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 and circuit breakers. This greatly reduces the chance of damage 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 you replace a bad fuse with a new one of the identical size and rating.

There are four fuse blocks in your vehicle: the main and auxiliary instrument panel fuse blocks, the underhood fuse block and the rear fuse block.

Main and Auxiliary Instrument Panel Fuse Blocks

The main and auxiliary instrument panel fuse blocks are located under the instrument panel, on the passenger's side of the vehicle. Lamps, connectors and the HVAC duct temperature sensors may need to be disconnected and removed to allow access to these fuse blocks.

Remove the hush panel on the passenger's side to reveal the fuses by performing the following steps:

  1. Remove the two screws located along the front edge of the panel.
  2. Lower the hush panel.
  3. Remove the fuse block cover.
  4. Place the wide end of the fuse puller over the plastic end of the fuse.
  5. Squeeze the ends over the fuse and pull it out.

When finished, reinstall the fuse block cover and the hush panel. Reinstall lamps, connectors and HVAC duct temperature sensors if they were removed.

Main Instrument Panel Fuse Block


Object Number: 810938  Size: B4

Fuses

Usage

SBM

Interior Lamps

PDM

PDM Module

A/C

HVAC Motor, HVAC Mix Motors

IGN SEN

Auto Dimming Mirror, Driver HTS Seat, Rear Defog Relay, MEM Module, Cool LVL Sensor, Pass Heated Seat

ELC

HVAC Flat Pk Mtrs, Electronic Level Control Sensor, Electronic Level Control Sensor (R Bec)

ABS

Anti-Lock Brake System Module

HVAC

HVAC Main Con Head,

HVAC Programmer, Instrument Panel Cluster

CR CONT

Stepper Motor Cruise, Cruise Switch

HUD

Head-Up Display Switch, Head-Up Display

CSTR/SBM

HVAC Programmer, Instrument Panel Cluster, SBM (275 to LCM) (1135 to BTSI SL)

LP PK L

Underhood Lamp, Left Park/Sidemarker, Left Park/Turn Lamp, SBM, Left Tail Signal Lamp, Left Tail/Stoplamp, Left Rear Sidemarker

LP PK R

Right Park/Sidemarker Lamp, Right ParK/Turn Lamp, Right Tail/Sign Lamp, Right Tail/Stoplamp, Right Rear Sidemarker, Stop/Taillamp, Tail/Signal Lamp, License Lamp, RFA

RUN

Run/Accessory

WSW

Wiper Motor

Blank

Not Used

WSW/RFA

Wiper Switch, RFA, Rain Sense

B/U LP

Auto Dimming Mirror, Back-Up Lamps

Auxiliary Instrument Panel Fuse Block


Object Number: 810855  Size: A3

Fuses

Usage

PERIM LP

Perimeter Lamps

ACCY

Accessory

IGN 3

Ignition 3

Underhood Fuse Block


Object Number: 822602  Size: B3

There are additional fuses located in the engine compartment on the passenger's side of the vehicle. See Engine Compartment Overview for more information on location.

To check the fuses in this underhood fuse block, turn the knob counterclockwise and remove the cover. There is a chart inside the cover that explains the features and controls governed by each fuse and relay.


Object Number: 810936  Size: B3

Fuses

Usage

1

Not Used

2

SBM, LCM

3

Turn Signal

4

Pre-Oxygen Sensor, Post-Oxygen Sensor

5

Air Bag (SIR)

6

Powertrain Control Module

7

Air Conditioning Clutch

8

Ignition Feed

9

Horn Relay

10

Spare

11

Spare

12

Injectors #1-6

13

C-31

14

Right High Beam

15

Spare

16

Left High Beam

17

Spare

18

Right Low Beam

19

Left Low Beam

20

Stop

21

Fuel Pump Relay (Wire in BEC)

22

Run/Crank

23

Powertrain Control Module

24

Parking Lamps

25

Hazard Flashers

26

Spare

27

Spare

28

ABS #2

Relays

Usage

29

Ignition

30

Horn

31

Cooling Fan 1

32

Starter

33

Not Used

34

Cooling Fan SP

35

Cooling Fan 2

36

Air Conditioning Clutch

37

Fuel Pump

Fuses

Usage

38

Bat #1

39

Blower Motor

40

Cooling Fan 1

41

Headlamp

42

BAT #2

43

Ignition

44

Starter

45

ABS

46

Fuse Puller