2021 Kia Niro Fuses and Fuse Box
Introduction
The electrical system in the 2021 Kia Niro is highly developed and effective, and it is built to power a variety of internal parts and operations. The fuses and fuse box are the central components of this system, and they play a crucial role in protecting the car’s electrical systems against overloads and short circuits. This introduction delves into the world of the fuses and fuse box in the 2021 Kia Niro, examining how important they are to preserving the car’s smooth operation and guaranteeing the safety of both the automobile and its occupants.
Join us as we dissect the complex operation of the fuse box and fuses in the 2021 Kia Niro, illuminating their significance and the seamless integration of cutting-edge technologies to improve your driving experience. This investigation promises insights into the inner workings of a modern vehicle’s electrical system, whether you’re an experienced automotive enthusiast or a curious owner.
FUSES
* Left side: Normal, Right side: Blown
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 melt.
If the electrical system does not work, first check the driver’s side fuse panel.
If the replacement fuse blows, this indicates an electrical problem. Avoid using the system involved and immediately consult an authorized Kia dealer.
Three kinds of fuses are used: blade type for lower amperage rating, cartridge type, and multi fuse for higher amperage ratings.
- WARNING
Fuse Replacement - Never replace a fuse with anything but another fuse of the same rating.
- A higher capacity fuse could cause damage and possibly a fire.
Never install a wire or aluminum foil instead of the proper fuse – even as a temporary repair. It may cause extensive wiring damage and a possible fire. - Do not arbitrarily modify or add-on electric wiring to the vehicle.
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
- When replacing a fuse, change the POWER button to the OFF position and turn off switches of all electrical devices; then remove the battery (-) terminal.
- The actual fuse/relay panel label may differ from equipped items.
WARNING
Electrical Fire
Always ensure replacement fuses and relays are securely fastened when installed. Failure to do so can result in a vehicle fire.
Inner Panel Fuse Replacement
- Turn the engine start/stop button to the OFF position and all other switches off.
- Open the fuse panel cover.
If the switch is located in the “OFF” position, a caution indicator will be displayed in the cluster
CAUTION
When replacing a blown fuse or relay, make sure the new fuse or relay fits tightly into the clips. Failure to tightly install the fuse or relay may cause damage to the wiring and electric systems.
Do not input any other objects except fuses or relays into fuse/relay terminals, such as a screw-driver or wiring. It may cause con-tact failure and system malfunction .Do not plug in screwdrivers or aftermarket wiring into the terminal originally designed for fuses and relays only. The electrical system and wiring of the vehicle interior may be damaged or burned due to contact failure.
If you directly connect the wire on the taillight or replace the bulb which is over the regulated capacity to install trailers etc., the inner junction block can get burned.
- Pull the suspected fuse straight out. Use the removal tool provided on the engine compartment fuse panel cover.
- Check the removed fuse; replace it if it is blown.
Spare fuses are provided 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 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 power outlet fuse.
If the head lamp, turn signal lamp, stop signal lamp, fog lamp, DRL, tail lamp, HMSL 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.
NOTICE
If the headlamp, fog lamp, turn signal lamp, or tail lamp malfunction even without any problem to the lamps, have the vehicle checked by an authorized Kia dealer for assistance.
CAUTION
Fuse Panel Covers
- Set all switches to ON before driving.
If the vehicle is going to be unused for over 1 month, set all switches to OFF to prevent the batteries from draining.
The contact points of the switches may wear out with excessive use. Please refrain from excessive use of the switches (except for long-term parking for over 1 month).
Always set the fuse switch to the ON position before using the vehicle.
If you move the switch to the OFF position, some items such as audio and digital clock must be reset and transmitter (or smart key) may not work properly. When the switch is Off, the caution indicator will be dis-played on the instrument cluster.
Always place the fuse switch in the ON position while driving the vehicle.
If the switch is located in the “OFF” position, a caution indicator will be displayed in the cluster.
Engine Compartment Fuse Replacement
- Turn the engine start/stop button to the OFF position and all other switches off.
- Remove the fuse panel cover by pressing the tab and pulling the cover up. When the blade type fuse is disconnected, remove it by using the clip designed for changing fuses located in the engine compartment fuse box. Upon removal, securely insert reserve fuse of the same rating.
- 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 Kia dealer.
CAUTION
After checking the fuse panel in the engine compartment, securely install the fuse panel cover to protect against any electrical failure which may occur from water contact. Listen for the audible clicking sound to ensure the fuse panel cover is securely fastened.
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 nuts shown in the picture above.
- Replace the fuse with a new one of the same rating.
- Reverse these steps to reinstall the multi fuse.
NOTICE
Do not disassemble nor assemble the multi fuse when it is secured with nuts and bolts. Incorrect or partial assembly torque may cause a fire. Have the vehicle checked by an authorized Kia dealer.
Main fuse (Plug-in Hybrid)
If the multi fuse is blown, it must be removed as follows:
- Turn off the engine.
- Disconnect the negative battery cable.
- Remove the nuts shown in the picture above.
- Replace the fuse with a new one of the same rating.
- Reverse these steps to reinstall the multi fuse.
NOTICE
The electronic system may not function correctly even when the engine compartment and internal fuse box’s individual fuses are not dis-connected. In such case the cause of the problem may be disconnection of the main fuse (BFT type), which is located inside the positive battery terminal (+) cap.
Since the main fuse is designed more intricately than other parts, have the vehicle checked by an authorized Kia dealer.
CAUTION
Visually inspect the battery cap to ensure it is securely closed. If the battery cap is not securely closed, moisture may enter the system and damage the electrical components.
WARNING
Random wiring prohibited when retrofitting equipment
Use of random wiring in the vehicle might cause danger due to failure and damage of the vehicle’s performance.
Using random wires especially when retrofitting AVN or theft alarm system, remote engine control, car phone or radio might damage the vehicle or cause fire.
NOTICE
Remodeling Prohibited
Do not rewire your vehicle in any way as doing so may affect the performance of several safety features in your vehicle. Rewiring your vehicle may also void your warranty and cause you to be responsible for any subsequent vehicle damage which may result.
Fuse/Relay Panel Description
Driver’s Side Fuse Panel
Inside the fuse/relay panel covers, you can find the fuse/relay label describing fuse/relay name and capacity.
NOTICE
Not all fuse panel descriptions in this manual may be applicable to your vehicle. It is accurate at the time of printing. When you inspect the fuse panel in your vehicle, refer to the fuse panel label.
Driver’s Side Fuse Panel
Inside the fuse/relay panel covers, you can find the fuse/relay label describing fuse/relay name and capacity.
NOTICE
Not all fuse panel descriptions in this manual may be applicable to your vehicle. It is accurate at the time of printing. When you inspect the fuse panel in your vehicle, refer to the fuse panel label.
Instrument panel (Driver’s side fuse panel) (Hybrid)
| Fuse Name | Fuse rating | Circuit Protected |
| MODULE 5 | 10A | Electro Chromic Mirror, Audio/Video & Navigation Head Unit, Audio, Shift Lever Indicator, Air Conditioner Control Module, Rear Seat Warmer Control Module, Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module, Head Lamp Leveling Device Actuator LH/RH, Crash Pad Switch, AMP (Amplifier), Keyboard, OBD |
| MODULE 4 | 10A | Lane Keeping Assist Control Module, Crash Pad Switch, Blind-Spot Collision Warning (BCW) Radar Left Handle side/Right Handle side, EPB, VESS |
| INTERIOR LAMP | 10A | Front Vanity Lamp LH/RH, Room Lamp, Overhead Console Lamp, Luggage Lamp, Mood Lamp, Wireless Charger, Rain sensor, Driver warning switch |
| A/BAG | 15A | Passenger Occupant Detection Sensor, ACU |
| IG 1 | 25A | Engine Room Junction Block (Fuse – DCT4, HPCU2, ACTIVE HYDRAULIC BOOSTER3, ECU3) |
| CLUSTER | 10A | Instrument Cluster |
| MODULE 3 | 10A | BCM (Body Control Module), DCT (Dual Clutch Transmission) Shift Lever, Stop Lamp Switch, Driver Door Module, Passenger Door Module |
| MEMORY 2 | 7.5A | Active Air Flap Unit, VESS |
| MODULE 8 | 10A | Active Air Flap Unit, Electric Water Pump (Engine), Engine Room Junction Block (Battery C/Fan Relay), BMS (Battery Management System) Control Module |
| A/BAG IND | 7.5A | Air Conditioner Control Module, Instrument Cluster |
| START | 7.5A | [With Smart Key/With Immobilizer] Inhibitor Switch |
| Fuse Name | Fuse rating | Circuit Protected |
| MODULE 2 | 10A | Engine Room Junction Block (Power Outlet Relay), Wireless Charger, BCM (Body Control Module), USB Charger, Smart Key Control Module, Audio, BMS (Battery Management System) Control Module, Audio/Video & Navigation Head Unit, Driver Power Outside Mirror Switch, AMP (Amplifier), Keyboard |
| PDM 3 | 7.5A | [Without Smart Key] Immobilizer Module [With Smart Key] Smart Key Control Module |
| MEMORY 1 | 10A | Instrument Cluster, Driver IMS (Integrated memory system) Module, BCM (Body Control Module), Air Conditioner Control Module, Auto Light & Photo Sensor, Driver Door Module, Passenger Door Module, ECM (Electric Chromic Mirror) |
| MULTI MEDIA | 15A | Audio, Audio/Video & Navigation Head Unit |
| EWP | 10A | Electric Water Pump (HEV) |
| MDPS | 7.5A | MDPS (Motor Driven Power Steering) Unit |
| TAIL GATE | 10A | Tail Gate Relay, ICM Relay Box (Fuel Filler Door Relay) |
| PDM 1 | 15A | Smart Key Control Module |
| MODULE 7 | 7.5A | Front Seat Warmer Control Module, AC Inverter (110V), Front Air Ventilation Seat Control Module, Rear Seat Warmer Module |
| WIPER (RR) | 15A | Engine Room Junction Block (Wiper RR Relay), Rear Wiper Motor |
| HEATED STEERING | 15A | BCM (Body Control Module) |
| SUNROOF | 20A | Sunroof Motor |
| Fuse Name | Fuse rating | Circuit Protected |
| P/SEAT (PASS) | 25A | Passenger Seat Module |
| P/WINDOW RH | 25A | Power Window (RH) Relay, Passenger Safety Power Window Module |
| P/WINDOW LH | 25A | Power Window (LH) Relay, Driver Safety Power Window Module |
| PDM 2 | 7.5A | [Without Smart Key] Immobilizer Module [With Smart Key] Smart Key Control Module, Start/Stop Button Switch |
| BRAKE SWITCH | 7.5A | Stop Lamp Switch, Smart Key Control Module |
| A/CON | 7.5A | Air Conditioner Control Module, Electronic Air Conditioner Compressor, Engine Room Junction Block (Blower Relay, PTC Heater1 Relay, PTC Heater2 Relay) |
| WASHER | 15A | Multifunction Switch |
| S/HEATER (FRT) | 25A | Front Seat Warmer Control Module, Front Air Ventilation Seat Control Module |
| BATTERY MANAGEMENT | 10A | BMS (Battery Management System) Control Module |
| P/SEAT (DRV) | 30A | [Without IMS] Driver Seat Manual Switch [With IMS] Driver Seat Manual Switch, Driver IMS (Integrated memory system) Module |
| AMP | 30A | AMP (Amplifier) |
| AMS | 10A | Not Used |
| MODULE 1 | 10A | Data Link Connector, Forward Collision-Avoidance Assist (FCA) Module, Hazard Switch, Driver/Passenger Smart Key Outside Handle, Key Interlock, Natural Vacuum Leak Detection, Outside Mirror Folding/Unfolding Relay, Mood Lamp, Outside Mirror Switch |
| Fuse Name | Fuse rating | Circuit Protected |
| DOOR LOCK | 20A | Door Lock/Unlock Relay, ICM Relay Box (Two Turn Unlock Relay) |
| WIPER 2 (FRT) | 10A | Wiper Motor, Engine Room Junction Block (Front Wiper (Low) Relay), ECM (Engine Control Module), BCM (Body Control Module) |
| MODULE 6 | 7.5A | BCM (Body Control Module), Smart Key Control Module |
| S/HEATER (REAR) | 25A | Rear Seat Warmer Control Module |
| HEATED MIRROR | 10A | Driver Power Outside Mirror, Passenger Power Outside Mirror, Air Conditioner Control Module |
| WIPER1 (FRT) | 30A | Wiper Motor, Engine Room Junction Block (Front Wiper (Low) Relay) |
Instrument panel (Driver’s side fuse panel) (Plug-in Hybrid)
| Fuse Name | Fuse rating | Circuit Protected |
| MODULE 5 | 10A | Electro Chromic Mirror, Audio/Video & Navigation Head Unit, Audio, VESS (Virtual Engine Sound System) Unit, Air Conditioner Control Module, Rear Seat Warmer Control Module, Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module, Head Lamp Leveling Device Actuator LH/RH, Crash Pad Switch, AMP (Amplifier), Keyboard, OBD |
| MODULE 4 | 10A | Lane Keeping Assist Control Module, Crash Pad Switch, Blind-Spot Collision Warning (BCW) Radar Left Handle side/Right Handle side, EPB, VESS |
| INTERIOR LAMP | 10A | Front Vanity Lamp LH/RH, Room Lamp, Overhead Console Lamp, Door Warning Switch, Luggage Lamp, Wireless Charger, Mood Lamp, Rain sensor, Driver warning switch |
| A/BAG | 15A | Passenger Occupant Detection Sensor, ACU |
| IG 1 | 25A | Engine Room Junction Block (Fuse – DCT4, HPCU2, ACTIVE HYDRAULIC BOOSTER3) |
| CLUSTER | 10A | Instrument Cluster |
| MODULE 3 | 10A | BCM (Body Control Module), DCT (Dual Clutch Transmission) Shift Lever, Stop Lamp Switch, Driver Door Module, Passenger Door Module |
| IG3 2 | 10A | Fuel Filler Door & Battery Charger Switch, Instument Cluster, Audio, Charger Indicator, Integrated Gateway Power control Module, Audio/Video & Navigation Head Unit |
| MEMORY 2 | 7.5A | Active Air Flap Unit, VESS |
| MODULE 8 | 10A | Active Air Flap Unit, Electric Water Pump (Engine) |
| A/BAG IND | 7.5A | Air Conditioner Control Module, Instrument Cluster |
| Fuse Name | Fuse rating | Circuit Protected |
| START | 7.5A | INHIBITOR SW |
| MODULE 2 | 10A | Engine Room Junction Block (Power Outlet Relay), Wireless Charger, BCM (Body Control Module), USB Charger, Smart Key Control Module, Audio, Audio / Video & Navigation Head Unit, Power Outside Mirror Switch, AMP (Amplifier) |
| PDM3 | 7.5A | Immobilizer Module, Smart Key Control Module |
| MEMORY 1 | 10A | Instrument Cluster, Driver IMS (Integrated memory system) Module, BCM (Body Control Module), Air Conditioner Control Module, Auto Light & Photo Sensor, Driver Door Module, Passenger Door Module, ECM (Electric Chromic Mirror) |
| MULTI MEDIA | 15A | Audio, Audio / Video & Navigation Head Unit |
| IG3 4 | 10A | OBC (On-Board Charger) Unit, TCM (Transmission Control Module), ECM (Engine Control Module), HPCU (Hybrid Power Control Unit) |
| IG3 3 | 10A | Electric Water Pump (PHEV) |
| IG3 5 | 15A | Transmission Range Switch, BMS (Battery Management System) Control Module, Engine Room Junction Block (Battery C/Fan Relay) |
| IG3 1 | 20A | ICM Relay Box (IG3 #1, IG3 #2, IG3 #3 Relay) |
| MDPS | 7.5A | MDPS (Motor Driven Power Steering) Unit |
| TAIL GATE OPEN | 10A | Tail Gate Relay, ICM Relay Box (Fuel Filler Door Relay, Charger Connector Lock/Unlock Relay), Fuel Filler & Battery Charger Switch, Charge Connector Lamp |
| PDM 1 | 15A | Smart Key Control Module |
| Fuse Name | Fuse rating | Circuit Protected |
| MODULE 7 | 7.5A | Front Seat Warmer Control Module, AC Inverter (110V), Front Air Ventilation Seat Control Module, Rear Seat Warmer Module |
| WIPER (RR) | 15A | Engine Room Junction Block (Wiper RR Relay), Rear Wiper Motor |
| HEATED STEERING | 15A | BCM (Body Control Module) |
| SUNROOF | 20A | Sunroof Motor |
| P/WINDOW RH | 25A | Power Window (RH) Relay, Power Window Main Switch, Passenger Power Window Switch, Rear Power Window Switch RH, Passenger Safety Power Window Module |
| P/WINDOW LH | 25A | Power Window (LH) Relay, Power Window Main Switch, Rear Power Window Switch LH, Driver Safety Power Window Module |
| PDM 2 | 7.5A | Immobilizer Module, Smart Key Control Module, Start/Stop Button Switch |
| BRAKE SWITCH | 7.5A | Stop Lamp Switch, Smart Key Control Module |
| OBC | 10A | OBC (On-Board Charger) Unit |
| A/CON | 7.5A | Air Conditioner Control Module, Electronic Air Conditioner Compressor, Engine Room Junction Block (Blower Relay, PTC Heater1 Relay, PTC Heater2 Relay) |
| WASHER | 15A | Multifunction Switch |
| S/HEATER (FRT) | 25A | Front Seat Warmer Control Module, Front Air Ventilation Seat Control Module |
| Fuse Name | Fuse rating | Circuit Protected |
| BATTERY MANAGEMENT | 10A | BMS (Battery Management System) Control Module |
| P/SEAT (DRV) | 30A | Driver Seat Manual Switch, Driver IMS (Integrated memory system) Module |
| AMP | 30A | AMP (Amplifier) |
| AMS | 10A | Battery Sensor |
| MODULE 1 | 10A | Data Link Connector, Forward Collision-Avoidance Assist (FCA) Module, Hazard Switch, Driver/Passenger Door Module, Driver/Passenger Smart Key Outside Handle, Outside Mirror Folding/Unfolding Relay, Mood Lamp, Outside Mirror Switch, Key inter lock |
| DOOR LOCK | 20A | Door Lock/Unlock Relay, ICM Relay Box (Two Turn Unlock Relay) |
| WIPER2 (FRT) | 10A | Wiper Motor, Engine Room Junction Block (Front Wiper (Low) Relay), ECM (Engine Control Module), BCM (Body Control Module) |
| MODULE 6 | 7.5A | BCM (Body Control Module), Smart Key Control Module |
| S/HEATER (REAR) | 25A | Rear Seat Warmer Control Module |
| HEATED MIRROR | 10A | Driver Power Outside Mirror, Passenger Power Outside Mirror, Air Conditioner Control Module |
| WIPER 1 (FRT) | 30A | Wiper Motor, Engine Room Junction Block (Front Wiper (Low) Relay) |
| P/SEAT (PASS) | 25A | Passenger Seat Module |
FAQs
What is the purpose of the fuse box in the 2021 Kia Niro?The 2021 Kia Niro’s fuse box is home to a number of fuses that guard the car’s electrical systems from overloads and short circuits to ensure safe and dependable operation.
The inside cabin or engine compartment is where the fuse box is normally found. Find out where it is exactly and how to get instructions by consulting the owner’s manual for your car.
In the event of a circuit overload or short circuit, fuses serve as protective devices that stop the flow of electrical current, preventing component damage and potential fire threats.
A broken filament that is visible through the fuse’s translucent plastic can frequently be used to identify a blown fuse. Additionally, the owner’s manual for your car might specify which fuses go with which parts, making identification easier.
Yes, changing a blown fuse is usually a simple task. For directions on replacing fuses and information on the appropriate fuse rating, consult your owner’s handbook.
Fuses safeguard the 2021 Kia Niro’s headlights, brake lights, power windows, radio, climate control, and more.
It is essential to use the proper fuse rating because using the wrong rating might result in electrical problems, component damage, or even fires. A blown fuse should always be replaced with one of the same rating.
It is advised to inspect fuses frequently while performing normal maintenance. However, it’s a good idea to check the fuses sooner if you notice electrical problems.
Yes, a lot of cars, like the 2021 Kia Niro, have extra fuses that can be used as replacements.
Yes, a blown fuse is frequently the cause of a variety of electrical problems, including broken systems or components.
Always unplug the battery from the car before handling fuses, and use the right tools to prevent fuse or fuse box damage.
It is advised to use fuses with the same rating as the manufacturer has stated. Electrical issues can result from upgrading fuses without the necessary knowledge.
By staying under the recommended load for each component, you may prevent overloading circuits. Replace worn-out or damaged fuses on a regular basis.
The best course of action is to speak with a professional Kia technician to identify and fix the underlying issue if you frequently experience fuse failures or electrical problems.
A fuse box can experience problems because of corrosion, faulty connections, or other reasons, however this is less usual. The condition of the fuse box can be determined by a professional inspection.
Useful Links
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