GM Service Manual Online
For 1990-2009 cars only

The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers, and fusible thermal links.

Look at the silver-colored 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 identical size and rating.

If you ever have a problem on the road and do not have a spare fuse, you can borrow one that has the same amperage or use one of the spare fuses in the underhood fuse block. 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 right amperage. Replace it as soon as you can.

There are two fuse blocks in your vehicle, the instrument panel fuse block and the underhood fuse block.

Instrument Panel Fuse Block


Object Number: 809557  Size: A3

The instrument panel fuse block is located to the right of the glove box on the end of the instrument panel.

Pull the door open to access the instrument panel fuse block.


Object Number: 808218  Size: B3

Fuse

Usage

SWC BACKLIGHT

Steering Wheel Radio Control Switches (Illumination)

PCM/PASS KEY/CLUSTER

Instrument Cluster to PRNDL Indicators

PWR MIRROR

Power Remote Control Mirror Switch

CRUISE

Cruise Control Module, Switch and Release Switch

Blank

Not Used

PCM/CRANK

Powertrain Control Module (PCM), Ignition Crank

PASS KEY

PASS-Key® III System

PWR LOCK

Power Door Locks

HTD MIRROR

Heated Mirrors

RH T/LP

Not Used

RR FOG LP

Not Used

CIGAR/DIC/APO FRT

Cigarette Lighter, DIC, Front Auxiliary Power Outlets, Data Link

T/SIG

Turn Signal Switch

PWR QTR VENT

Interior Lamp and Multifunction Switch (Power Vent Switch), Auto Level

FRT/WPR/WSHR

Windshield Wiper/Washer Motor and Switch

HAZARD

Hazard Switch

RR PWR SCKT

Rear Electric Accessory Plug Housing

DRL

Daytime Running Lamp Control Module

LH T/LP

Not Used

RR DEFOG/HTD MIRROR

Rear Window Defogger Relay, Heated Mirrors

ON STAR

OnStar®

SIR

Inflatable Restraint Control Module

HVAC BLOWER

Heater-A/C Control

MALL CLUSTER

Instrument Cluster, Body Control Module, Electronic Level Control (ELC) Sensor and Relay, Theft, Door Ajar

STOP LAMP

Stoplamp Switch

CLUSTER BATT

Module/Electronic Brake Control Module/Electronic Brake Traction Control Module (EBCM/EBTCM)

ENHANCED EVAP/AWD

Evaporative Emissions (EVAP) Canister Vent Solenoid Valve, All-Wheel Drive (AWD)

Blank

Not Used

ELC/TRAILER

ELC Air Compressor and ELC Height Sensor, Trailer Harness

CTSY LAMP

Courtesy Lamp

IGN 1

BCM, Electronic Brake Control Indicator Lamp Driver Module, Instrument Panel Cluster, Rear Side Door Actuator Control Module, Rear Windows, Rear Parking Aid

RR HVAC TEMP CONT

Rear HVAC-A/C Control

RR WPR/WSHR

Rear Window Wiper Motor, Rear Window Wiper/Washer and Multifunction Switch (Rear Window Wiper/Washer Switch)

LH HEADLP LOW

Not Used

LH HEADLP HIGH

Not Used

Blank

Not Used

Blank

Not Used

Blank

Not Used

RAP RELAY

Retained Accessory Power (RAP) Relay

Blank

Not Used

HVAC/DIC/DRL/HEATED SEAT

Air Inlet Actuator, DIC Display, DRL Control Module, Heater-A/C Control, Temperature Door Actuator (Front) and Rear Window Defogger Relay

BCM PRGRAM

BCM Programming

RH HEAD LP LOW

Not Used

RH HEAD LP HIGH

Not Used

PCM/ABS

IGN MAIN Relay and PCM, Electronic Brake Control Module

Circuit Breaker

Usage

HEADLAMP

Daytime Running Lamps (DRL) Control Module, Headlamp and Instrument Panel Dimmer Switch

PWR SLD DR

Power Sliding Door

PWR WDO

Front Power Windows

PWR/HEATED SEAT PSD

Six-Way Power Seats and Rear Side Door Actuator Motor

FRT HVAC HI BLWR

Blower Motor Hi Speed Relay Module

Underhood Fuse Block


Object Number: 808362  Size: A2

This fuse block is located in the engine compartment, in front of the windshield washer fluid reservoir. See Engine Compartment Overview for more information on location.

The fuses marked spare are available if a replacement fuse is needed.

To remove the cover, turn the knob counterclockwise and lift up.

When finished, to put the cover back on, turn the knob clockwise to tighten it. Make sure that the remote positive (+) terminal cover is on correctly.


Object Number: 808216  Size: B2

Fuse

Usage

1

Coolant Fans

2

Not Used

3

Circuit Breakers: Front Comfort Controls Hi Blower, and Headlamp Fuses (Instrument Panel): Hazard and Stoplamp, PASS-Key

4

Circuit Breaker: Power Seat and Power Sliding Door. Fuses (Instrument Panel): Electronic Level Control and Rear Defogger, Trailer, Fog Lamps

5

Ignition Switch to Fuses (Instrument Panel): ABS/TCS Ignition, Cruise, DRL, Electronic PRNDL, Ignition 1, AWD, PSD, Air Bag, Turn Signal and Powertrain Control Module [IGN MAIN Relay (Underhood Fuse Block: A/C Clutch, Electronic Ignition, Ignition 1-U/H, INJ, TCC)]

6

Coolant Fans

7

Fuses (Instrument Panel): ABS Module Battery, Cigarette Lighter, Courtesy Lamps, Front Power Socket, Power Locks, Power Mirrors and Right Rear Power Socket, OnStar, RAP

8

Ignition Switch to Fuses (I/P): Body Control Module Program, Front Comfort Controls Low/Medium Blower, Front Wiper/Washer, HVAC/DRL, MALL/Radio/DIC, Power Quarter Vent, Rear HVAC, Rear Wiper/Washer. SWC Accessory and Power Window Circuit Breaker, RAP

18

Fuel Injectors 1-6

19

Not Used

20

Not Used

21

Evaporative Emissions (EVAP) Canister Purge Valve, Heated Oxygen Sensors 1 and 2, Mass Air Flow (MAF) Sensor

22

Not Used

23

Not Used

24

Not Used

25

Ignition Control Module (ICM)

26

Not Used

27

Transaxle Range Switch to Back-up Lamps

28

A/C Clutch Relay to A/C Compressor Clutch Oil

29

Driver Information Display, Heater A/C Control, Radio, Rear (LH and RH) Side Door Actuator Control Motor, Remote Control Door Lock Receiver (RCDLR), Security Indicator Lamp and Theft-Deterrent Shock Sensor

30

Generator

31

Automatic Transaxle (Torque Converter Clutch Solenoids) Stoplamp Switch to Powertrain Control Module

32

Fuel Pump Relay

33

Powertrain Control Module

34

Not Used

35

Fog Lamp Relay

36

Horn Relay

37

Daytime Running Lamps (DRL) Control Module, Headlamps and Instrument Panel Dimmer Switch Theft-Deterrent Relay to Headlamps

38

Not Used

39

AIR

40

Mini Fuse Puller

Air Conditioning Clutch Diode

Relay

Usage

9

Right Fan 1, Left Fan 2

10

Left Fan 2

11

Fuses: A/C Clutch, Ignition 1-U/H, Electronic Ignition, TCC, Injectors

12

Right Fan 1, Left Fan 2

13

A/C Clutch

14

Fuel Pump

15

Not Used

16

Horn

17

Left Fog Lamp, Right Fog Lamp, Fog Lamp Indicator