Fuses and relays VAZ 2112. Location. Description.

Location

The relay and fuse mounting block is located on the left side of the steering column in the instrument panel.

Types of mounting blocks

Block 2110-3722010

Block 2110-3722010-01

Block 2110-3722010-08

Reasons for premature failure of fuses

• A natural factor is the duration of operation without intermediate prevention;
• Ingress of moisture, formation of condensation, oxidation of terminals, drying out of the insulating layer, open circuit of the electrical supply;
• Mechanical damage, accident, impact, collision;
• Damage to the car fender, windshield, which contributed to damage to the mounting block;
• Short circuit in the electrical supply circuit;
• Exposure to ultraviolet rays.

If after replacing the modules the equipment does not work, then the power supply circuit line is most likely damaged. In the worst case scenario, part failure. Carefully inspect the wiring sections from the battery, generator, starter to the relay switch.

The operating instructions for the technical means indicate the interval before replacing the modules of the mounting block is 40,000 km. In practice, the resource is 5 – 7 thousand km longer.

To prevent premature wear of modules, systematically check the condition of the wiring insulation, the quality of fixation of the terminals, and remove oxidation with fine sandpaper.

As consumables, purchase original domestically produced parts. Check the catalog numbers with the data specified in the instruction manual. Imported analogues are comparable in quality to the Russian manufacturer, but the price is twice as expensive

Circuit breakers

F1 (5A)

• License plate lights
• Indicator lamp for turning on side lighting
• Trunk light
• Instrument lighting lamps
• Left side marker lamps

F2 (7.5A)

• Left headlight (low beam)

F3 (10A)

• Left headlight (high beam)

F4 (10A)

• Right fog lamp

F5 (30A)

• Door window motors

F6 (15A)

• Socket for portable lamp

F7 (20A)

• Engine Cooling Fan Motor / Horn

F8 (20A)

• Rear window heating element and heating switch contacts)

F9 (20A)

• Recirculation valve
• Window washer motor
• Rear window wiper motor
• Windshield wiper motor
• Headlight cleaner motor

F10 (20A)

• Spare

F11 (5A)

• Starboard side marker lamps

F12 (7.5A)

• Right headlight (low beam)

F13 (10A)

• Right headlight (high beam)
• Indicator lamp for high beam headlights

F14 (10A)

• Left fog lamp

F15 (20A)

• Electric seat heating
• Trunk lock lock

F16 (10A)

• Relay-breaker for direction indicators and hazard warning lights (in hazard warning mode)
• Hazard warning lamp

F17 (7.5A)

• Tail lights (brake lights)
• Body interior light
• Individual backlight lamp
• Ignition switch illumination lamp
• Clock (trip computer)

F18 (25A)

• Glove compartment lamp
• Heater controller
• Cigarette lighter

F19 (10A)

• Door locking
• Rear lights (reversing lights)
• Relay for monitoring the health of brake light and side light lamps
• Direction indicators with warning lamps
• Generator field winding
• On-board control system display unit
• Instrument cluster
• Clock (trip computer)

F20 (7.5A)

• Rear fog lamps

F21

• Spare

F22

• Spare

F23

• Spare

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• K1 – lamp health monitoring relay (contact jumpers are shown inside, which are installed instead of the relay);
• K2 – windshield wiper relay;
• K3 – relay-interrupter for direction indicators and hazard warning lights;
• K4 – headlight low beam relay;
• K5 – headlight high beam relay;
• K6 – additional relay;
• K7 – relay for turning on the heated rear window;
• K8 – backup relay (not installed on vehicles of the VAZ-2110 family);

Relay

K1

• Lamp integrity monitoring relay (4412.3747 / 2110-3747410)

K2

• Windshield wiper relay breaker (524.3747 / 2110-3747710)

K3

• Relay-breaker for direction indicators and hazard warning lights (492.3747 / 2108-3747010-02)

K4

• Relay for low beam headlights (113.3747 / 2105-3747210-10)

K5

• Headlight high beam relay (113.3747 / 2105-3747210-10)

K6

• Additional relay (71.3747-01 / 2110-3747310-01)

K7

• Relay for turning on the heated rear window (113.3747 / 2105-3747210-10)

K8

• Rear fog lamp relay (113.3747 / 2105-3747210-10)

What are the VAZ 2110 fuse box relays responsible for?

K1 – relay for monitoring the health of light bulbs; K2 – front wiper relay; K3 – repeater and alarm relay; K4 – low beam relay; K5 – high beam relay; K6 – additional relay; K7 – relay for turning on the heated rear window; K8 – backup relay (not installed on 110 series vehicles);

F1-F20 in the diagram are fuses. The circuits in the car are protected by fuses based on a certain rated current (in A). The battery charging circuit, generator circuit, ignition and engine starting are exceptions.

To replace a faulty fuse, first find the one that has blown, then eliminate the reason why it was damaged and then install a new one. Below is a list of fuses and information on each one.

* Never replace fuses with jumpers, this can lead to failure of various components and elements, including failure of the wiring tracks in the fuse box and even a car fire.

Additional fuses and relays

Location

Additional fuses and relays are installed behind the side trim of the console, secured with two screws, on the right side of the instrument panel.

Circuit breakers

1 (15A)

• Ignition module
• Controller

2 (15A)

• Canister purge valve
• Vehicle speed sensor
• Oxygen sensor (heating)
• Air flow sensor

3 (15A)

• Fuel pump relay
• Fuel pump
• Injectors.

Additional block

It is located under the center console and is covered with a lid. One part is accessible from the right side.

Designation

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1. 15A - Ignition module, controller
2. 15A - Canister purge valve, vehicle speed sensor, oxygen concentration sensor (heating), air flow sensor
3. 15A - fuel pump, fuel pump fuse, injectors
4. Electric fan relay
5. Fuel pump relay
6. Main relay (ignition relay)

The other part is on the left side of the console:

Decoding

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1. Central locking control unit
2. Immobilizer block
3. Relay for turning on rear fog lights.

On our channel we also prepared a video on this publication. Watch and subscribe.

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Do you know how to make the material better? Write in the comments.

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Scheme on ten

The fuse box diagram for a VAZ 2110 with an 8- and 16-valve injector is identical. The descriptions below will be relevant for owners of both engine types.

Main MB

First, it is worth considering the area with the VAZ 2110 relay. In the diagram they are indicated by the letter “K”:

1. Regulates the operation of all lamps.
2. Controls the electric windshield wiper.
3. Special purpose device. Controls the operation of lamps when the emergency alarm system is turned on.
4. Low beam switch.
5. High beam control.
6. A backup device required to connect additional devices.
7. Electric heated rear window.

Under the relay part there is a battery of protection, where each is responsible for a specific section of the circuit. In general, you can understand their designations using pictograms.

The safety battery is designated by the letter "F":

1. Responsible for the lighting set: number, dimensions on the dashboard, left clearance, trunk.
2. Near lighting.
3. Distant lighting.
4. Right fog lights.
5. Electric windows.
6. Fuse for cigarette lighter and portable lamp.
7. Radiator cooling and horn.
8. Heated glass.
9. Cleaning and washing system.
10. Spare.
11. Right side lights.
12. Low beams of the right headlight.
13. Far right headlights.
14. Left fog light.
15. Heated seats.
16. Hazard warning lights and turn signals.
17. Brake light protection, rear lock and interior lighting.
18. Another 1 fuse for the cigarette lighter for the VAZ 2110, for the glove box and heater lights.
19. Rear lights, as well as monitoring the performance of the brake light.
20. Rear fog lights.

The MB also contains numberings F21, 22 and 23. Moreover, they are located in the relay battery. They are reserve and do not participate in the main work.

As you can see, almost all electrical circuits are protected by a specific safety device. They are not installed only in the battery charging system (the battery and charging have their own protection). Each of them has its own rated current, as can be seen in the photo above.

In case of necessary repairs, first check the protection battery. For example, the right fog lights burned out, and replacing the light bulb does not help. In this case, it is enough to find the number in the list (in this case, 4) and call it. If it is “dead”, all that remains is to replace it and check its functionality again.

Please note that they are all fusible, that is, if there is an overcurrent they melt and break the circuit. Replacing them with any others is strictly prohibited. As well as installing protection with a different ampere limitation or changing the location of the fuses.

First additional MB

Directly behind the main MB there is an additional one. There are only 3 safety and relay devices installed there, located next to each other.

The relay and fuse locations are as follows (from left to right):

1. The 1st controls the ignition and control module of the car.
2. The 2nd serves air flow, heating and speed sensors.
3. The 3rd fuse protects the fuel pump on the VAZ 2110. By the way, it is this that is often responsible for fuel failure. If it breaks, check it first.

The relay part has the following purpose:

1. Relay number 4 controls fan switching.
2. Number 5 is the fuel pump.
3. Relay 6 controls the ignition system.

MB types

It is worth noting that the pinout of fuses for the VAZ “Ten” is somewhat different, depending on the revision. The location of the backup protection relay varies greatly.

Version 3722010

Version 3722010 01

Version 3722010 08

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How are the blocks separated in the machine?

The main type of block is placed in the most convenient place for the driver. In this version of the VAZ it is located on the left side of the body directly at the steering wheel. Easy access to the unit is provided using a built-in button located next to the car's headlight control.

2 backup units with relays are located separately in the right and central parts of the console just behind the dashboard. One of the fuses shown below in the diagram will be located at a distance from the rest of the list - it can be found in a special compartment behind the main fuse block, next to the mounting block. To timely repair electrical equipment on a VAZ-2110, you need to learn how to quickly determine the location of a blown fuse, and also know which elements of the car its failure will affect.

Advice: very often one burnt valve can lead to replacing the vacuum booster on a VAZ-2110. That is why it is important to check not only the general condition of the fuse, but also the parts that interact with it, for example, the injector.

Pinout of mounting block 2108

Here is a new type mounting block. The old-style block generally has the same circuit, but some contacts (less than 5%) may not match.

Schematic electrical diagram of the LADA Samara mounting block (VAZ-21099 with VAZ-2114 panel).

Numbering of terminals in connecting blocks, color of wires and electrical circuits connected to them.

Useful: Micro USB connector pinout