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 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 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 don't have a spare fuse, you can borrow one that has the same amperage. 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 correct amperage. Replace it as soon as you can.

Center Console Fuse Block


Object Number: 953442  Size: A3

The center console fuse block is located on the center console between the two seats.

To remove the fuse block cover and access the fuses, do the following:

  1. Move the passenger's seat all the way forward and tilt the seatback forward. See Power Seats and Seatback Latches for more information.
  2. Pull the handle on the fuse block cover toward you and then slide it to the side. You will then be able to remove the cover completely.
  3. To reinstall the cover, slide it to the side until it is lined up with the access hole. Then, push on the fuse panel cover until it latches into place.

Object Number: 1273916  Size: B5

Fuses

Usage

03

Rear Window Defogger

04

Truck Body Controller

05

Rear Window Defogger

06

Driver Seat Module

07

Truck Body Controller

09

Blank

10

Driver's Door Module, Power Mirrors

11

Amplifier

12

Blank

13

Daytime Running Lamps (DRL)

14

Driver's Side Rear Parking Lamp

15

Accessory Power Outlets

16

Center High-Mounted Stop Lamp

17

Passenger's Side Rear Parking Lamp

19

Blank

20

Blank

21

Locks

22

Blank

23

Blank

25

Blank

26

Blank

27

HomeLink® System

28

Roof Door Module

29

Blank

31

Truck Body Controller

32

Remote Keyless Entry (RKE)

33

Windshield Wipers

34

Stoplamps

35

Blank

36

Climate Control System, Driver's Door Unlock

37

Front Parking Lamps

38

Driver's Side Turn Signal

39

Climate Control System

40

Truck Body Controller

41

Radio

42

Trailer Parking Lamps

43

Passenger's Side Turn Signal

44

Blank

46

Accessory Power Outlets

47

Ignition

48

Blank

49

Blank

50

Truck Body Controller, Ignition

51

Brakes

52

Blank

Relays

Usage

18

Locks

24

Unlock

30

Parking Lamps

45

Rear Window Defogger, Outside Power Heated Mirrors

Circuit Breakers

Usage

01

Roof & Door Module

02

Roof Pump

08

Power Seats

Engine Compartment Fuse Block


Object Number: 953481  Size: A3

The fuse block is located under the hood in the engine compartment on the driver's side of the vehicle. See Engine Compartment Overview for more information on location.

To remove the fuse block cover and access the fuses, do the following:

  1. To remove the primary fuse block cover, press in on the two locking tabs and then lift the cover off.
  2. Lift up on the secondary cover to remove it.
  3. Reverse the steps to reinstall the covers.

Object Number: 1273910  Size: B4

Fuses

Usage

1

Air Conditioning

2

Automatic Transmission Shift Lock Control System

3

Canister, Fuel System

4

Ignition

5

Starter

6

Ignition

7

Driver's Side High Beam Headlamp

8

Passenger's Side High Beam Headlamp

9

Ignition

10

Instrument Panel Cluster, Driver Information Center (DIC)

11

Driver's Side Low Beam Headlamp

12

Passenger's Side Low Beam Headlamp

13

Powertrain Control Module (PCM)

14

Air Bag System

15

Truck Body Controller

16

Truck Body Control, Ignition

17

Driver's Side Stoplamp/Turn Signals

18

Passenger's Side Stoplamp/Turn Signals

19

Back-up Lamps

20

Throttle Actuator Control (TAC)

21

Fog Lamps

22

Horn

23

Injector A

24

Injector B

25

Oxygen Sensor A

26

Oxygen Sensor B

27

Windshield Washer

28

Cigarette Lighter

29

Powertrain Control Module (PCM)

30

Blank

31

Cargo Cover Release

32

Hazard Warning Flashers

33

Stoplamps

44

Engine Cooling Fan

45

Climate Control Fan

46

Ignition A

47

Ignition B

48

Anti-lock Brake System (ABS)

49

Body Fuse

Relays

Usage

34

Air Conditioning

35

Fuel Pump

36

Fog Lamps

37

High Beam Headlamps

38

Cargo Cover Release

39

Horn

40

Windshield Washer

41

Headlamp Driver Module

42

Ignition

43

Starter

Relay Center

There is a relay center located in the area where the convertible top is stored when it is open. To access the relay center, do the following:


    Object Number: 1313709  Size: B3
  1. Open the convertible top until the roof tonneau and the boot cover panel are upright so that you can reach into the convertible top storage area as shown. See "Convertible Top Operation" under Convertible Top for more information.

  2. Object Number: 1313705  Size: B3
  3. Locate the water-tight box that houses the relay center and remove the four nuts that secure the cover to the backside of the passenger compartment.
  4. Press in the tabs on the sides of the cover and lift to remove the cover.

  5. Object Number: 1313695  Size: B3
  6. Locate the relay center inside the box. It is located toward the driver's side of the vehicle.
  7. Press in the tabs at each end of the relay center cover and lift to remove.
  8. Reverse the steps to reinstall the relay center cover and close the water-tight box.

Object Number: 1313716  Size: A4

Following is a list of relays contained in the relay center.

Relays

Usage

Driver's Door Lock

RT DRL

Passenger's Side Daytime Running Lamps (DRL)

LT DRL

Driver's Side Daytime Running Lamps (DRL)

Rear Window Defogger