Nissan Terrano 2018: where are the fuses located and how to replace them

Owners Nissan Terrano Models of 2018 sooner or later have to face the need to check or replace fuses. These small but critical elements protect the vehicle's electrical circuits from overloads and short circuits. Without them, even a minor short circuit in the wiring can damage expensive components - from the multimedia system to the engine control unit.

In this article you will find detailed layout of fuses and relays for Terrano 2018 model year, including their purpose and ratings. We will also look at how to correctly diagnose a faulty fuse, where to look for backup elements, and what mistakes are most often made when replacing. We will pay special attention hidden fuse boxes, which many owners are not even aware of - ignoring them can lead to a lengthy search for the cause of electrical faults.

Where are the fuse boxes in the 2018 Nissan Terrano?

B Nissan Terrano 2018 fuses and relays are distributed over three main blocks. Their location depends on the configuration and supply market, but in most cases the layout is standard:

• 🔧 Main unit in the cabin — located to the left of the steering column, behind the protective cover. Fuses for most consumers are concentrated here: lighting, multimedia, comfort systems.
• 🚗 Block under the hood — located next to the battery. Responsible for high-power circuits: starter, generator, cooling fans.
• ⚡ Additional block — in some trim levels it is installed behind the glove compartment or under the center console. Often contains fuses for safety systems (ABS, ESP).

It is important to consider that Terrano for the Russian market (production AvtoVAZ) the arrangement of blocks may differ slightly from European or Asian versions. For example, in basic configurations there may be no additional unit under the console, and its functions are transferred to the main cabin module.

Before you start looking for a faulty fuse, be sure to turn off the ignition and remove the terminal from the battery. This will prevent short circuits if the contacts are accidentally connected. Also prepare a flashlight - lighting in the areas where the blocks are located is often insufficient.

Fuse diagram for the cabin unit (left-hand drive)

Main cabin block Nissan Terrano 2018 contains fuses and relays for most electrical systems. Below is a table with the purpose of each element and its value. Please note that fuse numbering may vary depending on the year of manufacture and configuration.

Fuse no.	Denomination (A)	Purpose	Notes
F1	10	Engine control system (ECU)	Errors may occur during burnout P0600 or P0606
F5	15	Comfort unit (central locking, power windows)	Often fails when power windows freeze
F10	20	Audio system and navigation	When replacing, check the circuit for current leakage
F14	10	ABS sensors	Burnout may be accompanied by a flashing ABS indicator
F20	25	Heated rear window	Check the integrity of the heating filaments before replacing

To access the interior fuse box, follow these steps:

Turn off the ignition and remove the terminal from the battery|

Locate the plastic cover to the left of the steering column|

Press the latches on the sides of the cover and pull it towards you|

Take a photo of the location of the fuses before removing them-->

If you find a blown fuse, don't rush to replace it. First check the circuit for short circuit or overload. For example, if a fuse regularly blows F5 (15A) for central locking, the problem may lie in a jammed window motor or damaged wiring in the door.

Fuse box under the hood: purpose and features

Underhood fuse and relay box Nissan Terrano 2018 responsible for high-power circuits, including starting, charging and cooling systems. Its location is next to the battery, under the plastic cover. Unlike the interior unit, fuses of increased ratings are used here (up to 100A), as well as powerful relays.

Features of the engine compartment:

• 🔥 Fuses are often here fusible (fuse link) - they cannot be replaced with standard blade fuses.
• ⚡ Relays have a unified numbering, but their contacts may differ depending on the configuration.
• ❄️ During the winter period, the contacts of the unit may oxidize - periodic cleaning is recommended.

Below is a diagram of the key elements of the engine compartment:

Designation	Denomination (A)	Purpose	Type
F30	80	Main injection relay	fuse
F32	100	Generator	fuse
R4	—	Cooling Fan Relay (Low Speed)	Relay 12V
R5	—	Fuel pump relay	Relay 12V

⚠️ Attention: When replacing fuse links under the hood, use only original parts of the same rating. Installing fuses with too high a current may lead to fire in the engine compartment due to overheating of the wiring.

If you need to replace a relay, pay attention to its markings. For example, the cooling fan relay (R4) and fuel pump relay (R5) are identical in appearance, but have different wiring diagrams. Mixing up the relay can cause unstable engine operation or overheating.

How to check and replace a fuse: step-by-step instructions

Diagnostics and replacement of fuses in Nissan Terrano 2018 does not require special skills, but it is important to follow a certain algorithm. Here are the step-by-step instructions:

1. Turn off the power. Remove the negative terminal from the battery or turn off the ignition (for the interior unit).
2. Find the faulty fuse. Visually inspect the elements for burnt contacts or broken threads. You can also use a multimeter in dialing mode.
3. Remove the fuse. Use the special tweezers that came with the car or pliers with insulated handles.
4. Install a new fuse. He must have same denomination, just like the original one. Installing a fuse with a lower current will lead to its immediate blowout, while installing a fuse with a higher current will lead to the risk of damage to the wiring.
5. Check the operation of the circuit. Connect the battery and turn on the ignition. If the fuse blows again, look for a short circuit.

To check the fuse with a multimeter:

1. Set the device to dial mode (diode or buzzer icon).
2. Touch the probes to the fuse contacts. A good fuse will show 0 ohm (or will emit a beep), burnt out - OL (break).

What should I do if the new fuse immediately blows?

If the installed fuse blows immediately after connection, this indicates short circuit in the chain. In this case:

1. Disconnect all consumers connected to this circuit (for example, if it is a cigarette lighter fuse, disconnect all devices).

2. Check the wiring for insulation damage or short to ground.

3. If you cannot find the cause yourself, contact an auto electrician with diagnostic equipment.

Some owners Terrano They are faced with a problem when the fuse looks good on the outside, but the circuit does not work. In this case, the reason may be contact oxidation in the fuse block. To fix the problem:

• Remove the fuse and inspect the sockets for green residue or corrosion.
• Clean the contacts with alcohol or a special liquid for cleaning electrical contacts.
• Apply a thin layer Li-qui Moly Kontakt-Spray or similar oxidation protection agent.

Hidden fuses and relays: where to look and what they are responsible for

In addition to the main blocks, Nissan Terrano 2018 There are several "hidden" fuses and relays that are not mentioned in the standard documentation. Their location and purpose:

• 🔍 Immobilizer fuse — located behind the glove compartment, in a small black block. Responsible for communication between the key and the engine control unit. If it burns out, the car will not start, and the immobilizer indicator flashes on the dashboard.
• 🔋 Auxiliary heater relay - in configurations with Webasto or similar systems is installed under the center console. Often fails when overheated.
• 📡 Antenna amplifier fuse — located behind the trunk trim, next to the multimedia control unit. When it burns out, the radio and navigation signal disappears.

Access to these elements is difficult, so before checking them it is recommended:

1. Study the electrical diagram of a specific configuration (can be found in the repair manual Nissan Terrano or on owner forums).
2. Use a flexible endoscope to examine hard-to-reach areas.
3. When replacing hidden fuses, note their location - they are often installed without standard numbering.

⚠️ Attention: In some trim levels Terrano The immobilizer fuse is duplicated in the main unit under the hood (F35, 10A). If the problem persists after replacing the hidden fuse, check that too.

If you suspect a problem with hidden circuits but cannot find the fuse, use by elimination:

1. Check all fuses in the main units.
2. If the problem persists, examine the power circuit of the faulty unit (for example, if the seat heating does not work, check the circuit from the comfort unit to the seat).
3. Use a multimeter to check the voltage at the connectors of the problematic device.

Common problems with fuses and their solutions

Owners Nissan Terrano 2018 often encounter typical faults related to fuses. Here are the most common cases and how to resolve them:

Symptom	Probable Cause	Solution
Power windows don't work	Fuse blown F5 (15A) or relay R7	Replace the fuse, check the motors for jamming
Cooling fan does not turn on	fuse F31 (40A) or relay R4/R5	Also check the temperature sensor and wiring to the fan
No sound from the speakers	fuse F10 (20A) or amplifier	Check the circuit for current leakage, especially if a non-standard audio system is installed
Cigarette lighter doesn't work	fuse F12 (15A) or short circuit in the socket	Inspect the socket for foreign objects or melting

One of the most insidious problems is periodic fuses blowing for no apparent reason. This may be due to:

• 🔌 Old battery - at low voltage, the current in the circuits increases, which leads to overloading of the fuses.
• 🌡️ Overheating of the fuse box - especially relevant for the engine compartment in hot weather.
• 🔧 Poor quality fuses — cheap analogues may have unstable characteristics.

If a fuse blows without load (for example, F1 (10A) for ECU), this may indicate control unit malfunction. In this case, diagnostics with a scanner is required (for example, Launch X431) to detect errors via the CAN bus.

FAQ: Frequently asked questions about 2018 Nissan Terrano fuses

Can fuses from other cars be used?

Yes, but only if they match denomination and type. B Nissan Terrano 2018 standard blade fuses are used (blade fuse) sizes mini, regular And maxi. The main thing is not to exceed the specified current. For example, the fuse on 10A can only be replaced by 10A, but not on 15A.

What to do if the fuse is intact, but the circuit does not work?

In this case, check:

1. The voltage at the fuse contacts (should be 12V on one of the contacts when the ignition is on).
2. Status of the relay associated with this circuit (check it with a multimeter).
3. Integrity of wiring from the fuse to the consumer (possible breakage or corrosion).

Also inspect the contacts in the fuse box - they may be oxidized or burnt.

Where can I find backup fuses in my car?

B Nissan Terrano 2018 backup fuses are usually located:

• In the main cabin unit - in special slots with the inscription SPARE.
• In the glove compartment - in some trim levels there is a set of spare fuses.
• In the tool box - along with a jack and a wheel wrench.

If there are no backup fuses, you can purchase them at any auto store. The main thing is to choose the right denomination.

Which fuse controls the radio?

In most trim levels Nissan Terrano 2018 The fuse controls the audio system F10 (20A) in the salon block. However, in versions with a premium audio system (Bose) there may be an additional fuse F18 (15A) for the amplifier. If the radio does not work after replacing the fuse, also check the fuse F22 (10A), responsible for the control circuit (CAN bus).

Can a blown fuse be repaired?

No, Repairing fuses is strictly prohibited. They are designed to operate once when the current is exceeded. Attempting to solder or use “bugs” (jumper wires) can lead to:

• Damage to the control unit.
• Wiring fire.
• Failure of expensive components (for example, ECU or audio system).

Always use original or certified fuses.