Buick Century VI (1997-2005) body control module (bcm) Wiring diagrams

3 CM FROM AUDIO AMPLIFIER (W/ AMP) AUTOMATIC HEADLAMP RELAY BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) BRAKE FLUID LEVEL SWITCH CENTER HIGH MOUNTED STOP LAMPS CRUISE CONTROL MODULE DRIVER INFORMATION DISPLAY SWITCH (REGAL) DATA LINK CONNECTOR (DLC) DRIVER SEAT HEATER CONTROL MODULE DRIVER SEAT ADJUSTER SWITCH DRIVER SEAT HEATER SWITCH PASSENGER SEAT HEATER SWITCH DRIVER WINDOW MASTER SWITCH DRIVER'S HEATED SEAT BACK ELEMENT DRIVER'S HEATED SEAT THERMISTER DRIVER SEAT BELT SWITCH EXC ONSTAR EXC ONSTAR ONSTAR FOG LAMP SWITCH (REGAL) GROUND (ON STEERING COLUMN) HEADLAMP DIMMER SWITCH HEADLAMP SWITCH IGNITION KEY ALARM SWITCH INSTRUMENT PANEL CLUSTER (IPC) LEFT FRONT DOOR LOCK LEFT FRONT DOOR LOCK SWITCH LEFT REAR DOOR LOCK (AJAR INDICATOR SWITCH) LEFT REAR PARK LAMP LEFT REAR PARK LAMP LEFT LICENSE LAMP LEFT ROOF RAIL COURTESY/ READING LAMP NCA WIRE ONSTAR OUTSIDE REMOTE CONTROL REARVIEW MIRROR SWITCH PASSENGER SEAT HEATER CONTROL MODULE PASSENGER'S HEATED SEAT BACK ELEMENT PASSENGER'S HEATED SEAT THERMISTOR PASSENGER SEAT ADJUSTER SWITCH RADIO RADIO ANTENNA MODULE REAR COMPARTMENT LID AJAR SWITCH REAR COMPARTMENT LID LOCK RELEASE ACTUATOR REAR COMPARTMENT LID RELEASE SWITCH REAR WDO ANTENNA FIXED ANTENNA REMOTE CONTROL DOOR LOCK RECEIVER RIGHT BACK-UP LAMP RIGHT LICENSE LAMP LEFT BACK-UP LAMP RIGHT FRONT DOOR LOCK (AJAR INDICATOR SWITCH) RIGHT FRONT DOOR LOCK SWITCH RIGHT FRONT WINDOW SWITCH RIGHT REAR DOOR LOCK (AJAR INDICATOR SWITCH) RIGHT REAR PARK LAMP RIGHT REAR PARK LAMP RIGHT ROOF RAIL COURTESY/ READING LAMP LEFT VANITY MIRROR LAMP RIGHT TAIL/ STOP/TURN SIGNAL LAMP RIGHT REAR SIDE MARKER LAMP FUEL PUMP RIGHT VANITY MIRROR LAMP INSIDE REARVIEW MIRROR SUNROOF MODULE TAN WIRE TIRE RESET SWITCH TRACTION CONTROL SWITCH (REGAL) INSTRUMENT PANEL CLUSTER (IPC) TURN SIGNAL/ HAZARD FLASHER MODULE VEHICLE COMMUNICATIONS INTERFACE MODULE W/ HEATED SEATS (PASS SEAT HARN, 20 CM FROM W/O HEATED SEATS WHT WIRE WIND- SHIELD WIPER MOTOR

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