Nissan Almera 2014 (body G15) is a popular sedan with a simple but reliable electrical circuit. However, even in such a car, fuses and relays fail over time, resulting in failure of headlights, power windows, or even the inability to start the engine. In this article you will find exact fuse layout in the mounting block, their purpose, as well as practical advice on diagnostics and replacement.
Feature Almera G15 - division of fuses into two main blocks: salon (under the torpedo on the left) and engine compartment (near the battery). However, many owners confuse them with relays, which are similar in appearance but perform different functions. We will look at how to distinguish a fuse from a relay, what tools are needed for replacement, and what to do if the problem remains after installing a new fuse.
Where are the fuses located in Nissan Almera 2014
B Nissan Almera G15 2014 fuses and relays are distributed in three main zones:
- 🔧 Cabin mounting block — located under the instrument panel, to the left of the steering column. To gain access, you need to open the cover by prying it off with a flat-head screwdriver or your fingers.
- 🚗 Engine compartment fuse box — located next to the battery, in a plastic box with a lid. It is often confused with a relay block, but it is located there high power fuses (up to 100A), responsible for the starter, generator and cooling fan circuits.
- ⚡ Additional relays - some relays (for example,
fan relayorfuel pump relay) can be placed separately, under the hood or behind the glove compartment.
Important: depending on the configuration Almera (basic Comfort, Elegance or Tekna) The location and number of fuses may vary slightly. For example, in versions with climate control, a fuse is added to F19 (10A) for the heater control unit.
- In the salon block
- In the engine compartment
- I don't know where to look
- Never encountered
If this is your first time opening the mounting block, please pay attention to color coding of fuses - it is universal for everyone Nissan:
| Color | Denomination (A) | Application example in Almera 2014 |
|---|---|---|
| Orange | 5A | Dimensions lamps, instrument lighting |
| Red | 10A | Low beam, audio system, cigarette lighter |
| Blue | 15A | High beam, heated rear window |
| Yellow | 20A | Window lifters, heater fan |
| Green | 30A | ABS chains, electric power steering |
Diagram and decoding of the cabin unit fuses
Cabin mounting block Nissan Almera 2014 contains 38 fuses And 12 relays. Below is a current diagram with the purpose of each element (numbering goes from left to right, top to bottom):
The most problematic fuses in this block:
- 💡
F3 (10A)— cigarette lighter and 12V socket. It often burns out due to the use of powerful devices (vacuum cleaners, compressors). - 🚪
F10 (20A)— window lifters. If one power window stops working, also check the relay.K5. - 🔦
F17 (10A)— low beam (left headlight). When this fuse blows, the lamp often fails as well, so replace them in pairs. - 📻
F25 (10A)— audio system and navigation. If the radio does not turn on, also check the fuseF32 (7.5A)in the engine compartment.
To replace the fuse in the passenger compartment:
- Turn off the ignition and remove the key.
- Pry off the block cover with a screwdriver (it is secured with two latches).
- Find the faulty fuse (a blown fuse has a broken thread inside).
- Remove it with special tweezers (available in the unit) or pliers.
- Install a new fuse same denomination.
☑️ Preparing to replace the fuse
If the fuse blows again after replacement, this indicates short circuit in the chain. In this case, you need to check the wiring with a multimeter or contact service.
Underhood fuse box: what is located there
Engine compartment block Almera 2014 contains high power fuses (from 30A to 120A) and relays responsible for critical systems:
- 🔋
F1 (100A)— generator main fuse. When it burns out, the battery does not charge, and the lamp on the dashboard lights upCHARGE. - ⚡
F4 (50A)— electric power steering (EPS). If the fuse is blown, the steering wheel becomes stiff and an error appears on the panelEPS. - 🌀
F7 (30A)— radiator cooling fan. If it fails, the engine overheats. - 🚘
F10 (40A)— engine control unit (ECU). Burnout leads to failure to start or unstable operation of the motor.
Features of the engine compartment - The fuses here are non-standard sizes (type MAXI or MEGA). To replace them, ordinary tweezers will not work - you will need pliers or a special puller.
Warning: never replace fuses in the engine compartment with bugs (jumper wires). This can lead to a fire in the wiring, especially in the generator or starter circuits!
What to do if fuse F1 (100A) has blown?
This fuse protects the generator circuit. Its burnout is often associated with short circuit in the wiring or a malfunction of the generator itself. Before replacing, be sure to check:
- Voltage at the battery terminals (should be 13.8–14.4V with the engine running).
- Condition of the wires from the generator to the fuse box (are there any melts).
- The functionality of the diode bridge of the generator (check with a multimeter).
If the problem persists, the generator will need to be repaired or replaced.
How to check a fuse without a tester
If you don't have a multimeter at hand, check the fuse in Nissan Almera you can visually or using a simple light bulb:
- Visual inspection:
- Remove the fuse and look at the light.
- If the thread inside is broken or the body is melted, the fuse has burned out.
- Checking with a light bulb ("control" method):
- Take a 12V light bulb with two wires.
- Connect one wire to
mass(car body), the second - alternately to the fuse terminals. - If the light is on at both terminals, the fuse is good. If only on one - it burned out.
For accurate diagnosis you can use dialing multimeter:
1. Установите мультиметр в режим проверки цепи (значок диода или зуммер).2. Прикоснитесь щупами к выводам предохранителя.
3. Если сопротивление близко к 0 Ом — предохранитель исправен. Если бесконечность — сгорел.
⚠️ Attention: Do not test fuses for sparks by shorting them with metal objects. This can damage the vehicle's electronics, especially control units (ECU, BCM).
Typical fuse problems and their solutions
Owners Nissan Almera 2014 often encounter repeated blown fuses. Let's look at the most common cases and ways to eliminate them:
| Symptom | Probable Cause | Solution |
|---|---|---|
The cigarette lighter fuse has blown (F3) |
Short circuit in the outlet or connected device | Check the socket for foreign objects and clean the contacts. Do not use devices more powerful than 120W. |
The power window fuse has blown (F10) |
Worn guides or jammed mechanism | Lubricate the guides with silicone grease and check the integrity of the cables. |
Low beam fuse blows (F17/F18) |
Breakdown in the lamp or oxidation of the socket contacts | Replace the lamps with quality ones (for example, Philips X-treme Vision), clean the contacts. |
The cooling fan fuse has blown (F7) |
Fan jammed or temperature sensor malfunction | Check fan rotation manually, replace coolant temperature sensor. |
If the fuse blows immediately after replacement, this indicates short circuit in the chain. In this case:
- Disconnect all consumers in the problematic circuit (for example, if the cigarette lighter fuse is on, disconnect all devices).
- Check wiring for damaged insulation or melting.
- If you cannot find the cause yourself, contact an auto electrician for diagnostics with a multimeter.
The most common cause of repeated blown fuses is poor quality lamps or devicesconnected to the cigarette lighter. Always use certified accessories with overload protection.
Relay in Nissan Almera 2014: purpose and verification
Unlike fuses, relay in Almera are responsible for switching powerful circuits (for example, a starter, fan or headlights). There are 12 relays in the cabin unit, the most important of which are:
- 🔑
K1— starter relay. If it malfunctions, the engine will not start (clicks, but does not turn). - 💨
K3— cooling fan relay. If it doesn't work, the engine overheats. - 🔦
K7— low beam relay. If it fails, both headlights do not work. - 🚪
K5— power window relay. If it burns out, all the windows do not work.
There are two ways to check the relay:
- Replacing with a known good one (for example, swap with horn relay
K12, if it is the same type). - Testing with a multimeter:
- Set the multimeter to diode test mode.
- Connect the probes to the terminals
85And86(relay coil). The resistance should be 50–120 ohms. - Apply 12V to the terminals
85And86- there should be a click.
⚠️ Attention: Starter relay (K1) and fuel pump relay (K2) often fail due to contact oxidation. Before replacing, clean the terminals with fine sandpaper or a special spray (for example, CRC Contact Cleaner).
What to do if the fuse is good, but the device does not work
If the fuse is intact, but, for example, the headlights or power windows do not work, the problem may lie in:
- 🔌 Oxidized contacts — check the connectors on the fuse and the device (for example, lamp socket).
- 🔧 Faulty relay - even if the fuse is good, the relay may not operate.
- 📉 Broken wiring — check the circuit with a multimeter in continuity mode.
- 🖥️ Faulty control unit — for example, if all the windows do not work, the problem may be in the comfort unit (
BCM).
For diagnostics:
- Check fuse output voltage (should be 12V when ignition is on).
- If there is no voltage, the problem is in the circuit to the fuse (wiring or control unit).
- If there is voltage, but the device does not work, check the circuit after the fuse (relay, wiring, device itself).
Example: if it doesn't work heated rear window, and the fuse F22 (20A) OK:
1. Проверьте напряжение на выводах предохранителя (должно быть 12В).2. Проверьте реле обогрева (K8).
3. Прозвоните провода от предохранителя до контактов на стекле.
4. Проверьте целостность нитей обогрева (визуально или тестером).
FAQ: Frequently asked questions about Nissan Almera 2014 fuses
Is it possible to install a fuse of a higher rating if it constantly blows?
No! Installing a fuse with a higher rating (for example, 20A instead of 10A) may result in wiring fire. If a fuse blows, you need to look for the cause (short circuit or faulty consumer), and not increase its power.
Where can I find a fuse diagram for my Almera equipment?
The fuse diagram is usually shown on back side of the mounting block cover. If it is not there, download the instruction manual for your equipment (Comfort, Elegance or Tekna) on the website Nissan Russia.
Which fuse is responsible for the alarm in Almera 2014?
The fuse is responsible for the standard alarm F28 (10A) in the salon block. If the alarm does not work, also check the relay K12 and the integrity of the wiring to the central locking.
What should I do if the radio stops working after replacing the fuse?
Probably a fuse has blown F25 (10A) or F32 (7.5A) in the engine compartment. Also check:
- Connection of the radio connectors (the contact may have come loose).
- Radio settings (sometimes after turning off the power it requires entering a code).
Why do power window fuses blow?
Main reasons:
- Jamming of the mechanism (cable or guides).
- Wear of window lift motors (increased current).
- Moisture getting into connectors (oxidation of contacts).
Solution: lubricate the mechanism, check the motors, clean the contacts.