Buick Century VI (1997-2005) Wiring diagram engine performance 3.1l vin j

1500 540 PPL IGNITION POWER POWER (BATTERY) 1746 1745 453 FUEL INJ 3 CONTROL FUEL INJ 2 CONTROL REF LOW 83 845 CRUISE DISABLE OUTPUT FUEL INJ 5 CONTROL BLK WIRE BLK/WHT WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (CMP) (FRONT OF ENG, BELOW INTAKE PLENUM) COOLING FAN SYSTEM CRANKSHAFT POSITION CRANKSHAFT POSITION (CKP) CRUISE CONTROL SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM FUSE 22 ELEK IGN FUSE 25 ENG EMIS FUSE 30 EVAP CAN PURGE CONTROL F/INJR FUSE 28 FUEL INJ 6 CONTROL A/C PRESS RETURN GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN OFF, RUN BULB TEST, OR START HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH, IN RIGHT DOOR OPENING) IGN 0 FUSE IGNITION AMPLIFIER AND SWITCHING MODULE IGNITION CONTROL MODULE (TOP RIGHT SIDE OF ENG) KNOCK SENSOR (KS) BANK 1 (LEFT SIDE LOWER ENG, ABOVE STARTER) LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MAP SENSOR MAP/ECT SENSOR SIGNAL PCM GROUND IAT SENSOR GROUND (PIN 14-15 NOT USED) ORG/ WIRE ORG/BLK WIRE PNK 2 3 4 WIRE PNK 5 6 WIRE PNK PNK PPL 8 9 10 11 12 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 772 492 (PIN 66-67 NOT USED) PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE SENSOR RETURN SPARK PLUGS SPLICE PACK TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) WHT WIRE YEL WIRE YEL/BLK WIRE

AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE MANUAL VALVE POSITION SWITCH BLK WIRE BLK/WHT WIRE BLU WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/ WHT WIRE DK GRN/WHT WIRE FUEL INJECTORS GRN WIRE GRY WIRE GRY/WHT WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT PPL ORG/BLK WIRE PNK 2 3 4 WIRE PNK 5 6 WIRE PNK PNK PPL 8 9 10 11 12 WIRE PNK WIRE PNK/BLK WIRE PPL PRESSURE CONTROL SOLENOID VALVE RED WIRE RED/BLK WIRE RED/WHT WIRE STOPLIGHT SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) TAN/WHT WIRE TRANSMISSION INTERNAL MODE SWITCH VEHICLE SPEED SENSOR (LOWER RIGHT SIDE OF ENG COMPT, ON TRANSAXLE) WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 3 PNK WIRE A/C REFRIGERANT PRESSURE SENSOR (ON LEFT SIDE OF ENG COMPT, ON ACCUMULATOR) BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE EXHAUST GAS RECIRCULATION (EGR) VALVE (TOP REAR OF ENG, NEAR THROTTLE BODY) FUEL TANK PRESSURE SENSOR (IN FUEL TANK) GENERATOR GRY WIRE GRY/BLK WIRE INSTRUMENT CLUSTER LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MALFUNCTION INDICATOR LAMP ORG/BLK WIRE PNK WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THROTTLE POSITION (TP) SENSOR (ON THROTTLE BODY ASSEMBLY) UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOLENOID 1174 85 CRUISE CONTROL SYSTEM 2-3 SHIFT SOLENOID 444 472 (PIN 47-48 NOT USED) 5 VOLT REF (PIN 31-32 NOT USED) 33 34 35 36 37 38 39 TPS REF TP SWITCH AIR CONDITIONING SYSTEM AUTO TRANSAXLE FLUID TEMPERATURE AUTOMATIC TRANSMISSION SENSOR BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLUSTER FUSE CRANK SIGNAL FUSE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENG OIL LEVEL IND IN CRUISE STATUS EVAP CAN VENT SOL CONTROL FUEL PUMP RELAY CONTROL EGR VAL CONTROL MIL CONTROL F/PMP RELAY FUEL PUMP FUEL PUMP PRIME CONNECTOR FUEL TANK GEN TERMINAL L OUTPUT GRY WIRE GRY/BLK WIRE HEATED OXYGEN SENSOR 1 HEATED OXYGEN SENSOR 2 HOT AT ALL TIMES F/PMP FUSE 35 HOT IN HOT IN RUN, BULB TEST OR START IAC COIL "A" LOW IAC COIL A HIGH (PIN 8-9 NOT USED) PPL 10 11 IAC COIL B LOW IAT SENSOR SIGNAL LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE PNK WIRE PPL PPL FUEL LEVEL SENSOR PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE SENSOR GROUND STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOL VAL CONTROL TCC SOLENOID VALVE TFT SENSOR SIGNAL FUEL LEVEL SENSOR INPUT CKP SENS PPL TR SWITCH INPUT A ENG OIL PRESS SWITCH IN TRANS FUSE 26 OXY SEN FUSE 29 UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) WHT WIRE YEL WIRE YEL/BLK WIRE