ECU Hyundai Elantra 2019 Service Manual

7-24
Maintenance
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 mixing percentage, refer to the
following table:
Information
If in doubt about the mix ratio, a 50%
water and 50% antifreeze mix is the
easiest to mix together as it will be the
same quantity of each. It is suitable to
use for most temperature ranges of
- 31°F and higher.
i
Ambient
Temperature Mixture Percentage
(volume)
Antifreeze Water
5°F (-15°C) 35 65
-13°F (-25°C) 40 60
-31°F (-35°C) 50 50
-49°F (-45°C) 60 40
Make sure the coolant cap is
properly closed after refilling
coolant. Otherwise the engine
could be overheated while driv-
ing.
1. Check if the coolant cap label is straight In front.
WARNING
OTL075062
■Engine room front view
2. Make sure that the tiny pro-
trusions inside the coolant
cap is securely interlocked.
OPDE076071

7-28
Maintenance
W
WA
AS
SH
H E
ER
R
F
F L
LU
U I
ID
D
Checking the Washer Fluid
Level
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary. 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 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, have the parking
brake adjusted by an authorized
HYUNDAI dealer.
Stroke : 6 clicks at a force of 44
lbs (20 kg, 196 N)
To prevent serious injury or
death, take the following safety
precautions when using washer
fluid:

Do not use engine coolant or
antifreeze in the washer fluid
reservoir.
Engine coolant can severely
obscure visibility when
sprayed on the windshield
and may cause loss of vehicle
control resulting in an acci-
dent or damage to paint and
body trim.
Do not allow sparks or flame
to contact the washer fluid or
the washer fluid reservoir.
Washer fluid may contain
alcohol and can be flamma-
ble.
Do not drink washer fluid and
avoid contact with skin.
Washer fluid is harmful to
humans and animals.
Keep washer fluid away from
children and animals.
WARNING
OAD075011
P
PA
A R
RK
K I
IN
N G
G
B
B R
RA
A K
KE
E
OAD055008

7-36
Maintenance
When you do not use the vehicle for a long time in a low tempera-
ture area, disconnect the battery
and keep it indoors.
Always charge the battery fully to prevent battery case damage
in low temperature areas.
For Best Battery Service
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 acid from the bat- tery immediately with a solution of
water and baking soda.
Battery RechargingNOTICE
Always follow these instruc-
tions when recharging your
vehicle's battery to avoid the
risk of SERIOUS INJURY or
DEATH from explosions or acid
burns:
Before performing mainte-
nance or recharging the bat-
tery, turn off all accessories
and place the ignition switch
to the LOCK/OFF position.
Keep all flames, sparks, or
smoking materials away from
the battery.
Always work outdoors or in an
area with plenty of ventilation.
Wear eye protection when
checking the battery during
charging.
The battery must be removed
from the vehicle and placed in
a well ventilated area.
WARNING
OAD078144

7-56
Maintenance
Engine Compartment Panel
Fuse Replacement
1. Turn the engine off.
2. Turn all other switches OFF.3. Remove the fuse panel cover by
pressing the tap and pulling up.
4. 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.
5. 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.
Main fuse
If the main fuse is blown, it must be
removed as follows:
1. Turn off the engine.
2. Disconnect the negative batterycable.
3. Remove the fuse panel cover by pressing the tab and pulling it up.
4. Remove the nuts shown in the pic- ture above.
5. Replace the fuse with a new one of the same rating.
6. Reinstall in the reverse order of removal.
After checking the fuse box in
the engine compartment
securely close the fuse box
cover inside the engine com-
partment, until it clicks.
If the fuse box is not closed
properly, water may leak in side,
possibly causing a malfunction
with the electrical system.
CAUTION
OAD078025
OAD078148
OAD078149
■
Blade type fuse
■Cartridge type fuse

7-60
Maintenance
Fuse Name Fuse rating Protected Component
PDM 2 7.5A Smart Key Control Module, Immobilizer Module
START 7.5A W/O Smart Key : Transmission Range Switch, Ignition Lock Switch
With Smart Key :Transmission Range Switch, PCM
A/C7.5A Ionizer, A/C Control Module, E/R Junction Block (A/Con Relay, Blower Relay), Gasoline PTC Relay
AIR BAG 15A SRS Control Module, Passenger Occupant Detection Sensor
MODULE 3 10A Stop Lamp Switch, BCM, Sport Mode Switch, Driver/Passenger Door Module
IG1 25A PCB Block (Fuse : ABS3, ECU5, TCU2)
PDM 1 15A Smart Key Control Module
HEATED STEERING 15A BCM
MODULE 6 7.5A BCM, Smart Key Control Module
MODULE 5 10A Crash Pad Switch, Electro Chromic Mirror, A/T Shift Lever Indicator, A/V & Navigation Head Unit,
Audio, A/C Control Module, Console Switch LH/RH, Head Lamp Leveling Device LH/RH,
Front Seat Warmer Control Module, Rear Seat Warmer Control Module, Driver IMS Module
FCA10A FCA Module
A/CON 2 10A E/R Junction Block (Blower Relay), Blower Motor, Blower Resistor, A/C Control Module
WIPER 1 25A Wiper Motor, PCB Block (Front Wiper (Low) Relay)
WASHER 15A Multifunction Switch
MODULE 4 10A Lane keeping Assist System, Parking Assist Buzzer, BCM
SPARE 2 10A -
MODULE 2 10A E/R Junction Block (Power Outlet Relay), USB Charging Connector, Smart Key Control Module,
BCM, Audio, A/V & Navigation Head Unit, CD Player, Power Outside Mirror Switch, AMP,
Driver Door Module, Digital Clock, Console Switch

7-62
Maintenance
Fuse NameFuse rating Protected Component
MULTI
FUSE-1 MAIN 180A Fuse : ABS1, ABS2, POWER OUTLET
MDPS 80A MDPS Unit
MULTI
FUSE-2
B+5 60A PCB Block (Fuse : ECU3, ECU4, HORN, A/C COMP, ENGINE CONTROL RELAY)
B+2 60A Smart Junction Block (Fuse : S/HEATER FRT, ARISU)
B+3 60A Smart Junction Block (Fuse : ARISU, IPS)
B+4 50A Smart Junction Block (Fuse : S/HEATER RR, P/WINDOW LH, P/WINDOW RH, TRUNK,
SUNROOF, AMP, P/SEAT DRV)
COOLING FAN 1 60A Not Used
REAR HEATED 50A Rear Heated Relay
BLOWER 40A Blower Relay
IG1 40A Ignition Switch, E/R Junction Block (PDM #2, #3 (ACC/IG1) Relay)
IG2 40A Ignition Switch, E/R Junction Block (PDM #4 (IG2) Relay, START Relay)
FUSE
B/UP LAMP 10A Electro Chromic Mirror, Rear Combination Lamp (IN) LH/RH, Smart Junction Block (IPS
Control Module)
POWER OUTLET 3 20A Cigarette Lighter
POWER OUTLET 2 20A Front Power Outlet
H/LAMP HI 10A BI-FUNC H/LP RLY (coil)
TCU 1 15A Not Used
VACUUM PUMP 1 20A Not Used
A/CON 10A A/Con Relay
COOLING FAN 2 40A Cooling Fan 1/2 Relay
B+1 40A Smart Junction Block (Leak Current Autocut Device, Fuse : BRAKE SWITCH, MODULE 1,
DR LOCK, PDM 1, PDM 2)
DCT1 40A Not Used

7-63
7
Maintenance
Fuse NameFuse rating Protected Component
FUSE
DCT2 40A Not Used
S/FUEL PUPMP 15A Not Used
ABS 1 40A ESC Module, Multipurpose Check Connector
ABS 2 30A ESC Module, Multipurpose Check Connector
POWER OUTLET 1 40A Power Outlet Relay
Fuse Name Fuse rating Protected Component
ECU 5 10A PCM
VACUUM PUMP 15A Not Used
SPARE 20A -
ABS 3 10A ESC Module, Multipurpose Check Connector
TCU 2 15A Transmission Range Switch, E/R Junction Block (Fuse : B/UP LAMP)
ECU 4 15A PCM
ECU 3 15A PCM
FUEL PUMP 20A Fuel Pump Relay
SENAOR 2 10A Canister Close Valve, Purge Control Solenoid Valve, Variable Intake Solenoid Valve, E/R Junction
Block (Cooling Fan 1/2 Relay)
ECU2 10A Not Used
ECU1 20A PCM
INJECTOR 15A Injector #1/#2/#3/#4
SENSOR 1 15A Oxygen Sensor (UP/DOWN)
IGN COIL 20A Ignition Coil #1/#2/#3/#4
SENSOR 3 10A Fuel Pump Relay
HORN 20A Horn Relay

I-4
Capacities (Lubricants) .....................................................3-7
CareExterior care ...............................................................7-75
Interior care ................................................................7-80
Tire care ......................................................................7-\
38
Cartridge type fuse..........................................................7-56
Center console storage ..................................................3-140
Central door lock switch .................................................3-14
Certification label ...........................................................8-10
Chains Tire chains ................................................................5-137
Changing a tire with TPMS ............................................6-13
Checking tire inflation pressure ......................................7-40
Child restraint system (CRS) ..........................................2-33 Booster seats...............................................................2-36
Children always in the rear ........................................2-33
Forward-facing child restraint system........................2-35
Installing a child restraint system (CRS) ...................2-36
Lower anchors and tether for children (LATCH system) .....................................................2-37
Rearward-facing child restraint system......................2-34
Securing a child restraint seat with "Tether Anchor" system ..........................................3-39
Securing a child restraint system with the LATCH anchors system ..........................................2-38
Securing a child restraint with a lap/shoulder belt.....3-40
Selecting a child restraint system (CRS) ...................2-34 Child-protector rear door locks.......................................3-16
Climate control air filter .................................................7-31
Clock ........................................................................\
.....3-147
Clothes hanger ..............................................................3-147
Combined instrument, see instrument cluster ................3-53
Compact spare tire replacement .....................................7-43
Coolant ........................................................................\
....7-23
Cooling fluid, see engine coolant ...................................7-23
Crankcase emission control system ................................7-83
Cruise control system....................................................5-113
Cup holder.....................................................................3-1\
42
Curtain air bags ...............................................................2-48
Dashboard illumination, see instrument panel
illumination..................................................................3-55
Dashboard, see instrument cluster ..................................3-53
Day/night rearview mirror ..............................................3-23
Daytime running light (DRL) .........................................3-99
Defogging (Windshield) ...............................................3-134
Defroster (Rear window) ..............................................3-113
Defrosting (Windshield) ...............................................3-134
Dimensions .......................................................................8\
-2
Dinghy towing ................................................................6-37
Display illumination, see instrument panel illumination..................................................................3-55
Displays, see instrument cluster .....................................3-53
Index
D
C