maintenance HYUNDAI I20 2023 Workshop Manual

9-48
Maintenance
Engine compartment fuse panel
OBC3N091018AU
Inside the fuse/relay box covers, you can
find the fuse/relay label describing fuse/
relay names and ratings.
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OBC3090035OBC3090034
„Smartstream G 1.0 T-GDi„Smartstream G1.0 T-GDi (48V) MHEV

9-50
Maintenance
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Fuse Name Symbol Relay Name Type
RLY.1 E30Main Relay MINI
RLY.2 E31
Cooling Fan Relay MINI
RLY.3 E32
Wiper (High) Relay MICRO
RLY.4 E33
Wiper (Low) Relay MICRO
RLY.5 E34
Fuel Pump Relay MICRO
RLY.6 E36
Start Relay MICRO
RLY.7 E36
RR WIPER Relay MICRO
RLY.10 E39 A/CON Relay MICRO
RLY.11 E40
Horn Relay MICRO
RLY.12 E41
B/Alarm Horn Relay MICRO
RLY.13 E42
Blower Relay MICRO
RLY.14 E43
PTC Heater Relay MICRO

9-52
Maintenance
Fuse Name Symbol (A) Circuit Protected
IGN COIL15A Ignition Coil #1/#2/#3
ECU5
20A ECM
ECU6
15A ECM
SENSOR 1
10AE/R Junction Block (RLY.2/10),
Oil Control Valve #1/#2 (Intake/Exhaust),
Purge Control Solenoid Valve, RCV Control, V_Oil
Pump Solenoid Valve
SENSOR 2
10A Oxygen Sensor (Up/Down)
RR DEFOG
40A ICU Junction Block (Rear Defogger Relay)
ABS 1
40A ESP Control Module
BLOWER
40A E/R Junction Block (RLY.13)
PTC
HEATER
50A E/R Junction Block (RLY.14)
ABS 2
30A ESP Control Module
POWER
OUTLET
40A ICU Junction Block (Power Outlet Relay)
WIPER 2
10A E/T Junction Block (RLY. 4), Front Wiper Motor, IBU
SENSOR3
15A E/T Junction Block (RLY. 5)
MHSG
10A Mild Hybrid Starter & Generator Motor
BATTERY
C/FAN
10A BMS Cooling Fan, E/R Junction Block (Fuse - F8)
WIPER 1
25AE/T Junction Block (RLY. 4), Front Wiper Motor,
Ignition Switch
BATTERY
MANAGEMENT2
10ABMS Control Module, E/R Junction Block (Fuse -
F8)
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9-54
Maintenance
Fuse Name Symbol (A) Circuit Protected
ALT(125A)
[150A]Alternator, Multi Fuse - F2, Fuse - F31/F32/F33/F34/
F35/F36
MDPS
80A MDPS Unit
ECU1
30A E/R Junction Block (RLY.1)
IG1
30A[With Smart Key] PDM Relay Box (IG1, ACC Relay)
[W/O Smart Key] Ignition Switch
FUEL PUMP
20A E/R Junction Block (RLY.5)
ECU3
15A ECM, Clutch Switch
ECU2
15A ECM
A/CON 1
10A E/R Junction Block (RLY.8)
IG2
30A[With Smart Key] PDM Relay Box (IG2 Relay)
[W/O Smart Key] Ignition Switch, START MTR RLY
BATT1
50AICU Junction Block (IPS1, IPS3, IPS5, IPS7, IPS8,
IPS11)
BATT3
50AICU Junction Block (Fuse - F8/F15/F21/F25/F29,
Long Term Load Latch Relay-F16/F9/F22)
HORN
15A E/R Junction Block (RLY.11, RLY.12)
AMS
10A Battery Sensor
BATT2
50A ICU Junction Block (IPS2, IPS4, IPS6, IPS9, IPS10)
BATT4
50AICU Junction Block (Power Window Relay-F5/F12,
Fuse - F3/F4/F10/F11)
C/FAN
40A E/R Junction Block (RLY.9/10)
IGN COIL
20A Ignition Coil #1/#2/#3/#4
ECU5
20A ECM
ECU6
15A ECM
SENSOR 1
10AE/R Junction Block (RLY.8/9/10),
Oil Control Valve #1/#2 (Intake/Exhaust),
Purge Control Solenoid Valve
SENSOR 2
10A Oxygen Sensor (Up/Down)
RR DEFOG
40A ICU Junction Block (Rear Defogger Relay)
ABS 1
40A ESP Control Module
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9-56
Maintenance
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Fuse Name Symbol Relay Name Type
RLY.1 E30Main Relay MINI
RLY.3 E32
Wiper (High) Relay MICRO
RLY.4 E33
Wiper (Low) Relay MICRO
RLY.5 E34
Fuel Pump Relay MICRO
RLY.6 E36
Start Relay MICRO
RLY.7 E36
RR WIPER Relay MICRO
RLY.9 E38
Cooling Fan High Relay MICRO
RLY.10 E39
Cooling Fan Low Relay MICRO
RLY.11 E40
Horn Relay MICRO
RLY.12 E41
B/Alarm Horn Relay MICRO
RLY.13 E42 Blower Relay MICRO
RLY.14 E43
PTC Heater Relay MICRO

9-58
Maintenance
3HWURO
Fuse Name Symbol (A) Circuit Protected
ABS 140A ESP Control Module
BLOWER
40A E/R Junction Block (RLY.13)
PTC
HEATER
50A E/R Junction Block (RLY.14)
ABS 2
30A ESP Control Module
POWER
OUTLET
40A ICU Junction Block (Power Outlet Relay)
WIPER 2
10A E/R Junction Block (RLY. 4), Front Wiper Motor, IBU
INJECTOR
15A E/R Junction Block (RLY. 5), Injector #1/#2/#3/#4
WIPER 1
25AE/R Junction Block (RLY. 4), Front Wiper Motor,
Ignition Switch

9-60
Maintenance
Headlight, Position Light,
Turn signal Light bulb
replacement
Type A
OBC3N090030
(1) Headlight (Low/High)
(2) Turn signal light
(3) Position light (if equipped)
(4) Daytime running light/
D.R.L & Position
Type B -N line
OBC3TN091003
(1) Headlight (Low/High)
(2) Turn signal light
(3) Daytime running light & Position light
Type C - CUV
OBC3V091001
(1) Headlight(Low/High)
(2) Turn signal light
(3) Daytime running light & Position light
*1 : MFR (Multi Focus Reflector) Headlight

9-62
Maintenance
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1. Turn the front wheel at inwards.
OAC3089042TU
OAC3089043TU
OBC3090055
2. Remove the Wheel guard clips (B),
bumper cover bolt (A) and bumper
upper cover blots (C).
3. Push the wheel guard aside and
remove the headlight bulb cover by
turning it counterclockwise from bulb
assembly.
OBC3090038
OBC3TN091005
„CUV
4. Disconnect the headlight bulb socket-
connector.
5. Unsnap the headlight bulb retaining
wire by depressing the end and
pushing it upward.
6. Remove the bulb from the headlight
assembly.
7. Install a new headlight bulb and snap
the headlight bulb retaining wire into
position by aligning the wire with the
groove on the bulb.
8. Connect the headlight bulb socket
connector.
9. Install the headlight bulb cover by
turning it clockwise.
10. Install the wheel guard in the reverse
order.

9-64
Maintenance
Type D (LED)
OBC3090037
Type E (LED)-N line
OBC3TN091001
(1) headlight (Low)
(2) headlight (High)
(3) Static Bending Light
(4) Turn signal light
(5) Daytime running light & Position light
(6) Front fog light
Type F (LED)-CUV
OBC3V091005
(1) Headlight (Low)
(2) Headlight (High)
(3) Static Bending Light
(4) Daytime running light & Position &
Turn signal light
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If the LED lamp does not operate,
we recommend that the system be
inspected by a HYUNDAI authorised
repairer. The LED lamps cannot be
replaced as a single unit because it is an
integrated unit. The LED lamp has to be
replaced with the unit.
Unless a skilled technician checks or
repairs the LED lamp, it may damage
related parts of the vehicle.

9-66
Maintenance
3. Draw vertical lines (Vertical lines
passing through respective head
light centres) and a horizontal line
(Horizontal line passing through
centre of head lamps) on the screen.
4. With the headlight and battery in
normal condition, aim the headlights
so the brightest portion falls on the
horizontal and vertical lines.
5. To aim the low beam left or
right, turn the driver clockwise or
counterclockwise. To aim the low
beam up or down, turn the driver
clockwise or counterclockwise.
To aim the high beam up or
down, turn the driver clockwise or
counterclockwise.Front fog light aiming (if equipped)
OBC3090042
The front fog light can be aimed as the
same manner of the head lights aiming.
With the front fog lights and battery
normal condition, aim the front fog
lights. To aim the front fog light up
or down, turn the driver clockwise or
counterclockwise.