Nissan X-Trail T30: complete fuse diagram with explanation and photo

Owners Nissan X-Trail T30 (2007–2013 model years) sooner or later face the need to check or replace fuses. This may be due to a non-working cigarette lighter, radio failure, lighting problems, or even unstable engine operation. Unfortunately, factory documentation does not always contain comprehensive information, and diagrams on the Internet often contradict each other.

In this article we have collected current fuse block diagrams for X-Trail T30 taking into account the restyled changes, indicated exact denominations and the purpose of each element, and also added practical tips for diagnostics. Particular attention was paid to “problematic” fuses that most often fail - for example, F37 (cigarette lighter) or F19 (engine control unit).

If you are looking for where the fuse is located on Nissan X-Trail T30 for a specific node - use page search (Ctrl+F) with keywords: “cigarette lighter”, “radio”, “headlights”, “windows” or “ECU”. For convenience, we have divided the information into blocks and added visual diagrams.

Where are the fuse boxes located in the Nissan X-Trail T30

B X-Trail T30 fuses and relays are distributed across three main blocks, and their location depends on the year of manufacture and configuration. Below is the latest information for all modifications, including diesel (M9R) and gasoline (MR20DE, QR25DE) versions.

Main installation locations:

• 🔧 Main fuse and relay box — located in the cabin, under the instrument panel on the driver’s side. To gain access, open the door, remove the plastic cover (it is secured with two latches) and move the seat back.
• 🔋 Fuse box in the engine compartment — located next to the battery, under the black plastic cover. On diesel versions it can be moved closer to the windshield.
• ⚡ Additional relay block — in some trim levels it is installed behind the glove compartment (passenger side). To get to it, you will need to remove the glove compartment (4 bolts).

By car after restyling in 2010 The arrangement of the blocks has not changed, but additional fuses have appeared for new options (for example, F42 - for the system Around View Monitor). Also on diesel versions, the block in the engine compartment may have a different numbering order.

Main fuse box diagram (interior)

The main unit in the cabin contains most fusesresponsible for the vehicle's electrical system. Below is the current diagram with decoding for Nissan X-Trail T30 all years of manufacture. Please note: fuse numbers may be duplicated in different blocks - always check the assignment according to the diagram!

Standard numbering of fuses in the passenger compartment:

Number	Denomination (A)	Purpose	Notes
F1	10	Airbag control unit (SRS)	When replacing, be sure to disconnect the battery for 10 minutes
F10	10	Audio system, navigation	Often fails due to a short circuit in the radio
F19	10	Engine control unit (ECU)	When replacing this fuse, errors must be reset by the scanner (for example, ELM327)
F37	20	Cigarette lighter, 12V socket in trunk	The “hottest” fuse - check when the cigarette lighter is not working
F40	15	Power windows (all 4 doors)	When replacing, check the contacts in the doorways for oxidation

The full diagram with photos can be downloaded at link at the end of the article. Please note: on vehicles with xenon headlights there is an additional fuse in the block F25 (10A) for the ignition unit. On versions without xenon this place is empty.

⚠️ Attention: fuse F19 (10A, ECU) responsible for powering the engine control unit. When replacing it do not start the engine immediately - First turn on the ignition for 10 seconds to allow the ECU to initialize. Otherwise, errors are possible P0600 or P0606.

Fuse box in the engine compartment: diagram and features

In the engine compartment X-Trail T30 located second fuse and relay boxresponsible for high-voltage circuits: starter, generator, cooling fans, fuel pump, etc. This block is more vulnerable to moisture and oxidation, so its condition must be checked at every maintenance.

Typical problems with this block:

• 💧 Contact corrosion due to moisture (especially on diesel versions, where the unit is closer to the windshield).
• 🔥 Fuse blown F101 (30A) - responsible for the generator circuit. Symptom of malfunction: battery is discharged, lamp is on CHARGE.
• ⚡ Relay failure K1 (fuel pump relay). Symptoms: the engine does not start, but the starter turns.

Fuse diagram in the engine compartment for Nissan X-Trail T30 (gasoline/diesel):

Number	Denomination (A)	Purpose (gasoline)	Purpose (diesel)
F101	30	Generator	Generator + fuel heating circuit
F103	10	Crankshaft position sensor	Fuel pressure sensor
F107	15	Cooling fan (low speed)	Cooling fan + valve EGR

On diesel versions (M9R) there is an additional fuse in the block F110 (20A) for the system AdBlue (if installed). Also pay attention to the relay K9 — it is responsible for glow plugs. If it malfunctions, the engine does not start well when cold.

Disconnect the battery (negative terminal first)

Clean the block contacts from oxidation (use WD-40 and a brush)

Check fuses F101, F103, F107 for integrity

Check that relay K1 (fuel pump) clicks when the ignition is turned on.

Check the voltage at the generator terminals (should be 13.8–14.5V with the engine running) -->

How to check and replace a fuse: step-by-step instructions

Replacing the fuse with Nissan X-Trail T30 - a simple procedure, but there are several key nuancesthat will help you avoid mistakes. For example, many owners install a fuse of a higher rating, which leads to a wiring fire. We'll tell you how to do everything right.

Step-by-step algorithm:

1. Turn off the power. Always remove the negative terminal from the battery before working with fuses (exception: checking the cigarette lighter fuse F37, where you can do without shutting down).
2. Find the faulty fuse. Use the circuit from the previous sections or a multimeter in dial mode. A blown fuse will have an open circuit (resistance ∞).
3. Remove the fuse. The block contains special tweezers (usually red). If it is not there, use pliers with insulated handles.
4. Install a new fuse. He must be same denomination! For example, if it burned F37 (20A), put 25A This is not possible - this will lead to melting of the wiring.
5. Check the operation of the circuit. Connect the battery and turn on the ignition. If the fuse blows again, look for a short circuit in the wiring.

If the fuse blows repeatedly, the reasons may be as follows:

• 🔌 Short circuit in the wiring (often found in doorways or under seats).
• 🎵 Consumer malfunction (for example, a short circuit in the radio or cigarette lighter).
• 💡 Circuit overload (for example, connecting a powerful inverter to a 12V outlet).

⚠️ Attention: On X-Trail T30 with the system Bose audio system fuse (F10) is connected to the amplifier, which is located under the front passenger seat. When replacing a fuse don't play music at full volume in the first 10 seconds - this may damage the speakers.

Common problems and their solutions

Some fuses in Nissan X-Trail T30 fail more often than others. We have collected TOP 5 typical problems and ways to eliminate them, based on the experience of owners and service manuals.

Frequent faults:

Symptom	Possible fuse	Reason	Solution
Cigarette lighter doesn't work	F37 (20A)	Short circuit in the outlet or connection of a powerful device (for example, a compressor)	Replace fuse, check socket for foreign objects
Power windows don't work	F40 (15A)	Worn window lift mechanism or oxidation of contacts in the doorway	Replace the fuse, lubricate the glass guides, check the wiring in the door corrugation
The radio does not turn on	F10 (10A)	Short circuit in audio system or amplifier	Replace the fuse, disconnect the radio from power for 1 minute, then reconnect
The engine does not start, the starter does not turn	F101 (30A, engine compartment)	Generator malfunction or open circuit	Check the voltage at the battery and generator terminals
Headlights do not work (low/high beam)	F20 (10A) And F21 (10A)	Burnt out lamps or short circuit in the headlight unit	Replace the fuses, check the lamps and contacts in the headlight

Particular attention should be paid fuse F19 (10A, ECU). If it burns out, the engine may run erratically or may not start at all. In this case:

1. Replace the fuse with a new one (10A only!).
2. Turn on the ignition for 10 seconds without starting the engine.
3. Clear errors using a scanner (eg ELM327 or Launch CReader).
4. If errors remain (for example, P0603), check the ECU power supply circuit for an open circuit.

What should I do if fuse F19 (ECU) burns out repeatedly?

If F19 burns out immediately after replacement, the problem may be as follows:

1. Short circuit in the wiring harness going to the ECU (check the insulation under the hood近 of the windshield).

2. Malfunction of the control unit itself (rare, but possible if moisture gets in).

3. Problems with the ignition circuit (for example, a short circuit in the ignition switch).

In this case, it is recommended to contact an auto electrician with diagnostic equipment, since independent repairs can lead to failure of the ECU (the cost of a new one is from 30,000 rubles).

Where to download official fuse diagrams for X-Trail T30

If you need original diagrams from Nissan with the exact location of the fuses for your configuration, there are several trusted sources:

Official and unofficial resources:

• 📄 Repair manual (Service Manual) - can be found on sites like NicoClub or X-Trail Club Russia. Look for the section EL — Electrical.
• 🔧 Wiring diagrams for a specific VIN - on the website Nissan TechInfo (registration required, paid).
• 📥 Owners Archives — scans of diagrams are often posted on forums. For example, on Drive2 in clubs X-Trail T30.
• 📱 Mobile applications — AutoData or Mitchell 1 (there are diagrams for X-Trail from 2007 to 2013).

We have prepared for you archive with fuse diagrams for all modifications X-Trail T30 (gasoline/diesel, before and after restyling). You can download it from the link:

📥 Download fuse diagrams for Nissan X-Trail T30 (PDF, 5 MB)

In the archive you will find:

• Diagram of the main fuse box (interior).
• Block diagram in the engine compartment (indicating differences for diesel versions).
• Relay location and purpose.
• List of fuses for options: xenon, Around View Monitor, heated seats.

💡

Before replacing a fuse, always check its rating according to the diagram! Installing a fuse with a high current (for example, 25A instead of 10A) can lead to melted wiring and even a fire.

Frequently asked questions (FAQ)

Where is the cigarette lighter fuse located on the Nissan X-Trail T30?

The cigarette lighter fuse is F37 (20A) in main fuse box in the passenger compartment (under the instrument panel on the driver's side). Also check the 12V socket in the trunk - it is connected to the same fuse. If F37 burns out frequently, look for a short circuit in the outlet or check the connected devices (such as a compressor or inverter).

Which fuse controls the radio in the X-Trail T30?

The fuse controls the audio system F10 (10A) in the salon block. If the radio does not turn on after replacement, also check:

• Amplifier fuse (if equipped) Bose) - located under the passenger seat.
• Power supply to the radio connector (yellow wire - +12V, black - mass).
• Radio settings (possibly lost after disconnecting the battery).

Why does fuse F19 (ECU) blow and what should I do?

fuse F19 (10A) responsible for powering the engine control unit (ECU). It may burn out for the following reasons:

1. Short circuit in the ECU power supply circuit — check the wires going to the unit (especially in the windshield area).
2. Malfunction of the ECU itself - rare, but possible when exposed to moisture.
3. Ignition problems - for example, a short circuit in the ignition switch.

After replacing the fuse be sure to clear errors using a diagnostic scanner, otherwise the engine may become unstable.

Where is the fuel pump relay located in the X-Trail T30?

Fuel pump relay (K1) located in fuse box in the engine compartment (near the battery). On diesel versions it may be designated as K9. Signs of a relay malfunction:

• The engine does not start (the starter turns, but there is no sign of fuel supply).
• When you turn on the ignition, you cannot hear the characteristic whirring of the pump (on gasoline versions).

To test a relay, swap it with a similar one (for example, a fan relay K3) and try to start the engine.

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

Absolutely not! Installing a fuse with a higher current (for example, 25A instead of 10A) can lead to:

• Melted wiring (especially in doorways or under seats).
• Failure of a consumer (for example, a computer or radio).
• Fire in the cabin (in extreme cases).

If the fuse blows repeatedly, look for cause of short circuit, and do not increase the denomination! Use the multimeter in continuity mode to find an open or short in the circuit.