ECU Hyundai Elantra 2004 User Guide

1FEATURES OF YOUR HYUNDAI
76STEERING WHEEL TILT LEVERCD AUTO CHANGER
!
B600A01A-AAT
(If Installed)
To Adjust the Steering Wheel:
1. Push the lever downward to unlock.
2. Raise or lower the steering wheel to the
desired position.
3. After adjustment, securely tighten the lever
by pulling it upward.
WARNING:Do not attempt to adjust the steering wheel
while driving as this may result in loss of
control of the vehicle which may cause
serious injury or death.
B800A01E-GAT
(If Installed)
The CD Auto Changer is located in the left side
of the trunk. This system can store up to 8 CDs.
You may select music without changing disks.
First, open the CD Auto Changer door, remove
the CD "magazine" and insert up to 8 CDs.
Then, push the magazine into the CD Auto
Changer. The CD may be operated with the
passenger compartment audio system con-
trols.
HXDFL600 HXD150
HORN
B610A01Y-AAT
Press the pad on the steering wheel to sound the
horn.
B610A01E

2DRIVING YOUR HYUNDAI
3TO START THE ENGINEKEY POSITIONSBEFORE STARTING THE ENGINE
!
C020A01A-AAT
Before you start the engine, you should always:
1. Look around the vehicle to be sure there are
no flat tires, puddles of oil, water or other
indications of possible trouble.
2. After entering the car, check to be sure the
parking brake is engaged.
3. Check that all windows, and lights are clean.
4. Check that the interior and exterior mirrors
are clean and in position.
5. Check your seat, seatback and headrest to
be sure they are in their proper positions.
6. Lock all the doors.
7. Fasten your seat belt and be sure that all
other occupants have fastened theirs.
8. Turn off all lights and accessories that are
not needed.
9. When you turn the ignition switch to "ON",
check that all appropriate warning lights are
operating and that you have sufficient fuel.
10.Check the operation of warning lights and all
bulbs when key is in the "ON" position.
C030A01A-AAT
COMBINATION IGNITION SWITCH
o If your Hyundai is equipped with a manual
transaxle, place the shift lever in neutral and
depress the clutch pedal fully.
o If your Hyundai has an automatic transaxle,
place the shift lever in "P" (park).
o To start the engine, insert the ignition key and
turn it to the "START" position. Release it as
soon as the engine starts. Do not hold the
key in the "START" position for more than 15
seconds.
NOTE:o For safety, the engine will not start if the
clutch pedal is not depressed fully
(Manual Transaxle) or the shift lever is
not in "P" or "N" Position (Automatic
Transaxle).
o The ignition key cannot be turned from
"ACC" position to "LOCK" position un-
less the shift lever is in the "P" (Park)
position or the negative battery terminal
is disconnected from the battery. To
remove the key, always confirm that the
shift lever is securely positioned in "P"
(Park) (For Automatic Transaxle)
o For additional information about start-
ing, see page 2-4.
C040A01A-AAT
WARNING:The engine should not be turned off or the
key removed from the ignition key cylinder
while the vehicle is in motion. The steering
wheel is locked by removing the key.
o "START"
The engine is started in this position. It will crank
until you release the key.
C040A01E-1
LOCKACC
ON
START

2DRIVING YOUR HYUNDAI
17TRAILER OR VEHICLE TOWING
C190A02S-AAT
If you are considering towing with your car, you
should first check with your State's Department
of Motor Vehicles to determine their legal re-
quirements.
Since laws vary from State to State, the require-
ments for towing trailers, cars, other types of
vehicles, or apparatus may differ. Ask your
Hyundai dealer for further details before towing.
CAUTION:Do not do any towing with your car during
its first 1,200 miles (2,000 km) in order to
allow the engine to properly break in. Fail-
ure to heed this caution may result in seri-
ous engine or transaxle damage.
!
C190B01S-AAT
Trailer Hitches
Select the proper hitch and ball combination,
making sure that it's location is compatible with
that of the trailer or vehicle being towed.
Use a quality non-equalizing hitch which distrib-
utes the tongue load uniformly throughout the
chassis.
The hitch should be bolted securely to the car
and installed by a qualified technician. DO NOT
USE A HITCH DESIGNED FOR TEMPORARY
INSTALLATION AND NEVER USE ONE THAT
ATTACHES ONLY TO THE BUMPER.
C190C03S-AATTrailer Brakes
If your trailer is equipped with a braking system,
make sure it conforms to federal and/or local
regulations and that it is properly installed and
operating correctly.
NOTE:If you tow a trailer or vehicle, your car will
require more frequent maintenance due to
the additional load. See "Maintenance Un-
der Severe Usage Conditions" on page 5-6.
C190D01S-AAT
Safety Chains
Should the hitch connection between your car
and the trailer or vehicle you are towing fail, the
trailer or vehicle could wander dangerously
across other lanes of traffic and ultimately leave
the roadway. To eliminate this potentially dan-
gerous situation, safety chains, attached be-
tween your car and the trailer or towed vehicle,
are required in most states.
!CAUTION:o Never connect a trailer brake system
directly to the vehicle brake system.
o When towing a trailer on steep grades (in
excess of 12%) pay close attention to the
engine coolant temperature gauge to
ensure the engine does not overheat. If
the needle of the coolant temperature
gauge moves across the dial towards
"H" (HOT), pull over and stop as soon as
it is safe to do so, and allow the engine
to idle until it cools down. You may
proceed once the engine has cooled
sufficiently.

2DRIVING YOUR HYUNDAI
19
!WARNING:Improperly loading your car and trailer can
seriously affect its steering and braking
performance causing a crash which could
cause serious injury or death.
C190F01S-AAT
Trailer or Vehicle Towing Tips
1. Before towing, check hitch and safety chain
connections as well as proper operation of
the trailer running lights, brake lights, and
turn signals.
2. Always drive your vehicle at a moderate
speed. (Less than 60 mph)
3. Trailer towing requires more fuel than normal
conditions.
4. To maintain engine braking efficiency and
electrical charging performance, do not use
fifth gear (manual transaxle) or overdrive
(automatic transaxle).
5. Always secure items in the trailer to prevent
load shift while driving.
6. Check the condition and air pressure of all
tires on the trailer and your car. Low tire
pressure can seriously affect the handling.
Also check the spare tire.7. The vehicle/trailer combination is more af-
fected by crosswind and buffeting.
When being passed by a large vehicle, keep
a constant speed and steer straight ahead.
If there is too much wind buffeting slow down
to get out of the other vehicle's air turbulence.
8. When parking your car and trailer, especially
on a hill, be sure to follow all the normal
precautions. Turn your front wheel into the
curb, set the parking brake firmly, and put the
transaxle in 1st or Reverse (manual) or Park
(automatic). In addition, place wheel chocks
at each of the trailer's tires.
9. If the trailer has electric brakes, start your
vehicle and trailer moving, and then apply the
trailer brake controller by hand to be sure the
brakes are working. This lets you check
your electrical connection at the same time.
10. During your trip, occasionally check to be
sure that the load is secure, and that the
lights and any trailer brakes are still work-
ing.
11. Avoid jerky starts, sudden acceleration or
sudden stops.
12. Avoid sharp turns and rapid lane changes.
13. Avoid holding the brake pedal down too long
or too frequently. This could cause the
brakes to overheat, resulting in reduced
braking efficiency.
!
14. When going down a hill, shift into a lower
gear and use the engine braking effect.
When ascending a long grade, downshift
the transaxle to a lower gear and reduce
speed to reduce chances of engine over-
loading and/or overheating.
15. If you have to stop while going uphill, do not
hold the vehicle in place by pressing on the
accelerator. This can cause the automatic
transaxle to overheat. Use the parking
brake or footbrake.
NOTE:When towing check transaxle fluid more
frequently.
CAUTION:If overheating should occur when towing,
(the temperature gauge reads near red zone),
taking the following action may reduce or
eliminate the problem.
1. Turn off the air conditioner.
2. Reduce highway speed.
3. Select a lower gear when going uphill.
4. While in stop and go traffic, place the
gear selector in park or neutral and idle
the engine at a higher speed.

3WHAT TO DO IN AN EMERGENCY
2
D010B02E
D010C01E
IF THE ENGINE WILL NOT START
!
D010A01A-AAT D010B02A-AAT
If Engine Doesn't Turn Over or Turns
Over Slowly
D010C01A-AAT
If Engine Turns Over Normally but Does
Not Start
WARNING:
If the engine will not start, do not push or
pull the car to start it. This could result in a
collision or cause other damage. In addi-
tion, push or pull starting may cause the
catalytic converter to be overloaded and
create a fire hazard.
1. If your car has an automatic transaxle, be
sure the gear selector lever is in "N" or "P"
and the emergency brake is set.
2. Check the battery connections to be sure
they are clean and tight.
3. Turn on the interior light. If the light dims or
goes out when you operate the starter, the
battery is discharged.
4. Check the starter connections to be sure
they are securely tightened.
5. Do not push or pull the vehicle to start it. See
instructions for "Jump Starting".1. Check fuel level.
2. With the key in the "OFF" position, check all
connectors at ignition, coils and spark plugs.
Reconnect any that may be disconnected or
loose.
3. Check the fuel line in the engine room.
4. If the engine still refuses to start, call a
Hyundai dealer or seek other qualified assis-
tance.

3WHAT TO DO IN AN EMERGENCY
9
To reinstall the wheel cover, hold it on the studs,
put the wheel nuts on the studs and tighten them
finger tight. The nuts should be installed with
their small diameter ends directed inward. Jiggle
the tire to be sure it is completely seated, then
tighten the nuts as much as possible with your
fingers again.
D060H02A-AAT
7. Re-install Wheel Nuts
D060H02ED060I01E-AAT
8. Lower Vehicle and Tighten Nuts
D060J01E-AAT
After Changing Wheels
Lower the car to the ground by turning the wheel
nut wrench counterclockwise. Then position
the wrench as shown in the drawing and tighten
the wheel nuts. Be sure the socket is seated
completely over the nut. Do not stand on the
wrench handle or use an extension pipe over
the wrench handle.
Go around the wheel tightening every other nut
until they are all tight. Then double-check each
nut for tightness. After changing wheels, have
a technician tighten the wheel nuts to their
proper torque as soon as possible.
Wheel nut tightening torque:Steel wheel & aluminium alloy wheel:
65-80 lb.ft (900-1,100 kg.cm)If you have a tire gauge, remove the valve cap
and check the air pressure. If the pressure is
lower than recommended, drive slowly to the
nearest service station and inflate to the correct
pressure. If it is too high, adjust it until it is correct.
Always reinstall the valve cap after checking or
adjusting tire pressure. If the cap is not re-
placed, air may leak from the tire. If you lose a
valve cap, buy another and install it as soon as
possible.
After you have changed wheels, always secure
the flat tire in its place in the trunk and return the
jack and tools to their proper storage locations.
HXDFL062HXDFL4007

5VEHICLE MAINTENANCE REQUIREMENTS
7EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS
F060F01A-AATo Vacuum, Crankcase
Ventilation Hoses
Inspect the surface of hoses for evidence of
heat and/or mechanical damage. Hard and
brittle rubber, cracking, tears, cuts, abrasions,
and excessive swelling indicate deterioration.
Particular attention should be paid to examine
those hose surfaces nearest to high heat
sources, such as the exhaust manifold.
Inspect the hose routing to assure that the
hoses do not come in contact with any heat
source, sharp edges or moving component
which might cause heat damage or mechanical
wear. Inspect all hose connections, such as
clamps and couplings, to make sure they are
secure, and that no leaks are present. Hoses
should be replaced immediately if there is any
evidence of deterioration or damage.
F060D01A-AAT
o Fuel Lines, Fuel Hoses and
Connections
Check the fuel lines, fuel hoses and connec-
tions for leakage and damage. Have a trained
technician replace any damaged or leaking
parts immediately.
F060M01A-AAT
o Engine Oil and Filter
The engine oil and filter should be changed at the
intervals specified in the maintenance sched-
ule. If the car is being driven in severe condi-
tions, more frequent oil and filter changes are
required.
F060C01A-AAT
o Fuel Filter
A clogged filter can limit the speed at which the
vehicle may be driven, damage the emission
system and cause hard starting. If an exces-
sive amount of foreign matter accumulates in
the fuel tank, the filter may require replacement
more frequently.
After installing a new filter, run the engine for
several minutes, and check for leaks at the
connections. Fuel filters should be installed by
trained technicians.
F060G01A-AAT
o Vapor Hose and Fuel Filler Cap
The vapor hose and fuel filler cap should be
inspected at those intervals specified in the
maintenance schedule. Make sure that a new
vapor hose or fuel filler cap is correctly re-
placed.
F060H01A-AATo Air cleaner filter
A Genuine Hyundai air cleaner filter is recom-
mended when the filter is replaced.
F060J01A-AATo Spark plugs
Make sure to install new spark plugs of the
correct heat range.
F060N02E-AAT
o Valve Clearance
Inspect excessive valve noise and/or engine
vibration and adjust if necessary. A qualified
technician should perform the operation.

6DO-IT-YOURSELF MAINTENANCE
8
G050D02A-AAT
To Change the Engine Coolant
The engine coolant should be changed at those
intervals specified in the vehicle maintenance
schedule in Section 5.
CAUTION:Engine coolant can damage the finish of
your car. If you spill engine coolant on the
car, wash it off thoroughly with clean water.
1. Park the car on level ground, set the park-
ing brake and remove the radiator cap when
cool.
2. Be sure your drain receptacle is in place.
Open the drain cock on the radiator. Allow all
the engine coolant to drain from the cooling
system, then securely close the drain cock.
3. Check Section 9 for the capacity of the
cooling system in your car. Then, following
the manufacturer's directions on the engine
coolant container, add the appropriate quan-
tity of coolant to the radiator.
!
5. Start the engine, top off the radiator with
water and then add engine coolant to the
reservoir until the level is between "LOW"
and "FULL".
6. Replace the radiator and reservoir caps and
check to be sure the drain cocks are fully
closed and not leaking. 4. Turn the radiator cap counterclockwise with-
out pressing down on it, until it stops. This
relieves any pressure remaining in the cool-
ing system. And remove the radiator cap by
pushing down and turning counterclock-
wise.
Now fill the radiator with clean demineralized
or distilled water. Continue to add clean
demineralized or distilled water in small quan-
tities until the fluid level stays up in the
radiator neck.
G050D03E G050D04E

6DO-IT-YOURSELF MAINTENANCE
13
G110A01E-AAT
AUTOMATIC TRANSAXLE
Transaxle fluid in the automatic transaxle should
be checked at those intervals specified in the
vehicle maintenance schedule in Section 5.
NOTE:Basically automatic transaxle fluid is red
color.
As driving distance increases, the fluid
color turns darkish red gradually.
It is normal condition and you should not
judge replacing by changing color.
You must replace the automatic transaxle
fluid in accordance with intervals specified
in the vehicle maintenances schedule in
section 5.
G100B02A-AAT
To Check the Manual Transaxle
Fluid Level
Park the car on level ground with the engine off.
1. Using a wrench of the correct size, loosen
the oil filler plug by turning it counterclock-
wise and remove it with your fingers.
2. Use your finger or suitable tool to feel inside
the hole. The oil level should be at its bottom
edge. If it is not, check for leaks before
adding oil. To refill the transaxle or bring the
oil level up,add oil slowly until it reaches the
proper level. Do not overfill.
3. Replace the plug and washer, screw it in with
your fingers and then tighten securely with
the wrench.
G100B01L
!WARNING:It is always better to check the transaxle oil
level when the engine is cool or cold. If the
engine is hot, you should exercise great
caution to avoid burning yourself on hot
engine or exhaust parts.

6DO-IT-YOURSELF MAINTENANCE
34FUSE PANEL DESCRIPTION
G280B01E-AAT
Engine Compartment
G280B01ENOTE:Not all fuse panel descriptions in this manual may be applicable to your vehicle. It is accurate at the time of printing. When you inspect the
fuse box on your vehicle, refer to the fuse box label.
FUSE
RATING
120A
50A
20A
20A
20A
40A
30A
30A
30A
15A
10A
15A
20A
15A
10A
15A
15A
15APROTECTED COMPONENTS
Generator
Fusible link (P/WDW), Tail lamp relay, Power connector
Condenser fan relay.1
Radiator fan relay
Generator, Engine control relay, Fuel pump relay, PCM
Ignition switch, Start relay
ABS control (Motor)
ABS control (Solenoid)
Blower relay
Injectors
PCM, Heated oxygen sensor, SMATRA, Heater relay, Glow plug relay
DRL control
Head lamp washer
Front fog lamp relay
Siren, PCM
A/C relay, Horn relay
Head lamp (Hight)
Head lamp (Low)
BATT
BATT
COND
RAD
ECU
IGN
ABS.1
ABS.2
BLOWER
INJ.
SNSR
DRL
H/LP WASHER
F/FOG
ECU
HORN & A/C
H/LP (HI)
H/LP (LO) FUSIBLE
LINK
FUSE
DESCRIPTION