Fuses Guide: 2020 Hyundai Tucson Fuses Box and Fuse Diagrams
Here is the comprehensive guide to help you identify and manage the fuses in your 2020 Hyundai Tucson. Fuses are crucial parts of the electrical system in your car because they shield important circuits from harm from electrical overloads. It’s essential to know how to recognize, inspect, and change fuses if you want to keep your Tucson’s electrical systems operating properly. We will explore the complex world of fuses in this article, giving you useful information on their use, whereabouts, and troubleshooting.
2023 Hyundai Tucson Specs, Price, Features, Milage (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.
Information
Four kinds of fuses are used : blade type For lower amperage rating, cartridge type/Multi fuse/Battery fuse terminal for higher amperage ratings.
WARNING
NEVER replace a fuse with any-thing but another fuse of the same rating.
- A higher capacity fuse could cause damage and possibly cause a fire.
- Do not install a wire or aluminum foil instead of the proper fuse – even as a temporary repair. It may cause extensive wiring damage and possibly a fire.
NOTICE
Do not use a screwdriver or any other metal object to remove fuses because it may cause a short circuit and damage the system.
Instrument Panel Fuse Replacement
- Turn the engine off.
- Turn all other switches OFF.
- Open the fuse panel cover.
- Refer to the label on the inside of the fuse panel cover to locate the suspected fuse location.
- Pull the suspected fuse straight out. Use the removal tool provided in the engine compartment fuses panel.
- Check the removed fuse; replace it if it is blown. Spare fuses are provided in the instrument panel fuse panels (or 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.
In an emergency, if you do not have a spare fuse, use a fuse of the same rating from a circuit you may not need for operating the vehicle, such as the cigarette lighter fuse. If the headlamps or other electrical components do not work and the fuses are OK, check the fuse panel in the engine compartment. If a fuse is blown, it must be replaced with the same rating.
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.
Information
If the fuse switch is OFF, the above message will appear.
NOTICE
- Always place the fuse switch in the ON position while driving the vehicle.
- Do not move the fuse switch repeatedly. The fuse switch may be damaged.
Engine Compartment Panel Fuse Replacement
- Turn the engine off.
- Turn 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 close the fuse box cover inside the engine compartment, until it clicks. If the fuse box is not closed properly, water may leak in side, possibly causing a malfunction with the electrical system.
Main fuse
If the main fuse is blown, it must be removed as follows
- Turn off the engine.
- Disconnect the negative battery cable.
- Remove the fuse panel cover by pressing the tab and pulling it up.
- Remove the nuts shown in the picture above.
- Replace the fuse with a new one of the same rating.
- Reinstall in the reverse order of removal.
Information
If the main fuse is blown, consult an authorized HYUNDAI dealer.
Multi fuse 
If the multi fuse is blown, it must be removed as follows
- Turn off the engine.
- Disconnect the negative battery cable.
- Remove the fuse panel cover by pressing the tab and pulling it up.
- Remove the nuts shown in the picture above.
- Replace the fuse with a new one of the same rating.
- Reinstall in the reverse order of removal.
Information
If the multi fuse is blown, consult an authorized HYUNDAI dealer.
Fuse/Relay Panel Description
Instrument panel fuse panel
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.
Instrument panel fuse panel
| Fuse Name | Fuse rating | Circuit Protected |
| A/CON1 | 7.5A | A/C Control Module, Cluster Ionizer (Auto A/C), E/R Junction Block (Blower Relay) |
| WIPER RR | 15A | ICM Relay Box (Rear Wiper Relay), Rear Wiper Motor |
| MODULE6 | 10A | BCM, Smart Key Control Module |
| WASHER | 15A | Multifunction Switch (Washer Switch) |
| MODULE5 | 7.5A | Crash Pad Switch, Parking Distance Warning Buzzer, BCM, ATM Shift Lever, 4WD ECM, Console Switch, Blind-Spot Collision Warning Unit LH/RH, Lane Keeping Assist Unit, Forward Collision Avoidance Assist Unit |
| AIR BAG | 15A | SRS Control Module, Passenger Occupant Detection Sensor |
| MODULE1 | 10A | BCM, Smart Key Control Module, Audio, A/V & Navigation Head Unit, AMP, Power Outside Mirror Switch, PCB Block (Power Outlet Relay), Wireless Charger, Surround View Monitor, Rear USB Charger |
| START | 10A | ICM Relay Box (Burglar Alarm Relay), Transaxle Range Switch |
| MODULE7 | 7.5A | Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module, Rear Seat Warmer, Surround View Monitor |
| HEATED STEERING | 15A | BCM |
| MODULE8 | 7.5A | Center Facia Switch, Key Solenoid, Forward Collision-Avoidance Assist Unit, Data Link Connector |
| MODULE4 | 7.5A | Multipurpose Check Connector, A/C Control Module, Audio, A/V & Navigation Head Unit, Electro Chromic Mirror, Front Air Ventilation Seat Control Module, ATM Shift Lever ILL., Front Seat Warmer Control Module, Rear Seat Warmer |
| A/BAG IND | 7.5A | Instrument Cluster, Center Facia Switch |
| MODULE3 | 10A | BCM, ATM Shift Lever, Stop Lamp Switch |
| SMART KEY1 | 15A | Smart Key Control Module |
| MODULE9 | 10A | BCM, Security Indicator, Rain Sensor |
| 4WD | 20A | 4WD ECM |
| Fuse Name | Fuse rating | Circuit Protected |
| TAILGATE OPEN | 10A | Tail Gate Open Relay |
| S/HEATER RR | 15A | Rear Seat Warmer |
| MDPS | 7.5A | MDPS Unit |
| SMART KEY3 | 7.5A | Smart Key Control Module, Immobilizer Module |
| CLUSTER | 7.5A | Instrument Cluster (IG1 Power) |
| SMART KEY2 | 10A | Smart Key Control Module, Start/Stop Button Switch, Immobilizer Module |
| MULTIMEDIA | 15A | Audio, A/V & Navigation Head Unit |
| INTERIOR LAMP | 10A | Ignition Key Ill. & Door Warning Switch, Luggage Lamp, Glove Box Lamp, Overhead Console Lamp, Front Vanity Lamp LH/RH, Room Lamp, Rear Personal Lamp LH/RH, Wireless Charger |
| DOOR LOCK | 20A | Door Lock Relay, Door Unlock Relay, ICM Relay Box (Two Turn Unlock Relay) |
| SUNROOF2 | 20A | Panorama Sunroof |
| POWER OUTLET | 20A | [W/O Wireless Charging] Front Power Outlet & Cigarette Lighter, [With Wireless Charging] Cigarette Lighter |
| BRAKE SWITCH | 7.5A | Smart Key Control Module, Stop Lamp Switch |
| MEMORY2 | 10A | Instrument Cluster, A/C Control Module, Electro Chromic Mirror |
| P/SEAT (PASS) | 30A | Passenger Seat Manual Switch |
| S/HEATER FRT | 20A | Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module |
| MODULE2 | 20A | PCB Block (Fuse – ABS3, ECU6, TCU2) |
| SUNROOF1 | 20A | Panorama Sunroof |
| A/CON2 | 7.5A | A/C Control Module |
| HEATED MIRROR | 10A | Driver/Passenger Power Outside Mirror, A/C Control Module, ECM (G4FJ) |
| P/SEAT (DRV) | 30A | Driver Seat Manual Switch |
| Fuse Name | Fuse rating | Circuit Protected |
| SAFETY P/WINDOW DRV | 25A | Driver Safety Power Window Module |
| P/WINDOW RH | 25A | Power Window Main Switch, Passenger Power Window Switch |
| P/WINDOW LH | 25A | Power Window Main Switch |
| AMP | 25A | AMP |
Engine compartment fuse panel 
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 panel in your vehicle, refer to the fuse panel label.
Engine compartment main fuse panel
| Fuse Name | Fuse rating | Circuit Protected | |
| MULTI FUSE-1 | MDPS | 80A | MDPS Unit |
| B+1 | 60A | Smart Junction Block (ARISU-LT IPS 1, IPS 2, IPS 3, IPS 4, Fuse – AMP) | |
| B+2 | 60A | Smart Junction Block (ARISU-LT IPS 5, IPS 6, IPS 7, IPS 8, Fuse – SMART KEY1, SMART KEY2, BRAKE SWITCH, MODULE9) | |
| B+3 | 50A | Smart Junction Block (Fuse – SUNROOF1, SUNROOF2, S/HEATER FRT, S/HEATER RR, SAFETY P/WINDOW DRV),Power Window Relay (Fuse – P/WINDOW LH, P/WINDOW RH) | |
| ABS1 | 40A | ESC Module, Multipurpose Check Connector | |
| ABS2 | 40A | ESC Module, Multipurpose Check Connector | |
| IG1 | 40A | Ignition Switch (W/O Smart Key),PCB Block (PDM (IG1)/PDM (ACC) Relay – With Smart Key) | |
| IG2 | 30A | Start Relay, Ignition Switch (W/O Smart Key), PCB Block (PDM (IG2) Relay – With Smart Key) | |
| MULTI FUSE-2 | PTC HEATER 1 | 50A | PTC 1 Relay |
| PTC HEATER 2 | 50A | PTC 2 Relay | |
| FUSE | B+4 | 50A | Smart Junction Block (Fuse – MODULE8, 4WD, P/SEAT (DRV), P/SEAT (PASS), TAILGATE OPEN, DOOR LOCK,Leak Current Auto cut Device – Fuse Switch, INTERIOR LAMP, MULTIMEDIA, MEMORY2) |
| COOLING FAN1 | 40A | [G4NC/G4KJ] Cooling Fan High Relay | |
| 50A | [G4FJ] Cooling Fan High Relay | ||
| TCU3 | 40A | [G4FJ – 7DCT] TCM | |
| TCU4 | 40A | [G4FJ – 7DCT] TCM | |
| BLOWER | 40A | Blower Relay | |
| POWER TAILGATE | 40A | Power Tail Gate Module | |
| REAR HEATED | 40A | Rear Defogger Relay | |
| Fuse Name | Fuse rating | Circuit Protected |
| WIPER FRT2 | 10A | BCW |
| E-CVVT2 | 20A | [G4KJ] PCM |
| E-CVVT1 | 20A | [G4KJ] PCM |
| WIPER FRT1 | 25A | Ignition Switch (W/O Smart Key), PDM (IG2) Relay (With Smart Key) |
| TCU1 | 15A | [G4FJ] TCM (7DCT), [G4KJ] PCM |
| A/C | 10A | E/R Junction Block (A/C Relay) |
| ECU3 | 20A | PCM (G4NC/G4KJ) / ECM (G4FJ) |
| HORN | 15A | Horn Relay |
| BATTERY MANAGEMENT | 10A | Not Used |
| SENSOR2 | 10A | [G4NC] Oil Control Valve #1/#2, Camshaft Position Sensor #1/#2, Purge Control Solenoid Valve, Variable Intake Solenoid Valve, Canister Close Valve, E/R Junction Block (A/C Relay, Cooling Fan High Relay) [G4FJ] Oil Control Valve #1/#2, Purge Control Solenoid Valve, Canister Close Valve, RCV Control Solenoid Valve, E/R Junction Block (A/C Relay, Cooling Fan High Relay) [G4KJ] Canister Close Valve, Variable Intake Solenoid Valve,E/R Junction Block (A/C Relay, Cooling Fan High Relay) |
| SENSOR1 | 15A | Oxygen Sensor (Up)/(Down) |
| ECU2 | 20A | IGNITION COIL #1/#2/#3/#4, Condenser (G4NC) |
| ECU5 | 15A | PCM (G4NC) / ECM (G4FJ) |
| ECU4 | 15A | PCM (G4NC/G4KJ) / ECM (G4FJ) |
| SENSOR3 | 10A | [G4NC] PCM [G4FJ] ECM [G4KJ] Purge Control Solenoid Valve, Oil Control Valve |
| Fuse Name | Fuse rating | Circuit Protected |
| MODULE3 | 10A | E/R Junction Block (Fuel Pump Relay) |
| DEICER | 15A | E/R Junction Block (Deicer Relay) |
| FUEL PUMP | 20A | E/R Junction Block (Fuel Pump Relay) |
| B/ALARM HORN | 15A | E/R Junction Block (B/Alarm Horn Relay) |
| ABS3 | 10A | ESC Module |
| MODULE2 | 10A | Not Used |
| POWER OUTLER FRT | 20A | Front Power Outlet & Cigarette Lighter (W/O Wireless Charging), Front Power Outlet (With Wireless Charging) |
| ECU6 | 10A | PCM (G4NC/G4KJ) / ECM (G4FJ) |
| TCU2 | 15A | Transaxle Range Switch, TCM (G4FJ – 7DCT) |
| B/UP LAMP | 10A | TCM (G4FJ), Transaxle Range Switch, Electro Chromic Mirror, Rear Combination Lamp (IN) LH/RH |
| POWER OUTLET REAR | 20A | Rear Power Outlet |
| ECU1 | 30A | Engine Control Relay |
[G4NC]: NU 2.0 GDI
[G4KJ]: Theta 2.4 GDI
FAQs
The 2020 Hyundai Tucson’s fuse box is normally found on the driver’s side under the dashboard or in the engine compartment.
The 2020 Hyundai Tucson makes use of a variety of fuses, such as cartridge and blade fuses.
The metal filament inside the fuse will usually shatter when the fuse blows. For verification, you can use a voltmeter or visually examine the fuse.
The electrical component that a fuse in a 2020 Hyundai Tucson protects will determine how many amps the fuse can handle. The ratings 5A, 10A, 15A, 20A, and 30A are frequently seen.
The 2020 Hyundai Tucson headlight fuse, which is normally found in the fuse box under the hood, may be labeled “HEAD” or “HEADLAMP”.
To change a fuse, find the fuse box, locate the blown fuse, remove it using pliers or fuse pullers, and then replace it with a new one that has the same amperage rating.
Usually representing “accessories,” “ACC” can regulate power outlets, the radio, or other accessory parts.
Power window fuses are often located in the interior fuse box and may be identified by the letters “PW” or “P/WDW”.
The individual components involved in the air conditioning system determine the fuse size. To determine the right ratings, consult the fuse box schematic.
Yes, the wipers on the windshield are powered by a fuse. It is usually found in the inner fuse box and may be labeled “WINDSHIELD” or “WIPER”.
There are normally two fuse boxes in a 2020 Hyundai Tucson: one inside the car and one inside in the engine compartment.
“IGN” typically refers to “ignition” and may operate various ignition-related parts of the car.
The fuse for the airbag system is usually found in the inside fuse box and may be labeled “AIRBAG” or “SRS” (Supplemental Restraint System).
A persistently blowing fuse could be a sign of an underlying electrical problem. Examine the fuse’s wiring and related parts, and if required, seek professional advice.
Using a fuse with a greater amp rating is not advised since it may cause fires or other electrical damage. Use a fuse for your car that has the amp rating that is indicated.
Useful Links
View Full PDF: Hyundai Tucson 2020 User Manual| Auto User guide
2023 Hyundai Tucson Specs, Price, Features, Milage (Brochure)