MODULE BATTERY CURRENT SENSOR BLK WIRE COOLING FAN RELAY COOLING FAN SPEED CONTROL RELAY DIODE DIODE ENGINE COMPT) IGNITION IGNITION COIL 4 IGNITION IGNITION IGNITION COIL 1 COIL 2 COIL 3 LATE PRODUCTION LEFT LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LEFT HEADLAMP LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP BALLAST LEFT LEFT FRONT PARK/TURN LOW SIDE SIGNAL BEAM MARKER HEADLAMP LAMP LAMP REAR DEFOGGER RELAY RELAY RIGHT (W/ HID) RIGHT FRONT FRONT TURN PARK SIGNAL LAMP LAMP RIGHT HEADLAMP RIGHT HEADLAMP ASSEMBLY RIGHT HIGH BEAM HEADLAMP RUN WIRE W/ HALOGEN HEADLAMPS W/ HALOGEN W/ HID HEADLAMPS W/ HID WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER MOTOR WINDSHIELD WIPER RELAY

2.0L (NOT USED) 2.4L 2.4L 2.0L BLK WIRE BODY CONTROL MODULE BRAKE BOOSTER VACUUM SWITCH (2.4L) ENGINE CONTROL MODULE FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 6) FROM FUSE 62 (DIAGRAM 1 OF 6) FROM UNDERHOOD FUSE BLOCK (DIAGRAM 3 OF 6) FUEL COMPOSITION SENSOR (2.0L) FUSE FUSE 17 FUSE 26 FUSE 19 FUSE 52 FUSE FUSE FUSE FUSE FUSE GERMANY MADE, EARLY PRODUCTION GRN WIRE HVAC CONTROLS IGNITION INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSIDE REARVIEW MIRROR INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LATE PRODUCTION EARLY PRODUCTION LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LOGIC TRANSMISSION CONTROL MODULE MASS AIR FLOW/ INTAKE AIR TEMPERATURE SENSOR (2.0L) NCA WIRE ORG/ WIRE PASSENGER HVAC PRESENCE CONTROL DETECTION MODULE MODULE PNK (OR VIO/LT GRN) WIRE PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT (OR RED/GRY) WIRE RED/WHT WIRE RED/YEL (OR RED/GRY) WIRE RELAY RUN WIRE TO BODY CONTROL MODULE (DIAGRAM 6 OF 6) TO ENGINE CONTROLS IGNITION RELAY (DIAGRAM 3 OF 6) TO FRONT OF ENGINE BRANCH) TO FUSE 13 (DIAGRAM 3 OF 6) TO FUSE 25 (DIAGRAM 4 OF 6) TO IGNITION DATA LINK SWITCH CONNECTOR (DIAGRAM 6 OF 6) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/BRN (OR VIO/BLK) WIRE VIO/GRN WIRE VIO/WHT WIRE

5 V REF BATT VOL BLK WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/WHT WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER COMPUTER DATA DATA BUS - DATA LINES EARLY PRODUCTION ENGINE CONTROLS IGNITION RELAY ENGINE COOLANT TEMPERATURE SENSOR (RIGHT REAR OF ENGINE) FUEL PRESSURE SENSOR (IN FUEL TANK) FUEL PUMP CONTROL MODULE (RIGHT REAR OF LUGGAGE COMPT) FUEL PUMP SPLY FUSE FUSE 5 FUSE 52 FUSE 57 FUSE 16 FUSE 62 GRN WIRE GRN/GRY WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN RUN OR START IGN VOLT IGNITION RUN RELAY LATE PRODUCTION LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LINES SYSTEM LOW REF PNK TRANSMISSIONS SYSTEM WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM RED/GRY WIRE RELAY CTRL SENS SIG SERIAL DATA SYSTEM UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/VIO WIRE

5 V REF BATT VOL BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/WHT WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER COMPUTER DATA DATA BUS - DATA LINES DK BLU WIRE DK BLU/BLK WIRE ENGINE CONTROLS IGNITION RELAY ENGINE COOLANT TEMPERATURE SENSOR (RIGHT REAR OF ENGINE) FUEL PRESSURE SENSOR (IN FUEL TANK) FUEL PUMP CONTROL MODULE (RIGHT REAR OF LUGGAGE COMPT) FUEL PUMP SPLY FUSE FUSE 5 FUSE 52 FUSE 57 GRN/GRY WIRE GRY WIRE GRY/DK BLU WIRE HOT AT ALL TIMES HOT IN RUN OR START IGN VOLT IGNITION RUN RELAY LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LINES SYSTEM LOW REF LT GRN/DK BLU WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM RED/GRY WIRE RELAY CTRL SENS SIG SERIAL DATA SYSTEM TO SECONDARY AIR INJECTION PUMP RELAY (DIAGRAM 5 OF 6) UNDERHOOD FUSE BLOCK VIO/DK BLU WIRE VIO/LT GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE YEL WIRE

BLK WIRE BLK/DK BLU WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CANADA MADE DK BLU/BLK WIRE ENGINE OIL LEVEL SWITCH FROM FUSE 9 (DIAGRAM 2 OF 6) FUEL INJECTOR 1 (LEFT SIDE OF CYLINDER HEAD, AT CYLINDER 1) FUSE FUSE FUSE GERMANY MADE GRY/DK BLU WIRE HOT AT ALL TIMES LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LT GRN/DK BLU WIRE LT GRN/WHT WIRE NCA WIRE RED/BLU WIRE SECONDARY AIR INJECTION PUMP (LOWER LEFT SIDE OF ENGINE) SECONDARY AIR INJECTION PUMP RELAY (CALIFORNIA) SECONDARY AIR INJECTION SOLENOID VALVE (RIGHT FRONT OF CYLINDER HEAD) SECONDARY AIR INJECTION SOLENOID VALVE RELAY (CALIFORNIA) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/DK BLU WIRE WHT/BRN WIRE