Relays and fuses <em>Nissan Tiida</em>: location, diagram and purpose

Nissan Tiida is a popular compact car that is valued for its reliability and unpretentiousness. However, even in such a car, electrical problems periodically arise: the headlights do not work, the heater fan fails, or the central lock stops responding. In 90% of cases they are to blame blown fuses or faulty relays. But where to look for them? How to understand which element has failed? And what to do if after replacement the problem does not go away?

In this article you will find complete fuse and relay block diagrams for Nissan Tiida (C11, 2004–2012 and C13, 2012–2019), a detailed description of each element, as well as practical diagnostic tips. We will look at how to properly check fuses with a multimeter, which relays most often fail, and what to look for when purchasing replacements. Let us separately dwell on the typical mistakes that owners make when working with electrical equipment. Tiida.

Where are the fuse and relay boxes located? Nissan Tiida

B Nissan Tiida There are two main blocks with fuses and relays:

• 🔧 Main unit in the cabin — located to the left of the steering column, behind the plastic cover. Fuses and relays for most car systems (lighting, audio system, power windows, etc.) are located here.
• 🔋 Additional block under the hood — located next to the battery (in models with gasoline engines) or in a special compartment (in diesel versions). Responsible for high-voltage circuits: starter, generator, injection system.

In some trim levels Tiida (for example, with climate control or xenon headlights) there may be a third unit - it is usually hidden behind the glove compartment or under the center console. To get to it, you will need to remove the plastic lining.

Important: on Nissan Tiida C13 (restyling 2012) the location of the blocks remains the same, but The numbers and assignments of some fuses have changed. For example, the cigarette lighter fuse in the pre-Restyle was number 20, and in the Restyle it was number 25. This is often forgotten during diagnostics.

Diagram and assignment of fuses in the cabin block

The interior unit is the most popular when troubleshooting. Below is a table with the assignment of fuses for Nissan Tiida C11 (2004–2012). For C13 Schemes may differ slightly - check the label on the unit cover.

Fuse no.	Denomination (A)	Purpose
1	10	Engine control unit (ECU), immobilizer
5	15	Audio system, navigation, USB port
10	7.5	Right low beam (H7 bulbs)
15	10	Window lifters (all doors)
20	15	Cigarette lighter, 12V socket

Particular attention should be paid to the fuse No. 20 (15A) - it is responsible for the cigarette lighter and often burns out due to the use of powerful devices (for example, car vacuum cleaners or compressors). If the fuse burns out again after replacing, check 12V socket for short circuit or connect devices through a protected splitter.

Another “weak point” is the fuse. No. 10 (7.5A) for low beam. If it burns out for no apparent reason, check incandescent lamps (perhaps one of them is broken) or contacts in the headlight block for oxidation.

Relay in Nissan Tiida: how to find and check

Relay in Tiida are responsible for turning on powerful consumers: starter, cooling fan, headlights, etc. The cabin unit is usually located:

• ⚡ Starter relay — is responsible for supplying power to the solenoid relay. If you hear a click when you turn the key, but the starter does not turn, the problem may be with this relay or with the starter itself.
• 💡 Low/high beam relay — controls the operation of the headlights. If it malfunctions, the light may flicker or not turn on at all.
• 🌀 Cooling fan relay - if the fan does not turn on when overheated, check this relay and temperature sensor.

To check the relay, just remove it from the socket and inspect the contacts for melting or oxidation. You can also use the multimeter in dialing mode:

1. Connect the probes to the terminals 85 And 86 (relay coil). Resistance must be within 50–120 Ohm.
2. Apply voltage 12V to the same conclusions, a characteristic clicking sound (triggering) should be heard.
3. Ring conclusions 30 And 87 - in a closed state, the resistance should be close to 0 ohm.

If the relay does not click or the contacts do not ring, it must be replaced. When purchasing a new relay, pay attention to part number (For example, 25230-3M200 for starter relay in Tiida C11) and manufacturer. Cheap analogues often fail after a few months.

How to distinguish an original relay from a fake?

Genuine Nissan relays have clear markings on the body, smooth seams and contacts without traces of corrosion. Counterfeits are often lighter in weight, with blurred lettering and rough assembly.

Common electrical problems Nissan Tiida and their solutions

Owners Tiida often encounter repeated faults related to fuses and relays. Here are the most common:

⚠️ Attention! If the fuse blows again after replacement, do not install a fuse of a higher rating! This may cause the wiring to catch fire. Instead, look for the cause of the short circuit.

• 🔌 Cigarette lighter doesn't work - check the fuse No. 20 (15A) and the socket for the presence of foreign objects (coins, paper clips). Often the problem lies in oxidized contacts.
• 🚗 The starter does not respond to turning the key - the starter relay or solenoid relay is at fault. Check also weight on the engine and battery condition.
• 💨 Heater fan not working - check the fuse No. 14 (30A) and fan relay. If the fuse is intact, the problem may be speed switch or fan motor.

They especially often complain about problems with central locking. If the door does not open from the remote control, check:

1. fuse No. 28 (10A) in the salon block.
2. Central locking relay (usually located near the fuse box).
3. Power to door actuator (removal of trim may be required).

If the central lock works chaotically (it opens, then it doesn’t), the problem may lie in oxidation of contacts in door wires (especially at the transition point from the door to the counter).

How to properly replace a fuse or relay

Replacing a fuse or relay in Nissan Tiida - a simple procedure, but there are nuances here too. Follow this algorithm:

1. Turn off the ignition and remove the negative terminal from the battery (especially if you are working with blocks under the hood).
2. Using a flathead screwdriver, pry off the fuse box cover. On the inside of the cover there is usually a diagram with the assignment of the elements.
3. To remove the fuse, use special tweezers (usually attached to the block cover). Never pull the fuse out with your fingers as this may damage the contacts.
4. Install a new fuse same denomination. If you don’t have the original one at hand, you can temporarily use a wire bug, but only to get to the store!

When replacing a relay, refer to markings on the body. If the relays are identical in appearance but have a different number, they may control different circuits. For example, in Tiida C13 relay K1 is responsible for the sound signal, and K2 — for heated rear window.

After replacement, check the operation of the system. If the fuse has blown again, do not repeat replacement - look for the cause of the short circuit. Most often the problem lies in:

• 🔌 Wiring — frayed or melted wires.
• 💡 Consumers - for example, in a low beam lamp with a broken spiral.
• 🔋 Oxidized contacts - especially in the connectors of the headlight units or the engine compartment.

Where to buy fuses and relays for Nissan Tiida

Fuses and relays for Tiida can be purchased in several places:

• 🏬 Official Nissan dealers - guaranteed original parts, but the price may be 2-3 times higher.
• 🛒 Auto stores (for example, “AvtoDelo”, “Existential”) - here you can find high-quality analogues from Bosch, Hella or Valeo.
• 🌍 Online stores (AliExpress, eBay, Zapchasti.ru) - cheaper, but there is a high probability of running into a fake. Pay attention to reviews!

When purchasing fuses, pay attention to:

• Denomination - it must exactly match what is indicated in the diagram (for example, 10A, not 15A).
• Type - in Tiida fuses are used mini (small) and maxi (large, for high-current circuits).
• Material — high-quality fuses are made of ceramics or special plastic, and not of cheap polymer.

For relays the situation is more complicated - here it is important to select a part with the same characteristics (operation voltage, switching current). For example, the starter relay from Nissan Almera N16 suitable for Tiida C11, but it’s not a fact that it will last long. It is better to take the original with the catalog number 25230-3M200.

⚠️ Attention! Do not buy fuses and relays “on the market” from random sellers. There is a high risk of running into a marriage, which can lead to wiring fire.

Frequently asked questions (FAQ)

Why in Nissan Tiida Do the cigarette lighter fuses often blow?

Main reasons:

1. Using powerful devices (compressors, refrigerators) without a protected splitter.
2. Short circuit in the 12V socket due to moisture or metal objects.
3. Poor quality fuses that cannot withstand the rated load.

Solution: Replace the fuse with the original one, check the outlet for damage, and use a power strip with overload protection.

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

If the fuse is intact, but the system does not work, check the relay:

• Remove the relay and inspect the contacts for melting.
• Shake the relay - if something rattles inside, it is faulty.
• Check the relay with a multimeter (see instructions above).

If the relay is OK, the problem may be in the wiring or the consumer itself (for example, a fan motor).

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

Absolutely impossible! A fuse is designed to protect a specific circuit. If you put a fuse on 20A instead of 10A, in the event of a short circuit, it will not burn out, but the wiring may melt or the control unit may fail. Look for the cause of the short circuit, and do not increase the nominal value!

Where to find the fuse diagram for your version Tiida?

The diagram is usually marked on the inside of the fuse box cover. If it is missing or has been erased:

• Download the instruction manual for your model on the website Nissan.
• Look on specialized forums (for example, TiidaClub).
• Contact an authorized dealer - they are required to provide a diagram upon request.

What should I do if the problem remains after replacing the fuse?

Possible reasons:

1. The consumer is faulty (for example, a lamp or motor).
2. There is a problem with the wiring (open or short circuit).
3. The control unit (for example, BCM or ECU) has failed.

Solution: check the circuit with a multimeter for an open or short circuit, inspect the connectors for oxidation. If you are not confident in your abilities, contact an auto electrician.