check engine Hyundai Elantra GT 2017 Workshop Manual

Maintenance
32
7
BRAKE/CLUTCH 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 accumu-
lated mileage. This is a normal condi-
tion associated with the wear of the
brake linings. If the fluid level is
excessively low, have the brake sys-
tem or clutch (if equipped) checked
by an authorized HYUNDAI dealer.
Use only the specified brake fluid.
(Refer to “Recommended lubricantsor capacities” in section 8.)
Never mix different types of fluid.
WARNING - Brake/clutch
fluid
When changing and adding
brake fluid, handle it carefully.
Do not let it come in contact
with your eyes. If brake 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 doctor as soon
as possible.
WARNING - Loss of
brake/
clutch fluid
In the event the brake system
requires frequent additions of
fluid, the vehicle should be
inspected by an authorized
HYUNDAI dealer.
CAUTION
Do not allow brake fluid to con- tact the vehicle's body paint, aspaint damage will result. Brakefluid, which has been exposedto open air for an extended timeshould never be used as itsquality cannot be guaranteed. Itshould be disposed of properly.Don't put in the wrong kind offluid. A few drops of mineral-based oil, such as engine oil, inyour brake system can damagebrake system parts.
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743
Maintenance
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)
Audio (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 at an
authorized HYUNDAI dealer.
WARNING- Recharging
battery
When recharging the battery,
observe the following precau-
tions:
The battery must be removed from the vehicle and placed in
an area with good ventilation.
Do not allow cigarettes, sparks, or flame near the battery.
Watch the battery during charging, and stop or reduce
the charging rate if the battery
cells begin gassing (boiling)
violently 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 charg- er in the following order.
(Continued)(Continued)
1. Turn off the battery chargermain switch.
2. Unhook the negative clamp from the negative battery ter-
minal.
3. Unhook the positive clamp from the positive battery ter-
minal.

759
Maintenance
FUSES
The electrical system is protected by
fuses.
This vehicle has 2 fuse panels, one
located in the driver’s side panel bol-
ster, the other in the engine compart-
ment.
If any of your vehicle’s lights, acces-
sories, or controls do not work, check
the appropriate circuit fuse.
If the electrical system does not work,
first check the driver’s side fuse panel.
Always replace an open fuse with
one of the same rating.
Before replacing an open fuse, dis-
connect the negative battery cable.
If the replacement fuse opens, this
indicates an electrical malfunction.
Avoid using the system involved and
immediately consult an authorized
HYUNDAI dealer.
Three kinds of fuses are used: bladetype for lower amperage rating, car-tridge type, and multi fuse for higheramperage ratings.
WARNING - Fuse
replacement
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
proper fuse - even as a tem-
porary repair. It may cause
extensive wiring damage and
a possible fire.
CAUTION
Do not use a screwdriver or anyother metal object to removefuses because it may cause ashort circuit and damage thesystem.
ODM072020
Normal
■ Cartridge type Open
Normal Open
Normal Open
Normal Open
■
Blade type
■ Multi fuse
■ Battery fuse terminal

Maintenance
60
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 related fuse straight out.
Use the removal tool provided in
the engine compartment fuse
panel.
4. Check the removed fuse; replace it if it is open.
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 circuityou may not need for operating thevehicle, such as the cigarette lighterfuse.
CAUTION
When replacing an open fuse or relay with a new one, makesure the new fuse or relay fitstightly into the clips. Theincomplete fastening fuse orrelay may cause the vehiclewiring and electric systemsdamage and a possible fire.
Do not remove fuses, relays and terminals fastened withbolts or nuts. The fuses, relaysand terminals may be fas-tened incompletely, and it maycause a possible fire. If fuses,relays and terminals fastenedwith bolts or nuts are open,consult with an authorizedHYUNDAI dealer.
Do not input any other objects except fuses or relays intofuse/relay terminals such as adriver or wiring. It may causecontact failure and systemmalfunction.
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761
Maintenance
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 open, it must be replaced.
If the headlights, fog lights, turn sig-
nal lights, position lights or interior
lights do not work and there is noth-
ing wrong with the bulbs, consult with
an authorized HYUNDAI dealer.
Fuse switch
Always put the transportation fuse
switch at the ON position.
If you move the switch to the OFF
position, some items such as the
audio and digital clock must be reset
and the transmitter (or smart key)
may not work properly.
✽ ✽NOTICE
If you need to park your vehicle for
prolonged periods more than 1
month, move the transportation fuse
switch to the OFF position to pre-
vent the battery being discharged.
CAUTION
Always place the transporta-
tion fuse switch in the ON posi-tion while driving the vehicle.
Do not move the transportation fuse switch repeatedly. Thefuse switch may be worn out.
OGDE071018

Maintenance
62
7
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 open. 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.
OGD071019
CAUTION
After checking the fuse panel inthe engine compartment, secure-ly install the fuse panel cover. Ifnot, electrical malfunctions mayoccur from water contact.

Maintenance
80
7
Stop/tail light and rear side marker
(LED type, if equipped)
If the LED light does not operate,
have the vehicle checked by an
authorized HYUNDAI dealer.
✽ ✽
NOTICE
A skilled technician should check or
repair the stop/tail and rear side
marker. Otherwise, it may damage
related parts of the vehicle.
Inside light
1. Turn off the engine.
2. Disconnect the negative battery
cable.
3. Open the tailgate.
4. Remove the service cover using a flat-blade screwdriver. Tail light
(Bulb type)
5. Remove the socket from the assembly by turning the socket
counterclockwise until the tabs on
the socket align with the slots on
the assembly.
6. Remove the bulb from the socket by pressing it in and rotating it
counterclockwise until the tabs on
the bulb align with the slots in the
socket. Pull the bulb out of the
socket.
7. Insert a new bulb by inserting it into the socket and rotating it until
it locks into place.
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781
Maintenance
8. Install the socket in the assemblyby aligning the tabs on the socket
with the slots in the assembly.
Push the socket into the assembly
and turn the socket clockwise.
9. Install the service cover by putting it into the service hole. Back-up light (Bulb type)
5. Remove the socket from the
assembly by turning the socket
counterclockwise until the tabs on
the socket align with the slots on
the assembly.
6. Pull the bulb out of the socket.
7. Insert a new bulb into the socket.
8. Install the socket into the assem- bly by aligning the tabs on the
socket with the slots on the
assembly and turning the socket
clockwise.
9. Reinstall the light assembly to the body of the vehicle
Stop/tail light (LED type, if equipped)
If the LED light does not operate,
have the vehicle checked by an
authorized HYUNDAI dealer.
✽ ✽ NOTICE
A skilled technician should check or
repair the stop/tail light. Otherwise,
it may damage related parts of the
vehicle.
High mounted stop light
replacement
1. Turn off the engine.
2. Disconnect the negative battery
cable.
3. Open the tailgate.
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793
Maintenance
Purge Control Solenoid Valve(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms-up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust emission control system
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
Vehicle modifications
This vehicle should not be modi-
fied. Modification of your vehicle
could affect its performance, safety
or durability and may even violate
governmental safety and emis-
sions regulations.
In addition, damage or perform-
ance problems resulting from any
modification may not be covered
under warranty.
If you use unauthorized electronic devices, it may cause the vehicle to
operate abnormally, wire damage,
battery discharge and fire. For your
safety, do not use unauthorized
electronic devices.
Engine exhaust gas precautions
(carbon monoxide)
Carbon monoxide can be present with other exhaust fumes.
Therefore, if you smell exhaust
fumes of any kind inside your vehi-
cle, have it inspected and repaired
immediately. If you ever suspect
exhaust fumes are coming into
your vehicle, drive it only with all
the windows fully open. Have your
vehicle checked and repaired
immediately.
WARNING - Exhaust
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.

87
Specifications, Consumer information, Reporting safety defects
Recommended SAE viscosity
numberEngine oil viscosity (thickness) has
an effect on fuel economy and cold
weather operating (engine start and
engine oil flowability). Lower viscosi-
ty engine oils can provide better fuel
economy and cold weather perform-
ance, however, higher viscosity
engine oils are required for satisfac-
tory lubrication in hot weather. Using
oils of any viscosity other than those
recommended could result in engine
damage.When choosing an oil, consider the
range of temperature your vehicle
will be operated in before the next oil
change. Proceed to select the rec-
ommended oil viscosity from the
chart.
CAUTION
Always be sure to clean the area
around any filler plug, drainplug, or dipstick before check-ing or draining any lubricant.This is especially important industy or sandy areas and whenthe vehicle is used on unpavedroads. Cleaning the plug anddipstick areas will prevent dirtand grit from entering theengine and other mechanismsthat could be damaged.
*1. For better fuel economy, it is recommended to use the engine oil of a viscosity grade SAE 5W-20 (API
SM / ILSAC GF-4). However, if the engine oil is not
available in your country, select the proper engine oil
using the engine oil viscosity chart.
Temperature Range for SAE Viscosity Numbers
Temperature -30 -20 -10 0 10 20 30 40 50
-10 0 20 40 60 80 100 120
Engine Oil *110W-30
5W-20, 5W-30
°C
(°F)