Fuses and relays Hyundai i20 (PB / GB; 2008 - 2021)

The i20 is a supermini hatchback produced by Hyundai since 2008. The model made its debut at the Paris Motor Show in October 2008 and is positioned between the i10 and i30 models. In this article we will understand in detail fuse box diagrams Hyundai i20 (first and second generation; PB / GB index) 2008, 2009, 2009, 2010, 2011, 2011, 2012, 2013, 2014, 2015, 2015, 2016, 2017, 2017, 2018, 2019, 2020, 2021 years of manufacture.

Here you will find the locations and photos of the mounting blocks. Also, we will separately mark the fuses responsible for the cigarette lighter and the fuel pump.

In the engine compartment

Location of underhood units.

Main fuse box

Located on the left side of the engine compartment, next to the battery.

Type 1

General view.

Diagram
Name	Description
BATT 2	Instrument panel junction box (relay for electric drive glass lifters, fuses (SAFETY P / W - 15 A, HAZARD - 15 A))
BATT 1	Instrument Panel Junction Box (Tail Lamp Relays, Fuses (S / ROOF - 20 A, FOLDING - 10 A, DR LOCK - 20 A, STOP LP - 15 A, V / A HORN - 15 A, RR FOG LP - 10 A , FRT FOG LP - 10 A, power connector (ROOM - 10 A, AUDIO - 20 A))
C / FAN	High speed cooling fan relay, low speed cooling fan relay
MAIN	Alternator, fuses (ABS 1 - 40 A. ABS 2 - 40 A, RR HTD - 40 A, BLOWER - 40 A, MDPS - 80 A, A / CON 1 - 10 A)
ABS2	Multipurpose test connector, anti-lock brake system (ABS) control unit, electronic stability control (ESP) control unit
ABS 1	Multipurpose test connector, anti-lock brake system (ABS) control unit, electronic stability control (ESP) control unit
RR HTD	Rear heating relay
BLOWER	Fan relay
MDPS	Electronic stability control (ESP) control unit
IGN 2	Ignition
ECU A	Engine control module (ECM) (with manual transmission), transmission control module (PCM) (with automatic transmission), engine control relay (main relay)
F / PUMP	Hyundai i20 fuel pump fuse
IGN 1	Egnition lock
HORN	Horn relay
SNSR 1	Camshaft position sensor, fuel vapor storage purge control solenoid valve, oxygen sensor (upper, lower), immobilizer control unit, cooling fan low speed relay, cooling fan high speed relay
ECU B	Engine Control Module (ECM) (with manual transmission), Transmission Control Module (PCM) (with automatic transmission)
DRL	Ground (body electronic control module (BCM))
ECU 1	Engine Control Module (ECM) (with manual transmission), Transmission Control Module (PCM) (with automatic transmission)
INJ	Injectors 1-4, idle speed control actuator, air conditioning relay, oil flow control valve (GAMMA)
A / CON2	Air conditioner control unit
A / CON 1	Air conditioner relay

Type 2

General view.

Diagram
№	Decrtiption	Amps
1	Empty	-
2	Empty	-
3	Ignition switch	50
4	Engine control relay	30
5	Fuel filter heater relay	30
6	Ignition switch	40
7	Horn relay	10
8	Empty	-
9	Empty	-
10	Oxygen sensor, Brake light switch, Air heater, Cooling fan, low speed relay / Cooling fan, high speed relay	10
11	Empty	-
12	Ground	10
13	Fuel pressure regulator	10
14	Engine control unit	20
15	EGR, immobilizer control unit, engine compartment fuse and relay box, relays R1, R4, air conditioning relay, variable geometry turbine (VGT), camshaft position sensor	15
16	Empty	-
17	Air-conditioning control unit	10
18	Empty	-
19	Empty	-
20	Air-conditioning relay	10
21	Fuse and relay box in passenger compartment, relay R2 and fuses 21, 22	50
22	Fuse and relay box in passenger compartment, relay R8 and  fuses 2 – 7, 25, 33, 34	50
23	Cooling fan, high-speed relay / Cooling fan, low-speed relay	30
24	Fuse and relay box in engine compartment, fuses 20, 25 – 29, 34, Generator	125
25	ESP control unit, Multi-purpose check connector, ABS control unit	40
26	ESP control unit, Multi-purpose check connector, ABS control unit	40
27	Rear heater relay	40
28	Blower relay	40
29	EPS control unit	80
30	Spare	25
31	Spare	20
32	Spare	15
33	Spare	10
34	Fuse and relay box No. 1 in engine compartment, relays R1 – R4	150
R1	Empty
R2	Blower relay
R3	Fuel filter heater
R4	Engine control unit
R5	Daylight running system relay
R6	Air-conditioning relay
R7	Starter relay
R8	Security alarm system relay
R9	Horn relay
R10	Cooling fan, low-speed relay
R11	Cooling fan, high-speed relay

Additional block

Fits on the right side of the engine compartment on i20 diesel models.

Desctiption:

• R1 - Glow plug relay;
• R2 - PTC, relay 3;
• R3 - PTC, relay 2;
• R4 - PTC, relay 1;
• 1 - PTC relay 3 50A;
• 2 - PTC relay 2 50A;
• 3 - PTC relay 1 50A;
• 4 - Glow plug relay / Air heating 80A.

In the passenger compartment

Located at the bottom of the dashboard.

Type 1

First version of the unit.

Diagram
Name	Descripion
P / WDW -LH	Power window main switch, driver's door power window automatic interlock assembly, right rear door glass control switch, front passenger door glass control switch (for right-hand drive vehicles)
S / HTD	Front passenger seat heating switch, driver's seat heating switch
RR WIPER	Rear window wiper motor, multifunction switch (wiper control switch)
H / LP RH	Headlight right, dashboard (headlights on)
IGN 2	Headlight leveling switch, cabin temperature sensor, electronic body control module (BCM), air conditioning control module, sunroof control module, left/right headlights, engine compartment fuse and relay box (fuel filter heater relay (FFHS), daytime running light relay (DRL), blower relay), diesel fuse/relay box (heater relay PTC 2, heater relay PTC 3)
PCU	Fuel filter warning sensor, air flow sensor, engine control module (ECM) (with manual transmission), transmission control module (PCM) (with automatic transmission)
STOP LP	Brake Light Switch, Data Link Connector (DLC), Power Window Relay
A / BAG	Seat Belt Not Fastened Sensor Module, SRS Control Module
HAZARD	Alarm switch, alarm relay
SAFETY P / W	Automatic blocking block of the electric drive glass of the driver's door lift
CLUSTER	On-board computer, instrument panel (backlight), body electronic control module (BCM)
TCU	Overdrive switch, pulse generator “A”, pulse generator “B”, vehicle speed sensor
IGN1	Alternator (KAPPA), Electric Power Steering (EPS) Control Unit, Tire Pressure Monitor
ABS	Electronic stability system (ESP) switch, steering angle sensor, anti-lock brake system (ABS) control unit, ESP control unit, yaw angle sensor, engine compartment fuse and relay box (multi-purpose test connector)
IGN COIL	Ignition coil (KAPPA), ignition coils Nos. 1 - 4 (GAMMA), capacitor (GAMMA)
B / UP LP	Transmission mode switch (GAMMA), reversing lamp switch
A / BAG IND	Dashboard (airbag lighting)
T / SIG LP	Hazard switch
TAIL LP LH	Daytime running light relay (DRL), license plate light, left rear combination light, left headlight
TAIL LP RH	Headlight right, right rear combination lamp, lighting
ACC	Electric drive of outside rear-view mirrors, audio system, on-board computer
C / LIGHT	Hyundai i20 cigarette lighter fuse
RR FOG LP	Rear fog lamp relay
B / A HORN	Anti-theft alarm relay
DR LOCK	Tailgate unlock relay, door lock / unlock relay, full door lock relay
FRT FOG LP	Front fog lamp relay
FOLDING	Power outside rearview mirror control switch
S / ROOF	Sunroof control unit
START	Engine Control Module (ECM) (for diesel vehicles), engine compartment fuse box and relays (starter relay, anti-theft alarm relay)

Type 2

General view of the Hyundai i20 interior fuse box.

Diagram
№	Description	Amps
R1	Rear heater relay
R2	Power window relay
R3	Front fog light relay
R4	Rear fog light relay
R5	Empty
R6	Door unlock relay / Door lock relay
R7	Tailgate unlocking relay / Tailgate lock relay
R8	Tail light relay
R9	Daylight running system relay
R10	Hazard warning light relay
1	Fuse and relay box in engine compartment (relays R7, R8), Engine control unit or not used	10
2	Sunroof control unit	20
3	Folding/unfolding function of exterior mirrors	10
4	Front fog light relay	10
5	Door lock relay, door lock relay, door unlock relay, tailgate unlock relay	20
6	Relay of the alarm system	15
7	Rear fog light relay	10
8	Not used	25
9	Cigarette lighter fuse	15
10	Audio, Trip computer, Electric mirrors	10
11	Lighting, right headlamp, rear combination lamp(s)	10
12	License plate light, Rear left combination light, Left headlight, Daylight running system relay	10
13	Hazard warning switch	10
14	Instrument panel	10
15	Rear light switch, transmission range selector switch	10
16	Condenser, Ignition coils 1 – 4	15
17	Fuse and relay box in engine compartment (diagnostic connector), ESP control unit, Electronic stability program (ESP) switch, Steering angle sensor, Yaw rate sensor, ABS control unit	10
18	EPS Control Unit, Tire Pressure Monitoring System Control Unit, Generator	10
19	Pulse generator, Vehicle speed sensor, Overdrive main switch	10
20	Instrument panel, trip computer, body control module (BCM)	10
21	Driver’s power window	15
22	Hazard warning light relay, Hazard warning switch	15
23	SRS control unit, Seat belt switch	10
24	Not used	25
25	Data link connector, Power window relay, Brake light switch	15
26	Mass air flow meter, engine control unit, powertrain control module (PCM), fuel filter warning	10
27	Fuse box No. 1 in engine compartment, relays R2, R3, Fuse and relay box in engine compartment, relays R2, R3, R5, Air-conditioning control unit, Headlights, Sunroof control unit, Body control unit (BCM), In-car temperature sensor, Headlight levelling switch	10
28	Instrument panel, Right headlight	10
29	Multifunction switch, Rear wiper motor	15
30	Heated front seat(s) switch	15
31	Driver's power window, Rear left power window switch, Passenger power window switch (right-hand drive), Power windows, main switch	25
32	Driver’s power window, Switch, rear right power window(s), Passenger’s power window switch (left-hand drive), Power windows, main switch	25
33	Open door, instrument panel, trip computer, air conditioner control unit, luggage compartment lighting, overhead console, front interior lamps, interior lighting, rear heater relay, tire pressure monitoring system control unit, body control module (BCM)	10
34	Audio	20
35	Left headlight	10
36	Powertrain control unit (PCM), Air-conditioning control unit, Electric mirrors, Engine control unit	10
37	Multifunction switch, Front wiper motor	25