2015 Hyundai Sonata Hybrid ECU

619
What to do in an emergency
If you have a tire gauge, remove the
valve cap and check the air pressure.
If the pressure is lower than recom-
mended, drive slowly to the nearest
service station and inflate to the cor-
rect pressure. If it is too high, adjust
it until it is correct. Always reinstall
the valve cap after checking or
adjusting tire pressure. If the cap is
not replaced, air may leak from the
tire. If you lose a valve cap, buy
another and install it as soon as pos-
sible.
After you have changed wheels,
always secure the flat tire in its place
and return the jack and tools to their
proper storage locations.To prevent the jack, jack handle,
wheel lug nut wrench and spare tire
from rattling while the vehicle is in
motion, store them properly.CAUTION
Your vehicle has metric threads
on the wheel studs and nuts.Make certain during wheelremoval that the same nuts thatwere removed are reinstalled -or, if replaced, that nuts withmetric threads and the samechamfer configuration are used.Installation of a non-metricthread nut on a metric stud orvice-versa will not secure thewheel to the hub properly andwill damage the stud so that itmust be replaced.
Note that most lug nuts do nothave metric threads. Be sure touse extreme care in checkingfor thread style before installingaftermarket lug nuts or wheels.If in doubt, consult an author-ized HYUNDAI dealer.
WARNING- Wheel studs
If the studs are damaged, they
may lose their ability to retain
the wheel. This could lead to the
loss of the wheel and a collision
resulting in serious injuries.
WARNING - Inadequate
spare tire pressure
Check the inflation pressures as
soon as possible after installing
the spare tire. Adjust it to the
specified pressure, if necessary.
Refer to “Tires and wheels” sec-
tion 8.

719
Maintenance
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in the
maintenance schedule. If the car is being
driven in severe conditions, more fre-
quent oil and filter changes are required.
Drive belts
Inspect all drive belts for evidence of
cuts, cracks, excessive wear or oil satu-
ration and replace if necessary. Drive
belts should be checked periodically for
proper tension and adjusted as neces-
sary.
Fuel filter
A clogged filter can limit the speed at
which the vehicle may be driven, damage
the emission system and cause multiple
issues such as hard starting. If an exces-
sive amount of foreign matter accumu-
lates in the fuel tank, the filter may
require replacement more frequently.
After installing a new filter, run the engine
for several minutes, and check for leaks
at the connections. Fuel filters should be
installed by an authorized HYUNDAI
dealer.
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and con-
nections for leakage and damage. Have
an authorized HYUNDAI dealer replace
any damaged or leaking parts immedi-
ately.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap should
be inspected at those intervals specified
in the maintenance schedule. Make sure
that a new vapor hose or fuel filler cap is
correctly replaced.
Vacuum hoses and crankcase
ventilation hoses
Inspect the surface of hoses for evidence
of heat and/or mechanical damage. Hard
and brittle rubber, cracking, tears, cuts,
abrasions, and excessive swelling indi-
cate deterioration. 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 contact with
any heat source, sharp edges or moving
component which might cause heat dam-
age or mechanical wear. Inspect all hose
connections, such as clamps and cou-
plings, to make sure they are secure, and
that no leaks are present. Hoses should
be replaced immediately if there is any
evidence of deterioration or damage.

Maintenance
28
7
WASHER FLUID
Checking the washer fluid level
The reservoir is translucent so that you
can check the level with a quick visual
inspection.
Check the fluid level in the washer fluid
reservoir and add fluid if necessary. Plain
water may be used if washer fluid is not
available. However, use washer solvent
with antifreeze characteristics in cold cli-
mates to prevent freezing.
Checking the parking brake
Check whether the stroke is within spec-
ification when the parking brake pedal is
depressed with 44 lb (20 kg, 196 N) of
force. Also, the parking brake alone should
securely hold the vehicle on a fairly steep
grade. If the stroke is more or less than
specified, have the parking brake adjusted
by an authorized HYUNDAI dealer.
Stroke : 4~5 notch
WARNING -Coolant
Do not use radiator coolant or
antifreeze in the washer fluid
reservoir.
Radiator coolant can severely obscure visibility when sprayed
on the windshield and may cause
loss of vehicle control or damage
to paint and body trim.
Windshield washer fluid agents contain some amounts of alcohol
and can be flammable under cer-
tain circumstances. Do not allow
sparks or flame to contact the
washer fluid or the washer fluid
reservoir. Damage to the vehicle
or occupants could occur.
Windshield washer fluid is poi- sonous to humans and animals.
Do not drink and avoid contacting
windshield washer fluid. Serious
injury or death could occur.
OYFH071010N
PARKING BRAKE
OYF059023

Maintenance
34
7
For best 12V battery service
The 12V battery is in the trunk.
Keep the 12V battery securely mount-
ed.
Keep the 12V battery top clean and dry.
Keep the terminals and connections clean, tight, and coated with petroleum
jelly or terminal grease.
Wipe any spilled electrolyte from the 12V battery immediately with a solu-
tion of water and baking soda.
If the vehicle is not going to be used for an extended time, disconnect the 12V
battery cables.
BATTERY (12V)
OYFH073017N
WARNING- Battery dangers
Always read the following
instructions carefully when
handling a battery.
Keep lighted cigarettes and all other flames or sparks
away from the battery.
Hydrogen, a highly com- bustible gas, is always
present in battery cells and
may explode if ignited.
Keep batteries out of the reach of children because
batteries contain highly
corrosive SULFURIC ACID.
Do not allow battery acid to
contact your skin, eyes,
clothing or paint finish.
(Continued)
(Continued)If any electrolyte gets intoyour eyes, flush your eyes
with clean water for at least
15 minutes and get immedi-
ate medical attention.
If electrolyte gets on your
skin, thoroughly wash the
contacted area. If you feel a
pain or a burning sensa-
tion, get medical attention
immediately.
Wear eye protection whencharging or working near a
battery. Always provide
ventilation when working in
an enclosed space.
An inappropriately disposed battery can be harmful to
the environment and human
health. Dispose the battery
according to your local
law(s) or regulation.
(Continued)
Pb

753
Maintenance
✽
✽NOTICE
• If the memory fuse is pulled up from
the fuse panel, the warning chime,
audio, clock and interior lamps, etc.,
will not operate. Some items must be
reset after replacement. Refer to
“Battery” in this section.
• Even though the memory fuse is pulled up, the battery can still be dis-
charged by operation of the head-
lights or other electrical devices.
Engine compartment fuse
replacement
1. Turn the engine start/stop button 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 blown. To remove or insert the fuse,
use the fuse puller in the engine com-
partment 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.
OYFH071023N
CAUTION
After checking the fuse panel in theengine compartment, securelyinstall the fuse panel cover. If not, electrical failures may occur fromwater contact.

757
Maintenance
DescriptionFuse rating Protected component
WIPER 25A E/R Fuse & Relay Box (Wiper Relay), Front Wiper Motor, Multifunction Switch
5 MODULE 7.5A PDM, Panorama Sunroof
DR LOCK 20AI/P Junction Box (Door Lock Relay, Door Unlock Relay),
E/R Fuse & Relay Box (T/Turn Unlock Relay)
2 POWER OUTLET
15A Front Power Outlet LH
1 MODULE 7.5A Instrument Cluster, A/C Control Module, BCM, Sport Mode Switch IND., Clock, Audio,
Driver/Passenger Seat Warmer Module, Electro Chromic Mirror, TMU, E/CON Switch,
Active Air Flap, RPAS Sensor
IG 1 20A E/R Fuse & Relay Box (Fuse - ESC 3 10A, ECU 4 10A, OIL PUMP 2 10A, TCU 2 15A)
HEV ECU 20A Hybrid Control Unit
A/BAG 15A Telltale Lamp, SRS Control Module, Passenger Weight Classification Sensor
1 START 7.5A PDM Hybrid Control Unit, Transaxle Range Switch
MDPS 10A ESC Off Switch, Tire Pressure Monitoring Module, EPS Control Module
3 PDM 7.5A Smart Key Module, PDM
SPARE 10A -
A/BAG IND. 7.5A Instrument Cluster
POWER
CONNECTOR AUDIO 15A Audio, A/V & Navigation Head Unit
ROOM LP 10A Trunk Room Lamp, Driver Door Lamp, Instrument Cluster, Passenger Door Lamp,
A/C Control Module, Glove Box Lamp, BCM, Clock, RF Receiver, Data Link Connector,
Tire Pressure Monitoring Module,
Auto Light & Photo Sensor, Electro Chromic Mirror, Room Lamp Relay

Maintenance
58
7
Engine compartment main fuse panel
Description Fuse rating Protected component
MULTI FUSE
3 B+ 60AI/P Junction Box (Power Window Relay, Fuse - TRUNK 10, S/HEATER FRT 15A,
SAFETY POWER WINDOW 25A, MODULE 3 7.5A, PDM 25A, Power Connector - AUDIO 15A)
IG 1 40A Smart Key - IG 1 Relay, ACC Relay
EMS 40A EMS Box (Fuse - HORN 15A, EWP 3 10A, ECU 1 30A, F/PUMP 20A)
RR HTD 40A Rear Defogger Relay
BLOWER 40A Blower Relay
4 B+60AI/P Junction Box (Fuse - P/SEAT DRI 30A, AMP 30A, BRAKE SW 7.5A, BMS 10A, IPS 2, IPS 3,
IPS 5, IPS 8)
MDPS 80A EPS Control Module
FUSE
2 B+ 50AI/P Junction Box (Fuse - SUNROOF 20A, DR LOCK, IPS 1, IPS 4, IPS 6, IPS 7, IPS 9,
Power Connector - ROOM LP 10A)
WIPER 10A PCM
RR HTD IND 10A A/C Control Module INVERTER 10A Low DC Converter, Hybrid Inverter
BATTERY C/FAN 15A BMS Blower Module
1 TCU 20A PCU
STOP LP 15A SSEM (Stop Signal Electronic Module)
DEICER 20A Deicer Relay
2 ECU 20A PCU
HEV ECU 20A Hybrid Control Unit
IG 2 40A Smart Key - IG 2 Relay
1 AHB 40A AHB Control Module1 OIL PUMP 20A Electric Oil Pump Unit

759
Maintenance
Description Fuse ratingProtected component
FUSE1 ESC 40A EBS Control Module2 ESC 30A EBS Control Module2 AHB 30A AHB Control Module4 ECU 10A PCM2 TCU 15A Transaxle Range Switch3ESC 10A Stop Lamp Switch, Multipurpose Check Connector, EBS Control Module2 OIL PUMP 10A Hybrid Fuse & Relay Box (OPCU Relay), Electric Oil Pump Unit
B/UP LAMP 10A A/V & Navigation Head Unit, Rear Combination Lamp (IN) LH/RH, BCM, Electro Chr\
omic Mirror
1 ECU 30A Engine Control Relay
IGN COIL 20A Ignition coil #1/#2/#3/#4, Condenser
1 SENSOR 15A Oxygen Sensor (Up/Down), Oil control Valve (1/2), Purge Control Solenoid Valve, Crankshaft
Position Sensor, CCV
2 SENSOR 15A Camshaft Position Sensor (1/2)
INJECTOR 15A Injector #1/#2/#3/#4, F/PUMP Relay F/PUMP 20A F/PUMP Relay EWP 10A EWP Relay
HORN 15A Burglar Alarm Horn Relay, Horn Relay
SPARE 25A -
SPARE 20A -
SPARE 15A -
SPARE 10A -