<em>Nissan Pulsar</em> fuses: location, diagram and DIY replacement

Nissan Pulsar - a compact car that has gained popularity due to its reliability and ease of maintenance. However, even in the most proven models (N16, N17, N18), electrical problems periodically arise, and fuses are often to blame. A blown fuse can turn off everything from the headlights to the on-board computer, and an incorrect replacement can cause a short circuit or fire.

In this article you will find detailed fuse box diagrams for different generations Pulsar, you will learn how to check and change them without errors, and we will also figure out why they burn most often. We will not limit ourselves to general phrases - only specific data, including fuse ratings for European and Japanese versions, which are often different.

Where are the fuse boxes located in Nissan Pulsar

B Pulsar (depending on the year of manufacture and configuration) the fuses are located in three main blocks:

• 🔧 Main unit in the cabin — under the instrument panel on the driver’s side (behind the protective cover). Fuses for most systems are concentrated here: lighting, climate control, audio system.
• 🔋 Block under the hood — next to the battery (in a plastic box). Responsible for high-current circuits: starter, generator, cooling fans.
• 🚗 Additional unit in the trunk (only in some versions, e.g. Pulsar N17 with the system Bose). Here are the fuses for the sound amplifier and rear power windows.

To get to the cabin unit, it is enough open the driver's door, unscrew the two screws securing the cover (usually a screwdriver Phillips #2) and carefully remove it. Under the hood, the block is most often fixed with latches - they need to be pressed on both sides.

⚠️ Attention: B Pulsar N18 (2014–2018) The unit under the hood may be hidden under a plastic battery cover. Do not try to break it - the pad is attached to clips and can be removed by moving upwards.

If you are not sure where exactly the fuse is located, use markings on the inside of the unit cover - there is usually a diagram with symbols. Please refer to the table below for accuracy.

Fuse diagram Nissan Pulsar N16 (2000–2005)

Model N16 - one of the most common in Russia, but its electrical circuit has its own peculiarities. For example, fuse F30 (10A) is responsible for immobilizer, and if it burns out, the car may not start. Below is a table with the main fuses of the cabin unit:

Number	Denomination (A)	Purpose	Notes
F1	10	Dimensions lamps (left side)	Lights up frequently when installing LED lamps
F7	15	Cigarette lighter	Burns out when connecting powerful devices (for example, a compressor)
F18	10	Engine control unit (ECU)	Replace only with the ignition off!
F25	20	Heater fan	Check relay K3 in case of malfunction
F30	10	Immobilizer, alarm	When replacing, retraining of keys is required

In the block under the hood N16 pay special attention to the fuse F101 (80A) - it protects the generator circuit. Its burnout is often associated with diode bridge malfunction or short circuit in the wiring. If after replacement the fuse burns out again, you need to check the generator with a multimeter.

How to check the fuse in Nissan Pulsar: 3 reliable ways

Before changing the fuse, it must be check correctly. Many drivers limit themselves to visual inspection, but this is not always effective - sometimes the break inside the housing is not visible. Here are three verification methods:

1. Visual inspection.

   Remove the fuse and look at the light: if the metal thread inside is torn or melted, it is faulty. However, this method is not suitable for fuses in an opaque housing.

2. Check with a multimeter.

   Set the device to continuity mode (or resistance measurement). Touch the contacts of the fuse with the probes: if the resistance tends to zero, it is operational, if infinity, it is burned out.

   Режим мультиметра: "200Ω" или "Прозвонка"
   Сопротивление исправного предохранителя: 0–0.5 Ом

3. Replace with a known good one.

   If you have a fuse of the same rating on hand, temporarily install it instead of the one you are testing. If the device works, the problem is solved.

⚠️ Attention: Never test fuses for sparks - this can damage the vehicle's electronics. Also, do not use fuses with a higher rating than specified (for example, 20A instead of 10A) - there is a risk of fire!

If the fuse burns again after replacement, this is a signal short circuit in the chain. In this case, you need to check the wiring for damage or contact an auto electrician.

Turn off the ignition and remove the terminal from the battery|Find the exact fuse number according to the diagram|Prepare a fuse of the same rating|Check the circuit for a short circuit (if the fuse has burned repeatedly)-->

Typical causes of blown fuses in Pulsar

Fuses do not burn just like that - their blowing is always associated with problems in the electrical circuit. Here are the most common reasons for Nissan Pulsar:

• ⚡ Short circuit. Most often it occurs due to frayed wire insulation (for example, in doorways or under the hood). B Pulsar N17 the weak point is the wiring harness near the pedal assembly.
• 💡 Installation of non-standard equipment. Connecting powerful speakers, LED lamps or a DVR without a relay often leads to an overload of the circuit. For example, fuse F7 (cigarette lighter) lights up when the compressor is connected directly.
• 🔋 Consumer failure. If the fuse is blown F15 (20A, heater fan), check the fan itself - its jamming or wear of the brushes leads to increased current.
• 🌧️ Moisture ingress. B Pulsar The weak point is the fuse box under the hood. After washing or rain, water can penetrate the seals, causing corrosion of the contacts.

Fuses associated with ignition system (F18) and lighting (F1, F2). If they light up regularly, check:

• Condition of the contacts in the pads (oxidation or burning).
• Integrity of wiring from battery to fuse box.
• The operation of a relay that controls a given circuit (for example, a relay K5 for headlights).

Step-by-step instructions for replacing the fuse

Replacing the fuse in Nissan Pulsar - a simple procedure, but requiring accuracy. Here is a step-by-step algorithm:

1. Turn off the power.

   Turn off the ignition and remove the negative terminal from the battery (especially important when working with the unit under the hood).

2. Find the faulty fuse.

   Use the diagram on the block cover or the table from this article. For convenience, you can illuminate it with a flashlight.

3. Remove the fuse.

   In the salon block Pulsar fuses are removed with special plastic pliers (usually attached to the block cover). If there are none, you can carefully pry the fuse off with a small screwdriver.

4. Install a new fuse.

   He must be same denomination (color and markings are indicated on the case). Do not insert bugs (wire jumpers) - this may cause a fire!

5. Check the operation of the circuit.

   Connect the battery terminal and turn on the ignition. If the fuse blows again, look for the cause in the wiring or consumers.

If you are replacing a fuse in the under hood block, pay attention to relay - they are often located nearby. For example, relay K1 is responsible for the cooling fan, and its malfunction can simulate a blown fuse.

What to do if the fuse is stuck to the contacts?

If the fuse cannot be removed with pliers, do not pull it by force - this may damage the tracks on the unit board. First, rock it from side to side, and if that doesn’t help, treat the contacts with spray WD-40 and wait 5-10 minutes. As a last resort, carefully pry it out with a thin screwdriver, but without jerking.

Differences between fuses Pulsar N17 And N18

Models N17 (2005–2012) and N18 (2013–2018) have different fuse box layouts. Here are the key differences:

• 🔌 B N17 fuse F20 (10A) is responsible for oxygen sensor, and in N18 this function has been translated to F15 (15A).
• 🎵 B N18 there is a separate fuse for rear view cameras (F35, 10A), which is not in N17.
• 🔋 In the block under the hood N18 fuse added F105 (100A) for system Start/Stop (if installed).

Also in N18 used different type of fuses for high-current circuits - instead of standard blade ones there can be JCase or Mega Fuse. They cannot be replaced with regular ones, so always take spare ones from the original set with you.

Model	fuse	Denomination (A)	Features
N17	F22	15	ABS (in N18 moved to F25)
N18	F30	20	Heated seats (not available in N17)
N17	F102	80	Generator (in N18 — F103, 100A)

⚠️ Attention: B Pulsar N18 with diesel engine 1.5 dCi fuse F104 (30A) is responsible for heating candles. Replacing it while the engine is running can lead to failure of the control unit!

Frequently asked questions about fuses Nissan Pulsar

Is it possible to install a larger fuse if it is constantly on?

No! Increasing the rating will lead to overheating of the wiring and the risk of fire. If the fuse burns repeatedly, look for the cause - a short circuit or a faulty consumer (for example, a jammed heater motor).

Where to buy original fuses for Pulsar?

Original fuses Nissan sold at dealerships (item number for set: 28510-4M000). An alternative is high-quality analogues from Littlefuse or Bussmann (series ATM). Avoid cheap Chinese fuses - they may not correspond to the declared rating.

Why does the cigarette lighter not work after replacing the fuse?

Probable reasons:

• Burnt out cigarette lighter relay (in the block under the hood, usually K7).
• The contacts in the cigarette lighter socket have oxidized and need to be cleaned.
• The problem is in the wiring (open or short circuit between the cigarette lighter and the fuse box).

Check the voltage at the socket contacts with a multimeter - there should be 12V.

Which fuse controls the low beam? Pulsar N16?

Fuses are responsible for the low beam (left and right headlights) F3 And F4 (both 10A) in the cabin block. If the light does not come on after replacement, check:

• Lamps (often burn out at the same time).
• Relay K3 (controls the headlights).
• Light switch on the steering column.

Is it possible to repair a blown fuse with a soldering iron?

Technically possible, but highly not recommended. Homemade “bugs” are not designed to carry current and can melt, causing a fire. If you urgently need to get to the store, use a wire the same section, as the original thread, but replace it with a normal fuse as soon as possible.