2003 Hyundai Coupe ECU

WHAT TO DO IN AN EMERGENCY
3-8 D080A02A-GAT IF YOUR CAR MUST BE TOWED CAUTION: Your car can be damaged if towed incorrect-ly! If your car has to be towed, it should be done by your Hyundai dealer or a commercial tow truckservice. This will help assure that your car is notdamaged in towing. Also, professionals are gen-erally aware of local laws governing towing. Inany case, rather than risk damage to your car, itis suggested that you show this information to thetow truck operator. Be sure that a safety chainsystem is used and that all local laws are ob-served.
D080B01A-AAT Towing a Car with a Manual Transaxle
o If the car is being towed with the rear wheels
on the ground, be sure the parking brake is released.
o If the car is being towed with the front wheels on the ground, be sure that the transaxle is inneutral. Also, be sure that the ignition key is inthe "ACC" position. This is necessary toprevent damage to the steering lock mecha-nism, which is not designed to hold the frontwheels straight while the car is being towed.
o If any of the loaded wheels or suspension components are damaged, a towing dollymust be used.
o OK FOR AUTOMATIC OR MANUAL
TRANSAXLE EQUIPPED VEHICLE o OK FOR AUTOMATIC OR MANUAL
TRANSAXLE EQUIPPED VEHICLEWITH NO DAMAGE
D080A01GKHGK199
D060J01FC-GAT After Changing Wheels If you have a tire gauge, remove the valve cap and check the air pressure. If the pressure islower than recommended, drive slowly to thenearest service station and inflate to the correctpressure. If it is too high, adjust it until it is correct.Always reinstall the valve cap after checking oradjusting tire pressure. If the cap is not replaced,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 securethe flat tire in its place in the luggage compart-ment and return the jack and tools to their properstorage locations.
HGK195

VEHICLE MAINTENANCE REQUIREMENTS 5-5
F060A01A-AAT
EXPLANATION OF SCHEDULED MAIN- TENANCE ITEMS
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 arerequired.
F060B02A-AAT
o Drive Belts Inspect all drive belts for evidence of cuts,
cracks, excessive wear or oil saturation andreplace if necessary. Drive belts should bechecked periodically for proper tension andadjusted as necessary.
F060C01A-AAT
o Fuel Filter
A clogged filter can limit the speed at which the
vehicle may be driven, damage the emissionsystem and cause hard starting. If an exces-sive amount of foreign matter accumulates inthe fuel tank, the filter may require replacementmore frequently.
After installing a new filter, run the engine for
several minutes, and check for leaks at theconnections. Fuel filters should be installed bytrained technicians. F060D01A-AAT
o Fuel Lines, Fuel Hoses and Connec-
tions
Check the fuel lines, fuel hoses and connec-
tions for leakage and damage. Have a trainedtechnician replace any damaged or leaking partsimmediately.
F060E01A-AAT
o Timing Belt Inspect all parts related to the timing belt for
damage and deformation. Replace any dam-aged parts immediately.
F060G01A-AAT
o Vapor Hose and Fuel Filler cap The vapor hose and fuel filler cap should be
inspected at those intervals specified in themaintenance schedule. Make sure that a newvapor hose or fuel filler cap is correctly re-placed.
F060F01A-AAT
o Vacuum, Crankcase
Ventilation Hoses
Inspect the surface of hoses for evidence of
heat and/or mechanical damage. Hard and brit-tle rubber, cracking, tears, cuts, abrasions, andexcessive swelling indicate deterioration. Par-ticular attention should be paid to examiningthose hose surfaces nearest to high heat sourc-es, such as the exhaust manifold. Inspect the hose routing to assure that the
hoses do not come in contact with any heatsource, sharp edges or moving componentwhich might cause heat damage or mechanicalwear. Inspect all hose connections, such asclamps and couplings, to make sure they aresecure, and that no leaks are present. Hosesshould be replaced immediately if there is anyevidence of deterioration or damage.
F060H01A-AAT
o Air Cleaner Filter
A Genuine Hyundai air cleaner filter is recom-
mended when the filter is replaced.
F060J01A-AAT
o Spark Plugs Make sure to install new spark plugs of the
correct heat range.
F070B01A-GAT
o Cooling System
Check the cooling system part, such as radia-
tor, coolant reservoir, hoses and connectionsfor leakage and damage. Replace any dam-aged parts. F060N02E-GAT
o Valve Clearance Inspect excessive valve noise and/or engine
vibration and adjust if necessary. A qualifiedtechnician should perform the operation.

DO-IT-YOURSELF MAINTENANCE
6-8 5. Replace the radiator and reservoir caps and
check to be sure the drain cocks are fully closed and not leaking.
WARNING: The cooling fan is controlled by engine cool- ant temperature and may sometimes oper-ate even when the engine is not running.Use extreme caution when working near theblades of the coolant fan so that you are notinjured by a rotating fan blade. As the en-gine coolant temperature decreases, the fanwill automatically shut off. This is a normalcondition. G060A02Y-GAT
SPARK PLUGS
YN60100A
V6
Your engine was originally equipped with plati- num-tipped spark plugs. (For 2.7L only). Platinum-tipped spark plugs will last longer than conventional type spark plugs and can be iden-tified by blue lines on the ceramic shell. NOTE: Do not clean or regap platinum-tipped spark plugs.
G060B01GK-GAT
Replacing the Spark Plugs The spark plugs should be changed at the
intervals specified in the vehicle maintenanceschedule in Section 5 or whenever engine per-formance indicates they should be changed.Symptoms that suggest poor spark plug perfor-mance include engine misfiring under load, lossof fuel economy, poor acceleration, etc. Whenspark plugs are replaced, always use sparkplugs recommended by Hyundai. The use ofother spark plugs can result in loss of perfor-mance, radio interference or engine damage.
NOTE: When replacing the spark plugs, genuine
Hyundai replacement parts are recom- mended. Recommended Spark Plugs:
Type
RC10YC4(CHAMPION) BKR5ES-11(NGK) RC10PYPB4(CHAMPION) PFR5N-11(NGK) RC10YC(CHAMPION) BKR5ES(NGK) RC10YC(CHAMPION) BKR5ES(NGK) Remark
Unleaded
Leaded
1.6/2.0L 2.7L*
2.7L
1.6/2.0L
1.0~1.1 mm (0.039 ~ 0.043 in.)*0.7~0.8 mm (0.028 ~ 0.032 in.)*: leaded one
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.
NOTE: 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. Allowall the engine coolant to drain from thecooling system, then securely close the draincock.
3. Check Section 9 for the capacity of the cooling system in your car. Then, followingthe manufacturer's directions on the enginecoolant container, add the appropriate quan-tity of engine coolant to the radiator.
4. Turn the radiator cap counterclockwise with- out pressing down on it, until it stops. Thisrelieves any pressure remaining in the cool-ing system. And remove the radiator cap bypushing down and turning counterclockwise. Now fill the radiator with clean demineral- ized or distilled water. Continue to add cleandemineralized or distilled water in small quan-tities until the fluid level stays up in theradiator neck. DOHC1.0~1.1 mm (0.039 ~ 0.043 in.)
*0.7~0.8 mm (0.028 ~ 0.032 in.)
* Platinum coated.

DO-IT-YOURSELF MAINTENANCE 6-11
Transaxle lubricant in the manual transaxle should
be checked at those intervals specified in the vehicle maintenance schedule in Section 5. Recommended Oil
Use only HYUNDAI GENUINE PARTS MTF
75W/90 (API GL-4) in the manual transaxle.Manual Transaxle Oil Capacity
5 speed : 2.15L (2.27 U.S. quarts) 6 speed : 2.2L (2.32 U.S. quarts) 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. G100B02A-AAT
To Check the Manual Transaxle Fluid Level
SSA6100B
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 bottomedge. If it is not, check for leaks beforeadding oil. To refill the transaxle or bring theoil level up,add oil slowly until it reaches theproper level. Do not overfill.
3. Replace the plug and washer, screw it in with your fingers and then tighten securelywith the wrench.
G100A02GK-GAT
CHECKING THE TRANSAXLE OIL (MANUAL)
G110A01E
Filler plug
Drain plug G110A02A-AAT
CHECKING THE TRANSAXLE FLUID (AUTOMATIC)
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 isnormal condition and you should not usefluid color as a criterion for replacing thetransaxle fluid.
You must replace the automatic transaxle
fluid in accordance with intervals specifiedin the vehicle maintenances schedule insection 5. G110B03A-AAT
Recommended Fluid
Your Hyundai automatic transaxle is specially
designed to operate with DIAMOND ATF SP-III or SK ATF SP-III. Damage caused by anonspecified fluid is not covered by your newvehicle limited warranty.

DO-IT-YOURSELF MAINTENANCE 6-23
G200C01GK-GAT
FUSE PANEL DESCRIPTION Engine Compartment
HGK205-EPROTECTED COMPONENTS
Generator Generator Condenser Fan Radiator FanEngine Control, ECM. ATM ControlIgnition, Start RelayABSABS Blower InjectorO 2 Sensor, ECM
DRL
Front Fog Light TCM, ECM
Horn. A/ConditionerHead Light (High)Head Light (LOW)
FUSE RATING
120A50A30A 30A 30A30A30A30A30A 15A 10A15A15A10A15A 15A 15A
DESCRIPTION
BATTBATT
COND RADECU
IGN
ABS 1ABS 2
BLOWER INJ
SNSR DRL
F/FOG ECU
HORN,A/CON H/LP (H1)
H/LP (LO)
NOTE:
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.
If installed

DO-IT-YOURSELF MAINTENANCE
6-24 DESCRIPTION
IG COIL
AMP
B/UP LAMP
A/BAG IND
A/BAG
HTD MIR HAZARD
R/WIPER TAIL-RH
F/WIPER
A/C SW
RR DEFOG STOP
TAIL-LH
A/CON ECU
CLUSTER
ROOM LP
P/WINDOW T/GATE
IGN
RR FOG C/LIGHT
S/ROOF S/HTR ABS
AUDIO
G200D01GK-GAT
Inner Panel
HGK204-E
PROTECTED COMPONENTS
Ignition Coil, ECM
AMP. Multi Gauge Unit B/Up LampAir Bag Indicator Air Bag Outside Mirror DefrosterHazard Warning Light Rear Window Wiper
Tail LightFront Window Wiper A/Conditioner Rear Window DefrosterStop Light
Tail Light A/Conditioner ECM, Multi Gauge Unit, TCMCluster Map Light, Clock, Audio Power WindowTail Gate Open A/Con, A.Q.S Sensor Rear FogC/Lighter, Outside Mirror Sunroof Seat WarmerABS. TCS Audio, Clock
FUSERATING
20A20A 10A10A 15A 10A10A 15A 10A20A 10A 30A15A 10A 10A10A 10A 10A30A 15A 10A10A 15A 15A20A 10A 10A

CONTROLS AND EQUIPMENT
1- 2 B040A02Y-EAT DOOR LOCKS WARNING:
o Unlocked doors can be dangerous. Before
you drive away (especially if there are chil-dren in the car), be sure that all the doorsare securely closed and locked so that thedoors cannot be inadvertently opened fromthe inside. This helps ensure that doorswill not be opened accidentally. Also, whencombined with the proper use of seat belts,locking the doors helps keep occupantsfrom being ejected from the car in case ofan accident.
o Before opening the door, always look for and avoid oncoming traffic.
o In case of accident the door is unlocked automatically (Not all models).
B880B03A-GAT Keys
All of the locks fitted to the vehicle are operated by the same key. However, since it is possible tolock the doors without the use of the key, careshould be exercised to ensure that the key doesnot become locked inside the vehicle by mistake. NOTE: If you make your own duplicate key, you willnot be able to cancel the system or start theengine. AX10020A-1B880C02A-GAT Key Numbers
AX10030A-1
The vehicle key number is recorded upon a metal tag attached to the keys when the vehicleis first delivered to you.The key number should be recorded and kept ina safe place in case the need to order furtherkeys arises. New keys are available from anyHyundai dealer by quoting the relevant key num-ber.In the interest of security, the metal tag attachedto the keys which bears the key number shouldbe removed from the key ring after you receiveyour new vehicle. In addition, key numbers can-not be provided by Hyundai for security reasons.If you need additional keys or if you should loseyour keys, your authorized Hyundai dealer canmake new keys.
B880A01A-GAT IMMOBILIZER SYSTEMThe immobiliser system is an anti-theft device, designed to deter automobile theft.

CONTROLS AND EQUIPMENT1- 7
SB070A1-E FRONT SEAT ADJUSTMENT WARNING: Front seat adjustments must not be under- taken whilst the vehicle is in motion. Loss ofcontrol of the vehicle may result if seat ad-justments are made whilst the vehicle is inmotion. SB070B2-E Front seat rake adjustment The front seat rake adjustment is performed by raising the lever at the front of the seat base andsliding the seat to the desired position. At thisposition the lever should be released and theseat rocked to and fro to ensure that the mecha-nism has locked.
B050A02GK-D
WARNING:
o Be careful that head, hands and body are
not trapped by a closing window.
o If passengers remain in the car when you leave, especially if a child remains alone,always remove the ignition key for theirsafety.
HGK054-D
SB070C1-E Front seat recline adjustment The front seat back recline angle may be ad- justed by leaning forward slightly and raising therecline adjustment lever at the side of the seat.When the seatback is at the desired angle, thelever should be released. Ensure that theseatback is locked before driving the vehicle.
HGK051-D
WARNING: To ensure the seat is locked securely, at-tempt to move the seat forward or rearwardwithout using the lock release lever.