fuse BUICK CENTURY 2005 User Guide

Headlamp Wiring
The headlamp wiring is protected by a circuit breaker in
the underhood fuse block. An electrical overload will
cause the headlamps to go on and off, or in some cases
to remain off. If this happens, have the headlamp
system checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by a circuit
breaker and a fuse. If the motor overheats due to heavy
snow, etc., the wiper will stop until the motor cools.
If the overload is caused by some electrical problem,
have it xed.
Power Windows and Other
Power Options
Circuit breakers in the instrument panel fuse block
protect the power windows and other power accessories.
When the current load is too heavy, the circuit breaker
opens and closes, protecting the circuit until the
problem is xed.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from
short circuits by a combination of fuses, circuit breakers
and in the fuse block wiring itself. This greatly reduces
the chance of res caused by electrical problems.
Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure
a bad fuse is replaced with a new one of the identical
size and rating.
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 fuse block.
5-91

Circuit
BreakersUsage
TIRE RESET Tire Ination Monitor Reset Button
PWR/WNDW
PWR S/ROOFPower Windows, Power Sunroof
R/DEFOG Rear Window Defogger
PWR/ SEAT Power Seat
Blank Not Used
Fuses Usage
PRK/LCK Ignition Key Solenoid
Blank Not Used
Blank Not Used
PCM, BCM,
U/HIgnition Signal: Hot in Run and Start,
Powertrain Control Module, Body
Control Module, Underhood Relay
RADIO PREM.
SOUNDNot Used
PWR MIR Power Mirrors
Blank Not Used
INT/ILLUM Panel Dimming
Blank Not Used
IGN 0: CLSTR,
PCM & BCMIgnition Signal: Hot in Run,
Unlock and Start; Cluster,
Powertrain Control Module,
Body Control Module
Blank Not Used
Blank Not Used
Blank Not Used
ACCY PWR
BUSInterior Lamps
DR/ LCK Door Locks
5-92

Fuses Usage
Blank Not Used
R/LAMPS Taillamps, License Plate Lamps
Blank Not Used
Blank Not Used
CRUISE Cruise Control
Blank Not Used
CLSTR Instrument Panel Cluster
LTR Cigarette Lighter
STOP LAMPS Stoplamps
ONSTAR OnStar
®
PRK/LGHT Parking Lamps
Blank Not Used
CRNK SIG,
BCM, CLSTRCrank Signal, Body Control Module,
Cluster, Powertrain Control Module
HVACIgnition Signal, Heating, Ventilation,
and Air Conditioning Control Head
BTSI (REGAL) Not Used
AIR BAG Air Bag
Fuses Usage
BCM PWR Body Control Module
HAZARD Hazard Warning Flashers
LH HTD SEAT Not Used
Blank Not Used
BCM ACCYIgnition Signal: Hot in ACCESSORY
and RUN, Body Control Module
Blank Not Used
LOW BLWR Low Blower
ABS Anti-Lock Brakes
TRN SIG Turn Signals, Cornering Lamps
RADIO, HVAC,
RFA, CLSTR
ALDLRadio, Heating Ventilation and
Air Conditioning Head; Remote
Keyless Entry, Cluster
HI BLWR High Blower
RH HTD SEAT Not Used
STR/WHL/
CNTRLAudio Steering Wheel Controls
WPR Windshield Wipers
5-93

Underhood Fuse Block
Some fuses and relays are located in the underhood
fuse block on the passenger’s side of the vehicle in the
engine compartment. SeeEngine Compartment
Overview on page 5-12for more information on location.
Fuses Usage
1 Anti-Lock Brake System
2 Starter Solenoid
3 Power Seat, Rear Window Defogger
4High Blower, Hazard Flasher,
Stoplamps, Power Mirror,
Door Locks
Fuses Usage
5Ignition Switch, Stoplamps,
Anti-Lock Brake System, Turn
Signals, Cluster, Air Bag, Daytime
Running Lamps Module
6 Cooling Fan
7Retained Accessory Power,
Remote Keyless Entry, Data Link,
Heating, Ventilation, and Air
Conditioning Head; Cluster, Radio,
Cigarette Lighter
8Ignition Switch, Wipers, Audio
Steering Wheel Controls, Body
Control Module, Power Windows,
Sunroof, Heating, Ventilation, and
Air Conditioning Controls; Daytime
Running Lamps, Rear Window
Defogger Relay
Relays Usage
9 Cooling Fan 2
10 Cooling Fan 3
11 Starter Solenoid
12 Cooling Fan 1
13 Ignition Main
14 Air Pump (Optional)
5-94

Relays Usage
15 Not Used
16 Horn
17 Fog Lamps
18 Not Used
19 Fuel Pump
Fuses Usage
20 Not Used
21 Generator
22 Engine Control Module
23 Air Conditioner Compressor Clutch
24 Cooling Fan
25 Electronic Ignition
26 Transaxle
27 Horn
28 Fuel Injector
29 Oxygen Sensor
Fuses Usage
30 Engine Emissions
31 Fog Lamps
32 Right Headlamp
33 Rear Compartment Release
34 Parking Lamps
35 Fuel Pump
36 Left Headlamp
37 Not Used
38 Not Used
39 Not Used
40 Not Used
41 Not Used
42 Not Used
43 Not Used
§Air Conditioner Compressor
Clutch Diode
5-95

D
Daytime Running Lamps/Automatic
Headlamp System.......................................3-14
Defensive Driving............................................. 4-2
Delayed Entry Lighting.....................................3-16
Delayed Exit Lighting.......................................3-17
Delayed Headlamps........................................3-13
Doing Your Own Service Work........................... 5-4
Dome Lamp...................................................3-16
Door
Locks........................................................2-10
Power Door Locks.......................................2-11
Programmable Automatic Door Locks.............2-11
Trunk Ajar Warning Light..............................3-42
Driver
Position, Safety Belt.....................................1-12
Driving
At Night.....................................................4-16
City...........................................................4-20
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Freeway.....................................................4-21
Hill and Mountain Roads..............................4-24
In Rain and on Wet Roads...........................4-17
Rocking Your Vehicle to Get it Out.................4-31
Winter........................................................4-26
Dual Automatic Climate Control System.............3-21
Dual Climate Control System............................3-18
E
Electrical System
Add-On Equipment......................................5-90
Fuses and Circuit Breakers...........................5-91
Headlamp Wiring.........................................5-91
Instrument Panel Fuse Block.........................5-91
Power Windows and Other Power Options......5-91
Underhood Fuse Block.................................5-94
Windshield Wiper Fuses...............................5-91
Engine
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-39
Change Engine Oil Light...............................3-40
Check and Service Engine Soon Light............3-36
Coolant......................................................5-22
Coolant Heater............................................2-20
Coolant Temperature Gage...........................3-35
Coolant Temperature Warning Light................3-35
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-27
Oil .............................................................5-13
Overheated Protection Operating Mode...........5-26
Overheating................................................5-25
Starting......................................................2-19
Enhanced Traction System (ETS)........................ 4-9
Warning Light.............................................3-34
Entry Lighting.................................................3-16
4

Event Data Recorders (EDR)............................. 7-9
Extender, Safety Belt.......................................1-26
Exterior Lamps...............................................3-13
F
Filter
Engine Air Cleaner......................................5-18
Finish Damage...............................................5-88
Fixed Mast Antenna........................................3-66
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-69
Flat Tire, Changing.........................................5-70
Flat Tire, Storing.............................................5-79
Fluid
Automatic Transaxle.....................................5-19
Power Steering...........................................5-34
Windshield Washer......................................5-35
Folding Rear Seat............................................ 1-6
Front Storage Area.........................................2-33
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-42
Gasoline Octane........................................... 5-5Fuel (cont.)
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-43
Fuses
Fuses and Circuit Breakers...........................5-91
Instrument Panel Fuse Block.........................5-91
Underhood Fuse Block.................................5-94
Windshield Wiper.........................................5-91
G
Gage
Engine Coolant Temperature.........................3-35
Fuel..........................................................3-42
Speedometer..............................................3-30
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Glove Box.....................................................2-33
GM Mobility Program for Persons
with Disabilities............................................. 7-6
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-5
Headlamp
Aiming.......................................................5-45
5

V
Vehicle
Control........................................................ 4-6
Damage Warnings........................................... iv
Service Soon Light......................................3-42
Symbols......................................................... iv
Vehicle Data Collection and Event
Data Recorders............................................. 7-9
Vehicle Identication
Number (VIN).............................................5-90
Service Parts Identication Label...................5-90
Ventilation Adjustment......................................3-26
Visors...........................................................2-15
W
Warning Lights, Gages and Indicators................3-28
Warnings
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. ivWasher Fluid, Low Warning Light......................3-41
Wheels
Alignment and Tire Balance..........................5-67
Replacement...............................................5-67
Where to Put the Restraint...............................1-36
Windows.......................................................2-14
Power........................................................2-15
Windshield
Wiper Blades, Cleaning................................5-87
Windshield Washer........................................... 3-9
Fluid..........................................................5-35
Windshield Wiper
Blade Replacement......................................5-52
Fuses........................................................5-91
Windshield Wipers......................................... 3-8
Winter Driving................................................4-26Y
Your Vehicle and the Environment....................... 6-2
12