Page 419 of 470

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
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.
Fuse Usage
SWC
BACKLIGHTSteering Wheel Radio Control
Switches (Illumination)
PCM/PASS
KEY/CLUSTERInstrument Cluster to PRNDL
Indicators
PWR MIRROR Power Remote Control Mirror Switch
CRUISECruise Control Module, Switch and
Release Switch
Blank Not Used
PCM/CRANKPowertrain Control Module (PCM),
Ignition Crank
PASS KEY PASS-Key
®III System
PWR LOCK Power Door Locks
5-93
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Fuse Usage
5Ignition Switch to Fuses (Instrument
Panel): ABS/TCS Ignition, Cruise,
DRL, Electronic PRNDL, Ignition 1,
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
7Fuses (Instrument Panel): ABS
Module Battery, Cigarette Lighter,
Courtesy Lamps, Front Power
Socket, Power Locks, Power Mirrors
and Right Rear Power Socket,
OnStar, RAP
8Ignition 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 UsedFuse Usage
20 Not Used
21Evaporative 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
27Transaxle Range Switch to Back-up
Lamps
28A/C Clutch Relay to A/C
Compressor Clutch Oil
29Driver 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
5-97
Page 424 of 470
Fuse Usage
31Automatic 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
37Daytime 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
11Fuses: 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
17Left Fog Lamp, Right Fog Lamp,
Fog Lamp Indicator
5-98
Page 436 of 470

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 2-36if
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.
Automatic Transaxle 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 2-36if necessary.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to RUN, but do
not start the engine. 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.
6-10
Page 437 of 470

Ignition Transaxle Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK in each shift lever position.
The ignition should turn to LOCK only when the
shift lever is in PARK (P).
The key should come out only in LOCK.
Contact your GM Goodwrench
®dealer if service is
required.
Parking Brake and Automatic Transaxle
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 transaxle 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.
6-11
Page 463 of 470