The reason for the failure of the emergency lights on the VAZ 21099

Fuse diagram

Its principles have not changed significantly since the advent of the B2 generation in 1987. An explanation of the circuit translated into Russian is presented in the table below, as well as a list of relays and the order of their arrangement, which can be used as a printout if necessary.

The main block of the engine compartment is equipped with 11 relays, the purpose of some of which depends on whether a diesel or gasoline engine is installed on the car:

• R1 - foglights and rear lights. Models without fog lights have a jumper;
• R2 — radiator blower fan, if air conditioning is not installed;
• R3 — fans on;
• R4 — headlight washer;
• R5 - X-contact of the unloading relay (indicated by the number 214 in the latest generations);
• R6 — cabin fans (manually controlled air conditioning), air conditioning fan for speed at the 2nd stage (automatically controlled air conditioning);
• R7 - sound signal;
• R8 - sound alarm relay for anti-theft system (cars with manual transmission). Cars without anti-theft devices have a jumper installed, while cars equipped with automatic transmissions have a free slot;
• R9 — interval mode of glass cleaner;
• R10 — fuel pump, single injection;
• R11 - radiator fan to turn on the 1st stage of rotation /

In the Audi 80 B4 with a diesel engine, 2 and 3 relays are in reserve, and R10 is responsible for the preheating plugs. You also need to take into account that in the B4 generation the relay, designated by the number 208, is responsible for the fuel pump, while in the B3 – 215.

The additional relay block, which is located under the steering wheel in the car interior, has the following description, in general terms, preserved from the birth of the B2 and especially B3 generations in 1989.

There are 18 relays in total, their designations are deciphered:

1. ABS systems.
2. Seat belt warning light.
3. Interior lighting control unit.
4. Air conditioner clutch relay unit.
5. Rear window wiper and washer system.
6. Oil pressure monitoring devices, front lighting control unit, the breakdown of which can be found out if this relay clicks.
7. Not used.
8. Not used.
9. Automatic gear shift lock (only for vehicles with automatic transmission).
10. —
11. —
12. Heated seats.
13. Heated driver's seat.
14. Sunroof on the car roof.
15. Sunroof ECU and power door windows.
16. Likewise.
17. Anti-theft alarm warning lights.
18. Power door windows, power sunroof, power seat circuit breaker.

Turn signal fuses and relays

Located in the engine compartment block number 15 with a power of 25 Amps. There is no turn signal relay in the factory configuration; the connection is carried out by the car owner independently. Its absence or breakdown is indicated by a buzzing sound.

Cigarette lighter fuse

Since 1988, in all generations of the Audi 80, it is located in the block under the hood at number 4 and has a power of 15 A.

Cooling Fan

Elements 17 and 20 of the engine compartment block correspond. The second protects the switching system. The power of both is 30 A.

Low beam

The fuses in the Audi 80 are numbered 10 and 11, with a power of 10 Amperes. They are located in the block under the hood.

Power window fuses and relays

They are located inside the car. ESP relays are numbered 15 and 16.

Luke

In the cabin there are four relays of the interior engine unit - 14, 15, 16 and 18.

Instrument lighting

It is located in the engine compartment block number 14. Its power is 5 Amperes.

Wipers

There are no fuses.

Stove

There are no such fusible elements in the factory configuration.

Signal fuses and relays

The brake light insert for the Audi 80 has number 29, a power of 10 Amperes and is located in the engine compartment block.

Radio tape recorder

The fusible element is not included in the factory configuration.

High beam

The 8th and 9th elements of the main block of the engine compartment, each with a power of 10 Amperes, are responsible for it.

Dashboard

Its operation is protected by fuse No. 12 for 15 Amps of the main unit.

Reverse

Are protected by fuse 12.

central locking

It is protected by 10 Amp element #19 in the main unit.

Generator fuse and relay

The current regulator in the Audi 80 does not have its own inserts as standard, but this is not an expensive item and it is expected that car owners will install it themselves.

Dimensions

Protection is provided by 5 A elements 6 and 7, which are located in the main block of the engine compartment.

Speedometer

Does not have its own fuse as standard.

Washer

A fusible element responsible for protecting the windshield wiper No. 15 with a power of 15 A. 5 relays of the additional unit are responsible for the same element.

Audi 80 fuel pump relay: where is it located

Fuel pump insert No. 13 and power 15 A, located in the main block. There is also a relay number 10. If the latter breaks down, you need to check which engine is installed in the Audi - AVK or AVT, since this determines which device you need to choose.

Where is the starter relay located?

For all types of motor, including ABK 2 0, it is installed additionally. Its price is not high.

Glow plugs

This relay is present only in cars with a diesel engine, where it is installed at number 10 in the cabin block.

Emergency crew

This relay is not installed at the factory.

Unloading relay for headlights

Relay No. 5 of the cabin unit is responsible for unloading in the Audi 80.

Oil pressure control relay

Responsible for No. 6 in the additional block.

Charging relay

For Audio 80 with a diesel engine, this is element No. 5 of the additional unit.

Ignition

Audio 80 is not included in the factory configuration.

Fuses, relays, their location and purpose

The fuses can be removed and checked visually. If you are unable to remove the fuse by hand, you can use special tweezers. A blown fuse can be easily identified by the damaged element. You can also test the fuse for continuity using an ohmmeter or an open circuit tester—if there is no continuity, the fuse is blown. Each fuse is marked with a rating. Please note that the fuse can only be replaced with a fuse of the same rating. Spare fuses are located in the fuse box. If you use a spare fuse, always replace it as soon as possible so that you always have spare fuses of different ratings in the box.

Warning! Never install a fuse of a higher rating or connect wire terminals with improvised means instead of using a fuse, as this may cause damage to the electrical circuit and a fire.

If the fuse is blown, be sure to check the electrical circuit for signs of a short circuit. Check the system for exposed wires or wires with frayed, melted, or burnt insulation. If you replace a fuse before determining what caused it, the new fuse will also blow.

Sometimes a fuse may blow or cause an electrical circuit to open for no apparent reason.
Corrosion of the fuse and fuse block terminals can cause damage to the fuse contacts. If this occurs, remove any traces of corrosion using a wire brush or sandpaper, then spray the fuse terminals with electrical contact cleaner. Fuses, their numbers and assignments located in the passenger compartment

same in the picture

1st option for the location of fuses in the engine compartment

table 10.2

also in the picture is the 2nd location option

also in the picture

RELAY:

same in the picture
Replacing fuses

How to remove the fuse box

Carry out the procedure with great care so as not to damage anything. For this:

• lift the hood lid;
• disconnect the negative terminal of the battery;
• the interior unit is hidden by a lid with handles that pull towards you;
• unscrew the screws holding the mounting frame;
• under the frame, unscrew the 4 screws holding the block itself;
• Unscrew the screws and remove the block.