ECU HYUNDAI ELANTRA 2023 Service Manual

Maintenance9-20
WARNING
OCN7080005
OCN7N080006
„Smartstream G1.6 T-GDi
1. Check if the radiator cap label is straight In front.
2. Make sure that the tiny protrusions inside the radiator cap should be
securely interlocked.
Recommended engine coolant

[When adding coolant, use only
distilled (deionized) water for your
vehicle and never mix hard water in
the coolant filled at the factory.

[ An improper coolant mixture can
result in severe malfunction or engine
damage.

[ The engine in your vehicle has
aluminum engine parts and must be
protected by an ethylene-glycol with
phosphate based coolant to prevent
corrosion and freezing.

[ Do not use alcohol or methanol
coolant or mix them with the specified
coolant.

[ 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:
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
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.

09
9-23
PARKING BRAKE
Checking the Washer Fluid Level
OCN7080007
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
climates to prevent freezing.
WARNING
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
accident or damage to paint and
body trim.

[ Do not allow sparks or flames to
contact the washer fluid or the
washer fluid reservoir. Washer fluid
may contain alcohol and can be
flammable.

[ 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.
WASHER FLUID
Checking the Parking Brake
OCN7080072L
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 system
be serviced by an authorized HYUNDAI
dealer.
Stroke : 5~8 “clicks’’ at a force of 44 lbs
(20 kg, 196 N)

Maintenance9-30
NOTICE
Always follow these instructions when
handling your vehicle’s battery to
prevent damage to your battery:

[ When you do not use the vehicle for a
long time in a low temperature area,
disconnect the battery and keep it
indoors.

[ Always charge the battery fully to
prevent battery case damage in low
temperature areas.

[ Prevent liquid from wetting the
battery terminals. The performance
of the battery may be degraded, and
may cause injury. Be cautious when
loading liquid in the trunk.

[ Do not tilt the battery.

[ If you connect unauthorized
electronic devices to the battery, the
battery may be discharged. Never
use unauthorized devices.
For Best Battery Service
OCN7080016

[Keep the battery securely mounted.

[ Keep the battery top clean and dry.

[ Keep the terminals and connections
clean, tight, and coated with
petroleum jelly or terminal grease.

[ Rinse any spilled acid from the battery
immediately with a solution of water
and baking soda.
Battery Capacity Label
„Example
‡Type A
OCN7080076L
‡Type B
OCN7080077L
❈ The actual battery label in the vehicle may differ from the illustration.
1. AGM70L-DIN: The HYUNDAI model name of battery
2. 12V : The nominal voltage
3. 70Ah (20HR): The nominal capacity (in Ampere hours)
4. RC 120min: The nominal reserve capacity (in min.)
5. CCA: The cold-test current in amperes by SAE
6. 760A: The cold-test current in amperes by EN

09
9-47
Engine Compartment Panel Fuse
Replacement
„Blade type fuse
OCN7080021
„Cartridge type fuse
OCN7080022
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.
CAUTION
After checking the fuse box in the
engine compartment securely close
the fuse box cover inside the engine
compartment, until it clicks.
If the fuse box is not closed properly,
water may leak in side, possibly causing
a malfunction with the electrical
system.
Multi fuse (Main fuse)
OCN7080020
If the multi fuse is blown, it must be
removed as follows:
1. Turn off the engine.
2. Disconnect the negative battery cable.
3. Remove the fuse panel cover by pressing the tab and pulling it up.
4. Remove the nuts shown in the picture above.
5. Replace the fuse with a new one of the same rating.
6. Reinstall in the reverse order of removal.
Information
If the multi fuse is blown, consult an
authorized HYUNDAI dealer.

Maintenance9-50
Driver’s side fuse panel
Fuse Name Fuse Rating Circuit Protected
MODULE2 10
AE/R Junction Block (Power Outlet Relay), AMP, IBU, IAU,
Audio, Power Outside Mirror Switch, DC-DC Converter
(Smartstream G 2.0 Atkinson ISG only), A/V & Navigation
Head Unit
AIR BAG1 15ASRS Control Module, Passenger Occupant Detection
Sensor
MODULE5 10AA/T Shift Lever Indicator, Front Wireless Charger, A/C
Controller, Electro Chromic Mirror, A/C Control Module,
Audio, A/V & Navigation Head Unit, AMP, DC-DC
Converter (Smartstream G 2.0 Atkinson ISG only), Data
Link Connector, Rear Seat Warmer Control Module,
Front Seat Warmer Control Module
AMP 25AAMP, DC-DC Converter (Smartstream G 2.0 Atkinson ISG
only)
HEATED MIRROR 10ADRV/PAS Outside Mirror Heated, A/C Control Module,
A/C Controller, ECU (N Line only)
DOOR LOCK 20A Door Lock/Unlock Actuator
IAU 10A BLE Unit, IAU, Driver/Passenger Door NFC Module
MODULE3 7.5A Sport Mode Switch, Stop Lamp Switch, IAU
A/BAG IND 7.5A Instrument Cluster, Overhead Console Lamp
WASHER 15A Multifunction Switch
P/SEAT PASS 30A Power Seat
P/SEAT DRV 30A Power Seat
WIPER 10A PCM/ECM, IBU
MODULE1 10ADriver/Passenger Smart Key Outside Handle, Crash
Pad Switch, Sport Mode Switch, Data Link Connector,
Hazard Switch, Key Solenoid
SUNROOF 20A Sunroof Motor
USB CHARGER 15A Front USB Charger
IG1 25A PCB Block (Fuse - ABS3, ECU5, EOP2, TCU2)

Maintenance9-52
Engine compartment fuse panel
Type Fuse Name Fuse Rating Circuit Protected
MULTI
FUSE
-3 ALT
150A
180A [Smartstream G 2.0 Atkinson with AMS2]
Alternator, (Fuse - ABS1, ABS2, EOP1, POWER
OUTLET1)
[Smartstream G 2.0 Atkinson & Smartstream
G1.6 T-GDi without AMS2] Alternator, (Fuse -
ABS1, ABS2, POWER OUTLET1)
MDPS1 80A MDPS Unit
MULTI
FUSE-2 COOLING
FAN2 60A [G4FP] Cooling Fan Controller
DCT3 40A [G4FP] SGA
MULTI
FUSE-1 B+5
60APCB Block (Engine Control Relay, Fuse -
ECU3, ECU4, HORN, WIPER, A/C)
B+1 60AICU Junction Block (IPS2/IPS5/IPS6/IPS7/
IPS14)
B+2 60AICU Junction Block (IPS1/IPS4/IPS8/IPS9/
IPS10)
B+3 50AICU Junction Block (Fuse - TRUNK, AMP,
SAFETY P/WINDOW DRV, P/SEAT DRV, P/
SEAT PASS, S/HEATER FRT, S/HEATER RR,
Long Term Load Latch Relay)
EPB 60A ESC Control Module
PTC HEATER 50A PTC HEATER
BLOWER 40ABLOWER Motor, Multipurpose Check
Connector
IG1 40AE/R Junction Block (PDM (IG1/ACC) Relay),
Ignition Switch
IG2 40AE/R Junction Block (PDM (IG2) Relay, Start
Relay), Ignition Switch

Maintenance9-54
Engine compartment fuse panel
Fuse Name Fuse Rating Circuit Protected
WIPER 25A
Wiper Motor
ECU4 15A PCM/ECM
A/C 10A[G4FM] A/C Compressor (Smartstream G 2.0 Atkinson
only)
HORN 15A Horn
IGN COIL 20A Ignition Coil #1~#4
ECU3 15A PCM/ECM
SENSOR3 10A E/R Junction Block (Fuel Pump Relay)
ECU2 10A PCM/ECM (Smartstream G1.6 T-GDi only)
SENSOR2 10A[G4NS] Variable Intake Solenoid Valve, Oil Pump
Solenoid Valve, Oil Control Valve #1/#2, Canister Close
Valve, Purge Control Solenoid Valve,
PCB Block (A/C Relay), E/R Junction Block (Cooling
Fan1/2 Relay)
[G4FP] Variable Oil Pump Solenoid, Oil Control Valve
#1/#2, Purge ControL Solenoid Valve, RCV Control
Solenoid Valve, CanisteR Close Valve
ECU5 10ACVVD Actuator (Smartstream G1.6 T-GDi only), ECM/
PCM, Ignition Lock
SENSOR1 15A Oxygen Sensor (UP/DOWN)
ABS3 10AABS Control Module, ESC Control Module, Multipurpose
Check Connector
INJECTOR 15A[G4FM/G4FG/G4NA] Injector #1~#4 (Smartstream G 2.0
Atkinson only)
ECU1 20A PCM/ECM
TCU2 15ATransaxle Range Switch, [G4FP] TCM (Smartstream G1.6
T-GDi & DCT only)