2015 Hyundai Sonata check engine

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7
Maintenance
Inner panel fuse replacement
1. Turn the engine 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.
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.
Information
If you do not have a spare, use a
fuse of the same rating from a cir-
cuit you may not need for operat-
ing the vehicle, such as the ciga-
rette lighter fuse.
If the headlamps or other electrical
components do not work and the
fuses are OK, check the fuse block in
the engine compartment. If a fuse is
blown, it must be replaced with the
same rating.
i
OLF074022
OLF074021R

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7
Maintenance
Engine compartment panel fuse
replacement
1. Turn the engine off and all other
switches off.
2. Remove the fuse box 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, 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. Turn off the engine.
2. Disconnect the negative battery
cable.
3. Remove the nuts shown in the pic-
ture above.
4. Replace the fuse with a new one
of the same rating.
5. Reinstall in the reverse order of
removal.
OLF074025After checking the fuse box in
the engine compartment, secure-
ly install the fuse box cover. If
not, electrical failures may occur
from water leaking in.
CAUTION
OLF074024

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7
Maintenance
Fuse NameSymbolFuse ratingCircuit Protected
IG230A[W/O Smart Key] RLY. 8 (Start Relay), Ignition Switch, [With Smart Key] RLY. 8 (Start
Relay), PCB Block (IG2 Relay)
BLOWER40ARLY. 3 (Blower Relay)
ABS 140AABS Control Module, ESP Control Module
REAR
HEATED50ARLY. 1 (Rear Heated Relay)
B+ 350ASmart Junction Block (IPS2 (4CH), IPS3 (4CH), Fuse - F28/F29)
COOLING FAN 150A[W/O G4KE / Middle East] RLY.11 (Cooling Fan Relay), RLY.12 (Cooling Fan Relay)
COOLING FAN 260A[With G4KE / Middle East] RLY.11 (Cooling Fan Relay), RLY.12 (Cooling Fan Relay)
MDPS 180AMDPS Unit
ABS 230AABS Control Module, ESP Control Module, Multipurpose Check Connector
IG140A[W/O Smart Key] Ignition Switch, [With Smart Key] PCB Block (IG1/ACC Relay)
POWER
OUTLET 340ARLY. 5 (Power Outlet Relay)
B+ 250ASmart Junction Block (IPS1 (4CH), IPS4 (4CH), IPS5 (4CH), Fuse - F36/F42)
B+ 560APCB Block (Engine Control Relay, Fuse - F4/F5/F6/F13/F14/F22)
Engine compartment main fuse panel

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7
Maintenance
LIGHT BULBS
Use only bulbs of the specified
wattage.
All bulbs are available from your
HYUNDAI dealers Parts Department.
After heavy driving, rain or wash-
ing, headlamp and tail lamp lens-
es could appear frosty. This condi-
tion is caused by the temperature
difference between the lamp
inside and outside. This is similar
to the condensation on your win-
dows inside your vehicle during
the rain and doesn’t indicate a
problem with your vehicle. If the
water leaks into the lamp bulb cir-
cuitry, we recommend that the
system be checked by an autho-
rised HYUNDAI dealer.
NOTICE
Be sure to replace the burned-
out bulb with one of the same
wattage rating. Otherwise, it
may cause damage to the fuse
or electric wiring system.
CAUTION
If you don’t have the necessary
tools, the correct bulbs and the
expertise, consult an autho-
rised HYUNDAI dealer. In many
cases, it is difficult to replace
vehicle light bulbs because
other parts of the vehicle must
be removed before you can get
to the bulb. This is especially
true if you have to remove the
headlamp assembly to get to
the bulb(s).
Removing/installing the head-
lamp assembly can result in
damage to the vehicle.
CAUTION
Working on the lights
Prior to working on the light, firm-
ly apply the parking brake,
ensure that the Engine Start/Stop
button is turned to the OFF posi-
tion and turn off the lights to
avoid sudden movement of the
vehicle and burning your fingers
or receiving an electric shock.
WARNING
The headlight aiming adjust-
ment may be necessary after
the headlight assembly is rein-
stalled. If you are unsure how to
replace or aim the headlight, we
recommend that you consult
with an authorised HYUNDAI
dealer.
CAUTION

7-82
Maintenance
Canister
Fuel vapours generated inside the
fuel tank are absorbed and stored in
the onboard canister. When the
engine is running, the fuel vapours
absorbed in the canister are drawn
into the surge tank through the purge
control solenoid valve.
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
whilst maintaining good vehicle per-
formance.
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could
affect its performance, safety or
durability and may even violate gov-
ernmental safety and emissions reg-
ulations.
In addition, damage or performance
problems resulting from any modifi-
cation may not be covered under
warranty.
• If you use unauthorised electronic
devices, it may cause the vehicle to
operate abnormally, wire damage,
battery discharge and fire. For your
safety, do not use unauthorised
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.

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8
Specifications & Consumer information
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 tempera-
ture your vehicle will be operated in
before the next oil change. Proceed
to select the recommended oil vis-
cosity from the chart. Always be sure to clean the area
around any filler plug, drain
plug, or dipstick before check-
ing or draining any lubricant.
This is especially important in
dusty or sandy areas and when
the vehicle is used on unpaved
roads. Cleaning the plug and
dipstick areas will prevent dirt
and grit from entering the
engine and other mechanisms
that could be damaged.
CAUTION
Temperature Range for SAE Viscosity Numbers
Temperature°C
(°F)-30 -20 -10 0 10 20 30 40 50
-10 0 20 40 60 80 100 120
*1 : For better fuel economy, it is recommended to use the engine oil of a viscosity
grade SAE 5W-30. However, if the engine oil is not available in your country, select
the proper engine oil using the engine oil viscosity chart.
20W-50
10W-30
15W-40
5W-30, 5W-40
Petrol Engine Oil *1