2021 HYUNDAI I20 ECU

10-68
Maintenance
Fuse NameSymbolFuse
ratingCircuit Protected
A/C 37.5A MTC,FATC,ECU
DOOR LOCK
20A DOOR ACTUATOR
MODULE 5
10AAT_LEVER_IND, HLLD, ‘SEAT_EXTN_DRV, ‘AUDIO, AMP,
‘MTC/FATC, ECM_MIRR, ‘WIRELESS CHARGER
ABS 3
10A ABS (ANTI-LOCK BRAKE SYSTEM)
BRAKE
SWITCH
7.5A STOP SWITCH
START1
7.5A START RLY
CLUSTER
10A CLUSTER
MODULE 4
10A C_PAD_SW(ESC SW)
IBU 2
15A IBU (INTEGRATED BODY CONTROL UNIT)
ACC 1
10AAMP, O_S_MIRR_SW, AUDIO/AVN, IBU(BCM), VDMS,
REAR USB, USB_CHARGER
MODULE 7
10A MULTI FUNCTION SWITCH
WASHER
15A M/F (WASHER PWR)
MODULE 6
7.5A IBU
Inner Compartment Fuse Panel (ICU)

10-69
10
Fuse NameSymbolFuse
ratingCircuit Protected
IBU 110A IBU (INTEGRATED BODY CONTROL UNIT)
AIR BAG IND
10A CLUSTER
A/C 2
7.5A MTC, FATC, ECU
WIPER RR
15A REAR WIPER MOTOR
ECU 4
10A ECU
MDPS 2
10A MDPS
Inner Compartment Fuse Panel (ICU)

10-71
10
Engine Compartment Fuse Panel (1.0 T-GDi)
Fuse Name SymbolFuse
RatingCircuit Protected
ALT150A Alternator, Multi Fuse - F3, Fuse - F32/F33/F34/F35
MDPS
80A MDPS Unit
DCT1
40A TCU
E-CLUTCH1
40A Electronic Clutch Module
DCT2
40A TCU
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.6)
ECU3
15A ECU
ECU2
15A ECU
A/CON 1
10A E/R Junction Block (RLY.3)
DCT4
40A Smart Gear Actuator
BATT4
40AICU Junction Block
(Power Window Relay, Fuse - F3/F10/F11)
BATT1
50A ICU Junction Block (IPS1, IPS3, IPS5, IPS7, IPS8, IPS11)
BATT3
40AICU Junction Block (Fuse - F8/F21/F25/F29,
Long Term Load Latch Relay)
DCT3
15A TCU
E-CLUTCH2
15A Electronic Clutch Module
HORN
15A E/R Junction Block (RLY.11, RLY.12)

10-72
Maintenance
Engine Compartment Fuse Panel (1.0 T-GDi)
Fuse Name SymbolFuse
RatingCircuit Protected
BATT250A ICU Junction Block (IPS2, IPS4, IPS6, IPS9, IPS10)
IG2
40AE/R Junction Block (RLY.9).
[With Smart Key] PDM Relay Box (IG2 Relay)
[W/O Smart Key] Ignition Switch
C/FAN
60A E/R Junction Block (RLY.2)
IGN COIL
20A Ignition Coil #1/#2/#3
ECU5
20A ECU
SENSOR 1
10AE/R Junction Block (RLY.2/3),
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 ABS/ESP Control Module
ABS 2
30A ABS/ESP Control Module
BLOWER
40A E/R Junction Block (RLY.10)
WIPER 2
10A E/R Junction Block (RLY. 5), Front Wiper Motor, IBU
SENSOR8
15A E/R Junction Block (RLY. 6)
SENSOR3
10A RCV Control Solenoid Valve
ECU6
15A ECU
WIPER 1
25A E/R Junction Block (RLY. 5), Front Wiper Motor

10-73
10
Engine Compartment Fuse Panel (Smartstream G1.2)
Fuse Name SymbolFuse
RatingCircuit Protected
ALT125A Alternator, Multi Fuse - F3, Fuse - F32/F33/F34/F35
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.6)
ECU3
15A ECU/PCU
ECU2
15A ECU/PCU
A/CON 1
10A E/R Junction Block (RLY.3)
BATT4
40AICU Junction Block
(Power Window Relay, Fuse - F3/F10/F11)
BATT1
50A ICU Junction Block (IPS1, IPS3, IPS5, IPS7, IPS8, IPS11)
BATT3
40AICU Junction Block (Fuse - F8/F21/F25/F29,
Long Term Load Latch Relay)
HORN
15A E/R Junction Block (RLY.11, RLY.12)
BATT2
50A ICU Junction Block (IPS2, IPS4, IPS6, IPS9, IPS10)
IG2
40AE/R Junction Block (RLY.9).
[With Smart Key] PDM Relay Box (IG2 Relay)
[W/O Smart Key] Ignition Switch
C/FAN
40A E/R Junction Block (RLY.2)
IGN COIL
20A Ignition Coil #1/#2/#3/#4

10-74
Maintenance
Engine Compartment Fuse Panel (Smartstream G1.2)
Fuse Name SymbolFuse
RatingCircuit Protected
ECU520A ECU/PCU
SENSOR 1
10AE/R Junction Block (RLY.2/3),
Front Wheel Sensor RH,
Oil Control Valve #1/#2 (Intake/Exhaust),
Purge Control Solenoid Valve,
Variable Intake Solenoid Valve
SENSOR 2
10A Oxygen Sensor (Up/Down)
RR DEFOG
40A ICU Junction Block (Rear Defogger Relay)
ABS 1
40A ABS/ESP Control Module
ABS 2
30A ABS/ESP Control Module
BLOWER
40A E/R Junction Block (RLY.10)
WIPER 2
10A E/R Junction Block (RLY. 5), Front Wiper Motor, IBU
INJECTOR1
15AE/R Junction Block (RLY. 6),
Injector #1-1/#2-1/#3-1/#4-1
INJECTOR2
15AE/R Junction Block (RLY. 6),
Injector #1-2/#2-2/#3-2/#4-2
ECU6
15A ECU
WIPER 1
25A E/R Junction Block (RLY. 5), Front Wiper Motor

10-75
10
Engine Compartment Fuse Panel (1.5 WGT)
Fuse Name SymbolFuse
RatingCircuit Protected
GLOW100A Glow Relay Unit
ALT
180A Alternator, Multi Fuse - F3, Fuse - F32/F33/F34/F35
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.6)
ECU2
15A ECU
A/CON 1
10A E/R Junction Block (RLY.3)
FUEL HEATER
30A E/R Junction Block (RLY.14)
BATT4
40AICU Junction Block
(Power Window Relay, Fuse - F3/F10/F11)
BATT1
50A ICU Junction Block (IPS1, IPS3, IPS5, IPS7, IPS8, IPS11)
BATT3
40AICU Junction Block (Fuse - F8/F21/F25/F29,
Long Term Load Latch Relay)
HORN
15A E/R Junction Block (RLY.11, RLY.12)
AMS
10A Battery Sensor
BATT2
50A ICU Junction Block (IPS2, IPS4, IPS6, IPS9, IPS10)
IG2
40AE/R Junction Block (RLY.9).
[With Smart Key] PDM Relay Box (IG2 Relay)
[W/O Smart Key] Ignition Switch

10-76
Maintenance
Engine Compartment Fuse Panel (1.5 WGT)
Fuse Name SymbolFuse
RatingCircuit Protected
C/FAN50A E/R Junction Block (RLY.2)
SENSOR 6
15A PM Sensor
ECU5
20A ECU
SENSOR 1
10AE/R Junction Block (RLY.2/3),
Oil Control Valve #1/#2 (Intake/Exhaust),
Purge Control Solenoid Valve
SENSOR 2
10A Oxygen Sensor (Up/Down)
SENSOR 3
10A COOLING FAN, A/CON COMPRESSOR
RR DEFOG
40A ICU Junction Block (Rear Defogger Relay)
ABS 1
40A ABS/ESP Control Module
ABS 2
30A ABS/ESP Control Module
BLOWER
40A E/R Junction Block (RLY.10)
WIPER 2
10A E/R Junction Block (RLY. 5), Front Wiper Motor, IBU
SENSOR 4
10A Inlet Metering Valve, E/R Junction Block (RLY. 6)
SENSOR 5
10AAir Flow Sensor, EGR Cooling Bypass Solenoid Valve,
WGR Vacuum Modulator
WIPER 1
25A E/R Junction Block (RLY. 5), Front Wiper Motor