Buick Regal III (1988-1997) nca Wiring diagrams

1995 VFTC A/C COMPRESSOR CLUTCH COIL A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR RELAY (IN UNDERHOOD ELECTRICAL CENTER) A/C REFRIGERANT PRESSURE SENSOR (RIGHT SIDE OF ENGINE COMPARTMENT) BLK WIRE BRN WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM BAT FUSE ENGINE COOLANT TEMPERATURE SENSOR (LEFT TOP OF ENGINE) ENGINE COOLING FAN MOTOR 1 FAN CONTROL GRY WIRE HOT AT ALL TIMES HOT IN RUN ENG EMIS FUSE LT BLU WIRE LT GRN WIRE MAXI FUSE 1 MAXI FUSE 3 NCA WIRE ORG/ WIRE RED WIRE RED/BLK WIRE UNDERHOOD ELECTRICAL CENTER 1 WHT WIRE YEL WIRE

1995 VFTC A/C COMPRESSOR CLUTCH COIL A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR RELAY (IN UNDERHOOD ELECTRICAL CENTER) A/C REFRIGERANT PRESSURE SENSOR (RIGHT SIDE OF ENGINE COMPARTMENT) BLK WIRE BRN WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM BAT FUSE ENGINE COOLANT TEMPERATURE SENSOR (LEFT TOP OF ENGINE) ENGINE COOLING FAN MOTOR 1 ENGINE COOLING FAN MOTOR 2 FAN CONTROL RELAY 1 (IN UNDERHOOD ELECTRICAL CENTER) FAN CONTROL RELAY 2 (IN UNDERHOOD ELECTRICAL CENTER) GRY WIRE HOT AT ALL TIMES HOT IN RUN ENG EMIS FUSE LEFT ELECTRIC ACTUATOR LT BLU WIRE LT GRN WIRE MAXI FUSE 1 MAXI FUSE 3 NCA WIRE ORG/ WIRE PASSENGER HEATER-A/C CONTROL SELECT SWITCH RED WIRE RED/BLK WIRE RIGHT ELECTRIC ACTUATOR SOLID STATE UNDERHOOD ELECTRICAL CENTER 1 WHT WIRE YEL WIRE

1995 VFTC A/C COMPRESSOR CLUTCH COIL A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR HIGH PRESSURE CUT OFF SWITCH (BACK OF COMPRESSOR) A/C COMPRESSOR PRESSURE CYCLING SWITCH (ON SIDE OF EVAPORATOR) A/C COMPRESSOR RELAY (IN UNDERHOOD ELECTRICAL CENTER) A/C HEAD PRESSURE SWITCH (RIGHT SIDE OF ENGINE COMPARTMENT) A/C REQUEST RELAY CONTROL RELAY CONTROL RELAY CONTROL PRESSURE SW INPUT BLK WIRE BRN WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM BAT FUSE ENGINE COOLING FAN MOTOR 1 ENGINE COOLING FAN MOTOR 2 FAN CONTROL RELAY 1 (IN UNDERHOOD ELECTRICAL CENTER) FAN CONTROL RELAY 2 (IN UNDERHOOD ELECTRICAL CENTER) HOT AT ALL TIMES HOT IN RUN ENG EMIS FUSE LT BLU WIRE LT GRN WIRE MAXI FUSE 1 MAXI FUSE 3 NCA WIRE ORG/ WIRE RED WIRE RED/BLK WIRE UNDERHOOD ELECTRICAL CENTER 1 WHT WIRE

1995 VFTC A/C COMPRESSOR CLUTCH COIL A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR RELAY (IN UNDERHOOD ELECTRICAL CENTER) A/C HEAD PRESSURE SWITCH (RIGHT SIDE OF ENGINE COMPARTMENT) A/C REQUEST RELAY CONTROL RELAY CONTROL RELAY CONTROL PRESS SW INPUT BLK WIRE BRN WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM BAT FUSE ENGINE COOLING FAN MOTOR 1 ENGINE COOLING FAN MOTOR 2 FAN CONTROL RELAY 1 (IN UNDERHOOD ELECTRICAL CENTER) FAN CONTROL RELAY 2 (IN UNDERHOOD ELECTRICAL CENTER) GRY WIRE HOT AT ALL TIMES HOT IN RUN ENG EMIS FUSE LEFT ELECTRIC ACTUATOR LT BLU WIRE MAXI FUSE 1 MAXI FUSE 3 NCA WIRE ORG/ WIRE PASSENGER HEATER-A/C CONTROL SELECT SWITCH RED WIRE RED/BLK WIRE RIGHT ELECTRIC ACTUATOR SOLID STATE UNDERHOOD ELECTRICAL CENTER 1 WHT WIRE YEL WIRE

ABS ENABLE RELAY ABS MAXI- FUSE ABS MOTOR PACK (LEFT REAR OF ENGINE COMPT, MOUNTED TO MASTER CYLINDER) ABS WARN IND B/H CONN BLK WIRE BRAKE WARN IND BRN WIRE CHEVROLET CHEVROLET, PONTIAC BUICK, OLDSMOBILE DATA LINK CONNECTOR (ON BOTTOM OF I/P, RIGHT OF STEERING COLUMN) DK GRN WIRE ELECTRONIC POWER STEERING SYSTEM EX CHEVROLET FUSE 10 FUSE 23 FUSE 33 FUSE 39 FUSE BLOCK GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST OR START INDICATOR CONTROL INSTRUMENT CLUSTER LEFT FRONT ABS SOLENOID (LEFT REAR OF ENGINE COMPT, MOUNTED ON MASTER CYLINDER) LEFT FRONT MOTOR LEFT FRONT WHEEL SENSOR LEFT REAR WHEEL SENSOR LOW TRAC IND LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PNK WIRE PPL PPL PNK WIRE REAR MOTOR RED WIRE RIGHT FRONT ABS SOLENOID (LEFT REAR OF ENGINE COMPT, MOUNTED ON MASTER CYLINDER) RIGHT FRONT MOTOR RIGHT FRONT WHEEL SENSOR RIGHT REAR WHEEL SENSOR STRNG WHEEL SENS IN PWR STRNG SOL BATT IGN BRAKE IN TAN WIRE TAN/WHT WIRE TCC BRAKE SWITCH (ON BRAKE PEDAL BRACKET) TO VAR P/S FUSE UNDERHOOD ELECTRICAL CENTER #2 WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE DEFOG REQUEST DEFOG ENABLE DEFOG IN DEFOGGER IND FUSE 15 FUSE 16 FUSE 24 FUSE BLOCK GROUND HEATER AND A/C CONTROL HOT AT ALL TIMES HOT IN RUN IGN NCA WIRE ORG/ WIRE PPL LT REAR DEFOGGER GRID REAR DEFOGGER SWITCH REAR WINDOW DEFOG RELAY (BEHIND LEFT SIDE OF I/P)

1995 VFTC ABS MAXI- FUSE ABS RELAY B/H CONN BATT INPUT BLK WIRE BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR (ON BOTTOM OF I/P, RIGHT SIDE OF STEERING COLUMN) ELECTRONIC BRAKE CONTROL MODULE (EBCM) (BEHIND LEFT SIDE OF I/P) ENABLE RLY CTRL EVO ACTUATOR CTRL FUSE BLOCK GROUND HOT AT ALL TIMES HOT IN RUN FUSE 23 NCA WIRE PNK WIRE POWER STEERING PUMP RED WIRE SERIAL DATA LINE SWITCHED IGN TAN WIRE UNDERHOOD ELECTRICAL CENTER #2 VAR P/S FUSE

1074 1073 KEY RES IN KEY RES IN 1995 VFTC 640 339 PNK 229 625 728 WIRE ACCY BULB TEST LOCK OFF BAT IGN ENABLE OUT RLY CNTRL IND CNTRL BLK WIRE DK BLU WIRE FUEL ENABLE FUSE 10 FUSE 12 FUSE 39 FUSE BLOCK (RIGHT SIDE OF I/P) GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START IGNITION KEY IGNITION KEY LOCK CYLINDER IGNITION SWITCH INSTRUMENT CLUSTER NCA WIRE ORG/ WIRE PNK WIRE POWERTRAIN CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) PPL PPL/WHT WIRE RESISTOR PELLET PPL/ RUN WIRE SECURITY INDICATOR STARTER SOLENOID STARTING/ CHARGING SYSTEM THEFT DETERRENT MODULE (BEHIND RIGHT SIDE OF I/P) THEFT DETERRENT RELAY (BEHIND RIGHT SIDE OF I/P) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

401 400 416 PPL 412 413 PPL 83 697 CRUISE CONTROL MODULE A/C CLUTCH RELAY A/C CLUTCH RELAY CONTROL MALFUNCTION IND CONTROL A/C ON IN A/C SENSOR (LEFT FRONT OF ENGINE COMPARTMENT) A/C SENSOR IN FUEL PUMP MOTOR FEED BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CANISTER PURGE CONTROL CONVENIENCE CENTER COOLANT TEMP SENSOR (TOP LEFT SIDE OF ENGINE BLOCK) CRUISE DISABLE SOL A CONTROL SOL B CONTROL SOL C CONTROL BATTERY BATTERY GROUND DATA LINK CONNECTOR (LOWER LEFT HUSH PANEL) DIGITAL EXHAUST GAS RECIRCULATION ASSEMBLY (TOP LEFT REAR OF ENGINE BLOCK) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM BAT FUSE ENG EMIS FUSE FUSE 39 ENGINE OIL LEVEL SENSOR EVAPORATIVE EMISSION CANISTER PURGE VALVE (TOP REAR OF ENGINE, ON INTAKE PLENUM) FAN CONTROL RELAY FAN RELAY CONTROL FAN RELAY CONTROL FUEL PUMP RELAY CTRL GRY WIRE HEATED OXYGEN SENSOR (REAR OF ENGINE, IN EXHAUST MANIFOLD) HEATER, A/C CONTROL ASSEMBLY HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST OR START IDLE AIR CTRL VALVE (TOP OF ENGINE ON FRONT OF THROTTLE BODY) INSTRUMENT CLUSTER LOW OIL INDIC INSTRUMENT CLUSTER SYSTEM INTAKE AIR TEMP SENSOR (LEFT FRONT OF ENGINE COMPT ON AIR CLEANER) LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MALFUNCTION INDICATOR MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE) MAP SENSOR IN TPS SENSOR IN ECT SENSOR IN TRANS TEMP SENSOR IN NCA WIRE OIL LEVEL SENSOR IN SENSOR GROUND SENSOR GROUND SENSOR GROUND ORG/ WIRE ORG/BLK WIRE PARK/NEUTRAL OUT SERIAL DATA IN/OUT PNK WIRE PPL RED WIRE RED/BLK WIRE SECOND GEAR START REQUEST SENSOR GROUND BRAKES APPLIED IN PNP SWITCH IN SHIFT SOL A OUT SHIFT SOL B OUT TCC SOL OUT LOW OIL IND CTRL TCC CONTROL SOL A SOL B SOL C TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THROTTLE POSITION SENSOR (REAR OF ENGINE, RIGHT SIDE OF THROTTLE BODY) UNDERHOOD ELECTRICAL CENTER 1 VEHICLE SPEED SENSOR (RIGHT REAR OF ENGINE ON TRANSAXLE) WHT WIRE YEL WIRE YEL/BLK WIRE

ANTI-THEFT SYSTEM IN AUTOMATIC TRANSAXLE HOT IN RUN UNDERHOOD ELECTRICAL CENTER #1 TCC FUSE BLK WIRE BLK/PNK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CAM POSITION SENSOR IN CAMSHAFT POSITION SENSOR (RIGHT SIDE OF ENGINE) CRANK POSITION SENSOR (LOWER REAR OF ENGINE) CRUISE CONTROL MODULE CRUISE FUSE CRUISE ON IN DK BLU WIRE DK GRN/WHT WIRE ECM BAT FUSE ECM/IGN FUSE F/INJ FUSE FUEL PUMP PRIMING CONN FUEL PUMP RELAY (RIGHT SIDE OF ENGINE COMPT FWD OF STRUT TOWER) FUEL PUMP SWITCH/OIL PRESSURE SENSOR SW (FRONT CENTER OF ENGINE NEAR OIL FILTER) FUEL TANK UNIT (TOP OF FUEL TANK) GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST OR START HOT IN RUN, BULB TEST, OR START FUSE BLOCK: I/P FUSE 39 IGNITION AMPLIFIER AND SWITCHING MODULE IGNITION COIL ASSEMBLY (RIGHT REAR OF ENGINE COMPT) INJ 1 INJ 3 INJ 2 INJ 4 INJ 6 INJ 5 KNOCK SENSOR (LOWER RIGHT REAR OF ENGINE BLOCK) KNOCK SENSOR IN CRANK POS SENSOR IN LOW RESOLUTION LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE OF MAG BRACKET) ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (LEFT REAR OF ENGINE, RIGHT TOP OF TRANSAXLE) PLUGS SPARK PNK IGNITION WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POSITION SENSOR PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE SECOND GEAR START SWITCH (BEHIND LEFT SIDE OF I/P) SHIFT SOL A SHIFT SOL B SPARK PLUGS TACHOMETER TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOL TCC/BRAKE SWITCH (LEFT SIDE OF I/P) TRANS TEMP SWITCH TRANSAXLE CONVERTER CLUTCH UNDER- HOOD ELECT CENTER UNDERHOOD ELECTRICAL CENTER #1 ELEC/IGN FUSE WHT WIRE YEL WIRE YEL/BLK WIRE