<em>Nissan Sunny</em> fuse diagram: location, decoding and replacement

Nissan Sunny is a legendary car that is still popular today due to its reliability and ease of maintenance. However, even the most proven models have malfunctions, and most often they are associated with electrical issues. The first thing to check if any electrical equipment fails is fuses and relays. But where are they at Sunny? How to properly check and replace them? And most importantly, how not to confuse the blocks with each other?

In this article you will find full fuse diagrams for all generations Nissan Sunny (B13, B14, B15), decoding of each element, as well as practical diagnostic tips. We will look at the typical mistakes that owners make when replacing them and explain why some fuses burn over and over again. If your headlights, power windows or radio stop working, here you will find the answers.

Where are the fuse boxes located in Nissan Sunny

Depending on generation and configuration Sunny may have two or three fuse blocks. Their location is not always obvious, especially when you first open the hood or remove the instrument panel. Here's where to look for them:

• 🔧 Main unit in the cabin — located to the left of the steering column, under the instrument panel. To gain access, you need to snap off the plastic cover (on some models you need to unscrew 1-2 screws).
• 🚗 Additional block under the hood - located next to the battery, usually in a plastic box with a lid. On Sunny B14/B15 can be hidden under the air duct.
• ⚡ Relay block — often combined with the main unit in the cabin, but on some modifications it is placed separately (for example, under the glove compartment).

On Nissan Sunny B13 (1990–1995) the main fuse box is usually located behind the glove compartment — to get to it, you need to remove the glove box. On later models (B14/B15) the manufacturer moved it closer to the steering wheel for convenience. If you can't find the block, check service book or look under the dashboard on the passenger side.

⚠️ Attention: On some export versions Sunny (for example, for the Japanese market), the location of the blocks may vary. If the diagram does not match, check the sticker on the back of the unit cover.

Fuse diagram and decoding Nissan Sunny B13

Model B13 - one of the most common in Russia, so let's start with it. This generation uses two main blocks: interior and engine compartment. Below is the diagram salon unit, which is responsible for most electrical circuits.

Fuse no.	Current (A)	Purpose
1	10	Side lights (left side), license plate light
2	10	Side lamps (right side), instrument panel illumination
7	15	Windshield wipers, windshield washer
10	15	Audio system, cigarette lighter
13	20	Heater fan, heated rear window

Particular attention should be paid to the fuse No. 10 (15A) - he is responsible for cigarette lighter And radio tape recorder. If your audio system stops working, but the cigarette lighter is working, the problem may be in the wiring or the device itself. The fuse also often fails. No. 7 (15A), especially in winter, when the windshield wipers work under heavy load.

B engine compartment Sunny B13 fuses are usually located on generator, cooling fan And headlights. Their numbers and purpose may vary depending on the year of manufacture, so always check the sticker on the unit cover.

Fuse diagram differences Nissan Sunny B14 And B15

In generations B14 (1995–1999) and B15 (1999–2006) the fuse diagram was redesigned. Main changes:

• 🔄 Merging blocks — part of the relay was moved to the cabin unit, simplifying diagnostics.
• ⚡ Added fuses for the ECU - on B15 separate elements have appeared to protect the electronic engine control unit.
• 🔦 Changed numbers - for example, the cigarette lighter fuse can now be numbered 15 or 17 (depending on the configuration).

B Sunny B14 The interior fuse box is located to the left of the steering wheel, under a plastic cover. Here you can find fuses for:

• 🎵 Audio systems (15A)
• 🚗 Central castle (10A)
• 💡 Fog lights (15A)
• 🔋 Cigarette lighter (20A on some modifications)

On B15 added third relay block, which is located under the hood next to the battery. He is responsible for main relay, fuel pump relay And cooling fan relay. If the car does not start or stalls, check this unit first.

⚠️ Attention: On Sunny B15 with engine GA16DE fuse ECU often fails due to a short circuit in the sensor circuit. If the engine is unstable, check this element (usually 10A).

How to test a relay without a multimeter?

If you suspect that a relay (for example, a fan or fuel pump) is not working, you can temporarily replace it with a known good one from another slot (for example, a horn relay). If the device works after replacement, the problem is in the relay.

How to check and replace a fuse: step-by-step instructions

Replacing a fuse is a simple procedure, but even here there are nuances. If you do something wrong, you can burn the electronics or cause a short circuit. Follow this instruction:

1. Turn off the power. Remove the key from the ignition and disconnect the negative terminal of the battery (especially if you are working with the engine compartment).
2. Find the faulty fuse. Visually inspect the elements - a burnt-out one will have broken thread or melted body. If you are not sure, use the multimeter in dial mode.
3. Remove the fuse. Use special tweezers (usually attached to the block cover). Never pull out fuses with your fingers or metal tools!
4. Install a new fuse. He must be same denomination (current strength). Installing a fuse with a large amperage may cause a fire.

If after replacement the fuse blows again - don't install a new one! This means that the circuit has short circuit or overload. In this case you need:

• 🔍 Check the wiring for damage (especially in places of kinks).
• 🛠️ Disconnect consumers connected to this circuit (for example, a radio or additional equipment).
• 📊 Check the device that is connected to the circuit (for example, a fan or pump).

Common fuse problems and how to avoid them

Many owners Nissan Sunny face the same problems related to fuses. Here are the most common cases and ways to solve them:

• 🔥 The cigarette lighter fuse blows when connecting devices.

  Reason: most cigarette lighters Sunny designed for 10–15A, but modern gadgets (for example, compressors or DVRs) consume more. Solution: use splitter with fuse or connect devices directly to the battery via a separate fuse.

• ❄️ The heater fan fuse blows in winter.

  Reason: The fan motor wears out and its shaft begins to jam. This increases the load on the chain. Solution: lubricate the motor bearings or replace it.

• 💡 The headlight or headlight fuses are blown.

  Reason: often guilty oxidized contacts in the lamp sockets or a short circuit in the wiring harness. Solution: Clean the contacts and check the wire insulation.

It is especially dangerous to ignore a persistently blown main relay fuse (usually 10A or 15A) - this may indicate problems with the ECU or ignition circuit. In this case, it is better to contact a specialist, since incorrect diagnosis can lead to failure of the electronic unit.

Where to buy fuses for Nissan Sunny and which ones to choose

Fuses for Sunny They are sold in any auto store, but not all of them are the same in quality. Here's what you need to know when choosing:

• 🔧 Fuse type - in Sunny standard ones are used blade fuses (blade fuse). For the cabin unit usually mini (small), for the engine compartment - standard (large).
• 📌 Denomination — never take fuses with a current reserve! For example, if you need 10A, don't put 15A.
• 🏭 Manufacturer — it’s better to choose proven brands: Bosch, Hella, Valeo. Cheap Chinese fuses may have inaccurate ratings.

The cost of one fuse is from 10 to 50 rubles, depending on the brand. If you need to replace the relay, please note original Nissan (the article number is usually indicated on the relay body) or analogues from Omron.

Where to buy:

• 🛒 Auto stores — AutoDetail, existential, AutoSpetsCenter.
• 🌍 Online — Wildberries, Ozon, AliExpress (but be careful with fakes).
• 🔧 Showdown - if you need rare relays or fuses for older models.

⚠️ Attention: When purchasing a relay, pay attention to rated voltage (must be 12V) and contact type (regular or with resistor). Some relays (for example, for a fan) have a specific design.

Frequently asked questions (FAQ)

Is it possible to install a fuse of a higher rating if it constantly blows?

No! Installing a high amperage fuse may result in overheating of wiring and even fire. If the fuse blows, there is a problem in the circuit (short circuit or overload) that needs to be corrected.

How can you tell if a relay has blown and not a fuse?

A relay usually has no visual signs of failure (unlike a fuse). To check the relay, you can:

1. Listen - when activated, a working relay makes a slight click.
2. Swap with a known working relay (for example, a horn relay).
3. Check with a multimeter - the resistance between pins 85 and 86 should be 50–120 Ohm.

Where to find a fuse diagram for your modification Sunny?

The diagram is usually printed on back of the fuse box cover. If it is missing or has been erased, you can:

• Download the manual for your model (for example, on Nissan-Manuals.com).
• View on specialized forums (SunnyClub.ru, Drive2.ru).
• Contact an authorized dealer (if the car is under warranty).

What should I do if the device does not work after replacing the fuse?

Possible reasons:

• The fuse is not installed correctly (check that it is seated tightly in the socket).
• The relay responsible for this circuit has burned out.
• The problem is in the device itself (for example, the window lift motor has burned out).
• Broken wiring or oxidation of contacts.

Start by checking contact voltage fuse with a multimeter.

Can fuses from other cars be used in Nissan Sunny?

Yes, if they fit tipu (knife) And face value. The fuses are standardized, so elements from Toyota, Honda or any other brands. The main thing is not to skimp on quality.