GM Service Manual Online
For 1990-2009 cars only

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 fires 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


Object Number: 809542  Size: A3

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.


Object Number: 812561  Size: B4

Circuit Breakers

Usage

TIRE RESET

Tire Inflation Monitor Reset Button

PWR WINDOWS

Power Windows

PWR SUNROOF

Power Sunroof

REAR DEFOG

Rear Window Defogger

POWER SEATS

Power Seats

Blank

Not Used

Fuses

Usage

PARK LOCK

Ignition Key Solenoid

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

Blank

Not Used

INADV POWER BUS

Interior Lamps

DOOR LOCKS

Door Locks

Blank

Not Used

TAIL LAMPS, LIC LAMPS

Taillamps, License Plate Lamps

RADIO

Radio

HEATED MIRROR

Not Used

CRUISE

Cruise Control

Blank

Not Used

CLUSTER

Instrument Panel Cluster

CIGAR LTR

Cigarette Lighter

STOP LAMPS

Stoplamps

ONSTAR

OnStar®

FRT PARK LPS

Front Parking Lamps

Blank

Not Used

CRANK SIGNAL, BCM, CLUSTER

Crank Signal, Body Control Module, Cluster, Powertrain Control Module

HVAC

Ignition Signal, Heating Ventilation Air Conditioning Control Head

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, Heating Ventilation Air Conditioning Head, Remote Keyless Entry, Cluster

HIGH BLOWER

High Blower

RH HEATED SEAT

Passenger's Heated Seat

STRG WHL CONT

Audio Steering Wheel Controls

WIPER

Windshield Wipers

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. See Engine Compartment Overview or more information on location.


Object Number: 812563  Size: B4

Fuses

Usage

1

Anti-Lock Brake System

2

Starter Solenoid

3

Power Seats, Rear Window Defogger Heated Seats

4

High Blower, Hazard Flasher, Stoplamps, Power Mirror, Door Locks

5

Ignition Switch, BTSI, Stoplamps, Anti-Lock Brake System, Turn Signals, Cluster, Air Bag, Daytime Running Lamps Module

6

Cooling Fan

7

Retained Accessory Power, Keyless Entry, Data Link, Heating Ventilation Air Conditioning Head, Cluster, Radio, Cigarette Lighter

8

Ignition Switch, Wipers, Radio, Steering Wheel Controls, Body Control Module, Power Windows, Sunroof, Heating Ventilation 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)

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

A/C Compressor Clutch

24

Cooling Fan

25

Electronic Ignition

26

Transaxle

27

Horn

28

Fuel Injector

29

Oxygen Sensor

30

Engine Emissions

31

Fog Lamps

32

Headlamp (Right)

33

Rear Compartment Release

34

Parking Lamps

35

Fuel Pump

36

Headlamp (Left)

37

Not Used

38

Not Used

39

Not Used

40

Not Used

41

Not Used

42

Not Used

43

Not Used

SYMBOL

A/C Compressor Clutch Diode