Nissan Almera Classic (also known as Nissan Sunny or Samsung SM3 in some markets) is a popular sedan that is still in use today due to its simplicity of design and availability of spare parts. However, even in such a reliable car, over time, electrical problems arise - the headlights fail, the cooling fan does not work, or the central locking stops responding. In 80% of cases they are to blame blown fuses or faulty relays.

In this article you will find complete relay and fuse layout diagrams for Nissan Almera Classic (body B10 And N16), their decoding by numbers, as well as practical tips on how to quickly find and fix the problem. We will look at where the main blocks are located, how to properly check them with a multimeter, and what to pay attention to when replacing them. No water - only specific information with photographs and tables.

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

B Almera Classic provided two main blocks with fuses and relays:

  • 🔧 Main unit in the cabin — located to the left of the steering column, under the instrument panel. To gain access, you need to open the cover (it is secured with two latches).
  • 🚗 Additional block under the hood — located next to the battery, in a plastic box with a lid. Here are powerful fuses and relays responsible for the starter, generator and injection system.

Also in some configurations may be present third block — it is located behind the glove compartment and is responsible for the audio system, climate control (if installed) and additional equipment. However, in basic versions Almera Classic it usually isn't.

Important: block diagrams may vary depending on the year of manufacture (2006–2012) and sales market (Europe, Asia, Russia). For example, in versions for Korea (Samsung SM3) the cigarette lighter fuse is located in a different location than in European Almera.

📊 What Nissan Almera Classic do you have?
  • B10 (1995–2000)
  • N16 (2000–2006)
  • Smollensky version (2006–2012)
  • I don't know how to determine

Diagram and explanation of the main fuse box (interior)

Main unit in the cabin Nissan Almera Classic contains fuses and relays, responsible for most consumers: lighting, power windows, audio system, dashboard, etc. Below is a typical diagram for models 2006–2012 years (Russian assembly).

№ Ampere Purpose Notes
F1 10A Side light bulbs (left side) Also responsible for the license plate illumination
F7 15A Cigarette lighter Often burns out when using powerful devices (pump, inverter)
F10 10A Engine control unit (ECU) It is forbidden to replace it with a fuse of a higher rating - there is a risk of ECU failure!
F15 20A Heater fan If the heater does not work, check this fuse and relay K9
F20 15A Central locking, alarm If there is a malfunction, also check the relay K5

A complete diagram with photographs can be found in instruction manual (page 8-12) or on the fuse box cover. If you don't have a manual, download it in PDF from this link (choose model Almera Classic or Sunny N16).

⚠️ Attention: If the fuse F10 (10A, ECU) burns out again after replacement, this indicates short circuit in the wiring or malfunction of sensors (for example, oxygen sensor). Do not ignore the problem - this may lead to failure of the engine control unit!

Relay diagram in the cabin unit: purpose and typical faults

In the salon block Nissan Almera Classic installed 9 relays, each of which is responsible for a specific system. Below is their explanation and symptoms of a malfunction:

  • 🔋 K1 - Starter relay: If you hear clicks when you turn the key, but the starter does not turn, check this relay and the contacts on it.
  • 💡 K3 - Low beam relay: Contacts often burn out due to overload (for example, when installing LED lamps).
  • 🚪 K5 - Central locking relay: If the doors do not lock with the key fob, check this relay and fuse F20.
  • 🌀 K9 - Heater fan relay: If the heater is not working, first check this relay, then the fuse F15 and a heater motor.

To check the relay, you can:

  1. Remove it from the socket and shake it - if something rattles inside, it means the contacts have come loose.
  2. Ring with a multimeter in diode test mode (it should beep when voltage is applied to the coil).
  3. Swap places with a known working relay (for example, with K2 - high beam relay).

Remove the relay from the socket|Check visually for melting|Test with a multimeter (coil resistance ~50–120 Ohms)|Swap with a similar relay to check|Clean the socket contacts from oxidation-->

If the relay is OK, but the system does not work, the problem may be wiring or control unit. For example, if the power windows do not work, check:

  • fuse F18 (25A);
  • Relay K7 (if installed);
  • Buttons on doors (contacts often oxidize).

Fuse and relay box under the hood: what's there

Engine compartment block Nissan Almera Classic contains powerful fuses (from 30 to 100A) and relays responsible for:

  • ⚡ Generator and starter;
  • 🔥 Fuel injection system;
  • 💨 Radiator cooling fan;
  • 🔦 Headlights (in some versions).

The most important elements of this block:

Designation Denomination Purpose
F1 (under the hood) 80A Main fuse (connection with battery)
F3 40A Electric cooling fan
K1 (under the hood) — Fuel pump relay
K3 — Cooling fan relay

If cooling fan does not turn on, check:

  1. fuse F3 (40A);
  2. Relay K3;
  3. Temperature sensor (located on the radiator);
  4. The fan itself (supply voltage to it directly from the battery).
⚠️ Attention: If the fuse F1 (80A) burned out, don't replace it without preliminary diagnosis! This may indicate a short circuit in the main power circuit, which can cause a fire. Contact an auto electrician!
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If the cooling fan does not work and the fuses and relays are good, check the temperature sensor connector. Often the contacts oxidize or the ground wire (the black wire going to the body) breaks.

Common electrical problems and how to fix them

Owners Nissan Almera Classic Often encounter the following faults related to relays and fuses:

  • 🔌 Cigarette lighter doesn't work - usually the fuse is to blame F7 (15A). If it burns out repeatedly, check the wiring under the glove compartment (the insulation is often frayed).
  • 🚗 The starter does not turn - check the relay K1 (cabin unit) and fuse F1 (80A) under the hood. Also inspect the contacts on the starter solenoid relay.
  • 💡 Headlights don't come on - if both lamps burn out at the same time, check the relay K3 (low beam) and fuses F2/F3.
  • 🔊 The radio doesn't work - fuse F12 (10A) and check the ground on the audio system housing.

If the problem is not with the fuses or relays, check the ground. B Almera Classic The main points of mass are located:

  • Under the battery (main mass);
  • On the body near the fuse box in the passenger compartment;
  • On the gearbox housing (engine ground).

Oxidized or loose ground contacts can cause unstable operation of electronics, including engine jerking, dim headlights, or sensor malfunctions.

How to check mass with a multimeter?

1. Set the multimeter to resistance measurement mode (200 ohms).

2. Touch the negative terminal of the battery with one probe, and the ground point with the other (for example, on the body under the fuse box).

3. Resistance should be close to 0 ohms. If it shows more than 0.5 Ohm, the contact is bad, you need to clean and tighten the mount.

How to properly replace a relay or fuse: step-by-step instructions

Replacing a fuse or relay in Nissan Almera Classic - a simple procedure, but there are several nuances that will help you avoid mistakes:

  1. Turn off the ignition and remove the negative terminal from the battery (especially if you are working with the unit under the hood).
  2. Use tweezers from the fuse kit (usually in the glove compartment) or plastic pliers to remove the fuse.
  3. Check the denomination - the new fuse must have same ampere, just like the old one. Installing a fuse with a larger rating may result in a fire in the wiring!
  4. Inspect the nest — if the contacts are oxidized, clean them with alcohol or a special contact liquid.

To replace the relay:

  1. Gently pull the relay up (sometimes you may need to wiggle it a little from side to side).
  2. Make sure the new relay has the same marking (number on the case).
  3. Insert the relay until it clicks - it should fit tightly, without play.
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Never use “bugs” (wires instead of fuses) - this is a direct path to a short circuit and fire! If a fuse blows repeatedly, look for the cause rather than increasing its rating.

Where to buy fuses and relays for Nissan Almera Classic

Fuses and relays for Almera Classic - consumables that are easy to find:

  • 🛒 Auto stores (For example, AutoDetail, existential, ATL) - they sell sets of fuses (cost from 50 rubles) and relays (150–300 rubles per piece).
  • 🌍 Online stores:
    • AliExpress — cheap fuse sets (but a long wait);
    • AutoPro, Zapchasti.ru - original relays Nissan or analogues Bosch;
    • Wildberries, Ozon - universal sets.
  • 🔧 Showdown - you can find a used relay from Almera or Sunny at a price of 50–100 rubles.

When purchasing a relay, pay attention to:

  • Number on the body (For example, 28001-JD00A for starter relay);
  • Coil resistance (must match the original);
  • Quality of contacts — cheap relays often have thin lamellas that quickly burn out.

For fuses take nickel plated - they oxidize less. Avoid cheap Chinese kits with thin plates that can melt.

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

🔍 Why does my cigarette lighter fuse (F7, 15A) constantly blow out?

This is a typical problem Almera Classic. Reasons:

  • Using powerful devices (pump, inverter) - the fuse is not designed for a load of more than 180 W.
  • Short circuit in the wiring (the insulation under the glove compartment is often frayed).
  • Malfunction of the cigarette lighter itself (short circuit inside the socket).

Solution: Check the wiring and replace the cigarette lighter. If you need to connect powerful devices, install an additional 20A fuse with separate wiring from the battery.

🚗 The starter clicks, but does not turn. What to check?

Diagnostic sequence:

  1. fuse F1 (80A) under the hood.
  2. Starter relay K1 in the salon block.
  3. Contacts on the starter solenoid relay (often oxidize).
  4. Battery - voltage must be at least 12.4 V.

If everything is in order, but the starter does not work, the solenoid relay or the starter itself may have burned out.

💡 Why don’t both low beam headlights work?

Most likely the problem is:

  • Low beam relay K3;
  • fuse F2/F3 (10A);
  • Light switch (steering column lever).

Also check the lamps - sometimes they burn out at the same time. If the fuse is intact and the relay clicks, but there is no light, check the wiring from the fuse box to the headlights.

🌀 The cooling fan does not turn on. What to do?

Verification algorithm:

  1. fuse F3 (40A) under the hood.
  2. Fan relay K3 (under the hood).
  3. Temperature sensor on the radiator (check it with a multimeter).
  4. The fan itself - apply voltage to it directly from the battery (it should spin up).

If the fan works with a direct connection, but does not turn on from the sensor, replace the sensor or check the wiring to it.

🔑 The central locking does not work with the key fob. What's the matter?

Reasons:

  • fuse F20 (15A);
  • Central locking relay K5;
  • Dead battery in the key fob;
  • Malfunction of the alarm control unit (if installed).

Check the fuse and relay first. If they are working properly, try opening the car with the key and resetting the alarm (the instructions should be in the manual for it).