Owners Nissan Almera G15 (2012–2018 model years) sooner or later you have to deal with problems with electrical equipment - from non-working headlights to failure of power windows. In 90% of cases, a blown fuse is to blame. But how to find it among dozens of similar elements? Where is the mounting block located? And how to correctly decipher the purpose of each fuse?
In this article you will find detailed fuse box diagram indicating the current strength, protected circuits and exact location. We will disassemble not only the standard mounting block in the cabin, but also additional relays under the hood. We will also explain how to check a fuse without a tester and what mistakes are most often made when replacing.
The material is based on official manuals Nissan and the experience of auto electricians specializing in Japanese cars. All diagrams are relevant for Almera G15 with gasoline engines HR16DE And K4M, including restyled versions 2015–2018.
Where is the fuse box located in Nissan Almera G15
B Nissan Almera G15 There are two main locations for fuses and relays:
- 🚗 Main mounting block in the cabin — located to the left of the steering column, behind the plastic cover. To gain access, just pull the cover towards you (it is secured with latches).
- 🔧 Block under the hood — located next to the battery, in a plastic box with a lid. High power fuses are located here (for example, for the cooling fan or injection system).
Important: on some versions Almera G15 (for example, for the Russian market) the unit under the hood can be hidden under the air filter. In this case, you will need to remove the filter cover to get to the fuses.
It is also worth considering that on vehicles with automatic transmission in the interior mounting block there may be additional relays responsible for operation Automatic transmission. We will consider their location and purpose separately.
- In the salon block
- In the engine compartment
- Haven't encountered a problem
- I find it difficult to answer
Diagram and decoding of fuses in the cabin
Main mounting block Nissan Almera G15 contains 40 fuses And 12 relays. Each fuse is marked with a letter F and number (for example, F1, F2). Below is a complete table with a breakdown:
| Number | Current (A) | Purpose | Notes |
|---|---|---|---|
F1 |
10 | Engine management system (ECU) |
Errors may occur during burnout P0600–P0606 |
F10 |
15 | Cigarette lighter, 12V socket | Often burns out when using powerful devices (for example, compressors) |
F20 |
10 | Control unit ABS |
If there is a malfunction, the lamp lights up ABS on the dashboard |
F30 |
20 | Window lifters (all 4 doors) | If it is burned out, the window regulators stop working at the same time. |
F40 |
15 | Audio system, navigation | Replacing the fuse may reset the radio memory. |
An important nuance: fuses F15 and F16 (responsible for interior lighting and instrument lighting) are often confused with each other due to their close location. Their burnout causes the dashboard to go dark when the headlights are turned on.
The complete diagram with photographs of the block can be downloaded from link (PDF, 1.2 MB). Please note: on vehicles with climate control there is an additional fuse in the block F35 (10A), responsible for the operation of the damper servos.
☑️ Checking fuses in the cabin
Underhood fuse box: purpose and features
In the engine compartment Nissan Almera G15 there is a block with high power fuses (from 30 to 100 A) and relays. He is responsible for critical systems:
- ⚡ Main fuse (
100A) - protects the generator and battery circuit. When it burns out, the car is completely de-energized. - 🔥 Cooling fan fuse (
40A) - if it burns out, the engine overheats because the fan does not turn on. - 💡 Starter relay - if there is a malfunction, the car does not start (clicks are heard, but the starter does not turn).
A special feature of the engine compartment is its fuses. do not have standard legslike in a salon. Here are used fuse links or megafuses (pictured below). To replace them you will need special tweezers or pliers.
Warning: never replace megafuses with “bugs” (homemade jumpers). This may lead to fire in the engine compartment due to a short circuit in the high current circuits.
What to do if the main 100A fuse has blown?
If the main fuse (100A) is blown, first check the generator circuit for a short circuit. Most often, the problem lies in a damaged positive wire from the generator to the battery or in the generator itself. Replace the fuse only after eliminating the cause of the short circuit!
How to check a fuse without a tester
Not everyone has a multimeter at hand, but you can check the fuse visually or using simple improvised means. Here are 3 reliable ways:
- Visual inspection. Remove the fuse and look at the light: if the metal thread inside is torn or melted, the fuse has burned out. Look for corrosion or blackening of the contacts.
- Checking for spark. Insert the fuse into its socket and turn on the circuit it protects (such as headlights). If a spark occurs when the fuse contacts touch the terminals, the circuit is operational and the fuse has blown.
- Replace with a known good one. Take a fuse with the same rating from another circuit (for example, from the cigarette lighter) and install it in the place of the one being tested. If the device works, the problem is in the fuse.
⚠️ Attention: If the fuse burns out again after replacement, don't increase its value (for example, instead of 10A, do not use 15A). This can lead to melted wiring or failure of electronic components. In this case, you need to look for short circuit in the chain.
For accurate diagnosis you can use test lamp (control). Connect it to the vehicle ground and touch the fuse contacts one by one. If the lamp lights up on both contacts, the fuse is good. If only on one - it burned out.
If you don't have a spare fuse on hand, you can temporarily use a piece of chocolate foil or a pack of cigarettes, folded in several layers. But remember: this is an emergency measure, and the fuse must be replaced with a standard one as soon as possible!
Typical fuse problems and their solutions
Owners Nissan Almera G15 often encounter typical faults related to fuses. Here are the most common cases and how to resolve them:
| Symptom | Likely culprit | Solution |
|---|---|---|
| Power windows don't work | fuse F30 (20A) or relay K7 |
Check the fuse, clean the relay contacts from oxidation |
| Headlights do not turn on (low/high beam) | Fuses F11 (10A) And F12 (10A), relay K3 |
Replace fuses, check bulbs and wiring to headlights |
| Cigarette lighter doesn't work | fuse F10 (15A) or a break in the socket |
Check the fuse, disassemble the socket and clean the contacts |
The lamp is on ABSbut the brakes work |
fuse F20 (10A) or sensor ABS |
Replace the fuse, check the wheel sensors for contamination |
One of the most insidious problems is intermittent fuse blowing F1 (10A)responsible for ECU. This may happen due to:
- 🔌 Short circuit in the wiring harness under the dashboard;
- 💧 Moisture entering the engine control unit;
- ⚡ Generator malfunction (battery overcharging).
If the fuse F1 burns out regularly, it is necessary to carry out power circuit diagnostics ECU using a multimeter. Measure the voltage at the contacts of the unit with the ignition on - it should be within the range 12–14.5 V.
If a fuse blows immediately after replacement, never replace it with a bug or a higher-rated fuse. This can damage the electronic control unit (ECU), the repair of which will cost 15–30 thousand rubles.
How to properly replace a fuse: step-by-step instructions
Replacing the fuse in Nissan Almera G15 - a simple procedure, but requiring accuracy. Follow this algorithm to avoid errors:
- Turn off the ignition. Remove the key from the lock and make sure that all electrical consumers (headlights, radio) are turned off.
- Remove the mounting block cover. In the cabin, pull the cover towards you (it is secured with latches). In the engine compartment, press out the latches and lift the cover up.
- Find the faulty fuse. Use the diagram from this article or the markings on the back of the unit cover.
- Remove the fuse. To do this, use special tweezers (usually attached to the block cover) or thin-nose pliers.
- Install a new fuse. He must be same denomination (current strength) as the burnt one. The color of the fuse body corresponds to its rating (for example, red - 10A, blue - 15A).
- Check the operation of the circuit. Turn the ignition on and activate the device that was not working (such as the power window or headlights).
⚠️ Attention: If after replacement the fuse burns out again, do not repeat the procedure. This indicates short circuit in the chain. In this case it is necessary:
- Check the wiring for insulation damage;
- Inspect connectors for oxidation or corrosion;
- Diagnose the device that protects this fuse (for example, a window lift motor).
To find a short circuit, you can use a multimeter in calls. Turn off the fuse and disconnect the consumers in the circuit one by one, checking for a short circuit between the positive wire and ground.
Frequently asked questions (FAQ)
Is it possible to install a fuse of a higher rating if it constantly burns out?
No, this is strictly prohibited! The fuse is designed to carry a certain current, and if it blows, there is a problem in the circuit (short circuit or overload). Installing a fuse with a larger rating may result in melted wiring or failure of electronic components. For example, if you put 15A instead of 10A, the engine control unit may burn out during a short circuit (ECU).
Where to buy fuses for Nissan Almera G15?
Fuses of standard ratings (5A, 10A, 15A, 20A) are sold in any auto shop or on the market. For Almera G15 Suitable fuses: ATO/ATC (knife). They can also be ordered online (for example, at AliExpress or in online spare parts stores). The cost of one fuse is from 10 to 50 rubles. The engine compartment may require megafuses (for example, 80A or 100A), it is better to buy them in specialized stores.
Which fuse is responsible for the radio in Almera G15?
The fuse is responsible for the operation of the audio system (radio, speakers) F40 (15A) in the interior mounting block. If the radio does not turn on, also check the fuse F39 (10A), which protects the control circuit (CAN bus). Please note: when replacing the fuse F40 The radio settings (frequency of stations, equalizer) may be reset.
Why does the cigarette lighter fuse blow if I haven't connected anything?
There are several possible reasons:
- In the cigarette lighter socket short circuit (for example, due to contact with metal objects or moisture).
- The insulation of the positive wire going to the cigarette lighter is damaged (often chafed under the dashboard).
- Faulty cigarette lighter relay (
K10), which is in the same block.
To diagnose the problem, unplug the cigarette lighter and test the circuit with a multimeter. If the fuse does not blow, the problem is in the outlet. If it burns out, look for a short circuit in the wiring.
Can I repair the fuse box myself if the contacts are melted?
If the contacts in the mounting block are melted or oxidized, you can try to restore them yourself:
- Disconnect the battery (remove the negative terminal).
- Remove the fuse box (it is secured with latches or bolts).
- Clean your contacts with fine sandpaper or special liquid for cleaning contacts (For example, Kontakt 60).
- If the contacts are severely damaged, they can be bent with a thin screwdriver or soldering iron (carefully!).
- After cleaning, apply to contacts conductive lubricant (For example, Liqui Moly Kupfer-Spray).
If the unit is severely damaged (for example, plastic has melted), it is better to replace it entirely. The cost of a new mounting block for Almera G15 - about 3–5 thousand rubles.