Nissan Teana J31: location of fuses and relays with explanations

Nissan Teana J31 (2003–2008) - a popular business class sedan, known for its reliability and comfort. However, even in such cars, electrical circuits periodically fail, and burnt-out circuits are often to blame for this. fuses or faulty relay. If your headlights, power windows, audio system or other electrical components stop working, the first thing you should do is check the fuse box.

In this article you will find complete layout of fuses and relays for Nissan Teana J31, including their purpose, ratings and typical symptoms of malfunctions. We'll also tell you how to properly diagnose and replace components without risking damage to your vehicle's electronics. Particular attention is paid hidden fuses in the cabin, which many owners are not even aware of.

Where are the fuse boxes in the Nissan Teana J31?

B Teana J31 There are two main blocks with fuses and relays:

• 🔧 Main unit in the cabin — located to the left of the steering column, behind the plastic cover. The fuses of most electrical components are concentrated here, including lighting, climate control and multimedia.
• ⚡ Additional block under the hood — located next to the battery (driver's side). Responsible for high-voltage circuits: starter, generator, cooling fans.

Also in Teana J31 There is mini fuse box in trunk (behind the trim on the right), but it is not found on all trim levels. Its purpose is to protect the rear light circuits and premium audio systems (e.g. Bose).

To get to the interior unit, just pry off the cover with a screwdriver or a flat object. The engine compartment unit requires removal of the battery terminal (required negative first!) to avoid short circuit.

Interior block fuse diagram (2003–2008)

Salon block Nissan Teana J31 contains fuses of 10–30 A, which are responsible for most consumers. Below is a table with a breakdown by socket numbers (numbering goes from left to right, top to bottom).

Fuse no.	Denomination (A)	Purpose	Symptoms of a problem
1	10	Side light bulbs (left side)	Left side lights or dashboard lights do not light up
5	15	Audio system, navigation	The radio does not turn on, the settings are reset
10	20	Window lifters (all)	Windows do not work, relay click is heard without movement
15	10	Climate control unit	The climate control panel does not respond, the fan does not blow
20	30	Heated rear window	The rear window does not heat up, the indicator does not light up

A complete diagram with photographs of the block can be found in instruction manual (section 8-30). If you don't have a manual, pay attention to back side of the block cover — numbering is often duplicated there.

⚠️ Attention: fuse No. 17 (15A) is responsible for immobilizer. If it burns out, the car will not start! When replacing, use only original fuse links - “bugs” can burn the control unit.

Underhood fuse and relay box: what is where?

Block under the hood Teana J31 protects circuits with high current: starter, generator, ignition system. Also located here relay, controlling cooling fans, fuel pump and headlights. Below are the key elements:

• 🔥 Fuse 40A (red) — main fuse for the generator circuit. When the battery burns out, the battery does not charge, the indicator lights up BATT.
• ⚡ Cooling fan relay - if it fails, the engine overheats and the fan does not turn on even at high temperatures.
• 💡 Fuse 10A (yellow) - responsible for fog lights. It often burns out when installing non-standard lamps.

To diagnose the relay you can use test with a multimeter:

1. Remove the relay from its socket.
2. Connect the probes to the contacts 85 And 86 (control circuit). There must be resistance 50–120 Ohm.
3. Serve 12V to contacts 85 And 86 - there should be a click (closed 30 And 87).

Typical problems with fuses in Teana J31

Owners Nissan Teana J31 often encounter repeated blowing of the same fuses. This signals short circuit or increased load in the chain. Let's look at the most common cases:

• 🔌 Power window fuse (20A) — lights up when the glass freezes or the guides wear out. Check before replacing power window relay (located nearby in the block).
• 🎵 Audio fuse (15A) — fails when connecting non-standard amplifiers or subwoofers. Check positive wire to short to ground.
• 🔦 Low beam fuse (10A) — burns out when installing LED lamps without a stabilizer. B Teana J31 the standard circuit is not designed for LED!

If the fuse blows immediately after replacement, don't increase its value! This may cause a fire. Instead:

1. Disconnect all consumers in the circuit.
2. Check the wiring for a short circuit.
3. Check the serviceability of the device itself (for example, the window lift motor).

How to find a short circuit without instruments?

Disconnect the battery, remove the fuse and connect it instead control lamp (12V). If it lights up when the consumers are turned off, there is a short circuit in the circuit. Unplug the devices one at a time until the lamp goes out.

How to properly replace a fuse or relay?

Replacing fuses in Nissan Teana J31 - a simple procedure, but requiring accuracy. Follow the instructions:

Turn off the ignition and remove the battery terminal (negative)

Find the faulty fuse using the diagram or visually (a blown fuse has a broken thread)

Prepare a new fuse same denomination

Check for moisture in the block

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To remove the fuse, use plastic tweezers, which is usually attached to the block cover. If you don’t have tweezers, you can carefully pry the fuse off with a screwdriver, but do not use excessive force—the fuse sockets are fragile!

When replacing the relay, pay attention to marking:

• Relay with 4 contacts — standard (for example, for a fan).
• Relay with 5 contacts - for feedback circuits (for example, main ignition relay).

Do not confuse them - this can damage the electronics!

⚠️ Attention: B Teana J31 with xenon headlights fuse No. 25 (15A) protects the ignition unit. When replacing it do not touch the lamp bulb — grease marks reduce the service life of xenon.

Where to buy fuses and relays for Teana J31?

Original fuses for Nissan Teana J31 are produced by the company Littlefuse or Bussmann. They can be found:

• 🛒 Official Nissan dealers — quality guarantee, but the price is higher than the market (the fuse costs 150–300 ₽).
• 🔧 Auto stores (Avtodelo, Exist, AutoSpetsCenter) - there are analogues from Hella or Valeo.
• 🌍 Internet platforms (AliExpress, Wildberries) - cheaper, but there is a risk of running into a fake. Check the certificates!

For relays it is better to choose original ones Nissan 25230-4M000 (universal 4-pin) or 25230-4M005 (5-pin). Analogues from Bosch or Meat & Doria also suitable, but may differ in resource.

FAQ: Frequently asked questions about Teana J31 fuses

❓ Why does the fuse blow out again after replacement?

This indicates short circuit or increased load in the chain. For example, if the power window fuse blows, check:

• Wear of glass guides (mechanical resistance).
• Oxidation of door contacts.
• Connecting non-standard devices (for example, alarms) to this circuit.

Use dialing to find a short circuit or contact an auto electrician.

❓ Is it possible to install a fuse of a higher rating?

Absolutely not! Increasing the rating (for example, from 15A to 20A) can lead to:

• Overheating of wiring.
• Combustion of plastic elements of the block.
• Failure of expensive devices (for example, climate control unit).

If the standard fuse cannot withstand the load, look for the reason - perhaps the consumer is faulty (for example, the stove motor).

❓ Where is the cigarette lighter fuse located?

B Teana J31 The cigarette lighter fuse is No. 12 (15A) in the salon block. If it is burnt out, check:

• Connected devices (for example, DVR or compressor).
• Condition of the cigarette lighter socket - contacts often oxidize.

If the fuse is good but the cigarette lighter does not work, check positive wire (goes from the fuse box to the socket).

❓ How to check a relay with a multimeter?

Verification algorithm:

1. Set the multimeter to calls.
2. Connect the probes to the contacts 85 And 86 - there must be resistance 50–120 Ohm.
3. Serve 12V on 85 And 86 - there should be a click and the contacts 30 And 87 close (check by dialing).

If the relay does not click or close its contacts, it is faulty.

❓ Which fuses burn most often?

According to owner statistics Teana J31, most often fail:

1. No. 10 (20A) — window regulators.
2. No. 5 (15A) — audio system (especially when connecting a subwoofer).
3. No. 20 (30A) — heated rear window (if the conductive threads are damaged).
4. No. 17 (15A) — immobilizer (in case of power surges).

It is recommended to carry a spare set of these fuses with you.