Nissan Pulsar FN15: fuse diagram with decoding and replacement instructions

Nissan Pulsar FN15 (2013–2018) is a compact hatchback that has gained popularity due to its reliability and efficiency. However, even in such a car, electrical problems periodically arise, and blown fuses are often to blame. Without an accurate block diagram, replacing them turns into a guessing game, and this is fraught with short circuits or failure of expensive components.

In this article you will find detailed fuse layout diagram for Nissan Pulsar FN15, including a breakdown of each element, photos of the blocks and step-by-step replacement instructions. We will also look into typical mistakesthat owners make when working with electrical equipment, and we will give recommendations for diagnosing faults. If you are faced with the fact that the cigarette lighter, headlights or window regulators do not work, here you will find the answers.

Where is the fuse box located in Nissan Pulsar FN15

B Nissan Pulsar FN15 provided two main fuse boxes:

• 🔧 Main unit in the cabin — located to the left of the steering column, behind the plastic cover. To access it, just open the driver's door and remove the protective panel by prying it off with a screwdriver or a flat object.
• 🔋 Additional block under the hood — located next to the battery, in a plastic box with a lid. This block is responsible for high-voltage circuits (generator, starter, injection systems).

Important: in some trim levels Pulsar FN15 (for example, with an engine HR16DE) may be present third mini-block behind the glove compartment - it is responsible for the audio system and climate control. Its availability depends on the year of manufacture and region of delivery of the vehicle.

Before proceeding with replacement, be sure to turn off the ignition and remove the battery terminal (negative). This will prevent a short circuit and reset the on-board computer.

Diagram and decoding of the cabin unit fuses

Salon block Nissan Pulsar FN15 contains fuses for most consumers: lighting, power windows, cigarette lighter, audio system, etc. Below is full diagram with decoding (valid for models 2013–2018).

Fuse no.	Denomination (A)	Purpose	Notes
F1	10	Body Control Module (BCM)	Responsible for central locking and alarm
F5	15	Cigarette lighter, 12V socket	Often burns out when using powerful devices
F10	7.5	Audio system, navigation	May fail if the radio is not connected correctly
F15	10	Window lifters (driver's door)	Burns out when the mechanism freezes or jams
F20	15	Low beam (right headlight)	Check if the headlight flashes or completely fails.

Attention: fuse F30 (20A) is responsible for the ABS and ESP systems. Replacing it without diagnostics can lead to failure of the brake system! If this fuse is blown, check the wheel sensors and wiring first.

The complete diagram with photos can be downloaded from FAQ section (question No. 4). For convenience, the fuses are numbered on the block cover - check it when searching.

Underhood fuse box: purpose and features

Block under the hood Nissan Pulsar FN15 contains fuses and relays for high voltage circuits. It is located next to the battery and is covered with a black plastic cover with the inscription FUSE & RELAY BOX. Here are the elements responsible for:

• ⚡ Starter and generator
• 🔥 Fuel injection system
• 💡 Main ignition relay
• 🔋 Radiator cooling fan

The peculiarity of this block is the presence mini fuses (rated up to 40A) and maxi fuses (up to 100A). The latter look like flat metal plates and can only be replaced at a service center.

⚠️ Attention: If the fuse in the engine compartment has blown F101 (30A)responsible for the fuel pump, do not replace it yourself. This may indicate a short circuit in the fuel pump circuit - diagnostics required!

To replace the fuses you will need here pliers with insulated handles, since some elements fit tightly in the sockets. We also recommend cleaning the contacts of the unit from oxidation (use WD-40 or special lubricant for electrical contacts).

How to check a fuse without a tester?

Visually inspect the metal thread inside the fuse. If it is torn or melted, the fuse is faulty. You can also use the “replacement method”: install a known working fuse of the same rating and check whether the circuit is functioning again.

Typical problems and their causes

Owners Nissan Pulsar FN15 often encounter repeated malfunctionsassociated with fuses. Here are the most common cases and their causes:

• 🔌 Cigarette lighter fuse blows (F5) - usually powerful devices (for example, compressors or inverters) are to blame. Solution: Use a protected power strip or connect devices directly to the battery.
• 🚗 Power windows don't work - check the fuse F15 and relay R10. Often the problem lies in freezing of the mechanism or wear of the guides.
• 💡 Low beam flashes or does not light up - the fuse is at fault F20/F21 or relay R5. Also check the lamps and wiring for oxidation.
• 🔊 The radio doesn't work - fuse F10 or problems with the CAN bus (requires diagnostics with a scanner).

If the fuse blows immediately after replacement, this indicates short circuit in the chain. In this case it is necessary:

1. Check wiring for exposed wires or melted insulation.
2. Disconnect consumers connected to this circuit (for example, additional equipment).
3. Contact the service to check with a multimeter.

Step-by-step instructions for replacing the fuse

Replacing the fuse in Nissan Pulsar FN15 - a simple procedure, but requires care. Follow these instructions to avoid errors:

1. Turn off the power: Turn off the ignition and remove the negative terminal from the battery.
2. Find the block: the cabin unit is located to the left of the steering wheel, the engine compartment is located next to the battery.
3. Remove the cover: pry it off with a screwdriver or your fingers (in the interior unit the cover is secured with latches).
4. Identify the faulty fuse: use the diagram from tables above or visually check the integrity of the thread.
5. Remove the fuse: use special tweezers (available in the unit) or pliers. Don't pull the wires!
6. Install new: the fuse must be same denomination (color and markings are indicated on the case).
7. Check circuit operation: Connect the battery terminal and turn on the ignition. If the fuse blows again, look for a short circuit.

⚠️ Attention: Never use "bugs" (homemade wire jumpers) instead of fuses! This may lead to fire in the wiring or failure of electronic components (for example, ECU).

If the device still does not work after replacing the fuse, check:

• Relay condition (they can also fail).
• Presence of voltage at the fuse contacts (use a multimeter).
• Integrity of wiring from the unit to the consumer.

How to extend the life of fuses: prevention tips

To keep the fuses in Nissan Pulsar FN15 last longer, follow these recommendations:

• 🔌 Avoid overload: Do not connect devices with a power of more than 120 W (for example, car refrigerators) to the cigarette lighter. Use power strips with protection.
• 💧 Protect wiring from moisture: After washing, check the door and hood seals. Moisture can cause contact corrosion.
• ⚡ Keep an eye on your battery: Low voltage or surges when starting the engine increase the load on the fuses. Check the battery every 6 months.
• 🔧 Clean your contacts regularly: Oxidized or dirty contacts in fuse boxes lead to overheating. Use contact cleaner CRC 2-26.

Also note fuse quality. Cheap Chinese analogues often have a low rating or poor contact, which leads to their rapid failure. Buy fuses from trusted brands:

• Bussmann (Germany)
• Littlefuse (USA)
• Hella (Germany)

If you are installing additional equipment (such as a subwoofer or LED lighting), be sure to use separate fuses with the calculated denomination. Connecting directly to standard wiring without protection is one of the main causes of fires in cars.

FAQ: Frequently asked questions about Nissan Pulsar FN15 fuses

Where can I download a complete fuse diagram in high quality?

Full diagram in format PDF can be downloaded from this link (section Electrical Wiring Diagram for model Pulsar FN15). Also, diagrams are often posted on owner forums, for example, on NissanClub.

Which fuse controls the heated seats?

For heated seats in Nissan Pulsar FN15 fuse responds F25 (15A) in the salon block. If the heating does not work, also check the relay R12 and the circuit for a break (the wires under the seat often fray).

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

Absolutely not! Increasing the fuse rating may lead to melted wiring or failure of electronic components. If the fuse blows again, look for the cause (short circuit, faulty consumer) or contact service.

What should I do if, after replacing the fuse, the device still does not work?

Possible reasons:

1. The relay is faulty (check for a click when turned on).
2. Broken wiring or oxidation of contacts.
3. Failure of the device itself (for example, a window lift motor).
4. Problems with ground (check the grounding on the body).

For diagnostics, use a multimeter or contact an auto electrician.

Which fuse controls the central locking?

Behind the central lock Nissan Pulsar FN15 fuse responds F1 (10A) in the salon block. If the lock does not work, also check:

• fuse F3 (7.5A) (responsible for the body control unit).
• Relay R1 in the salon block.
• The battery is in the key fob (if the remote opening does not work).