Owners Nissan Navara Sooner or later you have to deal with replacing fuses - be it a blown cigarette lighter, non-working headlights or a suddenly turned off audio system. However, without an accurate diagram of the blocks and an understanding of their location, the process becomes a guessing game with the risk of short circuiting or damaging the electronics. In this article we will analyze in detail all mounting blocks Navara D40 (2005–2015) and NP300 (2015–present), we will provide unique photographs of real blocks with captions, and also explain how to correctly diagnose and replace fuses without consequences.

Feature Navara — spaced-out fuse diagram: the main unit is located in the cabin, but some of the relays and high-power fuses are hidden under the hood or even behind the glove compartment (depending on the configuration). For example, fuse F30 (30A) is responsible for seat heating, but in some versions it is duplicated by an additional relay in the engine compartment. Such nuances often become the cause of mistakes during independent repairs.

Where are the fuse boxes in the Nissan Navara?

B Nissan Navara provided three main locations for fuses and relays:

  • 🔧 Salon block — under the instrument panel on the driver’s side (behind the protective cover). This is where the fuses for the audio system, lighting, cigarette lighter and electronics are located.
  • 🚗 Engine compartment block — next to the battery (in a plastic box). Contains high current fuses: starter, generator, cooling fans.
  • 🔌 Additional relay block — behind the glove compartment (in some trim levels NP300). Responsible for climate control and heating.

To gain access to the cabin unit, you must:

  1. Open the driver's door and move the seat back.
  2. Press the latch of the block cover (located to the left of the steering column).
  3. Carefully pull the cover towards you - it is secured with plastic clips.
⚠️ Attention: B Navara D40 Until 2010, the fuse box cover can be screwed on with a self-tapping screw. Do not try to rip it off - check for fasteners!

The engine compartment unit opens easier: just unlatch two latches on the plastic box next to the battery. However, it is important here disconnect the negative terminal of the battery before any manipulation - many fuses in this block are connected to high voltage circuits.

📊 What Nissan Navara do you have?
  • D40 (2005–2015)
  • NP300 (2015–present)
  • I don't know the model
  • Other

Decoding the fuses for the cabin unit (D40 and NP300)

Salon block Nissan Navara contains fuses for 5A–30A, responsible for the majority of consumers in the salon. Below is a table with a breakdown for both generations (differences are highlighted).

Designation Rating (A) Purpose (D40) Purpose (NP300)
F2 10 Audio system, navigation Audio system, USB port
F7 10 Cigarette lighter Cigarette lighter, 12V socket in trunk
F10 15 Low beam (left headlight) Low beam (both headlights)
F15 20 Window lifters Power windows, electric mirrors
F25 30 Heated rear window Heated rear window and side mirrors

B NP300 added fuses for F32 (10A) — rear view camera, and F35 (15A) — keyless entry. If these functions stop working in your car, check these particular ones.

⚠️ Attention: fuse F10 in D40 is responsible only for the left low beam headlight. If the right one doesn't work, look F11 (15A). B NP300 the circuit is unified, and both headlights are connected to the same fuse.
How to check a fuse without a tester?

If you don’t have a multimeter at hand, you can visually inspect the fuse in the light: a blown fuse will have a broken metal thread inside. However, this method only works for fuses with transparent housings. Otherwise, temporarily replace it with a known good one of the same rating (for example, from the cigarette lighter circuit).

Engine compartment fuse box: what you need to know

Engine compartment block Nissan Navara contains high power fuses and relaysresponsible for critical systems:

  • ⚡ Starter and generator - fuses F1 (100A) And F2 (80A).
  • 🔥 Cooling fans - relay K9 and fuse F10 (40A).
  • 💡 Main injection relay — K15 (responsible for starting the engine).
  • 🔋 ABS and ESP - fuse F15 (30A) and relay K20.

Particular attention should be paid to the relay K15. If the car does not start, but the starter turns, the problem may be there. Check:

  1. Presence of voltage at the relay contacts (use a tester).
  2. Fuse integrity F5 (10A) in the cabin unit (it is connected to the relay control circuit).
  3. Contact condition - oxidation or corrosion may interrupt the signal.

B NP300 relay added K25responsible for start-stop system (if it is included in the package). Its failure results in the engine stalling when stopped or not starting automatically.

Disconnect the negative terminal of the battery|Check for moisture in the block (a sign is a white coating on the contacts)|Clean the relay contacts with alcohol or a special spray|Check the fuses visually and with a tester|Make sure that all relays are tightly seated in their sockets-->

Common Navara fuse problems and their solutions

Some malfunctions Nissan Navara repeat from year to year. Here are the most common:

  • 🔌 The cigarette lighter fuse has blown (F7) - the culprit is a short circuit in the socket or the connection of powerful devices (for example, a compressor). Solution: Check the socket for foreign objects and replace the fuse with 20A (instead of standard 15A).
  • 💡 Headlights don't work - if it burns out F10 or F11, check the incandescent lamps (their failure can cause a surge in current). B NP300 With LED headlights, the problem often lies in the light control unit.
  • 🚪 Power windows don't work - the fuse is at fault F15 (20A) or relay K5. Also check the contacts on the door buttons - they often oxidize.
  • 🔋 ABS and ESP are disabled - fuse F15 (30A) in the engine compartment or wheel sensors. If the problem remains after replacing the fuse, diagnose the sensors for open circuits.

The problem is especially insidious with fuse F30 (30A)responsible for heating the seats. B D40 it often burns out due to a faulty thermostat, and in NP300 - due to a short circuit in the wiring under the seat. Before replacing the fuse, disconnect the heating connectors and check the resistance of the heating elements with a multimeter (should be within 1–5 Ohm).

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If the fuse blows immediately after replacement, do not install a “bug” (wire) under any circumstances - this may lead to a fire in the wiring. Instead, disconnect the consumers in the circuit and check them one by one for a short circuit.

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

Replacing the fuse in Nissan Navara It seems simple, but there are nuances that will help you avoid mistakes:

  1. Turn off the power — remove the negative terminal from the battery (especially if you are working with the engine compartment).
  2. Find the faulty fuse - use the diagram from this article or the inscription on the block cover.
  3. Remove the fuse - use special tweezers (usually attached to the block cover). If it is not there, carefully pry the fuse out with a screwdriver.
  4. Check the circuit - before installing a new fuse, make sure that the problem has been eliminated (for example, turn off the cigarette lighter if it was the cause of the short circuit).
  5. Install a new fuse - he must be same denomination. Using a fuse with a high current may cause a fire!

If you are replacing a fuse in engine compartment, pay attention to the condition of the contacts. B Navara they often oxidize due to moisture ingress. Clean them up WD-40 or special lubricant for electrical contacts.

⚠️ Attention: B NP300 fuses F1 (100A) And F2 (80A) in the engine compartment they have a non-standard size. Do not try to replace them with improvised means - use only original parts from Nissan (article 28450-4M000 for 100A).
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Never replace a fuse with a more powerful one “temporarily” - this can lead to melting of the wiring and a fire. If a fuse blows repeatedly, look for the cause in the circuit, not in the fuse itself.

Relay in Nissan Navara: purpose and diagnostics

Relay in Navara often become a source of problems, since their malfunction is not always obvious. For example, if the cooling fan does not work, the relay may not be the only culprit. K9, but also the temperature sensor or the fan motor itself. Below is a list of key relays and symptoms of their malfunction:

Designation Purpose Symptoms of a problem
K1 Main relay Car won't start, no power to dashboard
K5 Window lifters The windows don't move, but the fuse F15 intact
K9 Cooling fan The fan does not turn on, the engine overheats
K15 Injection system The engine does not start, but the starter turns
K20 ABS/ESP ABS light is on, system is disabled

To check the relay:

  1. Remove the relay from its socket.
  2. Test the winding with a multimeter - the resistance should be within 50–120 Ohm.
  3. Serve 12V to the winding contacts (for example, from the battery) - a click should be heard.
  4. Check the resistance between the power contacts - when closed it should be close to 0 ohm.

If the relay is faulty, replace it with a new one. B Navara standard relays are used 12V with connector ISO 280, but for critical systems (for example, K15) it's better to take the original (Nissan article number 25230-4M000).

Frequently asked questions about fuses and relays in Navara

In this section we have collected answers to the most frequently asked questions from owners. Nissan Navara:

Why does the cigarette lighter fuse on my 2008 Navara D40 blow every time I plug in the compressor?

B D40 Until 2010, the cigarette lighter circuit was not designed for high loads. Standard fuse F7 (15A) may not be able to withstand the compressor current (especially if its power exceeds 150W). Solutions:

  • Use a compressor with less power.
  • Connect the compressor directly to the battery through the terminals.
  • Install an additional relay and fuse on 20A into the cigarette lighter circuit.
Where is the fuse for the radio in the NP300?

B NP300 The audio system fuse is F2 (10A) in the salon block. If after replacing it the radio does not work, check:

  • The condition of the connectors behind the radio (often oxidize).
  • fuse F32 (10A) — he is responsible for the rear view camera, which can be connected to the head unit.
  • Radio settings (sometimes after turning off the power it requires entering a code).
Can fuses from other cars be used in the Navara?

Yes, but with reservations:

  • Fuses of standard ratings (5A–30A) are suitable for any car if the type matches (for example, ATO/ATC).
  • For high current fuses (80A–100A) in the engine compartment it is better to use original ones - they have a special coating against corrosion.
  • Avoid cheap Chinese fuses - they often have a reduced cross-section of the fuse link.
Why after replacing the fuse F10 low beam not working?

If the fuse is intact, but the headlights do not light, the problem may be:

  • Low beam relay (K3 in the cabin block).
  • Light switch on the steering column (a common problem in D40).
  • Lamps - even if one lamp burns out, this can cause a surge in current and trip the protection.
  • Light control unit (in NP300 with LED headlights).

Check the voltage at the headlight connectors with the low beams on - if there is none, the problem is in the circuit to the lamps.

How to protect fuses from moisture in the engine compartment?

Engine compartment block Navara vulnerable to moisture, especially in rainy weather. To prevent corrosion:

  • Apply a thin layer silicone grease to fuse and relay contacts.
  • Install additional splasher on the block cover (can be cut from a plastic bottle).
  • Clean the contacts periodically (every 6 months) with alcohol or WD-40.
  • Check the integrity of the block cover seal - if it is torn, replace it.