ECU Hyundai H350 2015 Owner's Guide

7-20
Maintenance
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure that a new
vapor hose or fuel filler cap is cor-rectly replaced.
Vacuum crankcase ventilation hoses (if equipped)
Inspect the surface of hoses for evi- dence of heat and/or mechanical
damage. Hard and brittle rubber,
cracking, tears, cuts, abrasions, and
excessive swelling indicate deterio-
ration. Particular attention should be
paid to examine those hose surfaces
nearest to high heat sources, such
as the exhaust manifold. Inspect the hose routing to assure that the hoses do not come in con-
tact with any heat source, sharp
edges or moving component whichmight cause heat damage or
mechanical wear. Inspect all hose
connections, such as clamps and
couplings, to make sure they are
secure, and that no leaks are pres-
ent. Hoses should be replaced
immediately if there is any evidence
of deterioration or damage.
Air cleaner filter
We recommend that the air cleaner
filter be replaced by an authorized
HYUNDAI dealer.
Cooling system
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.

7-30
Maintenance
Checking the parking brake
Check the stroke of the parking
brake by counting the number of
“clicks’’ heard while fully applying it
from the released position. Also, the
parking brake alone should securely
hold the vehicle on a fairly steep
grade. If the stroke is more or less
than specified, we recommend that
the system be serviced by an author-
ized HYUNDAI dealer.
Stroke : 7 “clicks’’ at a force of
20 kg (44 lbs, 196 N).
Draining water from fuel filter
The fuel filter for diesel engine plays
an important role of separating water
from fuel and accumulating the waterin its bottom.
If water accumulates inthe fuel filter, the warninglight comes on when the
ignition switch is in the ONposition.
If this warning light turned
on, we recommend that
the system be serviced by
an authorized HYUNDAI
dealer.
Fuel filter cartridge replace- ment
When replacing the fuel filter car-
tridge, we recommend that you
use parts for replacement from an
authorized HYUNDAI dealer.
NOTICE
PP AA RRKK IINN GG BB RRAA KKEE FFUU EELL FF IILL TT EERR (( FF OO RR DD IIEE SSEE LL))
OEU054002
If the water accumulated in the
fuel filter is not drained at prop-
er times, damages to the major
parts such as the fuel system
can be caused by water perme-
ation in the fuel filter.
CAUTION
OEU074016

7-37
7
Maintenance
4.Push down the wiper arm (3) andinstall the new blade assembly in
the reverse order of removal.
5.Return the wiper arm on the wind
For best battery service
Main battery
The main battery is located in the
battery case in the driver's footwell. - To remove the battery, removethe floor mat and loosen 4 bolts
of the service cover.
OEU074024
BB AA TTTTEERR YY

Objects cannot enter the dri-
ver's footwell. Fit the floor mat
securely as specified in order
to ensure sufficient clearance
for the pedals. Do not useloose floor mats.
Be careful not to damage the
battery sensor when you han-
dle the main battery.
WARNING
OEU074064
Battery sensor

7-38
Maintenance
Auxiliary battery (VAN/Truck)
The auxiliary battery is located in
engine room. (if equipped)
Keep the battery securely mount-ed.
Keep the battery top clean and dry.
Keep the terminals and connec- tions clean, tight, and coated with
petroleum jelly or terminal grease.
Rinse any spilled electrolyte from the battery immediately with a
solution of water and baking soda. Basically equipped battery is
maintenance free type. If your
vehicle is equipped with the bat-
tery marked with LOWER and
UPPER on the side, you can check
the electrolyte level. The elec-
trolyte level should be between
LOWER and UPPER. If the elec-
trolyte level is low, it needs to add
distilled (demineralized) water
(Never add sulfuric acid or other
electrolyte). When refill, be careful
not to splash the battery and adja-
cent components. And do not
overfill the battery cells. It can
cause corrosion on other parts.After then ensure that tighten the
cell caps. We recommend that you
contact an authorized HYUNDAI
dealer.
NOTICE
Do not open the AGM battery.
WARNING
OEU074025
When replacing the battery,
we recommend that you use
parts replacement from an
authorized HYUNDAI dealer.
There is a vent hose for
degasing. You must check the
connection for venting when
you change the battery.
CAUTION
OEU075075
Battery sensor
Vent hose

7-53
7
Maintenance
If the headlights 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.Engine compartment panel fusereplacement
1.Turn the ignition switch and all other switches off.
2.Remove the fuse box cover by pressing the tap 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 rat- ing, and make sure it fits tightly in
the clips.
If it fits loosely, we recommend that
you consult an authorized
HYUNDAI dealer.
OEU074029 After checking the fuse box in
the engine compartment,
securely install the fuse box
cover. If not, electrical failures
may occur from water leakingin.
CAUTION

7-57
7
Maintenance
No.Fuse ratingFuse NameCircuit Protected
1210AMEMORYCluster (B+), A/C Control Module(B+), Drive Door Module(B+ECU), Assist Door Module(B+ECU), DTG(B+), OBDII (B+)
137.5ABRAKE SWBrake Switch, Stop Lamp
1410AMODULE E-3Cluster, Drive Door Module, Assist Door Module, A/C Control Module, Seat HTD Switch
Left/Right, VDC off Switch, AVN, Seat HTD Module Left/Right, DTG, LDWS Module, RPAS
Sensor, Yaw Rate Sensor, Fuel Water Sensor
1510AMIDDLE
DR LOCKMiddle Door Lock Actuator
1610ATAILGATE DR LOCKTailgate Door Lock Actuator
1710AMODULE E-4AUDIO E300/E800(ACC), AVN(ACC), LDC Module(ACC), CM(ACC)
1820AENG BOX (IG1)UH BOX (ABS3 7.5A, SNSR5 7.5A, INHIBITOR 7.5A, BACK UP LAMP 7.5A)
1910ADCUSEAT BOX (DCU SNSR Relay 'S')
207.5A2
CMCM (IG1)
217.5AMODULE-1Rain Sensor
2210AINTERIOR LAMPSEAT BOX(PASS ROOM LAMP Relay 'S'), Key Warning Switch, Step Lamp(MID/ASS),
OH_CONSOLE Lamp, Map Lamp, Passenger Reading Lamp, Cargo_Lamp(Middle / TGAT)

7-62
Maintenance
Engine compartment main fuse panel
No.Fuse ratingFuse Name Circuit Protected
110A2
A/CONA/C Compressor PASS
215A4
ECUEngine Control Module (Permanent Battery (+))
310A1
A/CONA/C Compressor CAB
410A1
SENSORElectric VGT Actuator, EGR Cooling Bypass, UH_BOX(Fuel Pump Relay 'S')
510ASPARE
620A1
ECUEngine Control Module (Battery (+))
710A2
SENSORUH_BOX(A/CON1 Relay 'S', A/CON2 Relay 'S', CONDENSER FAN Relay LH,RH1/2 'S')
820A2
ECUEngine Control Module (Battery (+))
910A3
SENSORLAMBDA Sensor
107.5ABACK UP LAMPRear Combi Lamp Left/Right (Back Up), Inside Mirror (Reverse), Trailer Module (Back Up),
Vehicle Dynamic Control Module (Reverse Gear Switch), Reverse Warning Buzzer
117.5A3
ABSAnti-Lock Brake Module (IG1), Vehicle Dynamic Control Module (IG1), Steering Angle Sensor (IG1)
127.5A5
SENSORAir Flow Sensor, Engine Control Module (TERMINAL15(IG1 INPUT))

7-78
Maintenance
High mounted stop light bulb replacement (if equipped)
If the light does not operate, we rec-
ommend that the system be checked
by an authorized HYUNDAI dealer.
License plate light bulb replacement (if equipped)
1.Remove the lens by pressing thetabs.
2.Remove the socket from the lens.
3.Remove the bulb by pulling it straight out.
4.Install a new bulb in the socket and install the socket to the lens.
5.Reinstall the lens securely.
Interior light bulb replacement
1.Using a flat-blade screwdriver, gently pry the lens from the interior light housing.
2.Remove the bulb by pulling it straight out.
OEU074052OEU074054
OEU074031
OEU074032
■Map lamp
■Room lamp