<em>Nissan X-Trail T31</em>cigarette lighter fuse: location, replacement and fault diagnosis

Nissan X-Trail T31 (2007–2013) is one of the most popular crossovers on the Russian market, but even such reliable cars have minor breakdowns. One of the common problems is the failure of the cigarette lighter or 12V socket, which is often associated with a blown fuse. Unlike newer models, where electrical circuits are protected by complex relays, T31 everything is simpler, but not always obvious to the owner.

In this article you will find not only the exact location of the cigarette lighter fuse, but also step-by-step instructions for replacing it, as well as tips for diagnosing more serious problems - from oxidized contacts to short circuits. We will look at why the fuse may burn repeatedly, how to check the circuit with a multimeter, and what to do if replacement does not help. We will pay special attention hidden fuse box under the glove compartment, which many owners are not even aware of.

Where is the cigarette lighter fuse on Nissan X-Trail T31

B X-Trail T31 The cigarette lighter fuse is located in main fuse box, which is located to the left of the steering column, behind the plastic cover. However, there is a nuance here: depending on the year of manufacture and equipment of the car, the cigarette lighter circuit can be protected by different fuses. For example, in cars from 2007–2010. this is usually F37 (15A), and in restyled versions (2011–2013) - F40 (20A).

To accurately determine the fuse you need, pay attention to the diagram that is printed on the inside of the block cover. If the inscriptions are erased or missing, use the table below. Also note that in some modifications (for example, with the option Premium Package) The cigarette lighter and the socket in the trunk can be connected to different fuses.

• 🔧 Main fuse box — to the left of the steering wheel, under the cover with a latch.
• 🔍 Scheme on the cover - look for inscriptions CIGAR or PWR OUTLET.
• ⚡ Additional block — in some versions the fuse is duplicated under the glove compartment (more on this below).

Year of manufacture	Fuse number	Rating (A)	What is he responsible for?
2007–2010	F37	15	Cigarette lighter + 12V socket in the cabin
2011–2013	F40	20	Cigarette lighter + socket in trunk
2009–2013 (with option Premium)	F10 (additional block)	15	Only socket in trunk

⚠️ Attention: If in your X-Trail T31 There is a 12V socket installed in the trunk, its fuse may be located in additional unit under the glove compartment. To access it, unscrew the two screws securing the glove compartment and lower it down.

How to check the cigarette lighter fuse: step-by-step instructions

Before replacing the fuse, you need to check it. To do this, you do not need to have a multimeter - a visual inspection is enough. However, if the fuse appears intact, but the cigarette lighter does not work, a more in-depth diagnosis will be required.

Here's how to properly check the fuse:

1. Turn off the ignition and remove the key from the lock. This will prevent short circuits when manipulating the block.
2. Remove the fuse box coverby pressing the latch at the bottom.
3. Find the right fuse by number (see table above) and remove it with tweezers, which are usually attached to the block cover.
4. Inspect the fuse in the light: if the wire inside is burned out or the body is melted, it must be replaced.

If the fuse is visually intact, but the cigarette lighter does not work, use a multimeter:

• 🔋 Switch the device to circuit test (continuity) mode.
• 🔌 Touch the fuse contacts with the probes. If there is no sound signal, the fuse is faulty.
• 🔍 Check the voltage at the cigarette lighter sockets: when the ignition is on, there should be 12–14 V.

Turn off the ignition and remove the key|Remove the fuse box cover|Find the fuse by number (F37 or F40)|Check visually or with a multimeter|Make sure there is 12V at the cigarette lighter contacts-->

If the fuse is good, but the cigarette lighter does not work, the problem may lie in oxidized socket contacts, broken wiring or faulty relay (in some trim levels). In this case, a more in-depth diagnosis will be required.

Why does the cigarette lighter fuse keep blowing?

If the fuse blows again after replacement, this indicates a more serious problem. In 90% of cases the reason lies in short circuit or circuit overload. Let's look at the main reasons:

• 🔌 Faulty device in the outlet: many owners connect powerful compressors, refrigerators or chargers to the cigarette lighter that exceed the permissible load (180 W for 15A, 240 W for 20A).
• 🔥 Oxidation or shorted contacts: Over time, cigarette lighter sockets oxidize, leading to poor contact and overheating.
• 🔧 Damaged wiring: frayed or exposed wires can short to ground, causing the fuse to instantly blow.
• ⚡ Faulty relay: in some trim levels X-Trail T31 The cigarette lighter circuit is controlled by a relay, which can stick.

To pinpoint the cause, follow these steps:

1. Disconnect all devices from the cigarette lighter.
2. Replace the fuse and turn on the ignition. If it burns out again, the problem is in the wiring or socket.
3. If the fuse is intact, connect the devices one by one to identify the culprit of the overload.

⚠️ Attention: Never install a fuse with denomination higher than standard (eg 25A instead of 15A). This can lead to melted wiring or even a fire!

Phone Charger|Dash Cam|Car Refrigerator|Tire Pump|Other Gadget-->

How to replace the cigarette lighter fuse: step-by-step instructions with photos

Replacing the fuse with Nissan X-Trail T31 takes no more than 5 minutes, but requires care. It is important to use a fuse same denomination, which is the original one. Here are the detailed instructions:

1. Preparation: turn off the ignition and remove the key. Open the driver's door for easier access to the fuse box.

2. Removing the cover: press the latch at the bottom of the fuse box cover (to the left of the steering wheel) and pull it towards you.

3. Finding the fuse: find the fuse F37 (15A) or F40 (20A) according to the diagram on the cover. If there is no diagram, refer to the table above.

4. Extract: take tweezers (it is usually attached to the block cover) and carefully pull out the fuse. If you don't have tweezers, you can pry the fuse off with a small screwdriver.

5. Check and replacement: inspect the fuse. If it burns out, install a new one same denomination. Don't use foil bugs!

6. Checking work: turn on the ignition and check if the cigarette lighter works. If not, look deeper for the reason (see next section).

If after replacement the fuse blows again, do not repeat replacement - this may damage the wiring. In this case, it is necessary to check the circuit for a short circuit.

Diagnosis of the cigarette lighter circuit: what to do if replacement does not help

If the fuse is good, but the cigarette lighter still does not work, the problem may lie in:

• 🔌 Oxidized socket contacts — over time, they become covered with plaque, which impairs conductivity.
• 🔧 Broken wiring — the wires may fray or move away from the contacts.
• ⚡ Faulty relay - in some trim levels X-Trail T31 circuit controlled by relay K3.
• 🔋 Weight problems — poor contact with the body can lead to unstable operation.

For diagnostics you will need a multimeter. Here's how to test the circuit:

1. Checking the socket: turn on the ignition and measure the voltage at the cigarette lighter contacts. The central contact should have 12–14 V, on the side - 0 V (mass). If there is no voltage, the problem is in the wiring or fuse.

2. Weight check: disconnect the negative terminal of the battery and clean the ground contact, which is attached to the body next to the cigarette lighter (usually under the dashboard).

3. Wire continuity: if there is no voltage at the outlet, check the integrity of the wires from the fuse box to the cigarette lighter. Usually this orange wire (+12V) And black (mass).

If you find a break or short circuit, but do not have experience working with auto electricians, it is better to contact a specialist. Wiring problems can lead to more serious problems, including fire.

How to check the cigarette lighter relay?

B Nissan X-Trail T31 The cigarette lighter relay (if it is included in your configuration) is usually located in the main unit and is marked K3. To check it:

1. Remove the relay and install a known good one in its place (for example, from turn signals).

2. If the cigarette lighter works, replace the relay.

3. If not, the problem is in the wiring or socket.

The relay can also be checked with a multimeter in continuity mode: when voltage is applied to the coil (contacts 85 and 86), a click should be heard, and contacts 30 and 87 should close.

Common mistakes when replacing a fuse and how to avoid them

Many owners Nissan X-Trail T31 make mistakes that lead to repeated fuse blowing or even electrical damage. Here are the most common of them:

• 🔥 Using a high rated fuse - this may lead to melting of the wiring or fire.
• 🔧 Replacing a fuse without finding the cause - if the fuse is blown, you first need to find and eliminate the cause (short circuit, overload).
• 🔌 Ignoring oxidized contacts - even a new fuse will heat up if the socket contacts are dirty.
• ⚡ Checking the Live Circuit - This is dangerous and may result in electric shock or short circuit.

To avoid these errors, follow a simple algorithm:

1. Always use a safety lock same denomination, which is the original one.
2. Before replacing, check the circuit for short circuit.
3. Clean the cigarette lighter socket contacts from oxidation (you can use WD-40).
4. If the fuse burns out repeatedly, do not take risks - contact an auto electrician.

⚠️ Attention: If the cigarette lighter sparks or gets hot after replacing the fuse, turn it off immediately and check the connected devices. This could be a sign of overload!

Where to buy a fuse for Nissan X-Trail T31 and which one to choose

Fuses for X-Trail T31 are sold in any auto store or market, but it is important to choose a quality option. Cheap fuses from unknown brands may have an inaccurate rating or poor contact, which will lead to their rapid failure.

Recommended options:

• 🏆 Original Nissan - the most reliable, but also the most expensive (article number 28510-JD00A for the fuse box).
• 🔧 Bosch or Hella - high-quality analogues that are not inferior to the original.
• 💰 Budget options — Efele or SCT, but it is better to use them temporarily.

When purchasing, pay attention to:

• 🔍 Denomination - must match exactly (15A or 20A).
• 🔌 Fuse type - in X-Trail T31 fuses are used Mini Blade (small flat ones).
• 📦 Packaging — it must indicate the manufacturer and quality certificate.

Fuse cost:

Brand	Rating (A)	Price (for 1 piece), rub.	Where to buy
Nissan (original)	15/20	150–200	Official dealers, Exist.ru
Bosch	15/20	50–80	Any auto store, Wildberries
Hella	15/20	60–90	Auto stores, Ozon
Efele	15/20	20–40	Markets, small shops

If you are not sure about the choice, take the blown fuse with you and show it to the seller - this will help avoid mistakes.

FAQ: Frequently asked questions about the cigarette lighter fuse Nissan X-Trail T31

Can I use a 25A fuse instead of a 15A fuse?

No, this is extremely dangerous! The fuse is designed for maximum current, and if the rating is exceeded, the wiring may melt or even catch fire. Always use a safety lock same denomination, which is the original one.

Why does the cigarette lighter work, but the socket in the trunk doesn't?

In some trim levels X-Trail T31 The cigarette lighter and the socket in the trunk are connected to different fuses. Check the fuse F10 in an additional block under the glove compartment. It is also possible that the wiring to the luggage socket is broken.

How to check if a fuse is blown without a multimeter?

You can visually inspect the fuse in the light: if the wire inside is broken or the body is melted, the fuse has burned out. You can also replace it with a known good one with the same rating (for example, from turn signals).

What to do if the fuse is intact, but the cigarette lighter does not heat?

Possible reasons:

• Oxidized contacts in the socket - clean them with sandpaper or WD-40.
• The spiral in the cigarette lighter itself has burnt out - replace it (part no. 25550-4M000).
• Broken wiring - check with a multimeter.

Where is the auxiliary fuse box located under the glove compartment?

To access an additional block:

1. Open the glove compartment and remove all items from it.
2. Unscrew the two screws securing the glove box (bottom).
3. Lower the glove compartment down and you will see a small fuse box underneath.

Usually there is a fuse for the socket in the trunk (F10).