engine control Hyundai Accent 2018 Service Manual

7-24
Maintenance
Information
If the vehicle is operated in extremely
dusty or sandy areas, replace the ele-
ment more often than the usual rec-
ommended intervals (refer to
"Maintenance Under Severe Usage
Conditions" in this chapter).
Do not drive with the air cleanerfilter removed. This will result in
excessive engine wear.
When removing the air cleaner filter, be careful that dust or dirt
does not enter the air intake, or
damage may result.
Use HYUNDAI genuine parts. Use of non-genuine parts could
damage the air flow sensor.
Filter Inspection
The climate control air filter should
be replaced according to the
Maintenance Schedule. If the vehicle
is operated in severely air-polluted
cities or on dusty rough roads for a
long period, it should be inspected
more frequently and replaced earlier.
When you replace the climate control
air filter, replace it performing the fol-
lowing procedure, and be careful to
avoid damaging other components.
1. With the glove box open, lower theglove box by pushing both sides.
NOTICE
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OYC076016

7-46
Maintenance
F
FU
U S
SE
E S
S
A vehicle's electrical system is pro-
tected from electrical overload dam-
age by fuses.
This vehicle has 2 (or 3) fuse panels,
one located in the driver's side panel
bolster, the other in the engine com-
partment 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 be melted or broken.
If the electrical system does not
work, first check the driver's side
fuse panel. Before replacing a blown
fuse, turn the engine and all switches
off, and then disconnect the negative
battery cable. Always replace a
blown fuse with one of the same rat-
ing.
If the replacement fuse blows, this
indicates an electrical problem. Avoid
using the system involved and imme-
diately consult an authorized
HYUNDAI dealer. Do not use a screwdriver or any
other metal object to remove
fuses because it may cause a
short circuit and damage the sys-
tem.
NOTICE
NEVER replace a fuse with any-
thing but another fuse of the
same rating.
A higher capacity fuse could
cause damage and possibly
cause a fire.
Do not 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
possibly a fire.
WARNING ■
Blade type
Normal
■ Cartridge type Blown
Normal
Blown
■ Multi fuse
Normal Blown
NormalBlown
OLF074075

7-80
Maintenance
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surge
tank through the purge control sole-
noid 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
while maintaining good vehicle per-
formance.
When the engine starts or fails to
start, excessive attempts to restart
the engine may cause damage to the
emission system.
Engine exhaust (carbon monox-
ide) precautions
Carbon monoxide can be present
with other exhaust fumes. If you
smell exhaust fumes of any kind in
your vehicle, drive with all the win-
dows fully open. Have your vehicle
checked and repaired immediately.
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.
WARNING

7-81
7
Maintenance
Do not operate the engine in con-fined or closed areas (such as
garages) any more than what is
necessary to move the vehicle in or
out of the area.
When the vehicle is stopped in an open area for more than a short
time with the engine running,
adjust the ventilation system (as
needed) to draw outside air into the
vehicle.
Never sit in a parked or stopped vehicle for any extended time with
the engine running.
When the engine stalls or fails to start, excessive attempts to restart
the engine may cause damage to
the emission control system.Operating precautions for cat-alytic converters (if equipped)
The exhaust system and cat-
alytic converter are very hot
during and immediately after
the engine has been running. To
avoid SERIOUS INJURY or
DEATH:
Do not park, idle, or drive the
vehicle over or near flamma-
ble objects, such as grass,
vegetation, paper, leaves, etc.
A hot exhaust system can
ignite flammable items under
your vehicle.
Keep away from the exhaust
system and catalytic convert-
er or you may get burned.
Also, Do not remove the heat
sink around the exhaust sys-
tem, do not seal the bottom of
the vehicle, and do not coat
the vehicle for corrosion con-
trol. It may present a fire risk
under certain conditions.
WARNING CALIFORNIA PROPOSITION 65
WARNING
Engine exhaust and a wide vari-
ety of automobile components
and parts, including compo-
nents found in the interior fur-
nishings in a vehicle, contain or
emit chemicals known to the
State of California to cause can-
cer and birth defects and repro-
ductive harm. In addition, cer-
tain fluids contained in vehicles
and certain products of compo-
nent wear contain or emit chem-
icals known to the State of
California to cause cancer and
birth defects or other reproduc-
tive harm.
WARNING

7-82
Maintenance
Your vehicle is equipped with a cat-
alytic converter emission control
device.
To prevent damage to the catalytic
converter and to your vehicle, take
the following precautions:
Use only UNLEADED FUEL for gasoline engines.
Do not operate the vehicle when there are signs of engine malfunc-
tion, such as misfire or a noticeable
loss of performance.
Do not misuse or abuse the engine. Examples of misuse are
coasting with the engine off and
descending steep grades in gear
with the engine off.
Do not operate the engine at high idle speed for extended periods (5
minutes or more). Do not modify or tamper with any
part of the engine or emission con-
trol system. All inspections and
adjustments must be made by an
authorized HYUNDAI dealer.
Avoid driving with extremely low fuel level. If you run out of gasoline,
it could cause the engine to misfire
and result in excessive loading of
the catalytic converter.

I-3
Brake/clutch fluid ...........................................................7-21Checking the Brake/Clutch Fluid Level.....................7-21
Braking system ...............................................................5-24 Anti-lock Brake System (ABS)..................................5-27
Disc Brakes Wear Indicator........................................5-25
Electronic Stability Control (ESC).............................5-28
Good Braking Practices..............................................5-33
Hill-Start Assist Control (HAC) .................................5-32
Parking Brake .............................................................5-25
Power Brakes..............................................................5-24
Vehicle Stability Management (VSM) .......................5-31
Bulb Wattage .....................................................................8-3\
California perchlorate notice ..........................................7-83
Child restraint system (CRS) ..........................................2-28 Children Always in the Rear ......................................2-28
Installing a Child Restraint System (CRS) ................2-31
Selecting a Child Restraint System (CRS).................2-29
Climate control air filter .................................................7-24 Filter Inspection..........................................................7-24
Consumer Information ....................................................8-11
Cruise control..................................................................5-46 Cruise Control operation ............................................5-46 Dimensions .......................................................................8\
-2
Door Locks .....................................................................3-1\
2
Auto Door Lock/Unlock Features ..............................3-16
Child-Protector Rear Door Locks ..............................3-16
Operating door locks from inside the vehicle ............3-13
Operating Door Locks from Outside the Vehicle ......3-12
Drive mode integrated control system ............................5-34
Driver Assist System.......................................................3-94 Rear View Monitor .....................................................3-94
Emission control system .................................................7-79 Crankcase Emission Control System .........................7-79
Evaporative Emission Control System Including Onboard Refueling Vapor Recovery (ORVR) ........7-79
Exhaust Emission Control System .............................7-80
Engine ........................................................................\
.......8-2
Engine Compartment.................................................1-6, 7-3
Engine coolant ................................................................7-18 Changing Engine Coolant ..........................................7-20
Checking the Engine Coolant Level ..........................7-18
Engine Number ...............................................................8-10
Engine oil ........................................................................\
7-16 Checking the Engine Oil and Filter ...........................7-17
Checking the Engine Oil Level ..................................7-16
I
Index
C
D
E

I-4
Explanation of scheduled maintenance items.................7-13
Exterior Features .............................................................3-41Fuel Filler Door ..........................................................3-48
Hood ........................................................................\
...3-41
Smart Trunk ................................................................3-44
Trunk ........................................................................\
..3-42
Exterior Overview.............................................................1-2
Forward Collision-avoidance Assist (FCA) system-Radar Type ......................................................5-35
FCA Sensor ................................................................5-39
FCA Warning Message and System Control..............5-37
Limitations of the System ..........................................5-42
System Malfunction ...................................................5-40
System Setting and Activation ...................................5-35
Fuses ........................................................................\
.......7-46 Fuse/Relay Panel Description ....................................7-50
Instrument Panel Fuse Replacement ..........................7-47
Hazard Warning Flasher ...................................................6-2 If the Engine Overheats ....................................................6-6
If the Engine Will Not Start ..............................................6-3
If the Engine Doesn't Turn Over or Turns Over Slowly ....................................................6-3
If the Engine Turns Over Normally but Doesn't Start ..............................................................6-3
If You Have a Flat Tire ...................................................6-14 Changing Tires ...........................................................6-15
Jack and Tools ............................................................6-14
Ignition switch ..................................................................5-5 Engine Start/Stop Button ..............................................5-8
Key Ignition Switch .....................................................5-5
Important safety precautions.............................................2-2 Air Bag Hazards ...........................................................2-2
Always Wear Your Seat Belt ........................................2-2
Control Your Speed ......................................................2-2
Driver Distraction.........................................................2-2
Keep Your Vehicle in Safe Condition ..........................2-2
Restrain All Children....................................................2-2
In Case of an Emergency While Driving .........................6-2 If the Engine Stalls at a Crossroad or Crossing ...........6-2
If the Engine Stalls While Driving...............................6-2
If you Have a Flat Tire While Driving.........................6-3
Index
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