Nissan Almera Classic (also known as Nissan Almera N16) is a reliable sedan, but even it is not immune to problems with electrical equipment. One of the common causes of problems is relay - small but critical elements responsible for controlling the circuits of the starter, fan, headlights and other systems. If your car suddenly stops starting, the headlights do not turn on, or the heater fails, the relay may be the culprit.

In this article we will look at all relays Nissan Almera Classic, their location in the blocks, signs of malfunction and methods of checking without visiting a service station. You will learn how to distinguish a burnt-out relay from a working one, where to look for wiring diagrams and which relay models are suitable for replacement. And for those who prefer visual instructions, we have prepared a unique table of correspondence between relays and their functions indicating the number in the fuse box.

Where are the relays located in Nissan Almera Classic (N16)

B Almera Classic the relays are distributed over two main blocks:

  • 🔧 Main fuse and relay box — located to the left of the steering column, under the instrument panel. To gain access, pull the lid handle (it is secured with a latch).
  • 🚗 Additional block — located in the engine compartment, next to the battery (on some modifications, under a plastic cover near the windshield).

Relays are concentrated in the main block starter, cooling fan, low/high beam, horn and other key systems. The additional block usually contains a relay fuel pump, fog lights And heated rear window.

📊 Where do your relays most often fail?
  • Inside (main unit)
  • Under the hood (additional unit)
  • There were no problems
  • I don't know where they are

Important: on Almera Classic with engines 1.5 (QG15DE) And 1.8 (QG18DE) Relay location may vary slightly. For example, relay air conditioner on the version with climate control it is in a different slot than on the basic version.

Purpose of the relay in Nissan Almera Classic: decoding by numbers

Each relay in the fuse box is numbered and is responsible for a specific function. Below is a table with a breakdown for Nissan Almera Classic N16 (2006–2012):

Relay number Purpose Symptoms of a problem
K1 Starter relay The starter does not turn or clicks without starting the engine
K2 Cooling Fan Relay (Low Speed) Engine overheating, fan does not turn on at low speeds
K3 Cooling Fan Relay (High Speed) The fan only works at one speed or does not turn on at all
K5 Low beam relay Both low beam headlights do not work (the lamps are working)
K9 Fuel pump relay The engine does not start, the pump cannot be heard when the ignition is turned on

A complete relay diagram for your modification can be found in repair manual (for example, in the manual Nissan Almera N16 Service Manual) or on the sticker on the inside of the fuse box cover. If the sticker is missing, download the diagram from official link (select year and engine).

⚠️ Attention: On restyled versions Almera Classic (after 2010) relay fog lights (K7) And heated rear window (K10) may be swapped. Always check the markings on the relay body!

Signs of a faulty relay: how to recognize the problem

Relay in Nissan Almera Classic They rarely fail suddenly - they are usually preceded by “symptoms” that are easy to miss. Pay attention to the following signals:

  • ⚡ Clicks without operation — for example, when you turn the ignition key, a click is heard, but the starter does not turn. This is a sign burning of contacts inside the relay.
  • 🔥 Relay housing overheating - if the relay is hot when touched, this indicates short circuit or circuit overload.
  • 💡 Unstable operation of equipment - for example, the cooling fan turns on every once in a while or the headlights blink for no reason.
  • 🚫 Complete system failure — if both headlights stop working at once or the fuel pump does not turn on, the culprit with a 90% probability is the relay.

A common cause of relay failure is contact oxidation in the fuse block. This occurs due to moisture ingress (for example, after washing the engine compartment) or prolonged use without cleaning. To check this, remove the relay and inspect its legs for any green deposits or rust.

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If the starter relay clicks but the engine does not start, try tapping it lightly with a screwdriver. If after this the starter works, the relay is definitely faulty and requires replacement.

How to test a relay with a multimeter: step-by-step instructions

Relay test Nissan Almera Classic does not require special skills - just a multimeter (or even a 12V light bulb) and 5 minutes of time. Follow the algorithm:

  1. Remove the relay from the block. Pay attention to the markings of the contacts: they are usually signed as 85, 86, 87, 87a, 30.
  2. Check the winding:
    • Connect the multimeter in mode 200 Ohm to contacts 85 And 86.
    • Resistance must be within 50–120 Ohm. If the device shows OL (break) - the relay is faulty.
  3. Check your contacts:
    • Connect 12V to 85 And 86 (polarity is not important).
    • Multimeter in mode calls check the short circuit between 30 And 87. When voltage is applied, a beep should sound.

If the relay fails at least one of the tests, it must be replaced. For Almera Classic Fits standard size relays ISO 280 with rated current 30–40A. Original articles: 25230-3M600 (starter relay), 25230-AL50A (universal).

Prepare a multimeter or 12V test lamp |

Remove the relay from the block (use plastic tweezers)|

Check winding resistance (pins 85 and 86)|

Make sure that pins 30 and 87 are closed when 12V is applied |

Compare results with reference values-->

Replacing a relay in a Nissan Almera Classic: nuances and errors

Replacing a relay is a simple operation, but there are pitfalls here too. Here are the key points:

  • 🔧 Use only relays with identical parameters. For example, the cooling fan relay (K2/K3) is designed for high currents - if you put the usual one, it will burn out in a few days.
  • 🔄 Check the contacts in the block. Often the problem is not in the relay, but in the oxidized “sockets”. Clean them with alcohol or a special liquid Contact Cleaner.
  • 🔋 Disconnect the battery when replacing the fuel pump or starter relay, this will prevent a short circuit.

Replacement algorithm:

  1. Disable negative battery terminal.
  2. Remove the fuse box cover (press the latch at the bottom).
  3. Find the faulty relay by number (see table above) and remove it by pulling it up.
  4. Install a new relay all the way - it should lock into place with a characteristic click.
  5. Turn on the ignition and check the operation of the system.
⚠️ Attention: On Almera Classic with the system immobilizer Replacing the starter relay or fuel pump may result in engine start blocking. If after replacing the car does not start, follow the procedure retraining the key (described in the manual on p. BE-45).

Frequently asked questions about relays in Nissan Almera Classic

We have collected answers to the most popular questions from owners Almera Classic on the relay topic:

Why does the starter relay click but not turn?

This is a typical sign burning of contacts inside the relay (the so-called "nickel"). When it clicks, the electromagnet is triggered, but the power contacts do not close due to carbon deposits. The solution is to replace the relay or (temporary measure) clean the contacts with fine sandpaper.

Is it possible to install relays from other cars?

Yes, but only if they match:

- Size (standard ISO 280),

- Rated current (not less than 30A for starter/fan relay),

- Type of contacts (4 or 5 contacts).

For example, relays from Renault Megane 2 or Toyota Corolla E12 (article 90987-02004).

If your question is not covered in the article, please study thematic forums (For example, Drive2 or Nissan-Club), where owners share their repair experience Almera Classic.

FAQ: Answers to popular questions

Which relay is responsible for the heater in Nissan Almera Classic?

The relay controls the operation of the heater fan K4 (in the main block) and fuse F10 (10A). If the stove does not turn on, also check speed resistor (located under the glove compartment) - it often burns out.

Is it possible to repair the relay with your own hands?

Theoretically yes - if the problem is oxidized contacts, they can be cleaned. However, in 90% of cases the relay cannot be repaired (especially if the winding is burned out). The cost of a new relay is from 150 rubles, so repairs are impractical.

Why doesn't the car start after replacing the fuel pump relay?

Probable reasons:

  1. Faulty itself fuel pump (check the voltage at its connector).
  2. It worked immobilizer — key retraining is required.
  3. Poor contact in the fuse box (oxidation or broken relay leg).

Where to buy a relay for Nissan Almera Classic?

Original relays can be ordered by article number:

  • 25230-3M600 - starter relay,
  • 25230-AL50A — universal relay (fan, headlights).

Analogues: Bosch (series 0 332 019 150), Hella (4RA 003 598-011). Buy from trusted stores: Exist, Autodoc.

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Relays in Nissan Almera Classic are the weak point of electrical equipment, but replacing them takes no more than 10 minutes. The main thing is to correctly diagnose the problem (check with a multimeter) and use high-quality analogues.