check engine Hyundai Genesis Coupe 2015 Workshop Manual

723
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
reach normal operating tempera-
ture.
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 com-
ponents.
Use only the specified engine oil.
(Refer to “Recommended lubricants
and capacities” 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.
CAUTION
Do not overfill with engine oil.
Engine damage may result.
Do not spill engine oil, when
adding or changing engine oil.
If you drop the engine oil on
the engine room, wipe it off
immediately.
OBK079035OBK079036

725
Maintenance
The high-pressure cooling system
has a reservoir filled with year-round
antifreeze coolant. The reservoir is
filled at the factory.
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 cli-
mate.Checking the coolant level
ENGINE COOLANT
(Continued)
Even if the engine is not oper-
ating, do not remove the radi-
ator 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.
WARNING
Removing radiator
cap
Never attempt to remove the
radiator cap while the engine
is operating or hot. Doing so
might lead to cooling system
and engine damage and could
result in serious personal
injury from escaping hot
coolant or steam.
Turn the engine off and wait
until it 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 counterclock-
wise to remove it.
(Continued)

Maintenance
26 7
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen
or deteriorated 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
distilled (deionized) water. Bring the
level to F, but do not overfill. If fre-
quent additions are required, see an
authorized HYUNDAI dealer for a
cooling system inspection.
Recommended engine coolant
When adding coolant, use only
deionized water or soft water for
your vehicle and never mix hard
water in the coolant filled at the fac-
tory. An improper coolant mixture
can result in serious malfunction or
engine damage.
The engine in your vehicle has alu-
minum engine parts and must be
protected by an ethylene-glycol-
based coolant to prevent corrosion
and freezing.
DO NOT USE alcohol or methanol
coolant or mix them with the spec-
ified 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.WARNING
The electric motor
(cooling fan) is con-
trolled by engine
coolant temperature,
refrigerant pressure
and vehicle speed. It may some-
times operate even when the
engine is not running. Use
extreme caution when working
near the blades of the cooling
fan so that you are not injured
by a rotating fan blades. As the
engine coolant temperature
decreases, the electric motor
will automatically shut off. This
is a normal condition.
OBK072037

Maintenance
28 7
BRAKE AND CLUTCH (IF EQUIPPED) FLUID
Checking the brake/clutch
fluid level
Check the fluid level in the reservoir
periodically. 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 contamination.If the level is low, add fluid to the
MAX level. The level will fall with
accumulated mileage. This is a nor-
mal condition associated with the
wear of the brake linings. If the fluid
level is excessively low, have the
brake system checked by an author-
ized HYUNDAI dealer.
Use only the specified brake/clutch
fluid. (Refer to “Recommended lubri-
cants or capacities” in section 8.)
Never mix different types of fluid.
WARNING - Brake fluid
When changing and adding
brake/clutch fluid, handle it
carefully. Do not let it come in
contact with your eyes. If
brake/clutch fluid should come
in contact with your eyes, imme-
diately flush them with a large
quantity of fresh tap water. Have
your eyes examined by a doctor
as soon as possible.
WARNING - Loss of
brake fluid
In the event the brake system
requires frequent additions of
fluid, the vehicle should be
inspected by an authorized
HYUNDAI dealer.
OBK079007
CAUTION
Do not allow brake/clutch fluid
to contact the vehicle's body
paint, as paint damage will
result. Brake/clutch fluid, which
has been exposed to open air
for an extended time should
never be used as its quality can-
not 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 damage
brake / clutch system parts.

729
Maintenance
POWER STEERING FLUID
Checking the power steering
fluid level
With the vehicle on level ground,
check the fluid level in the power
steering reservoir periodically. The
fluid should be between MAX and
MIN marks on the side of the gauge
at the normal temperature.
Before adding power steering fluid,
thoroughly clean the area around the
reservoir cap to prevent power steer-
ing fluid contamination.
If the level is low, add fluid to the
MAX level.
✽ ✽
NOTICE
Check that the fluid level is in the
"HOT" range on the gauge. If the
fluid is cold, check that it is in the
"COLD" range.
In the event the power steering sys-
tem requires frequent addition of
fluid, the vehicle should be inspected
by an authorized HYUNDAI dealer.
Use only the specified power steering
fluid. (Refer to "Recommended lubri-
cants or capacities" in section 8.)
Checking the power steering
hose
Check the connections for oil leaks,
damage and twists in the power
steering hose before driving.
CAUTION
To avoid damage to the power
steering pump, do not operate
the vehicle for prolonged peri-
ods with a low power steering
fluid level.
Never start the engine when
the reservoir tank is empty.
When adding fluid, be careful
that dirt does not get into the
tank.
Too little fluid can result in
increased steering effort
and/or noise from the power
steering system.
(Continued)
(Continued)
The use of the non-specified
fluid could reduce the effective-
ness of the power steering sys-
tem and cause damage to it.
OBK072006

Maintenance
40 7
Reset items
Items should be reset after the bat-
tery has been discharged or the bat-
tery has been disconnected.
Sunroof (See section 4)
Trip computer (See section 4)
Climate control system
(See section 4)
Clock (See section 4)
Audio (See section 4)
Auto up/down window
(See section 4)WARNING
Before performing mainte-
nance or recharging the bat-
tery, turn off all accessories
and stop the engine.
The negative battery cable
must be removed first and
installed last when the battery
is disconnected.
Operation related to the bat-
tery should be done in an
authorized HYUNDAI dealer.
CAUTION
Keep the battery away from
water or any liquid.
Use genuine HYUNDAI batter-
ies, available at HYUNDAI
dealers, when you replace the
battery.
(Continued)
Watch the battery during charg-
ing, and stop or reduce the
charging rate if the battery cells
begin gassing (boiling) violent-
ly or if the temperature of the
electrolyte of any cell exceeds
120°F (49°C).
Wear eye protection when
checking 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 ter-
minal.
3. Unhook the positive clamp
from the positive battery ter-
minal.

755
Maintenance
FUSES
A vehicle’s electrical system is pro-
tected from electrical overload dam-
age by fuses.This vehicle has 3 fuse panels, one
located in the driver’s side panel bol-
ster, the others in the engine com-
partment.
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 be melted.
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
indicates an electrical problem. Avoid
using the system involved and imme-
diately consult an authorized
HYUNDAI dealer.
Three kinds of fuses are used: blade
type for lower amperage rating, car-
tridge type, and fusible link for higher
amperage ratings.
OBK079042 Normal Normal Blade type
Cartridge type
Fusible linkBlown
Blown
Normal Blown
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 or alu-
minum foil instead of the prop-
er 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 circuit and damage the
system.

Maintenance
56 7
Instrument panel fuse replace-
ment
1. Turn the ignition switch and all
other switches off.
2. Open the fuse panel cover.
3. Pull the suspected fuse straight
out. Use the removal tool provided
in the main fuse box in the engine
compartment.
4. Check the removed fuse; replace it
if it is blown.
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 may not need for operating the
vehicle, such as the cigarette lighter
fuse.
If the headlights or other electrical
components 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.
OBK079019
CAUTION
When replacing a blown fuse
or relay with a new one, make
sure the new fuse or relay fits
tightly into the clips. The
incomplete fastening fuse or
relay may cause the vehicle
wiring and electric systems
damage and a possible fire.
Do not remove fuses, relays
and terminals fastened with
bolts or nuts. The fuses, relays
and terminals may be fas-
tened incompletely, and it may
cause a possible fire. If fuses,
relays and terminals fastened
with bolts or nuts are blown,
consult with an authorized
HYUNDAI dealer.
Do not input any other objects
except fuses or relays into
fuse/relay terminals such as a
driver or wiring. It may cause
contact failure and system
malfunction.

757
Maintenance
Fuse switch
Always, put the fuse switch at the ON
position.
If you move the switch to the OFF
position, some items such as audio
and digital clock must be reset and
transmitter (or smart key) may not
work properly.
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 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 compartment 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.
CAUTION
Always place the fuse switch in
the ON position while driving
the vehicle.
OBK072042
OBK072021
OBK079048
CAUTION
After checking the fuse panel in
the engine compartment,
securely install the fuse panel
cover. If not, electrical failures
may occur from water contact.

Maintenance
64 7
Engine compartment main fuse panel
Description Fuse rating Protected component
MULTI
FUSEC/FAN 60A Cooling Fan (High) Relay, Cooling Fan (Low) Relay
B+1 60ASmart Junction Box ((Fuse : S/HEATER, AMP, SAFETY POWER WINDOW LH/RH),
IPS 2, IPS Control Module)
BLOWER 40A Smart Junction Box (Blower Relay)
ABS2 40A Multipurpose Check Connector, ESC Module
ABS1 40A Multipurpose Check Connector, ESC Module
ALT 150AAlternator, Multi Fuse (ABS1, ABS2, BLOWER, B+1, C/FAN),
Fuse (S/ROOF FRT, DEICER, VACUUM PUMP)
RR HTD 40A RR HTD Relay
B+260ASmart Junction Box ((Fuse : HAZARD, PDM1, MODULE5, STOP LP, TRUNK, PDM2), IPS 1,
ARISU 2, IPS Control Module)
B+360ASmart Junction Box ((Fuse : AUDIO, DRV P/SEAT, ROOM LP, MEMORY1, MEMORY2), ARISU 1,
IPS Control Module, Leak Current Autocut Device Switch, Leak Current Autocut Device Relay)
FUSEIG2 30A Start Relay, IG2 Relay, Ignition Switch
IG140AIG1 Relay, ACC Relay, Ignition Switch
S/ROOF FRT 20A Sunroof Control Module
DEICER 15A Deicer Relay
VACUUM PUMP 15A Vacuum Pump Relay (G4KF A/T)
DR LOCK 10A Smart Junction Box (Door Lock Relay, Door Unlock Relay), ICM Relay Box (Two Turn Unlock Relay)
BRAKE SW 10A Stop Lamp Switch
HORN 15A Horn Relay
DEDICATED DRL 10A Dedicated DRL Relay
B/UP LP 10AM/T - Back-Up Lamp Switch
A/T - Rear Combination Lamp LH/RH, Electro Chromic Mirror, A/V & Navigation Head Unit