Buick Century 1997-2005 Fuse Diagram

Instrument Panel Fuse Block

Some fuses are located in a fuse block on the passenger’s side of the instrument panel. Pull off the cover labeled FUSES to expose the fuses.

TIRE RESET Tire Inflation Monitor
Reset Button
PWR WINDOWS,
PWR SUNROOF
Power Windows, Power
Sunroof
REAR DEFOG Rear Window Defogger
POWER SEATS Power Seats
Blank Not Used
TIRE RESET Tire Inflation Monitor Reset Button PWR WINDOWS, PWR SUNROOF Power Windows, Power Sunroof REAR DEFOG Rear Window Defogger POWER SEATS Power Seats Blank Not Used
Fuse Description
Blank Not Used
Blank Not Used
Blank Not Used
PCM, BCM,
U/H RELAY
Ignition Signal: Hot in Run
and Start, Powertrain Control
Module, Body Control
Module, Underhood Relay
RADIO PREM.
SOUND
Remote Radio
Premium Sound
POWER MIRRORS Power Mirrors
Blank Not Used
PANEL DIMMING Panel Dimming
Blank Not Used
IGN 0, CLUSTER,
PCM, BCM
Ignition Signal: Hot in Run,
Unlock and Start, Cluster,
Powertrain Control Module,
Body Control Module
Blank Not Used
Blank Not Used
DRL Daytime Running
Lamps Module
INADV POWER
BUS
Interior Lamps, Retained
Accessory Power
Fuse Description Blank Not Used Blank Not Used Blank Not Used PCM, BCM, U/H RELAY Ignition Signal: Hot in Run and Start, Powertrain Control Module, Body Control Module, Underhood Relay RADIO PREM. SOUND Remote Radio Premium Sound POWER MIRRORS Power Mirrors Blank Not Used PANEL DIMMING Panel Dimming Blank Not Used IGN 0, CLUSTER, PCM, BCM Ignition Signal: Hot in Run, Unlock and Start, Cluster, Powertrain Control Module, Body Control Module Blank Not Used Blank Not Used DRL Daytime Running Lamps Module INADV POWER BUS Interior Lamps, Retained Accessory Power
Fuse Description
DOOR LOCKS Door Locks
Blank Not Used
TAIL LAMPS,
LIC LAMPS
Taillamps, License Lamps
RADIO Radio
HEATED MIRROR Heated Mirrors
CRUISE Cruise Control
Blank Not Used
CLUSTER Instrument Panel Cluster
CIGAR LTR,
DATA LINK
Cigarette Lighter, Auxiliary
Power Connection (Power
Drop), Data Link
STOP LAMPS Stoplamps
Blank Not Used
FRT PARK LPS Parking Lamps
POWER DROP Auxiliary Power Connection
(Power Drop): Hot in ACC
and Run
CRANK SIGNAL,
BCM, CLUSTER
Crank Signal, Body Control
Module, Cluster, Powertrain
Control Module
HVAC Ignition Signal, HVAC
Control Head
Fuse Description DOOR LOCKS Door Locks Blank Not Used TAIL LAMPS, LIC LAMPS Taillamps, License Lamps RADIO Radio HEATED MIRROR Heated Mirrors CRUISE Cruise Control Blank Not Used CLUSTER Instrument Panel Cluster CIGAR LTR, DATA LINK Cigarette Lighter, Auxiliary Power Connection (Power Drop), Data Link STOP LAMPS Stoplamps Blank Not Used FRT PARK LPS Parking Lamps POWER DROP Auxiliary Power Connection (Power Drop): Hot in ACC and Run CRANK SIGNAL, BCM, CLUSTER Crank Signal, Body Control Module, Cluster, Powertrain Control Module HVAC Ignition Signal, HVAC Control Head
Fuse Description
BTSI PARK LOCK Shifter Lock Solenoid
AIR BAG Air Bag
BCM PWR Body Control Module
HAZARD Hazard Flashers
LH HEATED SEAT Driver’s Heated Seat
Blank Not Used
BCM ACC Ignition Signal: Hot in ACC
and Run, Body Control
Module
Blank Not Used
LOW BLOWER Low Blower
ABS Anti-Lock Brakes
TURN SIGNALS,
CORN LPS
Turn Signals, Cornering
Lamps
RADIO, HVAC,
RFA, CLUSTER
Radio, HVAC Head, Remote
Keyless Entry, Cluster
HIGH BLOWER High Blower
RH HEATED SEAT Passenger’s Heated Seat
STRG WHL CONT Audio Steering Wheel
Controls
WIPER Wipers
Fuse Description BTSI PARK LOCK Shifter Lock Solenoid AIR BAG Air Bag BCM PWR Body Control Module HAZARD Hazard Flashers LH HEATED SEAT Driver’s Heated Seat Blank Not Used BCM ACC Ignition Signal: Hot in ACC and Run, Body Control Module Blank Not Used LOW BLOWER Low Blower ABS Anti-Lock Brakes TURN SIGNALS, CORN LPS Turn Signals, Cornering Lamps RADIO, HVAC, RFA, CLUSTER Radio, HVAC Head, Remote Keyless Entry, Cluster HIGH BLOWER High Blower RH HEATED SEAT Passenger’s Heated Seat STRG WHL CONT Audio Steering Wheel Controls WIPER Wipers

Main Fuse Box Diagram (Under Hood)

Some fuses and relays are located in the under-hood electrical center on the passenger’s side of the engine compartment.

Maxi fuse Description
1 ABS
2 Starter Solenoid
3 Power Seats, Rear Defog
4 High Blower, Hazard Flasher,
Stoplamps, Power Mirror,
Door Locks
5 Ignition Switch, BTSI, Stoplamps,
ABS, Turn Signals, Cluster,
Air Bag, DRL Module
6 Cooling Fan
7 Interior Lamps, Retained
Accessory Power, Keyless Entry,
Data Link, HVAC Head, Cluster,
Radio, AUX Power (Power Drop),
Cigarette Lighter
8 Ignition Switch, Wipers, Radio,
Steering Wheel Controls, Body
Control Module, AUX Power
(Power Drop), Power Windows,
Sunroof, HVAC Controls, DRL,
Rear Defog Relay
Maxi fuse Description 1 ABS 2 Starter Solenoid 3 Power Seats, Rear Defog 4 High Blower, Hazard Flasher, Stoplamps, Power Mirror, Door Locks 5 Ignition Switch, BTSI, Stoplamps, ABS, Turn Signals, Cluster, Air Bag, DRL Module 6 Cooling Fan 7 Interior Lamps, Retained Accessory Power, Keyless Entry, Data Link, HVAC Head, Cluster, Radio, AUX Power (Power Drop), Cigarette Lighter 8 Ignition Switch, Wipers, Radio, Steering Wheel Controls, Body Control Module, AUX Power (Power Drop), Power Windows, Sunroof, HVAC Controls, DRL, Rear Defog Relay
Mini relay Description
9 Cooling Fan 2
10 Cooling Fan 3
11 Starter Solenoid
12 Cooling Fan 1
13 Ignition Main
14 Air Pump (Optional)
Micro
relay
 Description
15 A/C Clutch
16 Horn
17 Not Used
18 Not Used
19 Fuel Pump
Mini fuse Description
20 Air Pump (Optional)
21 Generator
22 ECM
23 A/C Compressor Clutch
24 Cooling Fan
25 Electronic Ignition
26 Transaxle
Mini relay Description 9 Cooling Fan 2 10 Cooling Fan 3 11 Starter Solenoid 12 Cooling Fan 1 13 Ignition Main 14 Air Pump (Optional) Micro relay Description 15 A/C Clutch 16 Horn 17 Not Used 18 Not Used 19 Fuel Pump Mini fuse Description 20 Air Pump (Optional) 21 Generator 22 ECM 23 A/C Compressor Clutch 24 Cooling Fan 25 Electronic Ignition 26 Transaxle
Mini relay Description
9 Cooling Fan 2
10 Cooling Fan 3
11 Starter Solenoid
12 Cooling Fan 1
13 Ignition Main
14 Air Pump (Optional)
Micro
relay
 Description
15 A/C Clutch
16 Horn
17 Not Used
18 Not Used
19 Fuel Pump
Mini fuse Description
20 Air Pump (Optional)
21 Generator
22 ECM
23 A/C Compressor Clutch
24 Cooling Fan
25 Electronic Ignition
26 Transaxle
Mini relay Description 9 Cooling Fan 2 10 Cooling Fan 3 11 Starter Solenoid 12 Cooling Fan 1 13 Ignition Main 14 Air Pump (Optional) Micro relay Description 15 A/C Clutch 16 Horn 17 Not Used 18 Not Used 19 Fuel Pump Mini fuse Description 20 Air Pump (Optional) 21 Generator 22 ECM 23 A/C Compressor Clutch 24 Cooling Fan 25 Electronic Ignition 26 Transaxle

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