Almera G15 is provided with mounting blocks that include fuses and relays. Let's look at where they are located and what each element is responsible for.
Plug fuses
Fuse box under the hood of Almera G15
Fuse box under the hood
In the engine compartment, the Almera G15 mounting block is located on the left side, directly behind the battery. It contains fuses to protect the following sections of the electrical circuit:
- F1 – not used;
- F2 – power unit ECU, main relay coil of the engine control system (5A);
F3 – ignition coils, fuel pump, power unit control system (30A);
- F4 – radiator fan, for Almera G15 without air conditioning (30A);
- F5 – air conditioner and its cooling fan with low and high speed (40A);
- F6, F7 – anti-lock braking system (25 and 50A);
- F8 – equipment receiving power through the ignition switch and the left steering wheel switch (60A);
- F9 – interior mounting block (60A).
Fuse diagram in the block under the hood
Relays are also used:
- K1 – accelerated operation mode of the air conditioner cooling fan;
- K2 – air conditioner;
- K3 – slow operation of the cooling fan of the air conditioner or engine radiator for the Almera G15 without air conditioning;
- K4 – ignition coils, fuel pump;
- K5 – power unit control programs;
- K6 – cigarette lighter;
- K7 – fog light;
- K8 – heating complex.
Blown and good fuses
Main causes of burnout
To avoid having to change such “defenders” too often in the future, it is best to know the reasons for their breakdown (otherwise the new one will not “live” for long either). The most common include:
- frequent contact of the electrical circuit with moisture (and subsequent oxidation);
- poor contact of the protection element itself with the terminals (defective product);
- failure or break of the wire (you will need to resolder the broken section).
The only thing I would like to warn against is installing amateur elements instead of normal factory relays (usually paper clips or wire). Such “know-how” can negatively affect the operation of the entire electrical circuit and even lead to a fire in the fuel pump.
Previous article: Electrical equipment Nissan Almera classic, n16, n15 Next article: Replacing the cigarette lighter Nissan Almera classic, n16, n15
Fuse block in the interior of Almera G15
On the inside of the cover of the passenger compartment fuse box there are spare fusible links and pliers for removal.
In the interior of the Almera G15, the mounting block is located behind a protective plastic casing at the end of the dashboard on the left. It most often uses fuse links with a nominal value of 10A: F3, F4, F7, F9-F12, F15, F18, F19, F21, F39 . Fuses are responsible for the operation of the following elements:
Location of the fuse box in the passenger compartment
- F1 – wipers, switching unit, heated rear window (20A);
- F2 – fuel pump and ignition coil relay, engine ECU, instrument panel (5A);
- F3 – brake lights;
- F4 – turn signals, switching unit, diagnostic connector, immobilizer;
- F5, F8, F22, F24, F25, F29, F30, F31 – not used;
- F6 – automatic transmission (5A);
- F7 – reversing lights;
- F9 – left low beam;
- F10 – right low beam;
- F11 – left high beam;
- F12 – right high beam;
- F13, F14 – electric lifts of front and rear windows (30A);
- F15 – anti-lock braking system;
- F16 – heating of the front row of seats (15A);
- F17 – signal (15A);
- F18 – license plate illumination, dimensions for the left front and rear headlights;
- F19 – illumination of the glove box and instrument panel, dimensions for the right front and rear headlights;
Fuses in the cabin block Almera G15
- F20 – rear fog lamp (7.5A);
- F21 – heated external mirrors;
- F23 – connector for connecting power to the trailer (20A);
- F26 – airbags (5A);
- F27 – windshield washer complex (20A);
- F28 – heated external and rear windows (15A);
- F32 – lighting in the cabin and luggage space, instrument panel, multimedia system (30A);
- F33 – turn signals, hazard warning lights, central locking, wiper speed control, connector for diagnosing the power unit (15A);
- F34 – switching unit, central locking (20A);
- F35 – front fog lights (15A);
- F36 – heating system fan (30A);
- F37 – electric regulator of the position of external mirrors (5A);
F38 – multimedia system, cigarette lighter (15A);
- F39 – heating fan relay.
How to determine a fault in a relay
The main sign of problems in the operation of the fuel pump is the failure of the pump, that is, it simply does not turn on. If the fuel pump on the Nissan Almera N16 does not turn on, then you should not immediately go for a new one; you should check the relay, which, most likely, is the main problem. You can check this assumption by replacing the relay with another one, which you don’t have to buy, since you can use what you already have.
We repeat, but this is important: if the fuel pump does not work, then you should check the relay, since in most cases this is where the whole problem lies.
Purpose, types and colors of electrical fuses
Almera G15 fuses are a protective element of various electrical equipment from the following phenomena:
- short circuits;
- current overloads.
Their circuit can be made in one, two or three blocks. Moreover, each of them is responsible for the operability of the equipment complex, and a separate element is responsible for the protection of a specific device.
The following types of fuses are distinguished:
Plug fuses
Plug-in - the most common, consist of two plugs, between which there is a fuse-link for a certain amount of current. It is closed with a plastic casing. When the maximum value of the current flowing through the insert is exceeded, it burns out.
Bimetallic - in the specified type of fuses, the fuse-link is replaced with bimetallic plates with silver-plated contacts that fit tightly to each other. If an abnormal mode occurs, the plates heat up and open. Their further contact will occur after the metal has cooled.
Plug and bimetallic fuses with spring
Spring bimetallic - the principle of operation is identical to the previous type. The difference is that the bimetallic plates do not return to their original position on their own. This is achieved by introducing an additional spring into the design, which holds the plate in the off position. To restore the electrical circuit, you will need to press a button that will release the spring.
Fuses are produced with different current ratings. At the same time, manufacturers give each denomination a specific color. In most cases, the following colors are used:
- black – 1A;
- gray – 2A;
- purple – 3A;
- brown-yellow – 5A;
- dark brown – 7.5A;
- red – 10A;
- blue – 15A;
- yellow – 20A;
- white – 25A;
- green – 30A;
- orange – 40A;
- blue - 60A;
- brown – 70A;
- light yellow – 80A;
- lilac – 100A.
Color shades may vary
What are the fuses for the Nissan Almera N16 - we are studying the question
It rained at night/morning. In general, I came to work. I pulled the key out of the lock - the car did not stall. Jammed it with transmission. With the key pulled out, the ignition is on, the instrument panel lights up, the indicator lights are on, and the immobilizer flashes quickly. I removed the block on the ignition switch. I reset the clamps. The tidy only goes out when you remove preheater No. 4 in the cabin. Started up after removing the terminals and pre. Left for work. Same crap again. In the center of Kyiv, I dismantled the floor of the cabin, the problem solved itself. And he took out all the previous ones, all the relyushki. The tidy goes out when the ignition relay No. 2 is removed. I made a video, I'll upload it right now. WTF. Who has any thoughts?
———- Message updated at 19:10 ———- Previous message was at 18:56 ———-
signaling is the dumbest panther. there are no bypasses
———- Message updated at 20:39 ———- Previous message was at 20:39 ———-
I removed the chip from the ignition switch. on the block of prevs on the block where the chip from the lock is plugged in there is 12v
———- Message updated at 20:40 ———- Previous message was at 20:39 ———-
rusli4, that’s where you pulled it out from, there are 2 ignition relays on the back side, I wrote it
The tidy goes out when the ignition relay No. 2 is removed. but without this you can’t bring the car
Another stupid question: haven’t you changed your windshield recently?
It rained at night/morning. Before the rain?
Look on the right, under the glove compartment. There is no water, there is the main relay https://www.almeraclassic.ru/showthread.php?6538-%CE%F8%E8%E1%EA%E8-%E4%E2%E8%E3 %E0%F2%E5%EB%FF&p=165319&highlight=%EE%F8%E8%E1%EA%E8+%E4%E2%E8%E3%E0%F2%E5 %EB%FF#post165319
I don’t have any more thoughts for now:ah:
Judging by the diagram, judging by the fact that removing the relay has no effect, but disconnecting the wire does, a parasitic electrical contact has appeared in the block under this relay. 6600
You can verify this version by removing the 15 A fuse (under-hood unit, IG COIL). There should be an effect of disconnecting the red-black wire. Conclusion - you need to clean the space under the shoe.
In general, I would start with Relay-Modul.
Explain where it is and what it looks like. Because what I found under the dashboard is an ordinary 4-pin relay
Judging by the diagram, judging by the fact that removing the relay has no effect, but disconnecting the wire does, a parasitic electrical contact has appeared in the block under this relay. 6600
You can verify this version by removing the 15 A fuse (under-hood unit, IG COIL). There should be an effect of disconnecting the red-black wire. Conclusion - you need to clean the space under the shoe. Removing the fuse only prevents the car from starting - the injectors are turned off. I couldn’t check how this affects the problem - today I plugged the cerno-red wire back in - the car behaves well. Apparently it dried out somewhere.
I checked the relay unit - there is no moisture, the contacts are perfect.
———- Message updated at 17:41 ———- Previous message was at 17:34 ———-
While I was writing the previous post, the alarm started screaming and the ignition turned on.
