Buick Century VI (1997-2005) fuse block- underhood Wiring diagrams

1750 1550 GRD GRD 377 1872 REMOTE KEYLESS ENTRY CIRCUIT EXTERIOR LIGHTS SYSTEM 443 806 1500 238 PPL PPL 737 10 1571 INTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM ANTI-LOCK BRAKES SYSTEM BCM ACC FUSE BCM POWER FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) BRN WIRE BRN/WHT WIRE COURTESY LAMP LOW CTRL CRANK SIGNAL BCM, CLUSTER FUSE DK BLU WIRE DK BLU/WHT WIRE DOOR LOCK SWITCH- DRIVER DOOR LOCK SWITCH- FRONT PASSENGER DOOR LOCKS FUSE FUSE BLOCK- UNDERHOOD GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ACC OR RUN HOT IN OFF, RUN OR START HOT IN RUN OR START I/P BLOCK BLOCK I/P FUSE BLOCK IGN 0: CLUSTER PCM, BCM FUSE IGNITION KEY ALARM SWITCH INADV POWER BUS FUSE KEY REMINDER SW SIG DRL MOD OUTPUT-PARK BRAKE LOW TIRE PRESS RESET SW SIG LOCK LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PARK BRAKE SWITCH (ON PARKING BRAKE ASSEMBLY) PCM, BCM U/H RELAY FUSE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE RED/BLK WIRE REGAL SEAT BELT SWITCH (PART OF DRIVER'S SEAT BELT ASEMBLY) SERIAL DATA SIG PARK LAMP SW SIG-OFF TAN WIRE TAN/WHT WIRE TIRE RESET SWITCH TRUNK AJAR SW SIG HEADLAMP SW OUTPUT TRACTION CTRL SIG SW TRUNK RELEASE RLY FEED RAP RELAY CTRL HEADLAMP SW SIG UNLOCK WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

A/C CLU DIODE A/C COMPRESSOR CLUTCH AUTOMATIC TRANSMISSION AUXILIARY POWER OUTLET (CENTURY) AUXILIARY POWER OUTLET (REGAL) BATTERY BLK WIRE BLK/WHT WIRE BLOWER MOTOR CONTROL PROCESSOR BLOWER MOTOR RESISTOR ASSEMBLY CIGAR LIGHTER (CENTURY) ASHTRAY LAMP (CENTURY) CIGAR LIGHTER (REGAL) COOL FAN 2 RELAY DATA LINK CONNECTOR (DLC) ELECTRONIC BRAKE CONTROL MODULE ENG COMPT, AT BASE OF BATTERY) ENGINE OIL LEVEL SENSOR ENGINE OIL PRESSURE SWITCH F/PUMP RELAY FUSE BLOCK- UNDERHOOD HEATED OXYGEN SENSOR 2 HORNS I/P COMPARTMENT LAMP SWITCH IGN MAIN RELAY IGNITION CONTROL MODULE (ICM) IGNITION LOCK CYLINDER CONTROL ACTUATOR (REGAL) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL LEFT AIR TEMPERATURE ACTUATOR LEFT CORNERING LAMP LEFT FOG LAMP (REGAL) LEFT HEADLAMP LEFT PARK/ TURN SIGNAL LAMP LEFT SIDE MARKER LAMP LEFT STEERING WHEEL CONTROLS MASS AIRFLOW (MAF) SENSOR NCA WIRE POWER DROP CONNECTOR POWERTRAIN CONTROL MODULE (PCM) RED WIRE REGAL RIGHT AIR TEMPERATURE ACTUATOR HVAC CONTROL MODULE RIGHT COOLING FAN HEATED OXYGEN SENSOR 1 RIGHT CORNERING LAMP RIGHT FOG LAMP (REGAL) RIGHT HEADLAMP RIGHT PARK/ TURN SIGNAL LAMP RIGHT SIDE MARKER LAMP RIGHT STEERING WHEEL CONTROLS WHT WIRE WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER FLUID PUMP

A/C CLUTCH FUSE 23 A/C CLUTCH RELAY 15 ABS FUSE 1 ACCESSORY POWER OUTLET AUDIO AMPLIFIER BACK-UP LAMP RELAY (REGAL) BATT 1 FUSE 7 BATT 3 FUSE 3 BATT 2 FUSE 4 BATTERY BCM PWR FUSE BLK WIRE BLOWER MOTOR CONTROL PROCESSOR BLOWER MOTOR RESISTOR ASSEMBLY BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) OUTSIDE REARVIEW MIRROR SWITCH BREAKOUT) CIGAR LIGHTER CIGAR LTR FUSE COOL FAN 1 FUSE 6 COOL FAN 1 RELAY 12 COOL FAN 2 FUSE 24 COOL FAN 2 RELAY 9 COOL FAN 3 RELAY CRANK FUSE 2 CRANK RELAY 11 DATA LINK CONNECTOR (DLC) DRIVER HEATED SEAT CONTROL MODULE DRIVER SEAT ADJUSTER SWITCH ECM FUSE 22 ELECTRONIC BRAKE CONTROL MODULE (EBCM) F/PMP FUSE 35 F/PMP RELAY 19 F/PMP SPD CONT RELAY 18 FOG LAMP RELAY 17 FOG LP FUSE 31 FROM BATT 2 FUSE 4 (DIAGRAM 1 OF 3) FROM HORN FUSE 27 (DIAGRAM 1 OF 3) FUSE BLOCK- I/P FUSE BLOCK- UNDERHOOD FUSIBLE LINK (10 GA-RUST) GEN FUSE 21 GENERATOR HAZARD FUSE HDLP L FUSE 36 HDLP R FUSE 32 HEADLAMP RELAY HEADLAMP SWITCH PARK LAMP RELAY HIGH BLOWER FUSE HORN FUSE 27 HORN RELAY 16 HVAC CONTROL MODULE RADIO INADV POWER BUS FUSE INSTRUMENT PANEL CLUSTER (IPC) L HEATED SEAT FUSE LEFT HEADLAMP LP PARK FUSE 34 NCA WIRE ORG/ WIRE PARK/ NEUTRAL POSITION SWITCH (CENTURY) PASSENGER FRONT HEATED SEAT CONTROL MODULE PASSENGER FRONT SEAT ADJUSTER SWITCH POWER DROP CONNECTOR POWER MIRRORS FUSE DOOR LOCKS FUSE POWERTRAIN CONTROL MODULE (PCM) R/CMPT REL FUSE 33 RADIO PREM SOUND FUSE RDO,HVAC RFA,CLUSTER DATA LINK FUSE REAR COMPARTMENT LID RELEASE RELAY REAR DEFOG CIRCUIT BREAKER POWER SEAT CIRCUIT BREAKER REAR WINDOW DEFOGGER RELAY RED WIRE REGAL REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) RIGHT HEADLAMP STARTER STOP LAMPS FUSE STOPLAMP SWITCH TO HDLP L FUSE 36 (DIAGRAM 1 OF 3) TO HIGH BLOWER FUSE (DIAGRAM 1 OF 3) TO IGN 2 FUSE 8 (DIAGRAM 2 OF 3) TO ONSTAR FUSE, DIAGRAM (2 OF 3) R HEATED SEAT FUSE TO RETAINED ACCESSORY POWER (RAP) RELAY (DIAGRAM 2 OF 3) TURN SIGNAL/ HAZARD FLASHER MODULE

A/T SHIFT LOCK CONTROL SWITCH BCM ACC FUSE BLK WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (BELOW LEFT SIDE OF DASH) BREAKOUT) BRN (OR DK BLU) WIRE BRN WIRE CRANK SIGNAL BCM, CLUSTER FUSE DK BLU WIRE DK GRN WIRE FROM GEN FUSE 21 (DIAGRAM 1 OF 3) FROM IGNITION SWITCH (DIAGRAM 2 OF 3) FROM INADV POWER BUS FUSE (DIAGRAM 1 OF 3) FROM R HEATED SEAT FUSE DIAGRAM (1 OF 3) FUSE 5 FUSE 8 FUSE BLOCK, UNDER- HOOD FUSE BLOCK- I/P FUSE BLOCK- UNDERHOOD GRY WIRE HEATER- A/C CONTROL CRUISE CONTROL SWITCH CRUISE CONTROL MODULE HVAC CONTROL MODULE RIGHT AIR TEMPERATURE ACTUATOR HVAC FUSE I/P HARN, RIGHT SIDE OF STEERING COLUMN, 13 CM FROM INSTRUMENT CLUSTER BREAKOUT) IGN 0,CLUSTER, PCM, BCM FUSE IGNITION SWITCH INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL BREAKOUT) INSIDE REARVIEW MIRROR INSTRUMENT PANEL CLUSTER (IPC) BODY CONTROL MODULE (BCM) LEFT AIR TEMPERATURE ACTUATOR LEFT RADIO CONTROL SWITCH LEFT FRONT WINDOW SWITCH SUNROOF MODULE LOCK LOCK OFF LOW BLOWER FUSE CRUISE FUSE NCA WIRE OFF ONSTAR FUSE ORG/ WIRE PARK LOCK FUSE (REGAL) PASSENGER SEAT HEATER SWITCH DRIVER SEAT HEATER SWITCH PNK WIRE POWER DROP CONNECTOR POWER DROP FUSE POWERTRAIN CONTROL MODULE (PCM) PPL PPL PPL PPL/ PPL/ PPL/ PWR WINDOWS PWR SUNROOF CIRCUIT BREAKER RADIO RADIO FUSE RADIO FUSE (W/O RAP) REAR WINDOW DEFOGGER RELAY RED WIRE REGAL RETAINED ACCESSORY POWER (RAP) RELAY RUN WIRE TO CRANK SIGNAL FUSE (DIAGRAM 2 OF 3) TO IGN MAIN RELAY 13 (DIAGRAM 3 OF 3) TO LOW BLOWER FUSE (DIAGRAM 2 OF 3) VACUUM CONTROL ASSEMBLY CRUISE CONTROL RELEASE SWITCH VEHICLE COMMUNI- CATIONS INTERFACE MODULE W/ ELECTRIC O/S MIRRORS W/ FOLD AWAY MIRRORS W/ RAP W/ RAP W/O RAP W/ SUN ROOF W/O RAP WHT WIRE WINDSHIELD WIPER MOTOR WIND- SHIELD WIPER/ WASHER SWITCH WIPER FUSE YEL WIRE

3.8L 3.1L A/C CLUTCH RELAY 15 A/T SHIFT CONTROL SWITCH (REGAL) ABS FUSE AIR BAG FUSE AUTOMATIC TRANSAXLE (LEFT OF STARTER, ON TRANS- AXLE STUD) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) BRAKE- TO-SHIFT RELAY BTSI PARK LOCK FUSE CLUSTER FUSE CRANK RELAY 11 ELECTRONIC BRAKE CONTROL MODULE (EBCM) ELEK IGN FUSE 25 OXY SEN FUSE 29 ENG EMIS FUSE 30 EVAPORATIVE EMISSIONS (EVAP) CANISTER PURGE SOLENOID VALVE EVAPORATIVE EMISSIONS (EVAP) CANISTER VENT SOLENOID VALVE F/INJ FUSE 28 FROM IGN 1 FUSE 5 FROM IGNITION SWITCH (DIAGRAM 2 OF 3) FUEL INJECTOR 1 FUEL INJECTOR 2 FUEL INJECTOR 3 FUEL INJECTOR 5 FUEL INJECTOR 4 FUEL INJECTOR 6 FUSE BLOCK- I/P FUSE BLOCK- UNDERHOOD HEATED OXYGEN SENSOR 1 HEATED OXYGEN SENSOR 1 IGNITION CONTROL MODULE (ICM) IGN MAIN RELAY 13 INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT PANEL CLUSTER (IPC) NCA WIRE PCM,BCM U/H RELAY FUSE PNK MASS AIRFLOW (MAF) SENSOR WIRE PNK PNK WIRE PNK STOPLAMP SWITCH WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) REGAL VIN K SECONDARY AIR INJECTION BYPASS VALVE SOLENOID STOPLAMP SWITCH (CENTURY) SUPERCHARGER BYPASS VALVE (3.8L) TRANS FUSE 26 TURN SIGNAL/ HAZARD FLASHER MODULE TURN SIGNALS, CORN LPS FUSE YEL WIRE