Page 317 of 363

6-60
Electrical System
Add-On Electrical Equipment
NOTICE:
Don't add anything electrical to your vehicle
unless you check with your dealer first. Some
electrical equipment can damage your vehicle
and the damage wouldn't be covered by your
warranty. Some add
-on electrical equipment
can keep other components from working as
they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your vehicle, see ªServicing
Your Air Bag
-Equipped Vehicleº in the Index.
Headlamp Wiring
The headlamp wiring is protected by separate left and
right headlamp fuses in the underhood fuse block.
An electrical overload will cause a lamp to go off and
remain off. If this happens, have your headlamp system
checked right away.
Windshield Wipers
The windshield wiper motor is protected by a circuit
breaker and a fuse. If the motor overheats due to heavy
snow or ice, the wiper will stop until the motor cools.
If the overload is caused by some electrical problem,
have it fixed.
Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power
windows and other power accessories. When the current
load is too heavy, the circuit breaker opens and closes,
protecting the circuit until the problem is fixed.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected
from short circuits by a combination of fuses, circuit
breakers and fusible thermal links in the wiring itself.
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.
Page 318 of 363
6-61
Instrument Panel Fuse Block
These fuses are located in a fuse block in the instrument
panel on the passenger's side of the vehicle. Pull off the
passenger's side cover to expose the fuses.
Fuse Description
NOT USED Not Used
CRANK
SIGNAL
BCM, CLUSTERCRANK
-- Instrument Panel
Cluster, Body Control Module,
Body Control Module
NOT USED Not Used
Page 319 of 363

6-62
Fuse Description
IGN 0:
CLUSTER
PCM, & BCMInstrument Panel Cluster,
Powertrain Control Module,
Body Control
NOT USED Not Used
LOW BLOWER HVAC Control Assembly,
Blower Motor
HVAC Air Temperature Valve Motor,
HVAC Control Assembly,
Solenoid Box, Compass Mirror
CRUISE Cruise Control Module
NOT USED Not Used
NOT USED Not Used
NOT USED Not Used
BTSI Automatic Transaxle Shift Lock
Control System
NOT USED Not Used
NOT USED Not Used
NOT USED Not Used
TURN
SIGNALS,
CORN LPSTurn Signals, Cornering LampsFuse Description
AIR BAG Air Bag System
CLUSTER Instrument Panel Cluster
NOT USED Not Used
PCM, BCM,
U/H RELAYPowertrain Control Module, Body
Control Module, Underhood
Ignition/Relay
RADIO, HVAC,
RFA CLUSTER,
DATA LINKRadio, HVAC Control Assembly,
Instrument Panel Cluster, Remote
Keyless Entry Module, Data Link
Connector, Bose Amplifier
BCM Body Control Module
CIGAR LTR,
AUX POWERAuxiliary Power, Cigarette
Lighter, Power Drop
INADV
POWER BUSVanity Mirrors, Instrument Panel
Courtesy Lamps, Instrument
Panel Compartment Lamps,
Trunk Courtesy Lamp, Header
Courtesy and Reading Lamps, I/S
Lighted Rearview Mirror
NOT USED Not Used
HIGH BLOWER High Blower Relay
HAZARD Hazard Switch
Page 320 of 363
6-63
Fuse Description
STOP LAMPS Stoplamps Switch
DOOR LOCKS Door Lock Relays (Internal to
Body Control Module) and
External Driver Door Lock Relay
POWER
MIRRORSLeft
-hand and Right-hand
Power Mirrors
RH
HEATED SEATPassenger's Side Heated Seat
LH
HEATED SEATDriver's Side Heated Seat
NOT USED Not Used
ONSTAR OnStar
System
NOT USED Not Used
NOT USED Not Used
RED STRG
WHL ILLUMSteering Wheel Radio
Switch Illumination
FRT PARK LPS Front Parking Lamps,
Sidemarker LampsFuse Description
TAIL LAMPS,
LIC LAMPSTaillamps, License Lamps,
Rear Sidemarker Lamps,
Rear Sidemarker Lamps
PANEL
DIMMINGDimmable Instrument
Panel Lamps
NOT USED Not Used
WIPER Wiper Switch
POWER DROP Power Drop
RADIO, CRUISE Radio, Steering Wheel Radio
Controls, Cruise Control Switches
NOT USED Not Used
Circuit Breaker Description
NOT USED Not Used
PWR
WINDOWS,
PWR SUNROOFPower Windows, Power Sunroof
REAR DEFOG Rear Defog
POWER SEATS Power Seats
NOT USED Not Used
Page 321 of 363
6-64
Underhood Fuse Blocks
A. Auxiliary Fuse Block
B. Main Underhood Fuse Block
Some fuses are in the underhood fuse block. The
auxiliary fuse block (A) is located next to the main
underhood fuse block (B) in the engine compartment on
the passenger's side of the vehicle. See ªEngine
Compartment Overviewº in the Index for more
information on location.To remove the auxiliary fuse block cover, squeeze
gently on the sides of the cover and lift it off.
The auxiliary underhood fuse block (A) contains
the following:
Fuse Description
1 Air Pump
2 ABS
3 ABS
Relay Air Pump Description
4 Air Pump
Page 322 of 363
6-65
To remove the main fuse block cover, follow
these steps:
1. Remove the remote positive (+) terminal cap. See
ªRemote Positive (+) Terminalº in the Index.
2. Turn the knob on the front of the fuse
cover counterclockwise.
3. Pull off the cover.
The main underhood fuse block (B) contains
the following:Maxi Fuses Description
1 Cooling Fans
2 Crank
3 Power Seats, Rear Defog,
Trunk Release
4 HVAC Controls, Hazard Flasher,
CHMSL, Body Control Module,
Stoplamps, Power Mirrors
5 HVAC Controls, Compass
Mirror, Cruise Control,
PRNDL Lamp, Powertrain
Control Module (PCM)
6 Cooling Fans
7 Body Control Module, Cigar
Lighter, Accessory Power
Outlet, Audio Systems,
Keyless Entry System,
I/P Cluster, HVAC Controls
8 Turn Signals, Air Bag System, I/P
Cluster, Body Control Module,
Windshield Wipers
Page 323 of 363
6-66
Mini Relays Description
9 Cooling Fans
10 Cooling Fans
11 Crank
12 Cooling Fans
13 Ignition Main
14 Blank
Micro Relays Description
15 Air Conditioning Compressor
16 Horn
17 Fog Lamps
18 Blank
19 Fuel Pump
Mini Fuses Description
20 Blank
21 Generator
22 Powertrain Control Module
23 Air Conditioning Compressor
24 Blank
25 Fuel Injectors, Electronic Ignition
26 Transmission Solenoid
27 HornMini Fuses Description
28 Fuel Injector, Electronic Ignition
29 Oxygen Sensor
30 PCM Devices/Engine
Emissions Sensors
31 Fog Lamps
32 Headlamp (Passenger's Side)
33 Trunk Release
34 Parking Lamp
35 Fuel Pump
36 Headlamp (Driver's Side)
37 ABS
38 Spare
39 Spare
40 Spare
41 Spare
42 Spare
43 Spare
Diodes Description
Air Conditioning
Compressor Diode
44 Fuse Puller