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Buick Century Limited 2005 - 2005 ELECTRICAL Fuses & Circuit Breakers - Century
Buick Century Limited 2005 - IDENTIFICATION
CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See PROGRAMMING AND SETUP article in GENERAL INFORMATION before disconnecting battery.
Buick Century Limited 2005 - FUSIBLE LINKS
To identify and/or repair fusible links, see Fig. 1.
Fig. 1: Buick Century Limited 2005 - Component Locations - Repairing Fusible Links
Buick Century Limited 2005 - INSTRUMENT PANEL FUSE BLOCK
NOTE: Instrument panel fuse block is located on right side of the I/P, in the right front door opening. See Fig. 2.
Fig. 2: Buick Century Limited 2005 - Component Locations - Locating Instrument Panel Fuse Block
Buick Century Limited 2005 Fuse Application Table (Fuse Block - I/P)
Device Rating Description ABS 10 AMP Electronic Brake Control Module (EBCM) (JL9) ACCY PWR BUS 15 AMP Body Control Module (BCM) and Retained Accessory Power (RAP) Relay (KP2) AIRBAG 10 AMP Inflatable Restraint Sensing and Diagnostic Module (SDM) BCM ACCY 10 AMP Body Control Module (BCM) BCM PWR 10 AMP Body Control Module (BCM) BTSI 10 AMP Stop Lamp Switch and Brake To Shift Relay CLSTR 10 AMP Instrument Panel Cluster (IPC) CRNK SIG, BCM, CLSTR 10 AMP Instrument Panel Cluster (IPC), Body Control Module (BCM) and Powertrain Control Module (PCM) CRUISE 10 AMP Cruise Control Switch (K34), Cruise Control Module (K34), and Cruise Control Release Switch DR/LCK 20 AMP Rear Compartment Lid Release Relay and Body Control Module (BCM) HAZRD 15 AMP Turn Signal Switch HI/BLWR 30 AMP Blower Motor Resistor Assembly (CJ3) and Blower Motor Control Processor (CJ2) HVAC 10 AMP Rear Window Defogger Relay, LH and RH Air Temperature Actuators, HVAC Control Module, Inside Rearview Mirror (C79), and Vacuum Control Assembly (CJ2) IGN 0: CLSTR, PCM & BCM 10 AMP Powertrain Control Module (PCM), Body Control Module (BCM) and Instrument Cluster INT/ILLUM 7.5 AMP Radio, Headlamp Switch, Instrument Panel Cluster (IPC) and HVAC Control Module (CJ3) LOW BLWER 20 AMP HVAC Control Module (CJ3) LTR 20 AMP Cigar Lighter ONSTAR 5 AMP Vehicle Communications Interface Module (VCIM) PCM, BCM, U/H 10 AMP CRANK and IGN MAIN Relays, Body Control Module (BCM) and Powertrain Control Module (PCM) PRK/LGHT 10 AMP Headlamp Assembly - Left and Right PWR/MIR 2 AMP Outside Rearview Mirror Switch PWR/SEAT Circuit Breaker 30 AMP Seat Adjuster Switch - Driver (AG1) PWR/WNDW PWR S/ROOF Circuit Breaker 30 AMP Window Master Switch - Driver RADIO, HVAC, RFA, CLSTR ALDL 15 AMP HVAC Control Module, Radio, Data Link Connector (DLC), Remote Control Door Lock Receiver (RCDLR) and Instrument Panel Cluster (IPC) R/DEFOG Circuit Breaker 30 AMP Rear Window Defogger Relay R/LAMPS 15 AMP INT/ILLUM Fuse, Marker Lamp - LR and RR, Tail/Stop and Turn Signal Lamp - Left and Right, Tail Lamp - Left and Right, and License Lamp - Left and Right STOP LAMPS 15 AMP Stop Lamp Switch STR/WHL/CNTRL 2 AMP Inflatable Restraint Steering Wheel Module Coil, Steering Wheel Controls - Left and Right (UK3) TRN/SIG 10 AMP Turn Signal/Hazard Flasher Module WPR 25 AMP Windshield Wiper Motor and Turn Signal/Multifunction Switch
Buick Century Limited 2005 - UNDERHOOD ELECTRICAL CENTER
NOTE: Underhood electrical center is located on right side of the engine compartment, mounted to the strut tower. See Fig. 4.
Fig. 4: Buick Century Limited 2005 - Component Locations - Locating Underhood Electrical Center
Buick Century Limited 2005 Fuse Block - Underhood Application Table
No. Device Rating Description 1 ABS Fuse (JL9) 60A ABS Module 2 CRANK Fuse 40A CRANK Relay, Starter, BCM, PCM 3 BAT #3 Fuse 60A ONSTAR Fuse, R/DEFOG and PWR/SEAT Circuit Breakers 4 BAT #2 Fuse 60A HI/BLWR, HAZRD, STOP LAMPS, DR/LCK, and PWR/MIR Fuses 5 IGN 1 Fuse 30A Ignition Switch, IGN0:CLSTR, PCM, & BCM, PRK/LCK, ABS, BTSI, TRN/SIG, AIRBAG, CLSTR, PCM, BCM, U/H, and CRNK SIG, BCM, CLSTR Fuses 6 COOL FAN 1 Fuse 25A COOL FAN 1 Relay, Cooling Fan - Left 7 BAT #1 Fuse 60A Radio, HVAC, RFA, CLSTR ALDL, BCM PWR, ACCY PWR BUS, RADIO PREM. SOUND, and LTR Fuses 8 IGN 2 Fuse 60A RAP Relay, Ignition Switch, WPR, BCM ACCY, LOW BLWER, HVAC, and CRUISE Fuses, and PWR WNDW PWR S/ROOF Circuit Breaker 9 COOL FAN 2 RLY Cooling Fan - Right (during high fan speed operation), Cooling Fan - Left (during low fan speed operation) 10 COOL FAN 3 RLY - Cooling Fan - Right 11 CRANK RLY - Powertrain Control Module (PCM) and Starter 12 COOL FAN 1 RLY - Cooling Fan - Left 13 IGN MAIN RLY - OXY SEN, ELEK IGN, F/INJR, TRANS, ENG EMIS Fuses, and A/C CLUTH Relay 14 Empty - - 15 A/C CLU RLY - A/C Compressor Clutch Coil and A/C CLU Diode 16 HORN RLY - Horn Assembly, Horn Switch, and BCM 17-18 EMPTY - - 19 F/PMP RLY - Fuel Pump and Sender Assembly and PCM 20 Empty - - 21 GEN Fuse 10A Generator 22 ECM Fuse 10A Powertrain Control Module (PCM) 23 A/C CLU Fuse 10A A/C CLUTCH Relay, A/C CLU Diode, A/C Compressor Clutch 24 COOL FAN 2 Fuse 15A COOL FAN 2 Relay, and COOL FAN 3 Relay 25 ELEK IGN Fuse 15A Ignition Control Module (ICM) 26 TRANS Fuse 10A 1-2 Shift Solenoid (1-2 SS) Valve, 2-3 Shift Solenoid (2-3 SS) Valve, and Torque Converter Clutch (TCC) Solenoid Valve 27 HORN Fuse 15A Horn Relay 28 F/INJR Fuse 15A Fuel Injectors (1-6) 29 OXY SEN Fuse 15A Heated Oxygen Sensor (HO2S) 1 and Heated Oxygen Sensor (HO2S) 2 30 ENG EMIS Fuse 10A Stop Lamp Switch, Evaporative Emissions (EVAP) Canister Vent Solenoid Valve, Evaporative Emissions (EVAP) Canister Purge Solenoid Valve and Mass Air Flow (MAF) Sensor 31 EMPTY - - 32 HDLP R Fuse 15A Headlamp Assembly - Right 33 R/CMPT REL Fuse 7.5A Backup Lamp Relay 34 LP PARK Fuse 20A Headlamp Switch, Park Lamp Relay, and Automatic Headlamp Relay 35 F/PMP Fuse 15A F/PMP Relay 36 HDLP L Fuse 15A Headlamp Assembly - Left 37-44 Empty - -