2004 CHEVROLET EPICA 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 1-54.
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 6-25.{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 Coolant Surge Tank. SeeCooling System on
page 5-24.
B. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-30.
C. Windshield Washer Fluid Reservoir. SeeWindshield
Washer Fluid on page 5-31.
D. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-13.
E. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-13.
F. Brake Fluid Reservoir. See “Brake Fluid” under
Brakes on page 5-32.
G. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-17.
H. Battery. SeeBattery on page 5-35.
I. Engine Compartment Fuse Block. See “Engine
Compartment Fuse Block” underFuses and Circuit
Breakers on page 5-79.Engine Oil
If the oil pressure light
appears on the instrument
cluster, it means you
need to check your engine
oil level right away.
For more information, seeOil Pressure Light on
page 3-42.
You should check your engine oil level regularly; this is
an added reminder.
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, seeServicing
Your Air Bag-Equipped Vehicle on page 1-54.
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.
5-78

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.
Five spare fuses are 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 driver’s
side end of the instrument panel. To access the fuses,
grip the back end of the fuse panel door and open by
pulling the cover out.
To reinstall the door, insert the tabs at the front end
first, then push the door into the end of the instrument
panel to secure it.
5-79

Fuses Usage
BLANK Not Used
BLANK Not Used
BLANK Not Used
ECMEngine Main Relay, Fuel Pump
Relay, Engine Control Module (ECM)
BCK/UP
CRUISEBack-Up Lamp Switch, Cruise
Control
ABSElectronic Brake Control
Module (EBCM), A/D Converter
AUTO A/C
BCMAutomatic Temperature Control,
A/C Compressor Relay, Body
Control Module (BCM)
HVAC
EPSManual Air Conditioning, Electronic
Power Steering (EPS), HVAC EPS
AIRBAGSensing and Diagnostic
Module (SDM)
BLANK Not Used
TCM
BTSITransmission Control Module
(TCM), Brake Transmission
Shift-Interlock/Automatic Transaxle
Shift-Lock (BTSI)
5-80

Fuses Usage
BCM
ABSBody Control Module (BCM),
Antilock Brake System (ABS)
CLSTR
AUTO A/CInstrument Panel Cluster, Automatic
Temperature Control, Daytime
Running Lamps (DRL)
LTR Cigarette Lighter, Glove Box Lamp
RADIO Radio
CLKClock, Dome Lamp, Key
Interlock Unit
WSWA Windshield Washer
WPR Wiper
HTD/MIROutside Rearview Mirror (OSRVM),
Rear Glass Defogger Switch
RADIO
CRUISERadio Battery Positive
Voltage, Cruise
HTD/SEATHeating Mat, Accessory
Power Outlet
AUTO A/C
CLSTRAutomatic Temperature
Control, Cluster
DLC Data Link Connector (DLC)Engine Compartment Fuse Block
The 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 the
top and bottom flaps to release the cover.
To reinstall the cover, push until it is secure.
5-81

Fuses Usage
BLANK Not Used
LOW BEAM RT Right Side Headlamp Low Beam
LOW BEAM LT Left Side Headlamp Low Beam
INT LTS Interior Lamp
A/C Air Conditioning
HI BEAM
PASSINGHeadlamp Passing Light
HI BEAM Headlamp High Beam
FUELFuel Pump, Data Link
Connector (DLC)
ECM Ignition Coil
COOL FAN HI Electric Cooling Fan High Speed
BCM BATT Body Control Module (BCM)
IGN 1 Ignition Key (ACC, ON, START)
FOG LAMPS Fog Lamp Relay
STOP LAMPS Brake SwitchFuses Usage
I/P FUSE BATT Instrument Panel Fuse Box
ILLUM RT Illumination, Right Parking Lamp
ILLUM LT Left Parking Lamp
HVAC BLWR Blower Motor
IGN 2 Ignition Key (ON, START)
FOG DIODE Fog Lamp Relay
HORN Horn
PWR/MIR Power Mirror
DRL Daytime Running Lamps
ENG 2Injector, Variable Induction
System (VIS), Electronic Exhaust
Gas Recirculation (EEGR),
Canister Purge Solenoid
ENG 1Oxygen Sensor, Generator,
Engine Control Module (ECM)
COOL
FAN LOWElectric Cooling Fan Low Speed
5-83

Fuses Usage
ABSElectronic Brake Control
Module (EBCM)
PWR/SEAT Front Power Seat
S/ROOF Sunroof
ECM 1Engine Control Module (ECM),
Transmission Control Module (TCM),
Engine Main Relay
SPARE Spare
SPARE Spare
SPARE Spare
SPARE Spare
SPARE Spare
PWR WNDW Power Window
FUSE PLR Fuse PullerRelays Usage
COOL FAN HI Electric Cooling Fan High Speed
A/C CMPRSR Air Conditioning Compressor
HEAD LAMP Headlamp
COOL FAN
CNTRLElectric Cooling Fan Control
FRT FOG Front Fog Lamp
HORN Horn
ILLUM LAMPS Taillamp
FUEL PUMP Fuel Pump
COOL
FAN LOWElectric Cooling Fan Low Speed
PWR WNDW Power Window
ENG MAINEngine Control Module (ECM),
Ignition Coil
5-84