Nissan Teana J31 is a popular business class sedan, released in 2008-2013, which still remains in demand in the secondary market. Like any car, it is not immune to electrical problems, many of which involve blown fuses. In this article we will look at where the fuse boxes are located in Teana J31, we will decipher the diagram of each element, talk about the signs of their failure and show how to correctly replace the fuse without the risk of damaging the on-board network.

The car's electrical system is protected by dozens of fuses, and if your headlights, power windows or multimedia stop working, the first thing you should check is them. A mistake many owners make is ignoring the fuse rating when replacing, which can lead to a short circuit or even a fire. We will analyze in detail which fuses are responsible for which functions, how to diagnose them, and what to do if the problem remains after replacement.

Where are the fuse boxes located in Nissan Teana J31

B Teana J31 There are two main fuse blocks:

  • 🔋 Main unit in the cabin — located to the left of the steering column, behind the plastic cover. To gain access, simply pull the tab on the cover.
  • 🚗 Additional block under the hood - located next to the battery, in a plastic box with the inscription FUSE & RELAY BOX. To gain access you will need to release two latches.

The car also has mini blocks with relays and fuses responsible for specific systems (for example, headlight or audio system control unit). They can be located behind the glove compartment, under the center console or in the trunk - their location depends on the configuration.

Important: in some versions Teana J31 (for example, with an engine VQ25DE) the fuse diagram may vary slightly. Always check your vehicle's manual or the label on the back of the block cover.

📊 Where do your fuses blow out most often?
  • In the salon block
  • In the engine compartment
  • In mini blocks
  • I don't know, haven't checked

Fuse diagram Nissan Teana J31: decoding by numbers

Below is a table with the assignment of fuses for main cabin unit. Ratings are in amperes (A). Please note: depending on the year of manufacture and configuration, some items may be spare (marked as SPARE).

Fuse no. Rating (A) Purpose Symptoms of a problem
1 10 Body control unit (BCM), immobilizer The central locking does not work, the alarm does not go off, the engine does not start
7 15 Audio system, navigation, Bluetooth The radio does not turn on, there is no sound, the screen does not work
12 20 Window lifters (all 4 doors) The windows do not work, the relay click is heard, but there is no movement
18 10 Cigarette lighter, 12V socket Phone charging does not work, cigarette lighter does not heat up
25 15 Headlights (low beam, left and right) One or both headlights do not light, the light flickers

Complete fuse diagram for engine compartment block can be found on the inside of its lid. The relays responsible for the cooling fan, fuel pump and other critical systems are also indicated there. For example, relay K9 manages the work starter - If the car does not start, check it first.

How to check the relay?

To test the relay, remove it from the socket and apply 12V voltage to contacts 85 (+) and 86 (-). If you hear a click, the relay is working properly. If not, replace it. Also check the resistance between pins 30 and 87: in normal condition it should be infinite, when voltage is applied it should be close to 0.

Signs of a blown fuse and how to diagnose it

Blown fuse in Teana J31 manifests itself differently depending on the circuit being protected. Here are the most common symptoms:

  • 💡 Lighting: headlights, dimensions or interior lighting do not work (fuses are often to blame #25, #26).
  • 🔊 Audio system: the radio does not turn on or resets settings (fuse #7 or #10).
  • 🚪 Electrical package: power windows, mirrors or central locking do not work (fuses #12, #14).
  • ⚡ Electronics: errors on the dashboard, on-board computer does not work (fuse #1 or #3).

To diagnose a fuse, a visual inspection is sufficient: a blown fuse link will have broken thread or melted body. However, in some cases the break may not be noticeable. Then it will help multimeter:

  1. Set the continuity test mode (diode icon).
  2. Touch the probes to the fuse contacts.
  3. If the resistance approaches zero, the fuse is good. If on the screen 1 or OL - replacement required.
💡

If you don't have a multimeter at hand, you can check the fuse for a spark: insert it into the socket and shake it slightly. If you hear a crackling noise or see sparks, the fuse is faulty and needs to be replaced.

⚠️ Attention: Never test fuses for sparks in blocks connected to ECU (electronic control unit) or ABS. This can cause a power surge and damage expensive electronics.

How to correctly replace a fuse in Nissan Teana J31

Replacing a fuse is a simple procedure, but it requires care. Here are the step-by-step instructions:

  1. Turn off the ignition and remove the key from the lock. This will prevent short circuit.
  2. Find the faulty fuse according to the diagram (see section above) and remove it plastic tweezers (usually included in the fuse box).
  3. Install a new fuse same denomination. Using a fuse with a large amperage can cause a fire in the wiring!
  4. Check the operation of the circuit. If the fuse has blown again, look for short circuit in the wiring.

Ignition is turned off|Faulty fuse found according to the diagram|A new fuse of the same rating is prepared|Tweezers are at hand for removal-->

If after replacement the fuse blows again, the reasons may be as follows:

  • 🔌 Short circuit in the wiring (for example, frayed wires under the driver's mat).
  • 💦 Moisture ingress into the fuse box (often happens after a car wash or rain).
  • 🔋 Consumer fault (for example, a jammed window lift motor).
⚠️ Attention: If the fuse #1 (responsible for BCM) burns out again, do not try to replace it yourself. This may indicate serious problems with the immobilizer or control unit. Contact an electrician!

Frequent problems with fuses in Teana J31 and their solutions

Owners Nissan Teana J31 often encounter typical faults related to fuses. Here are the most common cases and how to resolve them:

1. The cigarette lighter fuse blows (#18, 20A)

Cause: Usually the culprit is the connection of powerful devices (for example, a compressor or inverter) or a short circuit in the outlet. Solution:

  • Check the outlet for melting.
  • Do not connect devices with more power 180 W.
  • If the problem persists, replace the cigarette lighter socket itself.

2. Power windows do not work (fuse #12, 20A)

Reason: often the fuse blows due to a jammed motor or icing of the glass in winter. Solution:

  • Check if the glass is jammed with ice or dirt.
  • Lubricate the glass guides with silicone grease.
  • If the window lift motor makes a buzzing noise, but the window does not move, replace the mechanism.

3. Headlights do not light (fuses #25 And #26, 15A)

Cause: In addition to fuses, lamps, relays or oxidized contacts may be to blame. Solution:

  • Check the low/high beam lamps.
  • Clean the contacts in the headlight unit alcohol or special liquid.
  • If the fuses burn repeatedly, check the wiring for a short circuit (especially in the harness under the hood).
💡

If in Teana J31 several systems stopped working at once (for example, headlights + power windows), the problem may be main fuse (usually 80-100A) in the engine compartment. Replacing it requires disconnecting the battery!

Where to buy fuses for Nissan Teana J31 and which ones to choose

Fuses for Teana J31 sold in any auto store, but it is important to choose quality products. Cheap Chinese analogues may have an inaccurate rating or an unreliable case, which will lead to repeated burnout.

Recommended brands:

  • 🇯🇵 Nippon or GMB - original Japanese fuses, ideal in size.
  • 🇩🇪 Hella or Bosch — European quality, reliable contacts.
  • 🇺🇸 Littlefuse - one of the world leaders in the production of fuses.

The cost of one fuse is from 20 to 100 rubles depending on the brand. Buy sets with a reserve: in Teana J31 fuses often fail 10A, 15A And 20A.

Where to buy:

  • 🛒 Official Nissan dealers - guarantee of original spare parts, but the price is higher.
  • 🌍 Online stores (For example, Exist.ru, Autodoc.ru) — it’s convenient to order a kit.
  • 🏬 Local auto stores - quickly, but check the quality certificates.
⚠️ Attention: Never use "bugs" (homemade wire jumpers) instead of fuses! B Teana J31 This could cause the wiring harness under the dash to catch fire, especially if there is a short in the circuit. ECU or ABS.

FAQ: Frequently asked questions about fuses Nissan Teana J31

Is it possible to replace a fuse with a higher rating if it keeps blowing?

No! Increasing the fuse rating may result in melted wiring or a fire. If the fuse blows repeatedly, look for short circuit or a faulty consumer (for example, a motor or a lamp).

Which fuse controls the radio in Teana J31?

The fuse controls the audio system #7 (15A) in the cabin block. If after replacing it the radio does not work, also check the fuse #10 (10A), responsible for CAN bus.

Why in Teana J31 Is the central locking fuse blown?

Most often this is due to jammed actuator in the door or corrosion in the wiring. Check the operation of each door's locks manually. If one of the doors does not open/close using the remote control, that is the problem.

Where is the fuse for the fuel pump?

Fuel pump fuse (Fuel Pump) is located in engine compartment and usually has a face value 15A (position #37). If the pump does not work after replacing it, check the relay K5 in the same block.

Can I fix the fuse box myself if it melts?

If only the fuse contacts are melted, they can be carefully cleaned sandpaper (grit 600-800). If the unit itself is damaged, replacement is required. B Teana J31 The interior fuse box costs approx. 3,000–5,000 rubles.