GM Service Manual Online
For 1990-2009 cars only

The wiring circuits in your vehicle are protected from short circuits by fuses, circuit breakers and thermal links in the wiring itself. This greatly reduces the chance of fires caused by electrical problems.

Look at the metallic band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the correct size.

If you ever have a problem on the road and don't have a spare fuse, you can borrow one. Just pick some feature of your vehicle that you can get along without -- like the radio or cigarette lighter -- and use its fuse, if it is the size you need. Replace it as soon as you can.

Before replacing a fuse, turn every vehicle electrical switch off.

There are two fuse blocks in your vehicle: the instrument panel fuse block and the engine compartment fuse block.

Instrument Panel Fuse Block

This fuse block is located under the driver's side of the instrument panel. The fuses here protect each separate circuit including headlamps. There are spare fuses inside the fuse box. If you have electrical failure, check here first.


Object Number: 1272881  Size: B3

Fuses

Usage

FLASHER UNIT

Hazard Warning Flashers

POWER WINDOWS

Power Window Switches

POWER SEATS

Power Seat Controls

SPARE

Spare

PARK LAMPS

Parking Lamps

STOP LAMPS

Stop Lamps

INTERIOR ILLUM.

Interior light Controls

HAZARD WARNING

Hazard Warning Flashers

SPARE

Spare

HORN

Horn

IGNITION

Ignition Switch

INSTRUMENT ILLUM.

Instrument Panel Lighting

TURN SIGNAL, BACK UP LAMPS

Turn Signal Lamp, Back Up Lamps

HVAC CONT. INSTRUM. & TRIP COMP

Heater Controls, Trip Computer

CIGAR LIGHTER

Cigarette Lighter

ENGINE CONT. CRS CONT, PWR MIRROR

Cruise Control System, Power Mirrors

RADIO, CELL PHONE

Radio System, Cell Phone

ACC SOCKET

Accessory Power Outlet

FRONT WIPER WASHER

Front Windshield Wiper Washer

SPARE

Spare

PWR DOOR LOCKS, WINDOWS & THEFT HORN

Power Door Locks, Power Windows, Theft System, Horn

INSTRUMENTS

Instruments

SPARE

Spare

RADIO & CELL PHONE

Radio System, Cell Phone

SUB WOOFER & AMPLIFIER

Sub Woofer and Amplifier

SPARE

Spare

AIRBAG

Airbag

ABS & TRACTION CONT.

Anti-Lock Brake System, Traction Control System

SPARE

Spare

SPARE

Spare

SPARE

Spare

Relays

Usage

ACC RELAY

Accessory Power Outlet

IGNITION RELAY

Ignition Switch

POWER WINDOW RELAY

Power Windows

BLOWER INHIBIT RELAY

Blower

PARK LAMPS RELAY

Parking Lamps

INTERIOR ILLUM RELAY

Interior Light Controls

Engine Compartment Fuse Block

The engine compartment fuse block is located in the engine compartment and protects all electrical loads. See Engine Compartment Overview for more information on location.

For access to the main fuses, pull off the cover.


Object Number: 1250516  Size: B3

Fuses

Usage

INJ/IGN

Fuel Injectors and Ignition Modules

INJ/IGN

Fuel Injectors and Ignition Modules

ENG SENSORS

Engine Sensors

AUTO TRANS

Automatic Transmission

LH HEADLAMP

Left Headlamp

RH HEADLAMP

Right Headlamp

ENG. CONT. BCM

Engine and BCM

FUEL PUMP

Fuel Pump

RAD FAN 1 F/L

Engine Cooling Small Fan

BLOWER F/L

Blower Fan

MAIN F/L

Main

ENGINE F/L

Engine

ABS F/L

Anti Lock Brakes

LIGHTING F/L

Lighting

RAD FAN 2 F/L

Engine Cooling Large Fan

REAR WINDOW

Heated Rear Window

SPARE

Spare

SPARE

Spare

T-RELAX

Throttle Relaxer Module

Relays

Usage

FUEL PUMP RELAY

Fuel Pump

FOG LAMP CANCEL RELAY

Fog Lamp Cancel

FOG LAMP RELAY

Fog Lamp

CRUISE CANCEL RELAY

Cruise Control Cancel

HIGH BEAM RELAY

High-Beam Headlamp

DAYTIME RUNNING LAMP RELAY

Daytime Running Lamps

LOW BEAM RELAY

Low-Beam Headlamp

A/C RELAY

Air Conditioning

HORN RELAY

Horn

RAD FAN LOW SPEED RELAY

Engine Cooling Fan 1

RAD FAN HIGH SPEED RELAY

Engine Cooling Fan 2

PCM BRAKE INPUT RELAY

Brake System

ENGINE CONT. RELAY

Engine Controls

HEATED REAR WINDOW RELAY

Rear Window Defogger

BLOWER RELAY

Blower

START RELAY

Start