Page 392 of 438
Fuses Usage
10 Fuel Pump
11Engine Control Module,
Transmission Control Module
12 Odd Injectors
13 Magnetic Ride Control
14 Emission Controls
15 Air Conditioning Compressor
16 Even Injectors
17 Windshield Washer
18 Headlamp Washer
19 Right Low Beam Headlamp
21 Left Low Beam Headlamp
22 Fog Lamp
23 Right High Beam Headlamp
24 Left High Beam Headlamp
25 Not Used
26 Battery 3
27 Anti-Lock Brakes
28 Climate Controls
29 Battery 2
30 Starter
31 Audio Ampli er
32 Cooling Fan
33 Battery 1Fuses Usage
48 Spare
49 Spare
50 Spare
51 Spare
52 Spare
53 Not Used
54 Fuse Puller
Relays Usage
34 Horn
35 Air Conditioning Compressor
36 Windshield Washer
37 Parking Lamps
38 Fog Lamps
39 High Beam Headlamps
40 Rear Window Defogger
41 Windshield Wiper High/Low
42 Wiper RUN/ACCESSORY Power
43 Starter/Crank
44 Ignition 1
45 Windshield Wiper On/Off
46 Headlamp Washer
47 Low Beam Headlamps
6-84
Page 403 of 438

At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. SeeParking Brake on page 2-28if necessary.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The starter
should work only in PARK (P) or NEUTRAL (N).
If the starter works in any other position, contact
your GM Goodwrench dealer for service.
Transmission Shift Lock Control
System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle. It should be parked on a level
surface.
2. Firmly apply the parking brake. SeeParking Brake
on page 2-28if necessary.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off and without applying the regular
brake, try to move the shift lever out of PARK (P)
with normal effort. If the shift lever moves out
of PARK (P), contact your GM Goodwrench dealer
for service.
7-9
Page 404 of 438

Parking Brake and Transmission Park (P)
Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in
case it begins to roll. Be ready to apply the
regular brake at once should the vehicle begin
to move.Park on a fairly steep hill, with the vehicle facing downhill.
Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake’s holding ability: With the
engine running and transmission in NEUTRAL (N),
slowly remove foot pressure from the regular brake
pedal. Do this until the vehicle is held by the parking
brake only.
To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK (P). Then
release the parking brake followed by the
regular brake.
Contact your GM Goodwrench dealer if service
is required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
7-10
Page 405 of 438