check engine HYUNDAI TUCSON 2010 Service Manual

721
Maintenance
ENGINE OIL
Checking the engine oil level
1. Be sure the vehicle is on level ground.
2. Start the engine and allow it to reachnormal operating temperature. 3. Turn the engine off and wait for a few
minutes (about 5 minutes) for the oil to
return to the oil pan.
4. Pull the dipstick out, wipe it clean, and re-insert it fully.
5. Pull the dipstick out again and check the level. The level should be between
F and L. If it is near or at L, add enough oil to bring
the level to F.
Do not overfill.
Use a funnel to help prevent oil from
being spilled on engine components.
Use only the specified engine oil. (Refer to “Recommended lubricants and capaci-ties” in section 8.)
WARNING - Radiator hose
Be very careful not to touch the
radiator hose when checking or
adding the engine oil as it may be
hot enough to burn you.

OLM079003N
OLM079004N
CAUTION
Do not overfill with engine oil. Engine damage may result.

Maintenance
22
7
Changing the engine oil and filter
Have engine oil and filter changed by an
authorized HYUNDAI dealer according to
the Maintenance Schedule at the begin-
ning of this section. The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the fac-
tory.
Check the antifreeze protection and
coolant level at least once a year, at the
beginning of the winter season, and
before traveling to a colder climate.
Checking the coolant level
ENGINE COOLANT
WARNING- Removing
radiator cap
Never attempt to remove the radi-
ator cap while the engine is oper-
ating or hot. Doing so might lead
to cooling system and engine
damage. Also, hot coolant or
steam could cause serious per-
sonal injury.
(Continued)
CALIFORNIA PROPOSI-
TION 65 WARNING
Engine oil contains chemicals
known to the State of California to
cause cancer, birth defects, and
reproductive harm.
Used engine oil may cause irrita-
tion or cancer of the skin if left in
contact with the skin for prolonged
periods of time. Used engine oil
contains chemicals that have
caused cancer in laboratory ani-
mals. Always protect your skin by
washing your hands thoroughly
with soap and warm water as soon
as possible after handling used oil.

723
Maintenance
Check the condition and connections of
all cooling system hoses and heater
hoses. Replace any swollen or deterio-
rated hoses.
The coolant level should be filled
between F and L marks on the side of the
coolant reservoir when the engine is
cool.
If the coolant level is low, add enough
specified coolant to provide protection
against freezing and corrosion. Bring the
level to F, but do not overfill. If frequent
additions are required, see an authorized
HYUNDAI dealer for a cooling system
inspection.
Recommended engine coolant
When adding coolant, use only deion-ized water or soft water for your vehicle
and never mix hard water in the
coolant filled at the factory. An improp-
er coolant mixture can result in serious
malfunction or engine damage.
The engine in your vehicle has alu- minum engine parts and must be pro-
tected by an ethylene-glycol-based
coolant to prevent corrosion and freez-
ing.
DO NOT USE alcohol or methanol coolant or mix them with the specified
coolant.
Do not use a solution that contains more than 60% antifreeze or less than
35% antifreeze, which would reduce
the effectiveness of the solution.

OLM079006
(Continued)
Turn the engine off and wait untilit cools down. Use extreme care
when removing the radiator cap.
Wrap a thick towel around it, and
turn it counterclockwise slowly to
the first stop. Step back while the
pressure is released from the
cooling system. When you are
sure all the pressure has been
released, press down on the cap,
using a thick towel, and continue
turning counterclockwise to
remove it.
Even if the engine is not operat- ing, do not remove the radiator
cap or the drain plug while the
engine and radiator are hot. Hot
coolant and steam may still blow
out under pressure, causing seri-
ous injury.

725
Maintenance
BRAKE/CLUTCH (IF EQUIPPED) FLUID
Checking the brake/clutch* fluid
level
Check the fluid level in the reservoir peri-
odically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap and
adding brake/clutch* fluid, clean the area
around the reservoir cap thoroughly to
prevent brake/clutch* fluid contamina-
tion.
*
:if equippedIf the level is low, add fluid to the MAX
level. The level will fall with accumulated
mileage. This is a normal condition asso-
ciated with the wear of the brake linings
and/or clutch disc (if equipped). If the
fluid level is excessively low, have the
brake/clutch* system checked by an
authorized HYUNDAI dealer.
Use only the specified brake/clutch* fluid.
(Refer to “Recommended lubricants andcapacities” in section 8.)
Never mix different types of fluid.
WARNING - Brake/clutch*
fluid
When changing and adding
brake/clutch* fluid, handle it care-
fully. Do not let it come in contact
with your eyes. If brake/clutch* fluid
should come in contact with your
eyes, immediately flush them with a
large quantity of fresh tap water.
Have your eyes examined by a doc-
tor as soon as possible.
WARNING - Loss of
brake/clutch* fluid
In the event the brake/clutch* system
requires frequent additions of fluid,
the vehicle should be inspected by
an authorized HYUNDAI dealer.

OLM079008N
CAUTION
Do not allow brake/clutch* fluid to
contact the vehicle's body paint, aspaint damage will result.
Brake/clutch* fluid, which has beenexposed to open air for an extended time should never be used as itsquality cannot be guaranteed. It should be disposed of properly.Don't put in the wrong kind of fluid.A few drops of mineral-based oil,such as engine oil, in your brake/clutch* system can damagebrake/clutch* system parts.

Maintenance
36
7
Reset items
Items should be reset after the battery
has been discharged or the battery has
been disconnected.
Auto up/down window (See section 4)
Sunroof (See section 4)
Trip computer (See section 4)
Climate control system
(See section 4)
Clock (See section 4)
Audio (See section 4)(Continued)
Wear eye protection when check- ing the battery during charging.
Disconnect the battery charger in the following order.
1. Turn off the battery charger main switch.
2. Unhook the negative clamp from the negative battery terminal.
3. Unhook the positive clamp from the positive battery terminal.
WARNING
Before performing maintenanceor recharging the battery, turn off
all accessories and stop the
engine.
The negative battery cable must be removed first and installed
last when the battery is discon-
nected.

Maintenance
50
7
FUSES
A vehicle’s electrical system is protected
from electrical overload damage by
fuses.
This vehicle has 3 fuse panels, one locat-
ed in the driver’s side panel bolster, the
other in the engine compartment.
If any of your vehicle’s lights, acces-
sories, or controls do not work, check the
appropriate circuit fuse. If a fuse has
blown, the element inside the fuse will
melt.
If the electrical system does not work,
first check the driver’s side fuse panel.
Always replace a blown fuse with one of
the same rating.
If the replacement fuse blows, this indi-
cates an electrical problem. Avoid using
the system involved and immediately
consult an authorized HYUNDAI dealer.
Four kinds of fuse are used: blade type,
cartridge type, multi fuse and main fuse.
WARNING - Fuse replace- ment
Never replace a fuse with any-
thing but another fuse of the
same rating.
A higher capacity fuse could cause damage and possibly a
fire.
Never install a wire instead of the proper fuse - even as a temporary
repair. It may cause extensive
wiring damage and a possible fire.
CAUTION
Do not use a screwdriver or any
other metal object to remove fuses because it may cause a short circuitand damage the system.

OLM079051N
Normal
Normal
Blade type
Cartridge type
Multi fuse
Main fuse Blown
Blown
Normal Blown
Normal Blown

751
Maintenance
Instrument panel fuse replace-
ment
1. Turn the ignition switch and all otherswitches off.
2. Open the fuse panel cover. 3. Pull the suspected fuse straight out.
Use the removal tool provided in the
fuse panel.
4. Check the removed fuse; replace it if it is blown.
Spare fuses are provided in the instru-ment panel fuse panel (or in the enginecompartment fuse panel).
5. Push in a new fuse of the same rating, and make sure it fits tightly in the clips.
If it fits loosely, consult an authorized
HYUNDAI dealer.
If you do not have a spare, use a fuse of the same rating from a circuit you maynot need for operating the vehicle, suchas the cigarette lighter fuse.
If the headlights or other electrical com-
ponents do not work and the fuses are
OK, check the fuse panel in the engine
compartment. If a fuse is blown, it must
be replaced.

OLM079020
OLM079021N

Maintenance
52
7
Memory fuse
Your vehicle is equipped with a memory
fuse to prevent battery discharge if your
vehicle is parked without being operated
for prolonged periods. Use the following
procedures before parking the vehicle for
prolonged periods.
1. Turn off the engine.
2. Turn off the headlights and tail lights.
3. Open the driver’s side panel cover and
pull up the memory fuse.
✽ ✽NOTICE
• If the memory fuse is pulled up from
the fuse panel, the warning chime,
audio, clock and interior lamps, etc.,
will not operate. Some items must be
reset after replacement. Refer to
“Battery” in this section.
• Even though the memory fuse is pulled up, the battery can still be dis-
charged by operation of the head-
lights or other electrical devices.
Engine compartment fuse
replacement
1. Turn the ignition switch and all other
switches off.
2. Remove the fuse panel cover by pressing the tab and pulling the cover
up.
3. Check the removed fuse; replace it if it is blown. To remove or insert the fuse,
use the fuse puller in the engine com-
partment fuse panel.
4. Push in a new fuse of the same rating, and make sure it fits tightly in the clips.
If it fits loosely, consult an authorized
HYUNDAI dealer.

OLM079023N
OLM079022

753
Maintenance
Main fuse and Multi fuse
If the main fuse and Multi fuse is blown,
it must be removed as follows:
1. Disconnect the negative battery cable.
2. Remove the nuts shown in the pictureabove.
3. Replace the fuse with a new one of the same rating.
4. Reinstall in the reverse order of removal.
✽ ✽NOTICE
If the main fuse is blown, consult an
authorized HYUNDAI dealer.CAUTION
After checking the fuse panel in the
engine compartment, securelyinstall the fuse panel cover. If not,electrical failures may occur fromwater contact.

OLM079052N

757
Maintenance
Engine compartment main fuse panel
Description Fuse rating Protected component
MULTI FUSE MDPS 80A EPS Control Module
B+1 60A I/P Junction Box(PDM 15A, DR LOCK 15A, HAZARD 15A, IPS 4, IPS 5, IPS 6, IPS 7)
ABS 2 40A Multipurpose Check Connector, ESC Control Module
EMS 40A EMS Box(TCU 1 15A, ECU 30A, A/CON 10A, F/PUMP 15A)
ABS 1 40A Multipurpose Check Connector, ESC Control Module
BLOWER 40A Blower Relay
B+3 60A
I/P Junction Box(P/SEAT(DRV) 20A, SAFETY POWER WINDOW 20A, TPMS 7.5A,
Power Connector(AUDIO 1 10A, ROOM LP 10A))
B+2 60A I/P Junction Box(Power Window Relay, SUNROOF 15A, AMP 25A, IPS 0, IPS 1, IPS 2, IPS 3)
FUSE C/FAN 40A E/R Fuse & Relay Box(C/FAN LO Relay, C/FAN HI Relay)
RR HTD 40A E/R Fuse & Relay Box(RR HTD Relay)
IGN 1 40A PDM Relay Box(IGN1 Relay), Ignition Switch
IGN 2 40A E/R Fuse & Relay Box(Statr Relay), PDM Relay Box(IGN2 Relay), Ignition Switch
HORN 15A E/R Fuse & Relay Box(Horn Relay, B/A Horn Relay)
DEICER 15A E/R Fuse & Relay Box(Deicer Relay, RR HTD Relay)
STOP LP 10A Stop Lamp Switch, ICM Relay Box(DBC Relay)
B+ SENSOR 10A Batter Sensor
TCU 2 7.5A Transaxle Range Switch(A/T), Vehicle Speed Sensor(M/T)
ABS 7.5A Multipurpose Check Connector, ESC Control Module
ECU 2 7.5A E/R Fuse & Relay Box(ATM P/N Relay), Mass Air Flow Sensor, PCM
F/PUMP 15A EMS Box(F/PUMP Relay)