fixing a blown fuse: 2018 Hyundai Santa FE Fuse Diagram Guide
Don’t worry if your 2018 Hyundai Santa Fe is having electrical problems and you think a blown fuse might be the cause. Fixing this is a pretty simple procedure. A blown fuse can cause problems for your car’s lights and power windows, among other electrical systems. You’ll need to consult the 2018 Hyundai Santa Fe fuses diagram to resolve this problem; it’s usually located on the fuse box cover or in the owner’s manual. You can effectively address and fix a blown fuse in your 2018 Hyundai Santa Fe and restore functionality to the affected electrical components by following these easy steps and consulting the fuse diagram.
2024 Hyundai SANTA FE Review, Specs, Price, and Mileage (Brochure)
Fuse
A vehicle’s electrical system is protected from electrical overload dam-age by fuses.
This vehicle has 2 (or 3) fuse panels, one located in the driver’s side panel bolster, the other in the engine compartment near the battery.
If any of your vehicle’s lights, accessories, or controls do not work, check the appropriate circuit fuse. If a fuse has blown, the element inside the fuse will be melted or broken.
If the electrical system does not work, first check the driver’s side fuse panel. Before replacing a blown fuse, turn the engine and all switches off, and then disconnect the negative battery cable. Always replace a blown fuse with one of the same rating.
If the replacement fuse blows, this indicates an electrical problem. Avoid using the system involved and immediately consult an authorized HYUNDAI dealer.
WARNING
Fuse replacement
- Never replace a fuse with anything but another fuse of the same rating.
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A higher capacity fuse could cause damage and possibly a fire.
- Never install a wire or aluminium foil instead of the proper fuse – even as a temporary repair. It may cause extensive wiring damage and a possible fire.
CAUTION
Do not use a screwdriver or any other metal object to remove fuses because it may cause a short circuit and damage the system.
NOTICE
The actual fuse/relay panel label may differ from the equipped items.
CAUTION
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When replacing an open fuse or relay with a new one, make sure the new fuse or relay fits tightly into the clips. The incomplete fastening fuse or relay may cause the vehicle wiring and electric systems damage and a possible fire.
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Do not remove fuses, relays and terminals fastened with bolts or nuts. The fuses, relays and terminals may be fastened incompletely, and it may cause a possible fire. If fuses, relays and terminals fastened with bolts or nuts are open, consult with an authorized HYUNDAI dealer.
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Do not input any other objects except fuses or relays into fuse/relay terminals such as a driver or wiring. It may cause contact failure and system malfunction.
Instrument Panel Fuse Replacement
- Turn the engine off.
- Turn all other switches OFF.
- Open the fuse panel cover.
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Pull the suspected fuse straight out. Use the removal tool provided in the engine compartment fuse panel.
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Check the removed fuse; replace it if it is blown.
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Push in a new fuse of the same rating, and make sure it fits tightly in the clips.
If it fits loosely, consult an authorized HYUNDAI dealer.
If you do not have a spare, use a fuse of the same rating from a circuit you may not need for operating the vehicle, such as the cigar lighter fuse.
If the headlights or other electrical components do not work and the fuses are OK, check the fuse block in the engine compartment. If a fuse is blown, it must be replaced.
Fuse switch
Always, place the fuse switch to the ON position.
If you move the switch to the OFF position, some items such as the audio system and digital clock must be reset and the smart key may not work properly.
CAUTION
Always place the fuse switch in the ON position while driving the vehicle.
Engine Compartment Panel Fuse Replacement
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Turn the ignition switch and all other switches off.
- Remove the fuse panel cover by pressing the tap and pulling up.
- Check the removed fuse; replace it if it is blown. To remove or insert the fuse, use the fuse puller in the engine compartment fuse panel.
- Push in a new fuse of the same rating, and make sure it fits tightly in the clips. If it fits loosely, consult an authorized HYUNDAI dealer.
CAUTION
After checking the fuse box in the engine compartment, securely install the fuse box cover. If not, electrical failures may occur from water leaking in.
Main fuse
If the main fuse is blown, it must be removed as follows
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Disconnect the negative battery cable.
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Remove the nuts shown in the picture above.
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Replace the fuse with a new one of the same rating.
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Reinstall in the reverse order of removal.
Fuse/Relay Panel Description
Inside the fuse/relay box cover, you can find the fuse/relay label describing fuse/relay name and capacity.
Information
Not all fuse panel descriptions in this manual may be applicable to your vehicle; the information is accurate at the time of printing. When you inspect the fuse box on your vehicle, refer to the fuse box label.
| Description | Fuse rating | Protected Component |
| A/BAG IND | 10A | Instrument Cluster, A/C Control Module |
| A/BAG | 15A | ACU, Passenger Occupant Detection Sensor |
| 5 MODULE | 7.5A | RR_BLOWER, AVM, AC_ INVERTER_ UNIT, Smart Key Control Module, BCM, Rear Seat Warmer LH/RH, Driver/Passenger Seat Warmer Module, |
| 1 MODULE | 7.5A | Sport Mode Switch, Key Solenoid, Console Switch LH/RH, Rear Power Window Switch LH/RH, Data Link Connector |
| FOG LAMP REAR | 10A | – |
| 2 MEMORY | 10A | BCM, Tire Pressure Monitoring Module, Electro Chromic Mirror, Driver/Passenger Door Module, Auto Light & Photo Sensor, A/C Control Module, Instrument Cluster, FRT_DRV_SEAT |
| 2 SMART KEY | 7.5A | Smart Key Control Module, Immobilizer Module |
| 3 MODULE | 10A | BCM, Instrument Cluster, Tire Pressure Monitoring Module, A/C Control Module, Driver/Passenger Door Module, ATM Shift Lever Indicator, Rear Seat Warmer LH/RH, 4WD ECU, Driver/Passenger Seat Warmer Module, MTS Module, Rear(SMART) Parking Assist Sensor LH/RH, A/V & Navigation Head Unit, Rear Parking Assist Sensor (Center)LH/RH, AMP, SAS_ESP, EPB_EXT, Electro Chromic Mirror, BSD |
| 4 SMART KEY | 10A | Start/Stop Button Switch, Immobilizer Module |
| INTERIOR LAMP | 15A | Cargo Lamp, Vanity Lamp LH/RH, Overhead Console Lamp, Center Room Lamp, Personal Lamp LH/RH |
| MULTIMEDIA | 15A | Audio, A/V & Navigation Head Unit, MTS Module, D_ CLOCK |
| MDPS | 7.5A | MDPS Unit |
| HTD STRG | 15A | Steering Wheel Switch |
| FOG LAMP FRONT | 15A | FRT FOG LAMP LH/RH |
| 1 MEMORY | 10A | RF Receiver, Ignition Key Ill. & Door Warning Switch |
| Description | Fuse rating | Protected Component |
| START | 7.5A | W/O IMMO. & Smart Key : ICM Relay Box (Burglar Alarm Relay) With IMMO. or Smart Key : INHIBIT_SW(POSITION_SW) |
| 2 MODULE | 10A | Crash Pad Switch, Multipurpose Check Connector, Head Lamp Leveling Device Actuator LH/RH, Auto Head Lamp Leveling Device Module, Stop Lamp Switch, AFLS_UNIT, F_WATER_SNSR, GLOW_RLY_UNIT_METAL, FPAS_SNSR, DSL_BOX |
| CORNERING LAMP | 10A | – |
| 2 SUNROOF | 20A | Sunroof_MTR |
| S/HEATER RR | 15A | Rear Seat Warmer LH/RH |
| IGN | 20A | E/R Fuse & Relay Box (Fuse – ABS 3, SENSOR 5, TCU) |
| 1 A/CON | 7.5A | E/R Fuse & Relay Box (Blower Relay), A/C Control Module, Cluster Ionizer, DSL_BOX(PTC_RLY) |
| WIPER RR | 15A | Rear Wiper Relay, Rear Wiper Motor, Multifunction Switch, BCM |
| 1 SMART KEY | 25A | Smart Key Control Module |
| S/HEATER FRT | 20A | Driver/Passenger Seat Warmer Module |
| 2 A/CON | 7.5A | A/C Control Module |
| C/LIGHTER | 20A | Front Power Outlet & Cigarette Lighter, Luggage Power Outlet |
| WIPER FRT | 15A | Multifunction Switch, E/R Fuse & Relay Box (Wiper HI Relay, IG2 Relay) |
| A/CON RR | 20A | – |
| P/WDW RH | 25A | Passenger Door Module, Rear Power Window Switch RH |
| REAR HTD | 10A | A/C Control Module |
| BRAKE SWITCH | 7.5A | Smart Key Control Module, Stop Lamp Switch |
| Description | Fuse rating | Protected Component |
| 1 SUNROOF | 20A | SUNROOF_MTR |
| P/WDW LH | 25A | Driver Safety Power Window Module, Driver Door Module, Rear Power Window Switch LH |
| FUEL LID | 15A | Fuel Fillar Door Switch (DOOR_EXT) |
| 3 SMART KEY | 7.5A | Smart Key Control Module |
| STOP LAMP | 15A | Stop Signal Electronic Module |
| P/SEAT (PASS) | 20A | Passenger Seat Manual Switch, Passenger Lumbar Support Switch |
| AMP | 30A | AMP |
| 4 MODULE | 10A | Audio, A/V & Navigation Head Unit, BCM, AMP, MTS Module, Power Outside Mirror Switch, E/R Fuse & Relay Box (Power Outlet Relay), AVM, D_CLOCK, USB_CHARGE |
| DOOR LOCK | 20A | Door Lock/Unlock Relay, Tail Gate Relay, ICM Relay Box (Dead Lock Relay) |
| P/SEAT (DRV) | 30A | Driver IMS Module, Driver Seat Manual Switch, Driver Lumbar Support Switch |
Engine compartment fuse panel
| Relay NO. | Relay Name | Relay Type |
| E30 | POWER OUTLET RELAY | ISO MICRO |
| E31 | START RELAY | ISO MICRO |
| E32 | FRONT DEICER RELAY | ISO MICRO |
| E33 | BLOWER RELAY | ISO MICRO |
| E34 | WIPER LO RELAY | ISO MICRO |
| E36 | ACC RELAY | ISO MICRO |
| E37 | IG1 RELAY | ISO MICRO |
| E38 | IG2 RELAY | ISO MICRO |
| E39 | COOLING FAN RELAY | ISO MINI |
| E40 | WIPER HI RELAY | ISO MICRO |
| E41 | REAR DEFOGGER RELAY | ISO MICRO |
| E42 | HORN RELAY | ISO MICRO |
| Description | Fuse rating | Protected Component | |
| MULTI FUSE | MDPS | 80A | MDPS Unit |
| 2 B+ | 60A | Smart Junction Box (IPS 1 (4CH), IPS 2 (1CH), IPS 5 (1CH), Fuse – SUNROOF 1, P/SEAT PASS, P/SEAT DRV), RR A/CON | |
| BLOWER | 40A | Blower Relay | |
| RR HTD | 40A | Rear Defogger Relay | |
| ABS1 | 40A | ESC Module, Multipurpose Check Connector | |
| ABS2 | 40A | ESC Module | |
| C/FAN | 60A | Cooling Fan Relay | |
| 3 B+ | 60A | Smart Junction Box (Fuse – MODULE 1, SMART KEY 4, SUNROOF 2, SMART KEY 1, Leak Current Autocut Device) | |
| FUSE | 4 B+ | 50A | Smart Junction Box (IPS 3 (4CH), IPS 6 (2CH), Fuse – F/LID, STOP LAMP, DR LOCK, BRAKE SWITCH), FUEL LID |
| ECU | 40A | ECU Box | |
| IG1 | 40A | W/O Smart Key : Ignition Switch, With Smart Key – ACC Relay, IG1 Relay | |
| IG2 | 40A | Start Relay, IG2 Relay, W/O Smart Key : Ignition Switch | |
| TRAILER | 30A | Trailer Power Outlet | |
| 1 B+ | 50A | Smart Junction Box (Fuse – S/HEATER RR, S/HEATER FRT, P/WDW RH, P/WDW LH) | |
| HORN | 15A | Horn Relay | |
| DEICER | 15A | Front Deicer Relay | |
| POWER OUTLET | 25A | Power Outlet Relay | |
| AC INVERTER | 30A | AC Inverter Module |
| Description | Fuse rating | Protected Component | |
| FUSE | POWER TAILGATE | 30A | Power Tail Gate Module |
| IDB | 15A | IDB Module | |
| 4WD | 20A | 4WD ECM | |
| AMS | 10A | Battery Sensor | |
| AMS (WIPER) | 10A | BCM, PCM | |
| WIPER FRT | 25A | Wiper LO Relay, Front Wiper Motor | |
| B/UP LAMP | 10A | A/T – Rear Combination Lamp (IN) LH/RH, Electro Chromic Mirror, Audio, A/V & Navigation Head Unit | |
| ABS3 | 7.5A | ESC Module | |
| 5 SENSOR | 7.5A | PCM | |
| TCU | 15A | A/T : Transaxle Range Switch | |
| F/PUMP | 15A | Fuel Pump Relay | |
| 1 ECU | 15A | PCM | |
| 2 ECU | 10A | IDB Module | |
| 3 SENSOR | 10A | Fuel Pump Relay | |
| IGN COIL | 20A | Condenser, Ignition Coil #1/#2/#3/#4 | |
| 2 SENSOR | 10A | Purge Control Solenoid Valve, Variable Intake Solenoid Valve(G4KJ), Oil Control Valve #1/#2 | |
| 1 SENSOR | 15A | Oxygen sensor(#1/#2/#3/#4), PCM, Oxygen Sensor(Down), E/R Fuse & Relay Box (Cooling Fan Relay) | |
| B/A HORN | 10A | Burg AR alarm Horn Relay |
FAQs
The fuse box of a 2018 Hyundai Santa Fe is often found on the driver’s side under the dashboard or in the engine compartment.
Look inside the plastic shell for a fuse that has melted metal, broken filaments, or a discoloured look.
To safely remove the blown fuse, you might require a fuse puller or a pair of needle-nose pliers.
To protect your car’s electrical system, use a fuse that has the same amp rating as the one you are replacing.
Gently pull the blown fuse straight out of its socket using a fuse puller or a pair of needle-nose pliers.
No, utilizing a fuse with a greater amp rating may cause electrical damage or perhaps cause a fire. Use the appropriate amp rating at all times.
This could point to an underlying electrical problem that has to be professionally diagnosed and fixed.
Refer to the fuse diagram below to identify the particular fuse that controls the infotainment and radio system.
No, using a wire or metal to bypass a fuse can seriously jeopardize your safety and harm the electrical system in your car.
For an illustration of the fuse layout, please refer to the fuse diagram that is supplied below.
For information on the individual fuse that controls the power windows, see the fuse diagram that is supplied below.
If you’re not finding the blown fuse on your own, you might want to consult an experienced car technician.
In general, changing a blown fuse is simple and safe. However, it’s advisable to speak with a specialist if you’re unsure or uneasy.
Useful links
View Full PDF: 2018 Hyundai Santa FE Owner’s Manual| Auto User Guide
2024 Hyundai SANTA FE Review, Specs, Price, and Mileage (Brochure)
Fixing a blown fuse: 2018 Hyundai Santa FE Fuse Diagram Guide