Owners Nissan X-Trail T31 (2007–2013 model years) sooner or later face the need to check or replace fuses. A car's electrical circuits are protected by dozens of fusible links, and without an exact circuit, finding the right one is like looking for a needle in a haystack. In this article we have collected current fuse block diagrams for X-Trail T31 with a detailed explanation of each element, indicated their location in the cabin and under the hood, and also gave practical advice on diagnostics and replacement.
Feature T31 — availability two main fuse blocks: one is located in the cabin (to the left of the steering column), the other is in the engine compartment (next to the battery). In addition, depending on the configuration and year of manufacture, the diagram may differ slightly. We took these nuances into account and provided data for the most common versions, including cars with diesel engines M9R and gasoline MR20DE/QR25DE.
If you notice that some device has stopped working (for example, heated seats, cigarette lighter or fog lights), the first step is to check the corresponding fuse. But before you climb into the block, be sure to turn off the ignition and remove the terminal from the battery - this will protect you from short circuits and failure of electronic modules.
Where are the fuse boxes located in the Nissan X-Trail T31
B Nissan X-Trail T31 There are three main locations for fuses and relays:
- 🔧 Salon block — located to the left of the steering column, behind the plastic cover. To gain access, just pry the cover with a screwdriver or your fingers (it is secured with latches).
- 🚗 Engine compartment block — located next to the battery (driver's side). The lid is attached to two plastic clips.
- ⚡ Additional relay block — in some trim levels it is installed under the glove compartment or behind the glove box. Here are the relays for the climate control system and the audio system.
Most popular among owners salon unit, since this is where the fuses for most consumers are concentrated: lighting, multimedia, power windows, etc. The engine compartment block is responsible for more “serious” circuits: starter, generator, cooling fans. Attention: in diesel versions X-Trail T31 the engine compartment circuit may include additional fuses for the injection system and glow plugs.
To avoid confusion, remember a simple rule: if it doesn’t work internal equipment (radio tape recorder, backlight, cigarette lighter) - see interior unit. If there are problems with engine or external lighting — check the engine compartment.
- Only when something breaks
- Once a year for prevention
- Never checked
- I don’t check it myself, I go to the service station
Diagram and explanation of the interior fuse box
Salon block Nissan X-Trail T31 contains fuses and relays for most internal systems. Below is the current diagram with decoding for cars 2007–2013 (including restyled versions). Please note: fuse numbers may vary depending on equipment, but they are rating (amps) and purpose remain unchanged.
| Fuse no. | Rating (A) | Purpose | Notes |
|---|---|---|---|
| 1 | 10 | Audio system, navigation | Also responsible for the USB port and Bluetooth module |
| 5 | 15 | Cigarette lighter, 12V socket | Often fails when using powerful devices |
| 10 | 7.5 | Dashboard lighting | When burned out, the speedometer backlight dims or flashes |
| 15 | 20 | Window lifters (all 4 doors) | If all windows do not work, check this fuse |
| 20 | 10 | Fog lights (front) | In some trim levels it is responsible only for the left headlight |
A complete diagram of the interior unit can be found on the back of the cover (there are markings there). If you have X-Trail T31 with leather interior or premium Bose audio system, pay attention to fuse No. 3 (10A) - it is responsible for the sound amplifier. When it burns out, the radio turns on, but there is no sound.
⚠️ Attention: When replacing fuse #5 (cigarette lighter), do not use bugs or fuses of a higher rating. This may lead to fire in the cabin due to circuit overload. If the new fuse immediately blows, check the 12V outlet for a short circuit.
Check the circuit for short circuit with a multimeter
Inspect the wires for melting or damaged insulation.
Disconnect all consumers connected to this circuit
Make sure the new fuse is the correct size -->
Engine compartment fuse box: diagram and features
Engine compartment block Nissan X-Trail T31 located next to the battery and contains fuses for power electronics: starter, generator, injection system, cooling fans, etc. The main relays that control engine operation are also located here. Important: in diesel versions (M9R) the circuit includes additional fuses for glow plugs And injection pump.
Below is a diagram for petrol versions (MR20DE/QR25DE). For diesel engines, fuses No. 30 (30A, glow plugs) and No. 35 (20A, EGR valve) have been added.
| Fuse no. | Rating (A) | Purpose | Consequences of burnout |
|---|---|---|---|
| 25 | 100 | Main fuse (megafuse) | Complete blackout of the car |
| 28 | 40 | Radiator cooling fans | Engine overheating, especially in traffic jams |
| 30 | 30 | Glow plugs (diesel) | Cold starting problems |
| 32 | 15 | Fuel pump (gasoline) | The engine does not start or stalls |
| 38 | 10 | Engine control unit (ECU) | Errors P0600–P0606, unstable work |
Particular attention should be paid fuse No. 25 (100A) - this is the so-called megafuse, which protects the entire on-board network. Its burnout leads to a complete blackout of the car. If this happens, do not rush to replace it - first check the chains for short circuit, especially in the area of the generator and starter.
In diesel versions X-Trail T31 Fuse No. 30 (glow plugs) often fails. Symptoms: The engine is difficult to start when cold, and the rev indicator is on on the dashboard. Check before replacing glow plug relay (it is located nearby, in the same block).
How to check the glow plug relay without instruments
Press the relay - if it clicks, it means it is mechanically sound.
Swap with a known working relay (for example, a fan relay).
If after replacement the problem disappears, the relay is faulty and requires replacement.
How to properly check and replace a fuse
Replacing the fuse in Nissan X-Trail T31 - a simple procedure, but there are several nuances that will help you avoid mistakes. Here are the step-by-step instructions:
- Turn off the power. Remove the negative terminal from the battery or turn off the ignition (for the interior unit).
- Find the faulty fuse. Use the diagram from the previous sections or inspect the fuses visually - a blown one will have a broken metal thread.
- Remove the fuse. To do this, use special tweezers (usually attached to the block cover) or pliers with thin jaws.
- Check the circuit. If the new fuse blows immediately, look for a short circuit (see checklist above).
- Install a new fuse. He must be same denomination, as the old one. Using bugs or fuses of a higher rating may result in a fire!
To check the fuse without removing it, you can use multimeter in call mode. Connect the probes to the fuse contacts - if the circuit is closed (there is a sound signal), the fuse is good. You can also check the voltage at the input and output of the fuse with the ignition on: if there is 12V at the input, but not at the output, the fuse has blown.
⚠️ Attention: Never check the serviceability of a fuse “for a spark” by touching it to metal parts of the body. This may cause short circuit and damage the vehicle's electronic modules.
If you don't have a multimeter at hand, you can check the fuse visually by holding it up to a light. The burnt thread will be clearly visible in the light.
Frequent problems with fuses in the X-Trail T31 and their solutions
Owners Nissan X-Trail T31 often encounter typical problems related to fuses. Here are the most common cases and how to resolve them:
- 🔌 The cigarette lighter fuse blows (No. 5, 15A). The reason is a short circuit in the 12V socket or the connection of too powerful devices (for example, a compressor or inverter). Solution: disassemble the socket, check the contacts for melting. If the problem persists, replace the outlet itself.
- 💡 Fog lights do not work. Check fuse No. 20 (10A) and relay No. 11 in the interior unit. If the fuse is good, inspect the wiring for chafing (especially in the bumper area).
- 🚪 The power windows don't work. The culprit is fuse No. 15 (20A) or relay No. 7. If replacement does not help, check the window motors (the contacts in the door cards often fail).
- 🔊 The audio system does not work. Check the #1 fuse (10A) and the amplifier fuse (#3, 10A if you have a Bose system). Also inspect the radio connectors for oxidation.
- ❄️ The heated seats do not work. Fuse No. 8 (15A) is responsible. If it is working, check the thermal fuses in the seats themselves (they are located under the upholstery).
One of the most insidious problems is periodic blowing of the engine control unit fuse (No. 38, 10A). This may be caused breakdown in the sensor circuit (for example, an absolute pressure sensor) or a malfunction of the ECU itself. In this case, it is better to contact a diagnostician, since a scanner check is required (for example, Launch X431 or Bosch KTS).
Another typical situation is megafuse burnout (No. 25, 100A) after washing the engine compartment. Water enters the fuse box, causing a short circuit. If this happens, dry the unit with a hairdryer (do not use a compressor - you can damage the contacts) and treat the contacts spray for electronics (For example, Kontakt 60).
If a fuse blows again after replacement, never increase its rating. This can lead to melted wiring and even a fire. In this case, be sure to look for the cause of the short circuit!
Where to buy fuses for Nissan X-Trail T31
Fuses for Nissan X-Trail T31 - consumables, and they can be bought at any auto store or ordered online. Here are a few proven options:
- 🛒 Genuine Nissan fuses. Article:
28515-JA00A(set of 10 pieces of different denominations). Plus: perfect quality, minus: high price (about 500–700 rubles per set). - 🔧 Analogs from Bosch or Hella. Reliable and inexpensive (a set of 20 pieces costs 200–300 rubles). Suitable for most foreign cars.
- 🌍 Online stores (AliExpress, Wildberries, Ozon). You can find sets for 100–150 rubles, but the quality may be lower. Pay attention to reviews.
- 🏗️ Electronics stores (for example, Chip and Dip). They sell fuses in glass or ceramic cases that are suitable for non-standard circuits.
When purchasing, pay attention to denomination (it is indicated on the fuse housing) and type:
- Mini (APM/ATM) — used in the salon unit.
- Maxi - for an under-hood unit (for example, megafuse 100A).
- JCase - less common, but can be found in high power circuits.
If you buy fuses online, take extra - they often fail at the most inopportune moment. Store them in the glove compartment or glove compartment. It is also useful to have with you extraction tweezers (costs 50–100 rubles) and multimeter (For example, DT-830B for 300–500 rubles).
Before purchasing fuses from AliExpress, check if the seller supports returns. Sometimes you come across defective copies with a fusible insert that is too thin, which burns out at the slightest load.
FAQ: Frequently asked questions about Nissan X-Trail T31 fuses
🔍 How can you tell if the fuse is blown if you can’t see it visually?
If the fuse thread is not broken, but suspicions remain, check it with a multimeter in continuity mode. Connect the probes to both contacts: if the circuit is closed (there is a sound signal), the fuse is good. You can also swap it with a known working fuse of the same rating - if the problem remains, it is not the problem.
⚡ Is it possible to temporarily replace the fuse with a “bug” (wire)?
Strongly not recommended! The “bug” is not designed for a specific current and may cause reflow of wiring or even a fire. If you urgently need to get to a service station, use a fuse of a slightly lower rating (for example, instead of 15A, use 10A), but only for a short time.
🚗 Where is the central locking fuse in the X-Trail T31?
Central lock in Nissan X-Trail T31 protected by fuse No. 12 (10A) in the cabin unit. If the lock does not work, also check relay No. 6 in the same block. If replacing the fuse does not help, inspect the actuators in the doors - they often fail due to moisture.
🔋 Why does it blow again after replacing the fuse?
This means that the circuit has short circuit. Algorithm of actions:
- Disconnect all consumers connected to this circuit.
- Check the wires for melting or damaged insulation.
- If everything is visually normal, use a multimeter in resistance measurement mode - during a short circuit the resistance will be close to zero.
- Pay attention to places where wires rub against the body or moving parts.
If you cannot find the cause yourself, contact an auto electrician.
🔧 Which fuse is responsible for the radio in the X-Trail T31?
The audio system is controlled by fuse No. 1 (10A) in the interior unit. If after replacing it the radio does not turn on, also check the amplifier fuse (No. 3, 10A, if there is a system Bose). If the problem persists, inspect the radio connectors for oxidation or check the voltage at the wiring harness (should be 12V on the yellow wire).