Fuses Guide: 2018 Hyundai Ioniq EV Fuse Diagram and Relay
In the 2018 Hyundai Ioniq EV, the fuse box is the nerve centre of the vehicle’s electrical system. It has a carefully planned layout that makes sure power gets to all the right places and protects important parts. To fully understand the electrical system, the fuse diagram and relay setup are essential tools. They give drivers useful information about how each fuse and relay works. The Ioniq EV’s fuse box is an important part of keeping the car reliable and running well. It protects important systems like lighting, electronics, and power distribution and makes troubleshooting and repair easier. This complete guide gives owners the tools they need to quickly find and fix electrical problems, making owning an Ioniq EV a better experience overall and making sure it stays a model of cutting-edge efficiency and innovation in the world of electric vehicles.
2023 Hyundai IONIQ 6 Specs, Price, Features, Milage (Brochure)
Fuse
A vehicle’s electrical system is protected from electrical overload damage by fuses.
This vehicle has 2 (or 3) fuse panels, one located in the driver’s side panel bolster, the other in the motor 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 vehicle and all switch-es off, and then disconnect the negative battery cable. Always replace a blown fuse with one of the same rat-ing.
If the replacement fuse blows, this indicates an electrical problem. Avoid using the system involved and immediately consult an authorized HYUNDAI dealer.
Information
Three kinds of fuses are used: blade type for lower amperage rating, cartridge type, and multi fuse for higher amperage ratings.
WARNING
NEVER replace a fuse with anything 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 aluminium 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 vehicle 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 motor compartment fuse panel.
- Check the removed fuse; replace it if it is blown. Spare fuses are provided in the instrument panel fuse panels (or in the motor 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.
If the headlamps or other electrical components do not work and the fuses are OK, check the fuse panel in the motor 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.
Motor Compartment Panel Fuse Replacement
- Turn the vehicle 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 motor 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 motor compartment secure-ly close the fuse box cover inside the motor compartment, until it clicks.
If the fuse box is not closed properly, water may leak inside, possibly causing a malfunction with the electrical system.
Multi fuse
If the multi fuse is blown, it must be removed as follows:
- Turn the vehicle off.
- 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 apply 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 |
Protected Component |
|
MODULE5 |
10A |
Electro Chromic Mirror, Audio, Driver IMS Module, Rear Seat Warmer Module, DBL Unit, VESS Unit, Front Seat Warmer Control Module, Head Lamp LH/RH, Front Air Ventilation Seat Control Module |
|
MODULE4 |
10A |
Lane Keeping Assist Unit, Crash Pad Switch, Electric Parking Brake Unit AEB Unit, Blind Spot Detection Radar LH/RH |
|
INTERIOR LAMP |
10A |
Front Vanity Lamp LH/RH, Room Lamp, Overhead Console Lamp, Luggage Lamp, Wireless Charger Unit |
|
A/BAG |
15A |
SRS Control Module, Occupant Detection Sensor |
|
E-SHIFTER1 |
10A |
SBW Switch, Front Console Switch |
|
IG1 |
25A |
PCB Block (Fuse – AHB3, EPCU2) |
|
CLUSTER |
10A |
Instrument Cluster |
|
MODULE3 |
10A |
BCM, Stop Lamp Switch, Driver Door Module, Passenger Door Module |
|
IG3 2 |
10A |
IPS Control Module, Main Battery Charging Switch, Charge Lamp, PTC Heater, A/V & Navigation Head Unit, Instrument Cluster, A/C Control Module, Audio |
|
MEMORY2 |
7.5A |
Active Air Flap |
|
A/BAG IND |
7.5A |
Instrument Cluster |
|
START |
7.5A |
EPCU, Smart Key Control Module |
|
Fuse Name |
Fuse Rating |
Protected Component |
|
MODULE2 |
10A |
E/R Junction Block (Power Outlet Relay), Wireless Charger Unit, SBW Switch, BCM, USB Charging, Smart Key Control Module, Audio, A/V & Navigation Head Unit, Power Outside Mirror Switch, AMP |
|
PDM3 |
7.5A |
Smart Key Control Module |
|
MEMORY1 |
10A |
Auto Light & Photo Sensor, Driver IMS Module, BCM, A/C Control Module, Instrument Cluster, |
|
MULTIMEDIA |
10A |
A/V & Navigation Head Unit, Audio |
|
E-SHIFTER2 |
10A |
SCU |
|
IG3 3 |
10A |
CCM Unit |
|
IG3 1 |
20A |
ICM Relay Box |
|
MDPS |
7.5A |
MDPS Unit |
|
T/GATE |
10A |
Tail Gate Relay, Main Battery Charging Switch, Quick Charging Connector Door Lock/Unlock Actuator |
|
PDM1 |
15A |
Smart Key Control Module |
|
MODULE7 |
7.5A |
Front Seat Warmer Control Module, Front Air Ventilation Seat Control Module, Rear Seat Warmer Module |
|
HTD STRG |
15A |
BCM |
|
Fuse Name |
Fuse Rating |
Protected Component |
|
SUNROOF |
20A |
Sunroof Motor |
|
P/WDW RH |
25A |
Power Window (RH) Relay, Passenger Safety Power Window Switch |
|
P/WDW LH |
25A |
Driver Safety Power Window Module |
|
PDM2 |
7.5A |
Smart Key Control Module, Start/Stop Button Switch |
|
BRAKE SWITCH |
7.5A |
Stop Lamp Switch, Smart Key Control Module |
|
OBC |
10A |
OBC |
|
A/CON |
7.5A |
A/C Control Module |
|
WASHER |
15A |
MultifunctioEt Warmer Control Module, Front Air Ventilation Seat Control Module |
|
S/HEATER FRT |
25A |
Charging Connector Lamp, Quick Charging Connector Lamp |
|
CHARGER |
10A |
CCM Unit, Charging Connector Lamp, ICM Relay Box (Charging Connector Lock/Unlock Relay) |
|
P/SEAT DRV |
30A |
Driver Seat Manual Switch, Driver IMS Module |
|
AMP |
30A |
AMP |
|
Fuse Name |
Fuse Rating |
Protected Component |
|
MODULE1 |
10A |
Data Link Connector, AEB Unit, Driver/Passenger Power Outside Mirror, Driver/Passenger Smart Key Outside Handle, Driver/Passenger Door Module |
|
DOOR LOCK |
20A |
Door Lock/Unlock Relay, ICM Relay Box (Two Turn Unlcok Relay) |
|
WIPER FRT2 |
10A |
Wiper Motor, PCB Block (Front Wiper (Low) Relay) BCM |
|
MODULE6 |
7.5A |
Smart Key Control Module, BCM |
|
S/HEATER RR |
25A |
Rear Seat Warmer Module |
|
HTD MIRR |
10A |
Driver/Passenger Power Outside Mirror, A/C Control Module |
|
RR HTD |
25A |
Rear Defogger (+) (Upper) |
|
WIPER FRT1 |
30A |
Wiper Motor, PCB Block (Front Wiper (Low) Relay), A/C Control Module |
Motor 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.
Motor compartment fuse panel
|
Fuse Name |
Fuse Rating |
Protected Component |
|
MAIN |
180A |
EPCU (Low Voltage DC-DC Converter), E/R Junction Block (Fuse – H/LAMP HI, POWER OUTLET1, AHB2, AHB1) |
|
MDPS |
80A |
MDPS Unit |
|
REAR HEATED1 |
50A |
E/R Junction Block (Rear Defogger Relay) |
|
BLOWER |
40A |
E/R Junction Block (Blower Relay) |
|
B+3 |
60A |
IGPM (Fuse – ARISU (4CH), IPS (1CH/2CH)) |
|
B+4 |
50A |
IGPM (Fuse – P/WINDOW LH/RH, TAILGATE OPEN, SUNROOF, AMP, CHARGER, OBC, S/HEATER FRT, P/SEAT DRV) |
|
C/FAN |
60A |
E/R Junction Block (Cooling Fan Relay) |
|
B+2 |
60A |
IGPM (Fuse – S/HEATER RR, ARISU (4CH), IPS (2CH)) |
|
IG1 |
40A |
E/R Junction Block (Button Start #1 (ACC) Relay, Button Start #2 (IG1) Relay) |
|
IG2 |
40A |
E/R Junction Block (Button Start #2 (IG2) Relay) |
|
E-SHIFTER |
40A |
E/R Junction Block (Fuse – E-SHIFTER2, E-SHIFTER Relay) |
|
B+5 |
60A |
PCB Block (Fuse – EPCU1, HORN, B/A HORN, BMS, Main Relay) |
|
Fuse Name |
Fuse Rating |
Protected Component |
|
B/UP LAMP |
10A |
E/R Junction Block (B/UP Lamp Relay), Multipurpose Check Connector |
|
POWER OUTLET1 |
40A |
E/R Junction Block (Power Outlet Relay) |
|
H/LAMP HI |
10A |
E/R Junction Block (Head Lamp (HI) Relay) |
|
AHB1 |
30A |
IBAU, Multipurpose Check Connector |
|
AHB2 |
40A |
IBAU, Multipurpose Check Connector |
|
EPB1 |
30A |
Electric Parking Brake Unit |
|
EPB2 |
30A |
Electric Parking Brake Unit |
|
B+1 |
40A |
IGPM (Fuse – BRAKE SWITCH, MODULE1, DOOR LOCK, PDM1, PDM2, Fuse Switch, Leak Current Auto cut Device) |
|
BATT C/FAN |
25A |
E/R Junction Block (Battery C/Fan Relay) |
Motor compartment fuse panel (Battery terminal cover)
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.
NOTICE
After checking the fuse panel in the motor compartment, securely install the cover. If it is not securely latched, electrical failure may occur from water contact.
FAQs
The 2018 Hyundai Ioniq EV’s fuse box is normally found on the driver’s side of the engine compartment.
Fuses are used to guard against overcurrent damage to electrical circuits. In the event of a power surge, they break the circuit as a safety precaution.
The metal strip inside the fuse can be visually inspected to determine whether it is damaged or complete. The fuse gets blown if it is broken.
Replace the blown fuse with one that has the same amperage rating.
Standard-sized blade fuses are normally used in the 2018 Hyundai Ioniq EV.
Although fuse colors can differ by manufacturer, they typically indicate the amperage rating. To get exact information, you must consult the owner’s handbook.
Depending on the model, you might need to unscrew or unlatch the cover in order to access the fuse box in the Hyundai Ioniq EV.
Replacing a fuse with a higher amp rating is not advised because doing so may result in electrical damage or fire hazards.
A persistently blowing fuse could be a sign of an underlying electrical problem. Have a skilled technician inspect the car.
A fuse box diagram is often located in your Hyundai Ioniq EV owner’s manual.
To guarantee compatibility and safety, OEM (Original Equipment Manufacturer) fuses are advised.
Grip the fuse loosely and carefully pull it out of its socket using a fuse puller tool or a pair of needle-nose pliers.
A spare fuse box or a compartment inside the car may be included with some models. To find out more, consult your owner’s handbook.
It is preferable to get advice from a trained Hyundai technician if you are unable to identify the source of an electrical problem. They have the knowledge and equipment necessary to precisely diagnose and fix the issue.
Useful links
View Full PDF: 2018 Hyundai Ioniq EV Owner’s Manual| Auto User
Guide 2023 Hyundai IONIQ 6 Specs, Price, Features, Milage (Brochure)