Hyundai Sonata 7th generation (LF) was produced in 2014, 2015, 2016, 2017, 2018 and 2019. In our publication you will find a description of the fuses and relays of the Hyundai Sonata 7th generation with photos and block diagrams, and we will also show where they are located. We will note the cigarette lighter fuse.

Check the actual purpose of fuses and relays with your diagrams; there may be differences between the presented material and your unit.
Cabin block
This unit is located at the bottom of the instrument panel, behind a protective cover.

Example of a circuit from the block cover

Scheme

Description
| SAFETY WINDOW LH | 25A Driver Safety Power Window Module |
| P/SEAT PASS | 30A Manual switch on passenger seat |
| P/WDW LH | 20A Power window master switch, rear left power window module |
| P/WDW RH | 25A Power window master switch, rear right power window module, passenger door module, passenger power window switch |
| DR LOCK | 20A Door lock relay, door unlock relay |
| S/HEATER FRT | 25A Seat module with front seat ventilation, Front seat heating module |
| BRAKE SWITCH | 10A Brake light switch, immobilizer module, smart key control module |
| 8 MODULE | 7.5A BCM, smart key control module |
| SAFETY POWER WINDOW RH | 25A Passenger Safety Power Window Lift Module |
| SMART KEY | 15A Smart Key Control Module |
| TRUNK | 10A Trunk lid relay, fuel filler door and trunk lid switch |
| 7 MODULE | 10A Digital clock, driver/passenger door module |
| INTERIOR LAMP | 10A Ignition key III. & Door signal switch, Front wash basin lamp switch, left/right, Overhead console lamp, Interior light lamp, Left/right rear personal lamp, Luggage compartment lamp, Driver/passenger smart key exterior handle |
| 2 MEMORY | 7.5A Not used |
| P/SEAT DRV | 30A Driver’s seat manual control switch, driver’s IMS module |
| CLUSTER | 10A Instrument panel |
| 4 MODULE | 10A Immobilizer module, smart key control module |
| MULTIMEDIA | 15A Main audio/video and navigation unit |
| 1 MEMORY | 10A Driver/Passenger Door Module, Driver IMS Module, Air Conditioning Control Module, Automatic Light and Photo Sensor, Electrochromic Mirror, Instrument Cluster, Tire Pressure Monitoring Module, Digital Clock, Wireless Charger, Main Audio/Video and Navigation Unit |
| S/HEATER RR | 25A Rear seat heating module |
| 2 SUN ROOF | 20A Panoramic sunroof motor |
| 9 MODULE | 7.5A Seat module with front seat ventilation, Front seat heating module, Rear seat heating module |
| MDPS | 7.5A MDPS Unit (column type/rack type) |
| 3 MODULE | 10A BCM, sport mode switch, brake light switch |
| 1 MODULE | 7.5A Key solenoid valve, driver/passenger door module |
| 1 SUN ROOF | 20A [With panorama] Sunroof motor with panorama [Without panorama] Sunroof motor |
| A/CON | 7.5A Air conditioning control module, E/R connector block (fan relay) |
| 2 MODULE | 10A A/V and navigation head unit, digital clock, USB charger, BCM, AMP, power outside mirror switch, wireless charger, smart key control module, overhead console lamp, E/R junction box (power outlet relay) |
| A/BAG IND | 7.5A Instrument panel |
| 6 MODULE | 10A Multi-purpose control connector, air conditioning control module, audio/video and navigation system head unit, front ventilated seat module, front seat heater module, rear seat heater module, driver IMS module, left/right headlight (DBL), IND shift lever. |
| AMP | 25A Amplifier AMP (JBL/MOBIS) |
| HTD STRG | 15A Heater relay, BCM |
| 5 MODULE | 10A Front console switch, tire pressure monitoring module, lane departure warning module, intelligent cruise control unit, fuel filler flap and trunk lid switch, AEB module, left/right headlight (DBL), rear left/right parking assist sensor, rear parking assist sensor LH/RH (center), blind spot detection radar, left/right |
| IG1 | 25A PCB unit (fuse – VACUUM PUMP2/TCU2/ECU3/ABS3) |
| WASHER | 15A Multifunction switch (wiper lower friction switch and washer switch) |
| POWER OUTLET | 20A Front socket |
| A/BAG | 15A SRS control module, presence detection sensor |
| START | 7.5A [Without smart key and IMMO.] ICM relay unit (security alarm relay) [with smart key / IMMO.] Transmission range switch, PCM (G4KJ / G4KH) |
| 10 MODULE | 10А BCM |
The front cigarette lighter is controlled by a fuse marked POWER OUTLET at 20A. The remaining sockets are controlled by elements in the unit under the hood.
Block under the hood
Located on the left side of the engine compartment, next to the battery.




Marking
| IG2 | 30A [Without smart key] (starting relay), ignition switch, [with smart key] (starting relay), PCB unit (IG2 relay) |
| 3 TCU | 40А [G4FJ – DCT] TCM |
| BLOWER | 40A Fan Relay |
| 1 ABS | 40A ESC Module |
| REAR HEATED | 50A Rear heater relay |
| 1 B+ | 50A Intelligent Connection Unit (IPS2 (4CH), IPS3 (4CH)) |
| 1 COOLING FAN | 50A [G4KH/G4FJ] (cooling fan relay), [G4KJ] (cooling fan relay) |
| 2 COOLING FAN | 60A [G4KH/G4FJ] (cooling fan relay) |
| 1 MDPS | 80A MDPS Unit (Column Type) |
| 2 ABS | 30A ESC module, multi-purpose control connector |
| IG1 | 40A [Without smart key] Ignition switch, [With smart key] PCB unit (IG1/ACC relay) |
| 4 TCU | 40А [G4FJ – DCT] TCM |
| 3 POWER OUTLET | 40A (Socket Relay) |
| 2 B+ | 50A Intelligent Connection Unit (IPS1 (4CH), IPS4 (4CH), IPS5 (4CH), IPS6 (2CH), IPS7 (1CH), Fuse – AMP) |
| 5 B+ | 60A PCB unit (engine control relay, fuse-TUC1, ECU1, HORN, AMS, WIPER) |
| 1 B+ | 60A Intelligent Junction Box (Power Window Relay, Fuse – LEFT SAFETY WINDOW, P/SEAT PASS, RIGHT SAFETY WINDOW, P/SEAT DRV, MODULE1, P/WDW LH, P/WDW RH, TRUN , LUX1) |
| 2 MDPS | 100A MDPS Unit (rack type) |
| 3 E-CVVT | 20А [G4KJ/G4KH] PCM |
| 2 E-CVVT | 20А [G4KJ/G4KH] PCM |
| FUEL PUMP | 20A (Fuel pump relay) |
| H/LAMP HI | 20A high beam headlight relay |
| 1 VACUUM PUMP | 20A [G4KH/G4FJ] Vacuum pump |
| 1 E-CVVT | 40A [G4KJ/G4KH] (E-CVVT relay) |
| 4 B+ | 40A Intelligent Junction Box (Fuse for device with automatic leakage current cut-off – INTERIOR LAMP, MULTIMEDIA, MEMORY1, Fuse – DOOR LOCK, S/HEATER FRONT, BRAKE SWITCH0, KEY 0, KEY, KEY, KEY) |
| A/CON | 10A Air Conditioning Control Module |
| HEATED MIRROR | 10A ECM (G4FJ), air conditioning control module, driver’s seat/front seat power rearview mirror |
| 2 VACUUM PUMP | 10A [G4KH/G4FJ] Vacuum pump, vacuum switch |
| 3 ECU | 10А PCM/ECM |
| 1 POWER OUTLET | 20A Front cigarette lighter and socket #2 |
| FUEL PUMP | 20A Fuel pump relay |
| HORN | 20A Horn relay, ICM relay block (security alarm horn relay) |
| WIPER | 30A Front wiper relay (low level), front wiper relay (high level) |
| 2 TCU | 15A Transmission range switch, TCM (G4FJ-DCT) |
| 3 ABS | 10A ESC Module |
| 2 POWER OUTLET | 20A Rear socket |
| B/UP LAMP | 10A Transmission range switch, PCM (G4KJ/G4KH-A/T), TCM (G4FJ-DCT), electrochromic mirror, rear combination lamp (IN), left/right |
| 1 SENSOR | 15A Oxygen sensor (up/down) |
| 2 SENSOR | 15A Purge control solenoid valve, canister shut-off valve, RCV control solenoid valve, fuel pump relay, E/R junction block (cooling fan high level relay, fuel pump relay), [G4KJ / G4KH] Intake control solenoid valve, oil control valve (exhaust), [G4FJ] Oil control valve #1 / #2 (intake / exhaust) |
| 1 ECU | 10А PCM/ECM |
| 1 TCU | 10А PCM (G4KJ/G4KH-A/T), TCM (G4FJ-DCT) |
| 1 ECU | 10А PCM/ECM |
| IGN COIL | 20A Ignition Coil #1/#2/#3/#4 |
| INJECTOR | 15A Engine control |
| AMS | 10A Battery Sensor |
If the cigarette lighters do not work, check the items marked POWER OUTLET.