2016 Hyundai Elantra check engine

Maintenance
26 7
ENGINE COOLANT
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 travelling to a colder cli-
mate.Checking the coolant level(Continued)
• 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
anticlockwise slowly to the
first stop. Step back whilst 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 anticlock-
wise to remove it.
• Even if the engine is not oper-
ating, do not remove the radi-
ator cap or the drain plug
whilst the engine and radiator
are hot. Hot coolant and
steam may still blow out
under pressure, causing seri-
ous injuries.
WARNING
Removing radiator
cap
• Never attempt to remove the
radiator cap whilst 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.
(Continued)
CAUTION
• Do not drive with no engine
coolant. It may cause water
pump failure and engine
seizure, etc.
• When the engine overheats
from low engine coolant, sud-
denly adding engine coolant
may cause cracks in the
engine. To prevent damage,
add engine coolant slowly in
small quantities.

727
Maintenance
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 (Full) and L (Low)
marked 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 (Full), but do not overfill. If
frequent additions are required, we
recommend that the system be
inspected by an authorised
HYUNDAI dealer.
Recommended engine coolant
• Use only soft (distilled) water in the
coolant mixture.
• The engine in your vehicle has alu-
minium 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.
For mixture percentage, refer to the
following table.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.
OMD070004N
Ambient
TemperatureMixture Percentage
(volume)
Antifreeze Water
-15°C 35 65
-25°C 40 60
-35°C 50 50
-45°C 60 40

729
Maintenance
BRAKE/CLUTCH FLUID (IF EQUIPPED)
Checking the brake/clutch
fluid level
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX (Maximum) and MIN
(Minimum) marks on the side of the
reservoir. Before removing the reser-
voir 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 (Maximum) level. The level will
fall with accumulated kilometres/
mileage. This is a normal condition
associated with the wear of the brake
linings and/or clutch disc (if
equipped).If the fluid level is excessively low, we
recommend that the system be
checked by an authorised 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.
✽NOTICE
Before removing the brake/clutch
filler cap, read the warning on the cap.
WARNING - Loss of
brake fluid
In the event the brake system
requires frequent additions of
fluid, we recommend that the
system be inspected by an
authorised HYUNDAI dealer.
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 doctor as soon as
possible.
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 cannot be
guaranteed. It should be proper-
ly disposed. 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.
OMD071006R
WARNING
Clean filler cap before remov-
ing. Use only DOT3 or DOT4
brake/clutch fluid from a sealed
container.

753
Maintenance
FUSES
A vehicle’s electrical system is pro-
tected from electrical overload dam-
age 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 near the battery.
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 have melted.
If the electrical system does not
work, first check the driver’s side
fuse panel.
Before replacing a blown fuse, dis-
connect the negative battery cable.
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 authorised
HYUNDAI dealer.
Three kinds of fuses are used: blade
type for lower amperage rating, car-
tridge type and multi fuse for higher
amperage ratings.
✽NOTICE
The actual fuse/relay panel label
may differ from equipped items.
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 alumini-
um foil 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 as it may cause a short
circuit and damage the system.
OJC070046D NormalNormal
■Cartridge type
■Multi fuseBlown
Blown
Normal
Blown ■Blade type
NormalBlown

Maintenance
54 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 engine compartment fuse
panel.
4. Check the removed fuse; replace it
if it is blown.
OMD071017R
OMD070018
CAUTION
• When replacing a blown fuse
or relay with a new one, make
sure the new fuse or relay fits
tightly into the clips. An
incomplete fastening fuse or
relay may cause 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 authorised
HYUNDAI dealer.
• Do not input any other objects
except fuses or relays into
fuse/relay terminals such as a
screwdriver or wire. It may
cause contact failure and sys-
tem malfunction.

755
Maintenance
5. Push in a new fuse of the same
rating, and make sure it fits tightly
in the clips.
If it fits loosely, we recommend that
you consult an authorised 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 electrical components do not
work and the fuses are OK, check
the fuse panel in the engine com-
partment. If a fuse is blown, it must
be replaced.
Fuse switch
Always, put the mode switch in the
ON position.
If you move the switch to the OFF
position, some items such as the
audio and digital clock must be reset.
Also, the transmitter (or smart key)
may not work properly.
Engine compartment panel
fuse replacement
1. Turn the ignition switch and all
other switches off.
2. Remove the fuse box cover by
pressing the tab and pulling up the
cover.
CAUTION
Always place the fuse switch in
the ON position whilst driving
the vehicle.
OMD070020
OMD071019R

Maintenance
56 7
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, we rec-
ommend that you consult an
authorised HYUNDAI dealer.Main fuse
If the main fuse is blown, it must be
removed as follows:
1. Disconnect the negative battery
cable.
2. Remove the nuts shown in the pic-
ture above.
3. Replace the fuse with a new one
of the same rating.
4. Reinstall in the reverse order of
removal.
✽NOTICE
If the electrical system is not operat-
ing, the main fuse may be blown,
even though the engine compart-
ment panel fuse and inner fuse are
not blown. The main fuse is connect-
ed to other parts and systems. We
recommend that you contact an
authorised HYUNDAI dealer.
OMD071021R
CAUTION
After checking the fuse panel in
the engine compartment,
securely install the fuse panel
cover. If not, electrical failures
may occur from water leaking in.

763
Maintenance
Engine compartment fuse panel
Fuse NameSymbol Fuse ratingProtected component
MULTI
FUSE
MDPS80AEPS Control Module
B+160ASmart Junction Box(ARISU-LT 1 (4CH), IPS 1, IPS 6, FUSE - F24, F31, F42)
C/FAN40ARLY.11, RLY.12
ABS140AABS Control Module, ESC Control Module, Multipurpose Check Connector
RR HTD40AR LY. 1
BLOWER40ARLY.10
B+260ASmart Junction Box(Turn Signal Lamp Sound Relay, ARISU-LT 2 (4CH), IPS (1CH),
IPS (2CH), FUSE - F19, F33, F44)
FUSE
B/UP LAMP10AElectro Chromic Mirror, Rear Combination Lamp (IN) LH, Rear Combination Lamp
(IN) RH, M/T - Reverse Lamp Switch, BCM, Instrument Cluster
TCU115AM/T - Vehicle Speed Sensor, A/T - Transaxle Range Switch, TCM(G4FC)
IGN COIL215AG4FC - Ignition Coil #1/ #2/ #3/ #4, Condenser
ABS310AABS Control Module, ESC Control Module, Multipurpose Check Connector,
Yaw Rate Sensor (With ESC)
ECU310AStop Lamp Switch, M/T - ECM, A/T - PCM
WIPER10ARain Sensor, M/T - ECM(G4NB), A/T - PCM(G4NB)
B+350ASmart Junction Box(Leak Current Autocut Device, FUSE - F25, F32, F38, F43)
EMS40AEMS Box(Engine Control Relay, FUSE - F32, F33, F34)