Guide to finding and replacing the cigarette lighter fuse on a Nissan Terrano 3

The situation when the 12 volt socket in the car stops working Nissan Terrano third generation, occurs more often than it seems at first glance. For many owners, this is not just an inconvenience, but a serious problem, since it is through this connector that navigators, DVRs, compressors and chargers for mobile phones are connected. Often drivers immediately blame a burnt-out connector or a breakdown of the device itself, forgetting to check the simplest and cheapest circuit protection element.

The main reason for loss of power in the cigarette lighter on the model Nissan Terrano (R11, 2012–2020) is the failure of a specific fuse. This is a standard protective reaction of the electrical network to a short circuit or exceeding the permissible load. Unlike some other models Nissan, where the circuit can be confusing, in Terrano 3 The location of security elements is clearly regulated, but requires care when searching.

In this article we will look in detail at where exactly the required element is located, how to correctly determine its value and how to replace it without the risk of damaging other components. We will also look at alternative causes of failure if the new fuse fails immediately, which may indicate deeper problems in the vehicle's wiring.

Location of the fuse box in the passenger compartment

On Nissan Terrano 3 The fuse box responsible for the operation of the cigarette lighter is located inside the car. You can find it on the dashboard, on the driver's side. You need to open the glove compartment lid or, in some trim levels, remove the decorative plug from the left side panel of the dashboard. This is where the main one is located mounting block, where protection elements for salon consumers are collected.

To access the fuses, you must open the cover of the unit. A diagram of the arrangement of elements is often glued to the inside of this cover. However, it is worth remembering that the diagrams on the stickers may sometimes not coincide with reality if factory changes have been made to the car or if we are talking about different years of production. Therefore, it is better to focus on the fuse number and its rating.

You need to find the element responsible for 12V socket (CIGAR or POWER OUTLET). This is usually a yellow or red fuse rated 20A or 15A. If you do not see the markings on the cover, you will have to carefully remove all the fuses using a special plastic clip (tweezers), which usually lies in the same block, and check them visually.

⚠️ Attention: Before starting any manipulations with the fuse box, be sure to turn off the car's ignition and disconnect the negative battery terminal if you plan to work with the wiring for a long time.

• 🔍 Check the availability of special plastic tweezers for removing elements.
• 📋 Compare the diagram found on the cover with the actual location of the fuses.
• 💡 Inspect each element for a burnt-out jumper inside.

Fuse diagram and element identification

It is important to understand that in different markets (Russian Federation, Europe, Asia) configurations Nissan Terrano may differ, which affects the labeling. However, the standard cigarette lighter fuse usually designated F21 or F23 depending on the year of manufacture. The current rating is most often 20 Amps, since the cigarette lighter is a device with high power consumption.

Sometimes there is confusion with other outlets. B Terrano 3 There may be an additional socket in the luggage compartment or in the second row of seats. These outlets are often powered by other fuses. If only the front cigarette lighter does not work, the problem is in its separate line of protection, and not in the general power supply.

For accurate identification, use the table below, which is compiled based on the most common data for the model Nissan Terrano (R11). If your item does not meet these details, check the service book for your specific vehicle.

Designation	Denomination (A)	Purpose	Case color
F21	20	Cigar Lighter	Yellow
F23	20	12V socket (Power Outlet)	Yellow
F25	15	Add. socket (if available)	Blue
F10	30	Fan control unit	Green
F12	10	Dashboard	Red

If you do not find a fuse with this number, your vehicle may use a different marking system. In this case, look for an element with the inscription CIG or ACC on the body. It is also worth paying attention to the fuses located in the engine compartment, since some powerful consumers can be protected there.

⚠️ Warning: Never try to replace a blown fuse with one with a higher current rating (for example, 30A instead of 20A). This could cause the wiring to melt and cause the vehicle to catch fire.

Step-by-step replacement instructions

Replacement process fuse does not require special skills and can be done independently in a few minutes. The main thing is to act carefully and not rush. All you need is a new fuse of the required rating and, preferably, plastic tweezers to remove the old element.

First, open the fuse box and find the required element using the diagram or markings. Carefully grab it by the body and pull it out. Do not use excessive force to avoid breaking the seat. If the fuse is tight, use tweezers to hold the metal legs of the element.

After removal, carefully inspect the glass or plastic insert inside the case. A burnt-out element has a torn metal bridge or blackened glass. Make sure you select the correct denomination. Insert the new fuse into the same socket as far as it will go.

After installing the new element, turn on the ignition and check the operation of the cigarette lighter. If power appears, the problem is solved. If the cigarette lighter still does not work, the problem may not be with the fuse, but with the connector or wiring itself. In this case, you should not continue experiments with replacing fuses.

• ✅ Use only original fuses or analogues with exactly the same characteristics.
• 🛠️ Do not use screwdrivers or metal tools to remove elements.
• 🔋 After replacement, check the operation of all devices connected to the outlet.

⚠️ Attention: If the new fuse blows instantly after installation, stop experimenting immediately. This is a sign of a short circuit in the circuit that requires professional diagnosis.

Reasons for frequent burnouts

If you are faced with the fact that cigarette lighter fuse burns out regularly, this is a serious signal that there is a problem in the electrical circuit. Simply replacing the element will not solve the issue, and the situation will repeat itself. Most often, the reason lies in a short circuit inside the cigarette lighter connector itself.

Over time, the contacts in the connector can oxidize, become deformed, or short out due to moisture or dirt. The reason may also be the connection of too powerful devices that exceed the rated load of the circuit. For example, powerful compressors or inverters can create inrush currents that burn a fuse.

Another common cause is damaged wiring. The insulation of the wires may rub against body elements or other components, which leads to a short to ground. In such cases, it is necessary to carefully inspect the wiring from the fuse box to the cigarette lighter connector for damage.

What should I do if the fuse is constantly on?

If replacing the fuse does not work, you need to check the integrity of the wiring with a multimeter. Often the problem lies in the cigarette lighter connector itself, where the contacts may short to the housing. In this case, it is recommended to replace the entire cigarette lighter assembly, since repairing the contacts is often ineffective.

In rare cases, the problem may be with the power control unit or with the device itself that is plugged into the outlet. Try plugging a known-good, low-power device into the outlet. If the fuse blows again, then the problem is definitely in the car's wiring.

Diagnostics of wiring and connector

If replacing the fuse does not help, it is necessary to conduct a more in-depth diagnosis. Start by visually inspecting the cigarette lighter socket itself. It often happens that debris, metal shavings get inside the socket, or deformation of the central contact occurs, which closes to the side walls.

Use a multimeter to check. Switch it to dial mode and check for a short circuit between the central contact and the connector body. If the multimeter beeps when you touch these points, it means there is a short circuit. In this case, you need to remove the connector and clean it or replace it entirely.

It is also worth checking the wiring for signs of melting or darkening of the insulation. If you see damaged wires, they need to be replaced. Do not try to simply cover the damaged area with electrical tape, as this is not secure and may cause a fire.

• 🔌 Inspect the central contact of the connector for deformation.
• 🧹 Clean the cigarette lighter socket from dust and small debris.
• 📏 Check the voltage on the wires with the ignition on.

In some cases, the problem may be hidden in the fuse box. The contacts inside the unit can oxidize or become loose, resulting in poor contact and overheating. If you see traces of carbon deposits on the fuse seat, the unit may require replacement or repair.

Checking the engine compartment

On Nissan Terrano 3 There is also an under-hood fuse box, which is responsible for more powerful systems. Although the cigarette lighter is usually powered from the cabin unit, in some trim levels or with additional options (for example, a socket in the trunk), protection can be provided through the engine compartment unit.

To access this unit you need to open the hood and find the black box with the inscription FUSE BOX. Open the cover and check the diagram again. Fuses for windshield wipers, fan, ABS and other systems are often located here. If the cigarette lighter does not work, check to see if there is a burnt element marked POWER or ACC in this block.

Make sure the engine is off and the key is removed from the ignition before starting work.

⚠️ Attention: Do not open the engine compartment while the engine is running, as this may cause a short circuit if metal tools are accidentally touched.

If you find a burnt element in the engine compartment, replace it with a new one. After this, check the operation of the cigarette lighter. If the problem is not resolved, the problem may lie in the connector itself or in the wiring connecting the two units.

Features of the engine compartment

More powerful fuses (30A, 40A, 50A) are often used in the engine compartment. Be careful when choosing a replacement. An incorrect rating can lead to the failure of expensive electronic control units.

Common mistakes during repairs

Owners Nissan Terrano They often make typical mistakes when trying to fix a problem on their own. One of the most common is the use of “bugs” instead of fuses. This is extremely dangerous, since the “bug” will not burn out if overloaded, which can lead to a fire in the wiring.

Another mistake is trying to replace a fuse without checking the cause of the blown. If you simply install a new element without eliminating the short circuit, it will burn out again. This could cause you to damage the seat in the fuse box, requiring a more expensive repair.

Also, do not ignore vehicle warnings. If the electrical fault light on your dashboard comes on, it may be due to problems in the cigarette lighter circuit. In this case, it is better to turn to professionals.

• ❌ Do not use wire or foil instead of a fuse.
• ❌ Do not ignore the burning smell or smoke from the fuse box.
• ❌ Do not leave a faulty chain unattended for long.

Remember that a vehicle's electrical system is a complex and interconnected network. Any intervention must be justified and carried out in compliance with all safety regulations.

FAQ: Frequently asked questions

Where is the cigarette lighter fuse on Nissan Terrano 3?

It is located in the interior fuse box, which is located on the driver's side of the dashboard. Typically this is an element marked F21 or F23, rated 20A.

What should I do if the new fuse burns out immediately?

This indicates a short circuit in the circuit. It is necessary to check the cigarette lighter connector for shorted contacts and inspect the wiring for damage.

Can I use a higher rated fuse?

Absolutely not. Using a higher rated fuse (for example, 30A instead of 20A) may cause the wiring to melt and cause the vehicle to catch fire.

How to check a fuse without a multimeter?

Visually inspect the element through the transparent housing. A blown fuse has a broken metal bridge or blackened glass.

Is it possible to drive a car without a cigarette lighter fuse?

Technically you can, but it is not recommended to leave the nest open as moisture or debris may get in. It is better to install a plug or a new fuse.