2004 CHEVROLET OPTRA fuse

Doing Your Own Service Work
If you want to do some of your own service work, you
will want to use the proper service manual. It tells
you much more about how to service your vehicle than
this manual can. To order the proper service manual,
seeService Publications Ordering Information on
page 7-12.
Your vehicle has an air bag system. Before attempting
to do your own service work, seeServicing Your Air
Bag-Equipped Vehicle on page 1-60.
You should keep a record with all parts receipts and list
the mileage and the date of any service work you
perform. SeePart E: Maintenance Record on page 6-26.{CAUTION:
You can be injured and your vehicle could be
damaged if you try to do service work on a
vehicle without knowing enough about it.
Be sure you have sufficient knowledge,
experience, the proper replacement parts
and tools before you attempt any vehicle
maintenance task.
Be sure to use the proper nuts, bolts and
other fasteners. “English” and “metric”
fasteners can be easily confused. If you
use the wrong fasteners, parts can later
break or fall off. You could be hurt.
5-4

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-18.
B. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-14.
C. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-14.
D. Brake Fluid/Hydraulic Clutch Fluid Reservoir.
See “Brake Fluid” underBrakes on page 5-35and
Hydraulic Clutch on page 5-20.
E. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-33.F. Engine Coolant Surge Tank. SeeCooling System on
page 5-27.
G. Engine Compartment Fuse Block. See “Engine
Compartment Fuse Block” underFuses and Circuit
Breakers on page 5-83.
H. Battery. SeeBattery on page 5-38.
I. Windshield Washer Fluid Reservoir. SeeWindshield
Washer Fluid on page 5-34.
5-13

Electrical System
Add-On Electrical Equipment
Notice:Don’t add anything electrical to your
vehicle unless you check with your dealer rst.
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
Servicing Your Air Bag-Equipped Vehicle on page 1-60.
Headlamp Wiring
The headlamp wiring is protected by fuses, one for each
headlamp, in the fuse block. An electrical overload
will cause the lamps to turn off. If this happens, have
your headlamp wiring checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by an internal
circuit breaker and a fuse. If the motor overheats due to
heavy snow, etc., the wiper will stop until the motor
cools. If the overload is caused by some electrical
problem and not snow, etc., be sure to get it fixed.
Power Windows and Other Power
Options
Circuit breakers in the fuse block 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 or
goes away.
5-82

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.
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 spare fuses provided in the engine
compartment fuse block. 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. Just pick a 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.
There are two fuse blocks in your vehicle: the instrument
panel fuse block and the engine compartment fuse block.
There is a fuse puller located on the engine
compartment fuse block. It can be used to easily
remove fuses from the fuse block.
Instrument Panel Fuse Block
The instrument panel fuse block is located on the end of
the instrument panel, on the driver’s side of the
vehicle. To access the fuses, open the fuse panel door
by pulling out.
To reinstall the door, insert the tabs at the back end
first, then push the door into the instrument panel
to secure it.Sedan shown, Hatchback similar
5-83

Fuses Usage
AIR BAG Air Bag
WPR Wiper
RADIO/CLK Radio/Clock
ECM Engine Control Module
BLANK Not Used
AUX LTR Extra Jack
TRN SIG
LAMPSTurn Signal Lamps
ABS, CRUISEAnti-lock Brake System, Cruise
Control System
LTR Cigarette Lighter
CLSTRCluster, Brake Transmission Shift
Interlock/Automatic Transaxle Shift
Lock (BTSI) Solenoid
BLANK Not Used
BCK/UP Back-upFuses Usage
BLANK Not Used
TCM Transmission Control Module
CRUISE
SWITCHCruise Switch (Contact Coil)
ENG FUSE
BOX, DRLEngine Fuse Box, Daytime Running
Lamps
HAZRD LAMPS Hazard Lamps
AUTO A/C A/C Switch, Clock
HVACHeating, Ventilation and Air
Conditioning
RKE Remote Keyless Entry
RADIO Radio
S/ROOF Sunroof
DLC Data Link Connector
BLANK Not Used
5-85

Engine Compartment Fuse BlockThe engine compartment fuse block is located on the
driver’s side of the vehicle, near the battery. SeeEngine
Compartment Overview on page 5-12for more
information on location. To access the fuses, press in
the top flap to release the cover.
To reinstall the cover, push the cover until it is secure.
5-86

Fuses Usage
HEAD LAMPS Headlamps
ECM Engine Control Module
IGN COIL Ignition Coil
I/P FUSE Instrument Panel Fuse
FUEL PUMP Fuel Pump
A/C Air Conditioning
HORN Horn
HI BEAM Headlamp High-Beam
DRIVER’S
PWR WNDWDriver’s Power Window
STOP LAMPS Stoplamps
DR/LCK Door Lock
MIR HTD Heated Mirror
FRT FOG Front Fog
ILLUM LTLicense Plate Lamp, Parking
Lamp Left
INJ Injector
ENG SNSREvaporative Emission (EVAP)
Canister Purge Solenoid, Heated
Oxygen Sensor (HO2S), Cooling Fan
Relay, CMP SensorFuses Usage
LOW BEAM LT Headlamp Low-Beam Left
ILLUM RTIllumination Circuit, Parking Lamp
Right
LOW BEAM RT Headlamp Low-Beam Right
SPARE Spare
SPARE Spare
SPARE Spare
BATT PWR Battery Power
ABS Anti-lock Brake System
HVAC BLWR HVAC Blower
IGN 2 Ignition 2
IGN 1 Ignition 1
FUSE PLR Fuse Puller
COOL FAN
LOWCooling Fan Low
DEFOG Defog
COOL FAN HI Cooling Fan High
PWR WNDW Power Window
5-88

D
Daytime Running Lamps (DRL).........................3-13
Daytime Running Lamps Indicator Light.............3-38
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-21
Dinghy Towing................................................4-32
Disarming the System.....................................2-17
Doing Your Own Service Work........................... 5-4
Dolly Towing..................................................4-32
Dome Lamp...................................................3-15
Door
Ajar Light...................................................3-38
Central Door Unlocking System....................... 2-8
Door Ajar Reminder....................................... 2-9
Locks.......................................................... 2-7
Power Door Locks......................................... 2-9
Rear Door Security Locks............................... 2-9
Driver
Position, Safety Belt.....................................1-15
Seat Height Adjuster...................................... 1-4
Driving
At Night.....................................................4-14
City...........................................................4-19
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-20Driving (cont.)
Hill and Mountain Roads..............................4-23
In Rain and on Wet Roads...........................4-16
Winter........................................................4-25
Driving on Snow or Ice....................................4-26
Driving Through Deep Standing Water...............4-18
Driving Through Flowing Water.........................4-18
E
Electrical System
Add-On Equipment......................................5-82
Fuses and Circuit Breakers...........................5-83
Headlamp Wiring.........................................5-82
Power Windows and Other Power Options......5-82
Windshield Wiper Fuses...............................5-82
Emergency Trunk Release Handle.....................2-12
Emissions Inspection and Maintenance
Programs...................................................3-35
Engine
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-38
Check and Service Engine Soon Light............3-33
Coolant......................................................5-21
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-32
Cooling System Inspection............................6-23
4