2003 Hyundai Atos check engine

DO-IT-YOURSELF MAINTENANCE
6-12 G140B01A-AAT
Checking the Air Conditioning Opera- tion
1. Start the engine and let it run at a fast idle for
several minutes with the air conditioning set at the maximum cold setting.
2. If the air coming out of the in-dash vents is not cold, have the air conditioning systeminspected by your Hyundai dealer.
CAUTION: Running the air conditioning system for ex- tended periods of time with a low refrigerantlevel may damage the compressor.
When the air conditioning is being used regu-larly, the compressor drive belt tension shouldbe checked at least once a month. To check the drive belt tension, press down on the belt halfway between the engine crankshaftand compressor pulleys. Pressing with yourfinger, you should not be able to deflect this belt
anymore than 5 - 5.5 mm. If you have theinstruments to check it with a force of 98N (22lb.), the deflection should be approx. 5 - 5.5(0.197 - 0.217 inches). If the belt is too loose,have it adjusted by your Hyundai dealer.
G120D01A-AAT
To Check the Fluid Level The fluid level in the brake fluid reservoir should
be checked periodically. The level should bebetween the "MIN" and "MAX" marks on theside of the reservoir. If the level is at or belowthe "MIN" mark, carefully add fluid to bring it upto "MAX". Do not overfill.
G120E02A-AAT
Adding Brake Fluid
WARNING: Handle brake fluid carefully. It can damage
your vision if it gets into your eyes. Use only DOT 3 or DOT 4 specification fluid from asealed container. Do not allow the fluid canor reservoir to remain open any longer thanrequired. This will prevent entry of dirt and moisture which can damage the brake sys-tem and cause improper operation.
To add brake fluid, first wipe away any dirt then
unscrew the fluid reservoir cap. Slowly pour therecommended fluid into the reservoir. Do notoverfill. Carefully replace the cap on the reser-voir and tighten.
G120E01A
G140A01A-AAT
AIR CONDITIONER CARE Keeping the Condenser Clean
The air conditioner condenser (and engine ra-
diator) should be checked periodically for accu- mulation of dirt, dead insects, leaves, etc. Thesecan interfere with maximum cooling efficiency.When removing such accumulations, brush orhose them away carefully to avoid bending thecooling fans.
G140D01X-GAT
Checking the Compressor Drive Belt
A/C pulley
Crank pulley
G140D01X
5 ~ 5.5 mm
system. Follow the instructions printed on the container.

DO-IT-YOURSELF MAINTENANCE 6-13
G170A01A-GAT
CHECKING BRAKE PEDAL FREEPLAY
To check the steering wheel freeplay, stop the car with the wheels pointed straight ahead andgently move the steering wheel back and forth.Use very light finger pressure and be sensitiveto changes in resistance that mark the limits ofthe freeplay. If the freeplay is greater thanspecified, have it inspected by your Hyundaidealer and adjusted or repaired if necessary. G160A01A-GAT
CHECKING CLUTCH PEDAL FREEPLAY
SSA6160A
6 ~ 13 mm (0.24 ~ 0.51 in.)
With the engine off, press lightly on the clutch
pedal until you feel a change in resistance. This is the clutch pedal freeplay. The freeplay shouldbe within the limits specified in the illustration. Ifit is not, have it inspected by your Hyundaidealer and adjusted or repaired if necessary.
SSA6170A
3 ~ 8 mm (0.12 ~ 0.31 in.)
With the engine off, press down on the brake
pedal several times to reduce the vacuum in the brake booster.
Then, using your hand, press down slowly on
the brake pedal until you feel a change inresistance. This is the brake pedal freeplay.
The freeplay should be within the limits speci-
fied in the illustration. If it is not, have it in-spected by your Hyundai dealer and adjustedor repaired if necessary.
G140C01A-AAT
Lubrication
To lubricate the compressor and the seals in
the system, the air conditioning should be run for at least 10 minutes each week. This isparticularly important during cool weather whenthe air conditioning system is not otherwise inuse.
G150A01A-GAT
CHECKING STEERING WHEEL FREEPLAY
AS60260A
30 mm (1.18 in.)

DO-IT-YOURSELF MAINTENANCE
6-14 G200A01A-AAT CHECKING AND REPLACING FUSESReplacing a Fusible Link A fusible link will melt if the electrical circuits from the battery are ever overloaded, thus pre-venting damage to the entire wiring harness.(This could be caused by a short in the systemdrawing too much current.) If this ever happens,have a Hyundai dealer determine the cause,repair the system and replace the fusible link.The fusible links are located in a relay box foreasy inspection. CAUTION: When replacing a fusible link, never use anything but a new fusible link with thesame or lower amperage rating. Never use apiece of wire or a higher-rated fusible link.This could result in serious damage andcreate a fire hazard.
G200A01A
Bad
Good
G180A01A-GAT
CHECKING BRAKE PEDAL
CLEARANCE
SSA6180A
36 mm (1.42 in.)
You need a helper to check the brake pedal clearance. With the engine running, have yourhelper press down on the brake pedal severaltimes and then hold it down with a force of about490N (50kg, 110lbs). The brake pedal clear-ance is the distance from the top surface of thebrake pedal to the asphalt sheeting under thefloor mat. If the brake pedal clearance is not within the limits specified in the illustration, have it in-spected by your Hyundai dealer and adjustedor repaired if necessary.
G190A01A-GAT
CHECKING DRIVE BELTS
Water pump pulley
Crankshaft pulley
Drive belts should be checked periodically for
proper tension and adjusted if necessary. At the same time, belts should be examined for cracks,wear, fraying or other evidence of deteriorationand replaced if necessary. Belt routing should also be checked to be sure
there is no interference between the belts andother parts of the engine. After a belt is re-placed, the new belt should be adjusted againafter two or three weeks to eliminate slackresulting from initial stretching after use.
G190A01A
9.5~11.0 mm (0.37 ~ 0.43 in.)
Generator

DO-IT-YOURSELF MAINTENANCE
6-16
G230A03A-GAT
POWER STEERING FLUID LEVEL
The power steering fluid level should be checked
regularly.
To check the power steering fluid level, be sure
the ignition is "OFF", then check to make cer- tain that the power steering fluid level is be-tween the "MAX" and "MIN" level markings onthe fluid reservoir.
NOTE: Grinding noise from the power steering
pump may be heard immediately after the engine is started in extremely cold condi-
tions (below -20°C). If the noise stops dur-ing warm up, there is no abnormal functionin the system. This is due to a power steer-ing fluid characteristic in extremely coldconditions.
G230A01X
The fluid in the battery contains a strong solu-
tion of sulfuric acid, which is poisonous and highly corrosive. Be careful not to spill it onyourself or the car. If you do spill battery fluid onyourself, immediately do the following:
o If battery fluid is on your skin, flush the affected areas with water for at least 15 minutes and then seek medical assistance.
o If battery fluid is in your eyes, rinse out your eyes with water and get medical assistanceas soon as possible. While you are beingdriven to get medical assistance, continueto rinse your eyes by using a sponge or softcloth saturated with water.
o If you swallow battery fluid, drink a large quantity of water or milk followed by milk ofmagnesia, eat a raw egg or drink vegetableoil. Get medical assistance as soon aspossible.
While batteries are being charged (either by abattery charger or by the vehicle's alternator),they produce explosive gases. Always observethese warnings to prevent injuries from occur-ring:
o Charge batteries only in a well ventilated area.
o Do not permit flames, sparks or smoking in the area.
o Keep children away from the area. G210B01A-AAT
Checking the Battery
Keep the battery clean. Any evidence of corro-
sion around the battery posts or terminals should be removed using a solution of household bak-ing soda and warm water. After the batteryterminals are dry, cover them with a light coat-ing of grease.
G220A01A-AAT
CHECKING ELECTRIC COOLING
FANS
WARNING: The radiator fan is controlled by engine cool- ant temperature and may sometimes operateeven when the engine is not running. Use extreme caution when working near the blades of the cooling fan, so that you are not injuredby a rotating fan blade. As the coolant tem-perature decreases the fan will automaticallyshut off. This is a normal condition.
G220B01A-AAT
Checking Engine Cooling Fan The engine cooling fan should come on auto-
matically if the engine coolant temperature ishigh.
G220C01A-AAT
Checking Condenser Cooling Fan The condenser cooling fan should come on
automatically whenever the air conditioning isin operation.

DO-IT-YOURSELF MAINTENANCE 6-17
G270A02X-GAT
HEADLIGHT BULB
Replacement instructions:
1. Allow the bulb to cool. Wear eye protection.
2. Always grasp the bulb by its base, avoid touching the glass.
3. Disconnect the connector, then remove the dust cover.
4. Push the bulb spring for removing the head- light bulb.
5. Remove the headlight bulb. If the bulb is burned out, replace it with the same watt- age.
6. Installation is the reverse order of the re- moval.
7. Use the protective cap and carton to promptly dispose of the old bulb.
8. Check for proper headlight aim. WARNING: The halogen bulb contains gas under pres-
sure and if impacted could shatter, and re- sulting in flying fragments. Always wear eye
protection when servicing the bulb. Protectthe bulb against abrasions or scratches andagainst liquids when lighted. Turn the bulbon only when installed in a headlight. Re-place the headlight if damaged or cracked.
Keep the bulb out of the reach of childrenand dispose of the used bulb with care. G290A02X-GAT HEADLIGHT AIMING ADJUSTMENT Before performing aiming adjustment, make sure of the following.
1. Keep all tires inflated to the correct pres- sure.
2. Place the vehicle on level ground and press the front bumper & rear bumper down sev- eral times. Place the vehicle at a distance of3,000 mm (118 in.) from the test wall.
3. See that the vehicle is unloaded (except for full levels of coolant, engine oil and fuel, andspare tire, jack, and tools). Have the driveror equivalent weight placed in driver's seat.
Recommended Fluid
Use PSF-3 type fluid. NOTE: Do not start the engine when the power
steering oil reservoir is empty.
G240A01A-AAT
POWER STEERING HOSES
It is suggested that you check the power steer-
ing hose connections for fluid leakage at those intervals specified in the vehicle maintenanceschedule in Section 5.
The power steering hoses should be replaced if
there is severe surface cracking, pulling, scuff-ing or worn spots. Deterioration of the hosecould cause premature failure.
G260A03A-AAT
REPLACING HEADLIGHT BULBS Before attempting to replace a headlight bulb,
be sure the switch is turned to the "OFF"position.
The next paragraph shows how to reach head-
light bulbs so they may be changed. Be sure toreplace the burned-out bulb with one of thesame number and wattage rating.
CAUTION: Keep the lamps out of contact with petro-
leum product, such as oil, gasoline, etc.
G270A01X

CONSUMER INFORMATION 8-1
I010B01A-AAT Engine Number
8. CONSUMER IN-
FORMATION
I010A01A-GAT VEHICLE IDENTIFICATION NUMBER (VIN) The vehicle identification number (VIN) is the number used in registering your car and in alllegal matters pertaining to its ownership, etc.It can be found on the identification plate at-tached to the engine side of the firewall be-tween the engine and passenger compartment. The engine number is stamped on the engineblock as shown in the drawing. I020A01A-AAT TIRE INFORMATION The tires supplied on your new Hyundai are chosen to provide the best performance fornormal driving.I030A01X-GAT RECOMMENDED INFLATION PRES- SURES The tire label located on the driver side center pillar outer panel gives the tire pressures rec-ommended for your vehicle.
I010A01A
I010B01AI030A01S
84.0BX13
4.5JX13 5.0JX13 TIRE
SIZE PRESSURE. kPa (PSI)
155/70R13155/70R13175/60R13 REAR
207(30)207(30)207(30) FRONT
221(32)221(32) 221(32)
UP TO 2
PERSONS UP TO MAX.
LOAD
REAR
221(32) 221(32) 221(32)
FRONT 207(30)207(30)207(30)
RIM
SIZE
These pressures were chosen to provide the most satisfactory combination of ride comfort,tire wear and stability under normal conditions.Tire pressures should be checked at leastmonthly. Proper tire inflation pressures shouldbe maintained for these reasons:

INDEX
10-2
E Emission Control System
................................................................... 7-1
Engine Before starting the engine .............................................................. 2-2
Compartment (For MFI) ................................................................. 6-1
Coolant ........................................................................................... 6-5
Coolant temperature gauge ......................................................... 1-22
If the engine overheats .................................................................. 3-2Number .......................................................................................... 8-1
Oil .................................................................................................. 6-2Oil consumption ............................................................................. 6-3
Starting ........................................................................................... 2-3
Engine Exhaust Can Be Dangerous ................................................... 2-1
FFan Speed Co ntrol ............................................................................ 1-34
Fog Light Front ............................................................................................. 1-31
Rear ............................................................................................. 1-31
Front Seats Adjustable front seats .................................................................... 1-5
Adjustable headrests ..................................................................... 1-6Adjusting seat forward and rearward ............................................. 1-5
Adjusting seatback angle ...................... ......................................... 1-6
Fuel Capacity ......................................................................................... 9-1
Gauge .......................................................................................... 1-22
Recommendations ......................................................................... 1-1 Fuel Filler Lid
Remote release ............................................................................ 1-31
Fuses ................................................................................................ 6-15
G General Everyday Checks .................................................................. 6-2
H Hazard Warn ing System ................................................................... 1-27
Headlight ........................................................................................... 6-17
Headlight Bulb Replacement ............................................................. 6-17
Headlight Leveling Device System ................................................... 1-25
Heating and Ventilation
High-mounted Rear Stoplight ............................................................ 1-28
Hood Release ................................................................................... 1-32
Horn ................................................................................................ 1-33
I Ignition Switch ..................................................................................... 2-2
Immobilizer System ............................................................................. 1-2
Instrument Cluster and Indicator ....................................................... 1-19
Instruments and Controls .................................................................. 1-18
Interior Light ...................................................................................... 1-27
J Jump Starting ...................................................................................... 3-1
K
Keys .................................................................................................. 1-2 If you lose your keys ..................................................................... 3-8
Positions ........................................................................................ 2-2