Nissan Almera Classic (B10): fuse and relay diagrams with explanations

Nissan Almera Classic (also known as Nissan Sunny B10 in some markets) is a reliable sedan, but even it has electrical problems over time. Most often the culprit is the burnt out. fuses or faulty relay, which are responsible for the operation of headlights, power windows, cooling fans and other systems. In this article you will find exact block layouts, decoding of each element, as well as practical advice on diagnostics and replacement.

Feature Almera Classic — two main fuse boxes: one in the cabin (to the left of the steering wheel), the other under the hood. However, their layout may differ depending on the year of manufacture (2006–2012) and configuration. We took these nuances into account and collected up-to-date information that will help you avoid common mistakes during repairs.

Where are the fuse and relay boxes located in Nissan Almera Classic

B Almera Classic B10 There are three zones for placing fuses and relays:

• 🔧 Salon block — located to the left of the steering column, behind the plastic cover. This is where the fuses for the instrument panel, lights, audio system, and other interior systems are located.
• 🚗 Engine compartment block — located next to the battery (driver's side). Responsible for powerful consumers: radiator fan, headlights, starter.
• ⚡ Additional relay block — in some trim levels it is installed under the glove compartment or behind the center console. Includes relay for fuel pump, fog lights and other options.

To gain access to the interior unit, just pry off the cover with a flat screwdriver or a plastic card. The engine compartment unit can be closed with a protective cover with latches - it must be carefully removed so as not to break the latches. In the 2010–2012 models, the engine compartment was sometimes moved closer to the windshield - this is due to changes in the layout to meet new safety standards.

⚠️ Attention: Before working with fuses, be sure to remove the battery terminal (negative). B Almera Classic Some circuits remain energized even when the ignition is turned off, which can lead to a short circuit.

Diagram and decoding of the cabin unit fuses

Salon block in Nissan Almera Classic contains fuses rated from 5A to 30A. Their location is standardized, but may differ slightly depending on the market (for example, in European and Asian versions). Below is the current diagram for most modifications:

Fuse no.	Denomination (A)	Purpose	Symptoms of a problem
F1	10	Side light (left side), license plate light	Dimensions on one side do not light up, license plate illumination does not work
F7	10	Cigarette lighter, 12V socket	The cigarette lighter does not heat up, charging devices does not work
F10	15	Engine control unit (ECU), fuel injectors	The engine stalls and catches fire Check Engine, power loss
F15	20	Power windows (all four windows)	Power windows do not work or only work in one direction
F20	10	Fog lights (front)	PTF does not turn on, the indicator on the panel blinks

To replace the fuse in the passenger compartment, use special plastic tweezers, which are usually attached to the inside of the cover. If you don't have tweezers, you can carefully remove the fuse with your fingers, but do not use excessive force - the plastic holders are fragile.

If the fuse blows again after replacement, this indicates short circuit in the chain. In such cases, it is necessary to check the wiring for damage or oxidation of the contacts. For example, a common problem in Almera Classic — chafing of power window wires in doorways.

Visually inspect the filament (if it is burnt out, a break will be visible)

Test the fuse with a multimeter in circuit test mode

Make sure the new fuse is the same rating

Check for moisture or corrosion in the socket -->

Relay in Nissan Almera Classic: location and functions

Relay in Almera Classic are responsible for controlling powerful consumers such as the starter, cooling fan, headlights and fuel pump. Their failure can lead to complete system failure, even if the fuse remains intact. The table below shows the key relays and their typical “symptoms” of a malfunction:

Designation	Purpose	Signs of breakdown	Location
R1	Starter relay	The starter does not engage or clicks without turning	Engine compartment block
R3	Cooling fan relay	The fan does not turn on, the engine overheats	Engine compartment block
R5	Fuel pump relay	The engine does not start, there is no pressure in the fuel rail	Cabin block or under the glove compartment
R7	Low/high beam relay	Headlights do not work or only shine in one mode	Engine compartment block

You can check the relay by replacing it with a known good one (for example, with a relay of a similar design from a different socket). If the system works after replacement, then the problem was in the relay. You can also test the relay winding with a multimeter - the resistance should be within 50–120 Ohm.

⚠️ Attention: Fuel pump relay (R5) in Almera Classic often fails due to overheating. If the engine suddenly stalls while driving and does not start, first check this relay - its contacts may burn out. Temporary solution: tap the relay (for example, with a screwdriver), sometimes this helps restore contact.

How to distinguish a faulty relay from a working one?

When shaking a faulty relay, a characteristic rattling sound is often heard - this indicates destruction of the internal contacts. There may also be traces of melting or burning on the body. A working relay makes a clear click when voltage is applied (you can check by connecting it directly to the battery).

Typical problems with fuses and relays in Almera Classic

Owners Nissan Almera Classic often encounter recurring electrical faults. Here are the most common ones:

• 🔥 Fuse blown F10 (ECU) - occurs due to voltage surges or sensor malfunctions (for example, an oxygen sensor). If the fuse blows immediately after replacement, check the circuit for a short circuit.
• 💡 Cooling fan relay failure (R3) - leads to engine overheating. This is critical in hot weather! Temporary solution: connect the fan directly to the battery to test.
• 🚪 Problems with the power window fuse (F15) - often caused by moisture getting into the door mechanisms or wear of the guides. Before replacing the fuse, check to see if the glass is jammed.
• 🔋 Corrosion of contacts in the engine compartment — due to the close location to the battery, acid gets onto the terminals. Clean the contacts with alcohol or a special spray.

One of the most insidious problems is false fuse trips F7 (cigarette lighter). Many owners install powerful devices in it (for example, car refrigerators) that exceed the nominal 10A. This leads to the nest melting and even catching fire. Solution: Install an additional outlet with a separate fuse on 20A.

One more nuance: in Almera Classic after 2010 sometimes occurs double relay block under the glove compartment. It is responsible for climate control and seat heating (if provided). If these functions stop working, check for an additional unit - it is often overlooked.

How to properly replace a fuse or relay

Replacing a fuse or relay in Nissan Almera Classic - a simple procedure, but requires care. Follow this algorithm:

1. Disconnect the negative terminal of the battery (required!).
2. Find the faulty element according to the diagram (see previous sections).
3. Remove the fuse with tweezers or the relay by gently shaking it.
4. Install a new element same denomination. Using a fuse with a higher rating may cause a fire!
5. Check the system operation after replacement.

For relays, it is important to observe the polarity (if it is indicated on the body). B Almera Classic Most relays are universal, but some (for example, the starter relay) have a specific design. If you are unsure, take a photo of the pin locations before removing.

When replacing fuses in the engine compartment, be careful: the plastic cover latches are fragile, especially in cold weather. If the cover is cracked, it can be temporarily secured with electrical tape, but it is better to replace it with a new one (the article number of the original cover is 28550-4M000).

Where to buy fuses and relays for Almera Classic

Fuses and relays for Nissan Almera Classic are sold in any car store, but it is important to choose quality spare parts. Here's what we recommend:

• 🛒 Original fuses - are produced by the company Nissan (set article number - 28550-4M00A). They are characterized by increased resistance to vibrations.
• 🔧 Analogues from Bosch or Hella - not inferior in quality, but cheaper. For relays it is better to choose series Bosch 0 332 019 150 or Hella 4RA 003 567-121.
• 🌍 Online stores - on AliExpress or eBay you can find fuse sets with tweezers (search for "Nissan Almera B10 fuse kit").

The cost of fuses starts from 10–20 rubles per piece, relay - from 200–500 rubles. Original parts are more expensive (a starter relay will cost 800–1200 rubles), but they are guaranteed to last longer.

When purchasing, pay attention to denomination And standard size. B Almera Classic standard fuses are used Mini Blade (small) and Regular Blade (regular). Relays are typically sized ISO 280 (standard square case).

Fault diagnosis: when fuses are not to blame

If the problem persists after replacing the fuse or relay, it may not be the problem. Here are typical situations where other elements are to blame:

• 🔌 Oxidized contacts — check the connectors for green deposits (especially in the engine compartment). Clean the contacts with sandpaper or a special spray (for example, CRC Contact Cleaner).
• 📉 Voltage drop - if the fuse is intact, but the device does not work, check the voltage at the terminals with a multimeter. B Almera Classic Often the mass on the body “sags” - it needs to be cleaned.
• 🛠️ Consumer fault - for example, if the cigarette lighter fuse blows, the problem may be a short circuit within the cigarette lighter itself or in a connected device.
• 🔍 ECU problems - if the fuse F10 is operational, but the engine is unstable, the control unit may have failed (diagnosis with a scanner is required).

B Almera Classic there is one trick: if several systems do not work at once (for example, power windows and the cigarette lighter), the problem may be in main fuse, which is located next to the battery. It looks like a large fuse on 80–100A and often oxidizes. Check it out first!

If you cannot find the cause of the problem, use by elimination:

1. Disconnect all consumers in the problematic circuit.
2. Install a new fuse.
3. Connect the loads one at a time until the fuse blows again.

This way you will find the culprit of the short circuit.

FAQ: Frequently asked questions about fuses and relays in Nissan Almera Classic

Can I use a larger fuse if it keeps blowing?

No! Installing an oversized fuse may result in a fire. If the fuse blows, there is a short circuit or overload in the circuit. We need to find and eliminate the cause, and not mask the problem.

How to test a relay with a multimeter?

Set the multimeter to resistance test mode (200 Ohm). Connect the probes to the terminals of the relay coil (contacts 85 And 86). A working relay will show resistance 50–120 Ohm. Then serve 12V to these contacts - a clicking sound should be heard, and the resistance between 30 And 87 contacts should be 0 ohm.

Where is the fuel pump fuse located?

B Almera Classic The fuel pump fuse is usually located in the passenger compartment under number F10 (15A). However, in some versions it can be placed in the engine compartment or combined with a relay (R5). If the engine does not start and you cannot hear the pump running, check both elements.

Why does it blow again after replacing the cigarette lighter fuse?

This is a typical problem when connecting powerful devices (for example, compressors or refrigerators). Solutions:

• Install an additional socket with a separate fuse on 20A.
• Check whether the cigarette lighter itself is short-circuited (disassemble and clean the contacts).
• Use a power strip with overload protection.

How to remove the engine compartment fuse box for cleaning?

Disconnect the battery, then press out the latches on the sides of the unit (usually there are 4 of them). Carefully lift the unit up, disconnecting the connectors. To clean, use alcohol or contact cleaner. Do not use water or aggressive solvents!