Buick Regal V (2009-2013) underhood fuse block (left side of engine compt) Wiring diagrams

A/C EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE ON HVAC MODULE) BLK WIRE BLK/GRY WIRE BLOWER MOTOR CONTROL MODULE BLOWER MTR SPD CTRL BLU WIRE BLU/GRY WIRE DK BLU WIRE DUCT LEFT LOWER AIR TEMPERATURE SENSOR (LEFT SIDE OF HVAC MODULE) DUCT LEFT UPPER AIR TEMPERATURE SENSOR (LEFT SIDE OF HVAC MODULE) DUCT RIGHT LOWER AIR TEMPERATURE SENSOR (BEHIND HVAC MODULE) DUCT RIGHT UPPER AIR TEMPERATURE SENSOR (RIGHT SIDE OF HVAC MODULE) ENGINE COOLANT TEMPERATURE SENSOR (RIGHT REAR OF ENGINE) FT BLOWER MTR LOW REF FUSE 11 FUSE 17 FUSE 2 GRN WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SIDE OF DASH) TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/GRY WIRE WHT/PPL WIRE YEL WIRE

A/C EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE ON HVAC MODULE) BLK WIRE BLK/GRY WIRE BLOWER MOTOR CONTROL MODULE BLOWER MTR SPD CTRL BLU/GRY WIRE DK BLU WIRE DK GRN WIRE DUCT LEFT LOWER AIR TEMPERATURE SENSOR (LEFT SIDE OF HVAC MODULE) DUCT LEFT UPPER AIR TEMPERATURE SENSOR (LEFT SIDE OF HVAC MODULE) DUCT RIGHT LOWER AIR TEMPERATURE SENSOR (BEHIND HVAC CONTROL MODULE) DUCT RIGHT UPPER AIR TEMPERATURE SENSOR (RIGHT SIDE OF HVAC MODULE) ENGINE COOLANT TEMPERATURE SENSOR (RIGHT REAR OF ENGINE) FT BLOWER MTR LOW REF FUSE 11 FUSE 17 FUSE 2 GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SIDE OF DASH) TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/GRY WIRE WHT/PPL WIRE YEL WIRE

2.0L 2.4L 24 25 SERIAL DATA(-) SERIAL DATA(+) 39 40 SERIAL DATA (+) SERIAL DATA (-) ACC VOLT AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLU WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) FUSE 69 GEAR SHIFT POSITION SENSOR GRN WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES LEFT BACKUP LAMP LEFT INNER TAIL- LAMP LEFT OUTER TAIL LAMP LEFT STOP/TURN SIGNAL LAMP LEFT TAIL LAMP ASSEMBLY LOGIC LOGIC INSIDE REARVIEW MIRROR NCA WIRE ORG/BLK WIRE P/N SIG PARK/NEUTRAL SIG RED WIRE RED/GRY WIRE RIGHT BACKUP LAMP RIGHT INNER TAIL- LAMP RIGHT OUTER TAIL LAMP RIGHT STOP/TURN SIGNAL LAMP RIGHT TAIL LAMP ASSEMBLY SIG A SIG B SIG C SIG P SUPPLY VOLT TAN WIRE TAN/BLK WIRE TRANS- MISSION INTERNAL MODE SWITCH TRANSMISSION CONTROL MODULE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

10 11 12 13 14 15 INTERCONNECT NETWORK BUS 3 13 14 WINDSHIELD WIPER SW LOW SIG SHIFT SEL SW PERFORMANCE SIG 15 16 17 18 IGNITION 3 RLY CTRL RUN/CRANK RLY COIL CTRL 15 16 OFF/RUN/CRANK VOLTAGE 16 17 18 19 20 21 22 23 24 25 26 27 INTERCONNECT NETWORK BUS 1 18 19 20 21 22 23 24 25 HORN RELAY CONTROL HORN SWITCH SIGNAL 295 (OR 3271) 3 4 GROUND DOOR LOCK ACT UNLOCK CTRL 3 4 IMMOBILIZER SPLY VOLT LIGHTING CTRL SW REF 312 (OR 7539) 43 (OR 755) 5 6 REAR COMPT AJAR SW SIG (1) 5-VOLT REFERENCE 50 1650 (OR 3277) 6815 24 INTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM 6846 2268 1594 (OR 5199) 91 196 5075 7 8 9 10 11 12 ACCESSORY VOLTAGE 7 8 LED BACKLIGHT DIMMING CTRL INST PANEL LP DIMMING CTRL 712 (OR 7538) 1315 1335 7553 737 SHIFT INTERLOCK SYSTEM INTERIOR LIGHTS SYSTEM 781 156 DOOR LOCKS SYSTEM INTERIOR LIGHTS SYSTEM ACCESSORY VOLTAGE ACCESSORY VOLTAGE RAP RELAY COIL CONTROL ANTI-THEFT SYSTEM BATTERY BATTERY POSITIVE VOLTAGE BLK WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM ANTI-THEFT SYSTEM CURRENT SENSOR SPLY VOLT DOOR LCK ACT LCK CTRL 2 DOOR LOCK ACT LCK CTRL DOOR LOCK CONTROL (2) DOOR LOCKS SYSTEM DRV DR LOCK SW UNLOCK SIG COURTESY LAMP SWITCH SIGNAL DRV DR LOCK SWITCH LOCK SIG EARLY PRODUCTION LATE PRODUCTION ELECTRONIC SUSPENSION SYSTEM EXTERIOR LIGHTS SYSTEM WIPER/WASHER SYSTEM FUSE FUSE 32 GMLAN SERIAL DATA (-) (1) GMLAN SERIAL DATA (+) (1) GRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/VIO WIRE HAZARD SW RH TURN SIG WINDSHIELD WASHER SW SIG HDLP SW FLASH TO PASS SIG HEADLIGHTS SYSTEM HORNS SYSTEM HOT AT ALL TIMES INADVERTENT POWER CONTROL BACKUP LAMP SUPPLY VOLTAGE INTERCONNECT NETWORK BUS 11 INTERCONNECT NETWORK BUS 2 LED BACKLIGHT DIMMING CTRL LOGISTIC MODE RELAY OPEN CTRL LOGISTIC MODE RLY CLOSE CTRL LOW REFERENCE LOW SPEED GMLAN SERIAL DATA LR CHILD SECURITY LOCK MOTOR STATUS SIGNAL ORG/BLK WIRE PARK LOCK SOLENOID CONTROL TRUNK LAMP CONTROL POWER DISTRIBUTION SYSTEM REAR COMPT HANDLE SW OP SIG REAR LICENSE LAMP SPLY VOLT WINDSHIELD WASHER RLY CTRL RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE RR CHILD SECURTY LCK MTR STATUS SIG RUN/CRANK IGNITION 1 VOLTAGE SPORT MODE SWITCH (SIGNAL) STARTING/CHARGING SYSTEM STOP LAMP RLY COIL SPLY VOLT TAN/WHT WIRE TRUNK, TAILGATE, FUEL DOORS SYSTEM UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/BLK WIRE VIO/BLU WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE WINDSHIELD WIPER SW HI SIG WIPER MTR PARK SW SIG CURRENT SENSOR SIGNAL WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM ELECTRONIC SUSPENSION YEL WIRE YEL/BLU 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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 B+ SOL CTRL 1 2 3 4 5 6 SERIAL DATA - 5 6 14 DATA + DATA - SPLY VOLT 5986 2500 2501 COMPUTER DATA LINES SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE FUSE 23 GRN WIRE GRN/BRN WIRE HOT AT ALL TIMES LOGIC INSTRUMENT CLUSTER NCA WIRE POWER STEERING CONTROL MODULE (LEFT SIDE OF DASH) RED WIRE SERIAL DATA SERIAL DATA (+) SERIAL DATA (-) SERIAL DATA (+) SOL LOW REF SPLY VOLT GROUND STEERING WHEEL ANGLE SENSOR (STEERING COLUMN BEHIND STEERING WHEEL) SYSTEM UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLU WIRE YEL WIRE

BLK WIRE BLK/BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SENSOR (NEAR TOP OF ACCELERATOR PEDAL ASSEMBLY) COMPUTER DATA LINES SYSTEM FROM HOOD HINGE) FUSE 52 GRN WIRE GRN/VIO WIRE GRY/BLU WIRE HOT W/ IGNITION RUN RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FRONT PARK LAMP LEFT FRONT SIDE MARKER LAMP LEFT FRONT TURN SIGNAL LAMP LEFT HEADLAMP LEFT OUTER TAIL LAMP LEFT STOP/ TURN SIGNAL LAMP LEFT INNER TAIL LAMP LEFT TAIL LAMP ASSEMBLY LEFT TURN IND LEFT TURN SIGNAL REPEATER LAMP LOGIC PARK LAMPS IND RIGHT TURN IND RIGHT TURN SIGNAL REPEATER LAMP RUN/CRANK IGNITION 1 VOLT SERIAL DATA TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/BLU WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE

A/C COMPRESSOR CLUTCH RLY CTRL 5-V REF APP SENS SIG (2) ACCESSORY VOL AIR CONDITIONING SYSTEM AIR PRESSURE SIG 5-V REF A/C REFRIGERANT PRESSURE SENS SIG BLK WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLING FAN RLY CTRL COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG DK BLU WIRE ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE IND CTRL EVAP CONISTER VENT SOL CTRL FUEL LEVEL SENS SIG LOW REF FUEL PUMP PRIMARY RLY CTRL FUEL PUMP/ SENDER ASSEMBLY (IN FUEL TANK) FUEL TANK PRESSURE SENS SIG 5-V REF FUEL TANK PRESSURE SENSOR (RIGHT SIDE OF FUEL TANK, ON EVAP CANISTER) FUSE GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES LOW REF LOW REF 5-V REF LOW REF LOW SPEED COOLING FAN RLY CTRL ORG/BLK WIRE PNK RUN/CRANK IGN 1 VOL BATT POS VOL LOW REF WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN RLY COIL CTRL POWERTRAIN MAIN RLY FUSED SPLY (1) PRE-THROTTLE AIR PRESS, TEMP SIG 5-V REF APP SENS SIG (1) RED BRN/ WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE STARTER ENABLE RLY CTRL STARTING/CHARGING SYSTEM TURBOCHARGER BOOST/INTAKE AIR TEMPERATURE SENSOR (IN INTAKE BELOW THROTTLE BODY) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/RED (OR BRN/RED) WIRE YEL WIRE YEL/WHT WIRE

5-V REF 1 LOW REF 5-V REF 4 APP SENS SIG (1) 5-V REF APP SENS SIG (2) A/C REFRIGERANT PRESSURE SENS SIG ACCESSORY VOL BLK BRN/ WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRN WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FAN RLY CTRL COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG DK BLU/BLK WIRE DK BLU/LT GRN WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE IND CTRL EVAP CONISTER VENT SOL CTRL FUEL LEVEL SENS SIG LOW REF FUEL PUMP PRIMARY RLY CTRL FUEL PUMP/ SENDER ASSEMBLY (IN FUEL TANK) FUEL TANK PRESSURE SENS SIG 5-V REF 1 FUEL TANK PRESSURE SENSOR (RIGHT SIDE OF FUEL TANK, ON EVAP CANISTER) FUSE FUSE SPLY (2) STARTER ENABLE RLY CTRL GMLAN SERIAL DATA BUS + (1) GMLAN SERIAL DATA BUS - (1) GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES LOW REF LOW SPEED COOLING FAN RLY CTRL LT BLU/WHT WIRE LT GRN/DK BLU WIRE LT GRN/WHT WIRE ORG/BLK WIRE PNK/BLK WIRE POWERTRAIN RLY COIL CTRL POWERTRAIN MAIN RLY FUSED SPLY (1) RED BRN/ WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RUN/CRANK IGN 1 VOL BATT POS VOL LOW REF STARTING/CHARGING SYSTEM TAN/BLK WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) FUSE 62 VIO/DK BLU WIRE VIO/LT GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/RED (OR BRN/RED) WIRE YEL WIRE YEL/RED WIRE YEL/WHT 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