<em>Nissan Leaf</em> fuses: location, diagram and step-by-step replacement

Nissan Leaf is one of the most popular electric vehicles in the world, but even its electronics are not immune to failures. A blown fuse can leave you without climate control, lights, or even the ability to start your car. In this article we will look at where to look for fuse blocks in Leaf first and second generations, how to replace them correctly and what “symptoms” to pay attention to so as not to confuse a blown fuse with other faults.

Electric vehicles, unlike traditional cars, have a unique power architecture. Here fuses protect not only lighting or multimedia circuits, but also high-voltage systems - e.g. charging circuits or inverter. However, many owners Leaf face typical problems: failure of the on-board computer, non-working power windows or sudden shutdown of climate control. Most often, it is the fuse that is to blame, and not complex electronics.

It is important to understand that in Nissan Leaf fuses are divided into three categories: low voltage (12V), high voltage (up to 400V) and service (for diagnostics). The first two types are available to the owner, but it is better not to experiment with the third without experience. In this article, we will focus on those fuses that you can replace yourself - without risking safety or warranty.

Where are the fuse boxes located in Nissan Leaf?

B Leaf first (ZE0, 2010–2017) and second (ZE1, 2018–present ) generations fuses are located in three main locations. Their location depends on the year of manufacture and configuration, but the general layout remains the same:

• 🔧 Main unit in the cabin — under the steering wheel, to the left of the brake pedal. Fuses for most low-voltage circuits are concentrated here: lighting, multimedia, power windows.
• ⚡ High voltage unit — under the hood, next to the battery. Responsible for charging circuits, inverter and recovery systems.
• 🔌 Additional block — in the trunk, behind the trim on the right (for models with the system CHAdeMO). The fuses for fast charging are located here.

B Leaf 2018+ the unit under the hood was moved closer to the windshield, and a separate compartment for system fuses was added in the cabin ProPilot (if installed). To get to the cabin block, you need:

1. Open the driver's door.
2. Remove the plastic cover under the steering wheel (it is secured with two latches).
3. Disconnect the block lock (pull up).

In the high-voltage block, the fuses are hidden under an orange warning cover HIGH VOLTAGE. Never touch them without special gloves and tools - the voltage here reaches 360V, which is deadly.

Decoding fuses: what is responsible for what?

Each fuse in Nissan Leaf marked with an alphanumeric code (for example, F10 or F25). Below is a table with a breakdown for the cabin unit (valid for most trim levels):

Designation	Denomination (A)	Purpose	Symptoms of a problem
F1	10	Battery Management System (BMS)	Does not show battery charge, error P3170
F5	15	Audio system, navigation	Screen not working, no sound, error U1000
F10	20	Window lifters (all 4 doors)	The windows don't move, you can hear the relay clicking
F15	7.5	Parking sensors, rear view camera	Parking sensors do not work, no image when reverse gear is engaged
F20	10	Climate control system	Air conditioning or heating does not turn on, error P0530

The following fuses are relevant for the high-voltage unit (only for qualified technicians!):

• 🔋 F-HV1 (100A) - battery main relay circuit.
• ⚡ F-HV2 (80A) - inverter and recovery system.
• 🔌 F-HV3 (50A) - charger CHAdeMO.

If in your Leaf system installed ProPilot, then an additional fuse will appear in the passenger compartment F30 (10A) - he is responsible for the radar and driver assistance cameras. When it burns out, the icon will light up on the dashboard ⚠️ ProPilot.

⚠️ Attention: If the fuse blows again after replacement, this indicates a short circuit in the circuit. In high voltage systems this can lead to fire! Contact service immediately.

How to check and replace the fuse in Nissan Leaf?

To replace the fuse in the cabin unit you will need:

• 🔧 Tweezers (usually included with the machine).
• 🔍 Flashlight (to see the markings).
• 📋 New fuse same denomination (see table above).

Step by step instructions:

1. Turn off the ignition and remove the key from the lock (at Leaf this is a button POWER — press it without pressing the brake pedal).
2. Remove the fuse box cover (pry it off with a screwdriver or your fingernail).
3. Locate the blown fuse - it can be identified by burnt thread inside or along traces of melting.
4. Use tweezers to remove the faulty fuse and install a new one.
5. Check the operation of the circuit (for example, turn on the power window or climate control).

If the fuse blows immediately after replacement, this means that there is short circuit. In this case:

• 🚨 Do not install a fuse of a larger rating - this may lead to a fire!
• 🔧 Check the wires for damage (especially in doorways).
• 📊 Connect a diagnostic scanner (for example, Leaf Spy Pro) to find errors.

⚠️ Attention: In the high-voltage unit, fuses are replaced only after the system has been completely de-energized! To do this, you need to disconnect the service connector of the battery (the procedure is described in the manual Nissan on pages 8-12).

Typical causes of blown fuses

B Nissan Leaf fuses blow more often than in conventional cars due to the nature of an electric vehicle. Main reasons:

• ⚡ Power surges when charging - especially if you use non-certified stations CHAdeMO or adapters.
• 🌧️ Moisture ingress into the fuse box (for example, after a car wash or rain through leaky door seals).
• 🔌 Charger fault - if the cable is damaged, it may cause a short circuit in the circuit F25.
• 🔋 Battery wear - when the battery is deeply discharged (below 10%), the BMS system may give false signals leading to overloading the fuse F1.

The fuses in models are especially vulnerable Leaf 2011–2013 - they had a factory assembly defect, due to which the contacts in the block oxidized. If your car is from this batch, it is recommended to clean the contacts once a year with a special lubricant (for example, CRC 2-26).

Another common problem is fuse blown F10 (window lifters). This is usually due to:

• 🚪 Freezing of glass in winter (window lifter motor works under increased load).
• 🔧 Wear of guide mechanisms (requires lubrication or replacement).
• 📱 Frequent use of power windows with the ignition off (in Leaf this will drain the 12V battery and may cause a power surge).

Common mistakes when replacing fuses

Many owners Nissan Leaf make the same mistakes, which can lead to serious damage. That's what it's impossible do:

• 🔥 Install a fuse higher denomination (for example, 20A instead of 10A). This could fry the wiring!
• 🧲 Use “bugs” (homemade jumpers made of foil or wire) - in Leaf this is almost guaranteed to lead to a fire.
• 🔧 Change fuses when the ignition is on - even when turned off, some circuits remain energized.
• 🚗 Ignore errors on the dashboard after replacement (for example, P3170 or U1000). They may indicate deeper problems.

Another common mistake is Confuse low-voltage and high-voltage fuses. For example, if the cabin unit burns out F15 (parking sensors), some try to “ring” the circuit with a multimeter without disconnecting the high-voltage battery. It's dangerous! B Leaf even with the ignition off, the capacitors in the inverter can store a charge of up to 300V.

If you are not confident in your skills, it is better to contact the service. For example, replacing a fuse F-HV2 (inverter) will cost 1,500–3,000 rubles, but this is cheaper than repairing burnt electronics.

Where to buy fuses for Nissan Leaf?

Fuses for Leaf can be purchased in three places:

1. Official dealers Nissan - the most reliable, but also the most expensive option. For example, fuse F10 (20A) will cost 300–500 rubles.
2. Online stores (For example, Exist.ru, Autodoc, AliExpress). Prices here are lower (from 50 rubles per piece), but be careful with fakes.
3. Auto stores (For example, AutoSpetsCenter, IXORA). They often sell universal fuse sets (for example, Hella or Bosch).

When purchasing, pay attention to:

• 📏 Size - in Leaf fuses are used Mini Blade (for the cabin unit) and Mega Fuse (for high voltage).
• 🔢 Denomination — it must match the original (see table above).
• 🏷️ Marking - the packaging must indicate For EV (for electric vehicles), if we are talking about high-voltage fuses.

To save money you can buy fuse set (For example, Nissan 28530-3M000), which contains all the necessary denominations for Leaf. This kit costs about 1,500 rubles and is suitable for most models Nissan.

How to distinguish an original fuse from a fake?

Original fuses Nissan have:

- Logo Nissan or Mitsubishi on the body.

- Clear denomination marking (no blurry numbers).

- The plastic is matte, not glossy.

- Contacts are made of brass, not aluminum (checked with a magnet - brass is not magnetic).

When to contact the service?

Not all fuse problems can be solved on your own. Contact the service if:

• 🔥 The fuse blows immediately after replacement (this indicates a short circuit).
• ⚡ There is an error on the dashboard P3170 (problem with the battery management system).
• 🚗 The car does not turn on or does not respond to the button POWER (the main relay fuse may have blown).
• 🔋 Fast charging CHAdeMO does not work, although the cable and station are working.

Repairs in Moscow and St. Petersburg Nissan Leaf The following services are provided:

• 📍 Nissan Service Center in Varshavka (Moscow) - specialize in electric vehicles.
• 📍 EcoCar Service (St. Petersburg) is one of the few who work with high-voltage systems.
• 📍 AutoSpetsCenter (network across Russia) - there is diagnostic equipment for Leaf.

The cost of diagnosing fuses and circuits averages 1,500–3,000 rubles. If the problem is in the high-voltage part, the price can rise to 10,000 rubles due to the need for special safety measures.

⚠️ Attention: If, after replacing the fuse in the cabin unit, several systems stop working at the same time (for example, power windows and climate control), this may indicate a malfunction relay block. In this case, a complete diagnosis of the on-board network is required.

FAQ: Frequently asked questions about fuses Nissan Leaf

Is it possible to drive with a blown fuse? F1 (BMS)?

No! This fuse is responsible for the battery management system. Without it, the car will not display the charge level correctly, and in some cases will not turn on at all. In addition, there is a risk of deep discharge of the battery, which shortens its service life.

Why in Leaf Do 2018 fuses burn less often?

In the second generation Nissan improved circuit protection: added voltage stabilizers in the fuse box and used better quality contacts. In addition, in Leaf 2018+ climate control fuse (F20) has a rating of 25A instead of 10A, which reduces the risk of burnout at peak loads.

What to do if the fuse F5 (audio system) burned out, but the new one doesn’t work either?

In this case, the problem may be:

1. Faulty head unit (radio tape recorder).
2. Short circuit in the speakers (check the rear speakers - they most often suffer from moisture).
3. Damaged wiring harness behind the dashboard.

It is recommended to check the circuit with a multimeter in continuity mode.

Can fuses from other models be used? Nissan?

Yes, but only if they match face value And type. For example, fuses Nissan Qashqai (same year) suitable for interior unit Leaf, since standard Mini Blade. However, for high-voltage circuits, specialized fuses with markings are required EV.

How often should fuses be checked? Leaf?

It is recommended to inspect the fuse box:

• Once every 6 months (or every 10,000 km).
• After heavy rains or washing (for moisture).
• When any electrical problems occur (even if they seem minor).

In a high-voltage unit, checking is only required for errors related to charging or movement.