Automotive fuses. Types, meaning. Signs that it's time to change them

This article shows the fuse box of cars of various brands. The fuse box diagram is presented for various cars. The location of the fuse box is shown. The decoding of the fuse box is presented in tabular form. The pinout of the fuse box of some machines is described in detail. The fuse box of several VAZ models is described.

Name of the fuse and relay box for the following vehicles:

• Fuse box UAZ Simbir 3162, 31602 Fuse box decoding
• Fuse box diagram for UAZ Simbir 3162, 31602

Fuse box UAZ Simbir 3162, 31602

Designation in the fuse box picture:

• K2 - windshield wiper relay;
• K3 — direction indicator stick;
• K4 — electric relay for low-beam headlights;
• K5 — switch for turning on high-beam headlamps;
• K6 - additional (unloading) switch;
• K7 - solenoid for turning on the rear window heating;
• K8 - electromagnet for turning on fog lamps;
• F1-F23 - fuses (see table)

Fuse block diagram:

The power unit is installed in the car interior, on the left, under the instrument panel, opposite the driver’s seat.

Healthy ! Crankshaft sensor

Decoding the fuse box UAZ Simbir 31602:

The main relay 90.3747-10 (RF) is located on the front panel, above the engine, next to the fuel pump relay.

The fuel pump solenoid type 90.3747-10 (RF) is installed on the bulkhead, above the engine, next to the main electromagnet KMPSUD and the intermediate starter switch (retractor solenoid).

The intermediate starter relay is installed on the front panel, above the engine, next to the main relay KMPSUD and the fuel pump relay.

The main solenoid circuit coming from the battery is protected from short circuits to ground by a 20 A harness fuse type 688670-7 (AMP) or 354.3722 (RF). At the same time, the KMPSUD ignition circuit is protected from short circuits to ground by a 10 A harness fusible plug of type 688670-5 (AMP) or 352.3722 (RF). The plugs are placed in blocks that are attached:

• 20A - to the main relay;
• 10A - to the electric fuel pump relay.

Healthy ! Camshaft sensor

Starter, ignition, rear fog lamp relay

In order to carry out quick checks and repairs, the ignition system relay is installed under the front dashboard of the car, behind the hood release handle. It is located just below the central dashboard. The module is closed with a plastic plug, which must be opened slightly to test for functionality.

Starter, ignition, rear fog lamp relay

Next to the indicated relay, there is a similar one for the rear fog lights and the starter.

The main task of the relay when igniting is to reduce the applied load to the contacts. When the engine starts, the relay turns off some electrical circuits in the vehicle system. The system is used not only in injection, but also in carburetor engines.

In the event of a malfunction or malfunction in the ignition system, it is necessary to monitor the operation of the relay. For this purpose, open the box and carefully remove the desired element. It is attached using contacts to special grooves. The first thing to do is look at the oxidation of the contacts, if necessary, clean them with a soft cloth or treat them with a special liquid.

To check functionality, you need to use a regular multimeter. We connect to incoming connections and check the numbers. If there is no short circuit when current is applied, it means the element is not working. Replacement is carried out in a similar manner. It is necessary to use a standard element with the number of amperes indicated on the housing.

Fuse box UAZ Patriot

Fuse box UAZ Patriot 316300 from 2005

• K2 — windshield wiper relay;
• K3 - turn signal interrupter relay;
• K4 - relay for low beam headlights;
• K5 - headlight high beam relay;
• K6 - additional (unloading) relay;
• K7 — relay for turning on the heated rear window;
• K8 - relay for turning on fog lights;
• F1-F23 - fuses (see table)

• K1 - starter relay;
• K2 — rear door windshield washer time relay;
• K3 - relay for the electric fan of the engine cooling system;
• K4 - sound signal relay;
• K5 - electric fuel pump relay;
• K6 - relay KMPSUD;
• F1-F5 - fuses (see table).

Decoding of the fuse box of UAZ Patriot 316300 from 2005:

Healthy ! temperature sensor

Fuse box UAZ Patriot 316300 from 2007

Fuse block diagram:

• K2 — windshield wiper relay;
• K3 - turn signal interrupter relay;
• K4 - relay for low beam headlights;
• K5 - headlight high beam relay;
• K6 - additional (unloading) relay;
• K7 — relay for turning on the heated rear window;
• K8 - relay for turning on fog lights;
• F1-F23 - fuses (see table)

• K1 - starter relay;
• K2 — rear door windshield washer time relay;
• K3 - sound signal relay;
• K4 - relay KMPSUD;
• K5 - electric fuel pump relay;
• K6 - electric fan relay;
• K7 - electric fan relay;
• F1-F10 - fuses (see table)

• K1 - relay for turning on the interior heater fan;
• K2 - recirculation damper relay 1;
• K3 - recirculation damper relay 2;
• K4 - compressor clutch relay;
• K5 - fan relay 1;
• K6 - fan relay 2;
• F1-F3 - fuses (see table)

Healthy ! Throttle sensor

Explanation of the fuse box:

Mounting fuse block UAZ Patriot 2022

Latest news about Lada Vesta Cross

Nowadays, AvtoVAZ produces cars of a completely different level of comfort and reliability, just like the Lada Vesta car model range: modern appearance of the sedan, a variety of body colors, a variety of configuration options, a thoughtful interior and modern electronics. If over the course of several years they have managed to get used to the sedan, then many people are looking forward to the Lada Vesta Cross model and are monitoring the emergence of new information.

Lada Vesta is equipped with many electrical appliances, each of which is vulnerable to voltage surges. To protect consumers, there is a fuse in the circuit of each of them, and if for some reason it blows, it will have to be replaced, otherwise the electrical appliance will not work. Just first you need to find the Lada Vesta fuse box.

VAZ 2114 fuse box

VAZ 2107 fuse box

Front fog lamp relay

Front fog lights are not standard equipment on the model and are equipped depending on the configuration. The relay itself (if there are fog lights) is located in the engine compartment on the left mudguard.

Front fog lamp relay

Important! To access the relay, you must remove the battery! Without performing this manipulation, it will be difficult to remove and check its functionality.

Replacing a faulty element is very simple. You need to take a Phillips screwdriver (with a short handle), unscrew the bolt securing the relay to the car body, and check the element for malfunction. If it fails, we buy a new one and put everything in the reverse order.

Mounting block of fuses and relays VAZ 2109

Removal and replacement process

Required tool:

• large and small plastic tweezers (located in the main interior mounting block) or pliers with thin jaws;
• screwdrivers - slotted, Phillips;
• 8mm wrench.

Under the hood

The procedure is as follows:

1. Immobilize the vehicle with the parking brake and turn off the ignition.
2. Open the hood.
3. Remove the cover from the desired unit by prying the plastic latches with a flat-head screwdriver.
4. Remove the broken element using pliers or tweezers. Large tweezers are for removing relays, small ones are for fuses.
5. Correct the problem if possible.
6. Install a new part and check the operation of the protected unit.
7. Reinstall the removed parts.