Hyundai i40 is a family car that was produced in 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 with both diesel and gasoline engines. During this time, the model has undergone restyling. In this article, you will find a description of the fuses and relays of the Hyundai i40 with block diagrams and their locations. We note the cigarette lighter fuse.

The design of the blocks and the purpose of their elements may differ from those shown and depend on the year of manufacture and equipment level. Compare the description with your diagrams on the back of the protective cover.
Cabin block
It is located at the bottom of the instrument panel, remove the protective cover for access.

Scheme

Description
| POWER OUTLET 2 | Console power outlet, rear power outlet |
| POWER TAIL GATE | Electric trunk lid |
| MODULE 1 | Electronic key control unit, VCM, audio system, amplifier, JBL AMR, head unit with navigation, DC converter (audio system/amplifier), console ceiling lamp, parking assist system, power exterior mirror switch |
| MODULE 4 | Relay and fuse block (relay 12), brake light switch, multi-function diagnostic connector, active air damper device, fuel filter condition warning sensor (D4FD) |
| MODULE 3 | Electronic key control unit, BCM, panoramic sunroof, rain sensor, driver/passenger CCS control module, ICM relay unit (headlight washer relay) |
| POWER OUTLET 1 | Front power socket |
| P/SEAT PASS | Manual switch on passenger side |
| HTD MIRR | Driver/passenger side power exterior mirror, EBUD/R SM, air conditioning control unit |
| AMP | Amplifier, JBL AMP, DC to DC converter (amplifier) |
| WIPER FRT | ICM relay block (rain sensor relay), multifunction switch, engine compartment relay and fuse block (relay 7), windshield wiper motor |
| A/CON | Engine compartment relay and fuse block (relay 4), EMS block (fuel heater relay), diesel block (heater relay with PTK No. 2/No. 3), air conditioning control unit |
| STEERING WHEEL HEATER | Steering wheel heater |
| P/WDW LH | Left door power window relay, driver/passenger power window main switch, power window module with anti-pinch protection, rear left power window module with anti-pinch protection, rear power window module |
| PDM 1 | Trunk lid release relay, trunk lid latch (sedan), power trunk lid latch/trunk lid latch (wagon), ICM relay block (fuel filter lock/unlock relay) |
| P/SEAT DRV | Driver IMS unit, manual switch on driver’s side |
| MODULE 2 | VCM, immobilizer module, converter (audio system/amplifier), audio system, electrochromic mirror, lane keeping assist module, air conditioning control module, left/right headlight, driver’s IMS module, automatic headlight range adjustment device, portable lamp, automatic headlight range adjustment device drive (left/right), rear left/right seat heater, tire pressure monitoring module, driver/passenger CCS control module, automatic transmission selector lever indicator, console switch, driver/passenger seat heating module |
| WIPER RR | Rear wiper relay, rear wiper motor, multifunction switch, rear curtain module |
| BRAKE SWITCH | Brake light switch |
| P/WDW RH | Right door power window relay, driver/passenger power window master switch, power window module with anti-pinch protection, power window module with anti-pinch protection for the rear right window, power window module with anti-pinch protection for the rear right window |
| PDM 2 | Electronic key control unit, start and stop button, immobilizer module |
| MODULE 5 | Driver/passenger side electronic key exterior handle, driver/passenger side power exterior mirror, active air flap device, left/right rear seat heater switch, automatic light sensor and photocell, sports mode switch, key solenoid |
| IG1 | Relay and fuse block (fuse F27, F28, F29, F30, F31) |
| MODULE 6 | Instrument cluster, front left/right seat heater switch, front adaptive lighting module, electric parking brake module |
| MDPS | EPS control unit |
| DR LOCK | Door lock/unlock relay, ICM relay block (double lock relay), passenger/driver side door lock actuator, rear left/right door lock actuator |
| S/HEATER FRT | Driver/passenger seat CCS control unit, driver/passenger seat heater control unit |
| INTERIOR LAMP | Driver/passenger door lamp, overhead console lamp, portable lamp, ceiling lamp, glove compartment lamp, trunk lamp, driver/passenger side step lamp, trunk light lamp, rear left/right individual light lamp, driver’s left/right lamp |
| MULTIMEDIA | Audio system, audiovisual head unit with navigation, converter (audio system) |
| A/BAG | SRS control unit |
| CURTAIN | Rear curtain module |
| MEMORY 1 | Instrument cluster, tire pressure monitoring module, rear curtain module, tilt sensor, air conditioning control module, VCM, ultrasonic sensor for protection against unauthorized access to the cabin, IMS driver siren module, power exterior mirror switch |
| A/BAG IND | Combination of devices |
| PDM 3 | Electronic key control unit |
| S/HEATER RR | Rear seat heater unit (left/right) |
| MEMORY 2 | Radio receiver |
| PDM 1 | Electronic key control unit |
| START | Without start button: engine compartment relay and fuse block (relay 8), ignition switch, automatic transmission range selector; with start button: ECM/RSM, automatic transmission range selector |
| SUNROOF | Panoramic sunroof |
The fuses marked POWER OUTLET are responsible for the cigarette lighter and additional sockets.
Block under the hood
Located in the left side of the engine compartment.

Scheme

Appointment
| MDPS | EPS control unit |
| B+ 1 | Junction box l/P (IPS 0 (4CH), IPS 1 (4CH), IPS 2 (2CH), fuse F13/F14/F19/ F20/F21/F26/F36) |
| ABS 1 | ESP control unit, multi-function diagnostic connector |
| ABS 2 | ESP control unit, multi-function diagnostic connector |
| IG 2 | Relay 9 (starting relay), ignition switch (without start button), relay 6 (MRP relay 4 (START 2), with start button) |
| BLOWER | Relay 4 (fan relay) |
| RR HTD | Relay 11 (rear window heater relay) |
| B+ 2 | Junction box l/P (IPS 3 (4CH), IPS 4 (4CH), fuse F2/F7/F9/F15) |
| AMP | Amplifier, converter (amplifier) |
| EPB 1 | Electric parking brake module |
| EPB 2 | Electric parking brake module |
| C/FAN | Relay 1 (cooling fan relay (low), Relay 2 (cooling fan relay (high)) |
| FRONT | ICM relay block (windshield defroster relay) |
| GOD | Relay 5 (horn relay), ICM relay block (windshield defroster relay) |
| HORN | Relay 12 (NAS relay), brake light relay |
| STOP LAMP | ICM relay block (headlight washer relay) |
Additional unit
It is installed on diesel versions of the Hyundai i40 on the right side of the engine compartment.

Here are the elements responsible for the operation of the engine: GLOW – glow plugs, RTS – additional heater / preheater.