2007 Hyundai Matrix ECU

2 DRIVING YOUR HYUNDAI
26
CAUTION:
If overheating should occur when towing, (temperature gauge reads near the red zone), taking the follow- ing actions may reduce or eliminatethe 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 selection in park or neu- tral and idle the engine at a higherspeed.
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8. When parking your vehicle 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 putthe transaxle in 1st or Reverse (manual) or Park (automatic). In addition, place wheel chocks ateach of the trailer's tires.
9. If the trailer has electric brakes,
start your vehicle and trailer mov-ing, and then apply the trailer brake controller by hand to be sure the brakes are working. This lets youcheck your electrical connection at the same time.
10.During your trip, check occasion- ally to be sure that the load issecure, and that the lights and any trailer brakes are still working.
11.Avoid jerky starts, sudden accel- eration or sudden stops.
12.Avoid sharp turns and rapid lane changes.
13.Avoid holding the brake pedal down
too long or too frequently. This couldcause the brakes to overheat, re- sulting in reduced braking efficiency. 14. When going down a hill, shift into a
lower gear and use the engine brak- ing effect. When ascending a long grade, downshift the transaxle to a lowergear and reduce speed to reduce chances of engine overloading and/ or overheating.
15.If you have to stop while going uphill, do not hold the vehicle inplace by pressing on the accelera-tor. This can cause the automatic transaxle to overheat. Use the park- ing brake or footbrake.
NOTE: When towing check transaxle fluid more frequently.

3 WHAT TO DO IN AN EMERGENCY
2
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IF THE ENGINE WILL NOT START
D010A01A-AAT D010B02A-AAT
If Engine Doesn't Turn Over or Turns Over Slowly
1. If your car has an automatic
transaxle, be sure the gear selector lever is in "N" or "P" and the emer- gency 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". D010C02A-AAT If Engine Turns Over Normally but Does Not Start
D010B01FC
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 addition, push orpull starting may cause the cata- lytic converter to be overloaded and create a fire hazard.
1. Check fuel level.2. With the key in the "OFF" position,check all connectors at ignition coilsand spark plugs(For Gasoline En-gine) or check all connectors at glow plug and glow plug relay(For Diesel Engine). Reconnect any thatmay be disconnected or loose.
3. Check the fuel line in the engine
room.
4. If engine still refuses to start, call a Hyundai dealer or seek other quali-fied assistance. SSA3020C

3
WHAT TO DO IN AN EMERGENCY
5
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check for coolant leaking from the radiator, hoses or under the car. (Ifthe air conditioning had been in use, it is normal for cold water to be draining from it when you stop).
WARNING (Diesel only):
Never work on injection system with engine running or within 30 sec- onds after shutting off engine. Highpressure pump, rail, injectors and high pressure pipes are subject to high pressure even after the enginestopped. The fuel jet produced by fuel leaks may cause serious in- jury, if it touch the body. Peopleusing pacemakers should not move than 30cm closer to the ECU or wiring harness within the engine 5. If the water pump drive belt is bro-
ken or coolant is leaking out, stopthe engine immediately and call the nearest Hyundai dealer for assis- tance. CAUTION:
Serious loss of engine coolant indi- cates there is a leak in the cooling system and this should be checkedas soon as possible by a Hyundai dealer.
room while engine is running, since the high currents in the CommonRail system produce considerable magnetic fields.
6. If you cannot find the cause of the
overheating, wait until the engine temperature has returned to nor- mal. Then, if the engine coolant hasbeen lost, carefully add coolant to the reservoir (page 6-14) to bring the fluid level in the reservoir up tothe halfway mark.
WARNING:
While the engine is running, keephair, hands, and clothing away from moving parts such as the fan and drive belts to prevent injury.
WARNING:
Do not remove the radiator cap whenthe engine is hot. This can allowcoolant to be blown out of the open- ing and cause serious burns. 7. Proceed with caution, keeping alert
for further signs of overheating. If overheating happens again, call a Hyundai dealer for assistance.
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3 WHAT TO DO IN AN EMERGENCY
12
air may leak from the tire. If you lose a valve cap, buy another and install it assoon as possible. After you have changed wheels, al- ways secure the flat tire in its place inthe luggage room and return the jack and tools to their proper storage loca- tions.
Wheel nut tightening torque: Steel wheel & aluminium alloy wheel: 900-1,100 kg.cm (65-80 lb.ft)
D060J01FC-GAT After Changing Wheels If you have a tire gauge, remove the valve cap and check the air pressure. If the pressure is lower than recom-mended, drive slowly to the nearest service station and inflate to the cor- rect pressure. If it is too high, adjust ituntil it is correct. Always reinstall the valve cap after checking or adjusting tire pressure. If the cap is not replaced, HFC502
IF YOUR VEHICLE MUST BE TOWED
D080A01O-GAT If your vehicle has to be towed, it should be done by your Hyundai dealeror a commercial tow truck service. This will help assure that your vehicle is not damaged in towing. Also, profes-sionals are generally aware of local laws governing towing. In any case, rather than risk damage to your car, itis suggested that you show this infor- mation to the tow truck operator. Be sure that a safety chain system is usedand that all local laws are observed. It is recommended that your vehicle be towed with a wheel lift and dollies orflatbed equipment with all the wheels off the ground.
! CAUTION:
o Your vehicle can be damaged if towed incorrectly!
o Be sure the transaxle is in neu-
tral.
o When the engine will not start, be
sure the steering is unlocked by placing the key in the "ACC" po- sition.

5VEHICLE MAINTENANCE REQUIREMENTS
8EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
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F060M01A-AAT o Engine Oil and Filter The engine oil and filter should be changed at the intervals specified in the maintenance schedule. If the car is being driven in severe conditions,more frequent oil and filter changes are required. F060B01A-AAT
o Drive Belts Inspect all drive belts for evidence of cuts, cracks, excessive wear or oil saturation and replace if necessary. Drive belts should be checked periodi-cally for proper tension and adjusted as necessary. F060C01A-AAT
o Fuel Filter
A clogged filter can limit the speed at
which the vehicle may be driven, dam-age the emission system and cause hard starting. If an excessive amountof foreign matter accumulates in the fuel tank, the filter may require re- placement more frequently. After installing a new filter, run the
engine for several minutes, and checkfor leaks at the connections. Fuel fil- ters should be installed by trained technicians. WARNING (Diesel only):
Never work on injection system with engine running or within 30 sec- onds after shutting off engine. Highpressure pump, rail, injectors and high pressure pipes are subject to high pressure even after the enginestopped. The fuel jet produced by fuel leaks may cause serious injury, if it touch the body. People usingpacemakers should not move than 30cm closer to the ECU or wiring harness within the engine roomwhile engine is running, since the high currents in the Common Rail system produce considerable mag-netic fields.
F060D01TB-AAT
o Fuel Lines, Fuel Hoses and Connections
Check the fuel lines, fuel hoses and
connections for leakage and damage.Replace any damaged or leaking partsimmediately.

5
VEHICLE MAINTENANCE REQUIREMENTS
9
F060H01A-AAT o Air Cleaner Filter A Genuine Hyundai air cleaner filter is recommended when the filter is re- placed. 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 radiator, coolant reservoir, hosesand connections for leakage and dam- age. Replace any damaged parts.
F060E01A-AAT
o Timing Belt
Inspect all parts related to the timing belt for damage and deformation. Re- place any damaged 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 the maintenance sched-ule. Make sure that a new vapor hose or fuel filler cap is correctly replaced. F060F01A-AAT
o Vacuum, Crankcase
Ventilation Hoses
Inspect the surface of hoses for evi-
dence of heat and/or mechanical dam-age. Hard and brittle rubber, cracking, tears, cuts, abrasions, and excessiveswelling indicate deterioration. Particu- lar attention should be paid to examin- ing those hose surfaces nearest tohigh heat sources, such as the ex- haust manifold.
Inspect the hose routing to assure that
the hoses do not come in contact withany heat source, sharp edges or mov- ing component which might cause heatdamage or mechanical wear. Inspect all hose connections, such as clamps and couplings, to make sure they aresecure, and that no leaks are present. Hoses should be replaced immedi- ately if there is any evidence of dete-rioration or damage. F060N02E-GAT
o Valve Clearance
Inspect excessive valve noise and/or engine vibration and adjust if neces- sary. A qualified technician shouldperform the operation.

6 DO-IT-YOURSELF MAINTENANCE
14
G050D01FC
G050D03A-AAT
To Change the Coolant
The coolant should be changed at those intervals specified in the ve- hicle maintenance schedule in Sec- tion 5.
! CAUTION:
Engine coolant can damage the finish of your car. If you spill en-gine coolant on the car, wash it off thoroughly with clean water.
1. Park the car on level ground, set the parking brake and remove the radia- tor cap when cool.
2. Be sure your drain receptacle is in
place. Open the drain cock on theradiator. Allow all the engine cool- ant to drain from the cooling sys- tem, then securely close the draincock.
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 appropriatequantity of coolant to the radiator.
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4. Turn the radiator cap counterclock-wise without pressing down on it, until it stops. This relieves any pres- sure remaining in the cooling sys-tem. And remove the radiator cap by pushing down and turning coun- terclockwise.Fill the radiator with clean deminer-alized or distilled water. Continueto add clean demineralized or dis- tilled water in small quantities until the fluid level stays up in the radia-tor neck.
WARNING:
Remove the radiator cap when theradiator is cool.
The level of the coolant should bebetween the "L" and "F" lines on thereservoir when the engine is cold. If the level is below the "L" mark, add engine coolant to bring it up between"L" and "F". If the level is low, inspect for coolant leaks and recheck the fluid level frequently. If the level dropsagain, visit your Hyundai dealer for an inspection and diagnosis of the rea- son.

6
DO-IT-YOURSELF MAINTENANCE
21
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CHECKING THE BRAKES
G120A01A-AAT
! CAUTION:
Because brakes are essential to the safe operation of the car, it issuggested that they be checked and inspected by your Hyundai dealer. The brakes should bechecked and inspected for wear at those intervals specified in the vehicle maintenance schedule inSection 5.
WARNING (Diesel only):
Never work on injection system
with engine running or within 30 seconds after shutting off engine. High pressure pump, rail, injec-tors and high pressure pipes are subject to high pressure even af- ter the engine stopped. The fuel jetproduced by fuel leaks may cause serious injury, if it touch the body. People using pacemakers shouldnot move than 30cm closer to the ECU or wiring harness within the engine room while engine is run-ning, since the high currents in the Common Rail system produce considerable magnetic fields.
WARNING:
The cooling fan is controlled byengine coolant temperature andmay sometimes operate even when the engine is not running. Use extreme caution when workingnear the blades of the cooling fan so that you are not injured by a rotating fan blade. As the enginecoolant temperature decreases, the fan will automatically shut off. This is a normal condition.Fluid level should be within this range
3. If the transaxle fluid level is low, use a funnel to add transaxle fluid through the dipstick tube until the level reaches the "HOT" range. Do not overfill. C090A03FC