Hello everyone today I want to consider the fuse box of the old and new model on a VAZ 2109 car in the common people is just nine. If you have something out of order on the nine that works on electricity, then the first thing to do is check the mounting block. Or rather, the fuse may have blown out and should be replaced. We remind you that when replacing a fuse with a new one, you must always observe the amperage.

The fuse box on the nine is located under the hood on the left side, more precisely on the driver's side, in order to get to it, as you already understood, you need to open the hood. Below you can see the decoding of the fuses and relays of the VAZ 2109 car.

Old cars VAZ 2109 are equipped with fuse blocks, the marking of which is 17.3722. This PSU consists of a case and an engineering board. Wire contacts, fuses and relays are soldered to the board.
Newer versions of nines, the release of which began in 1998, here the BP is marked 2114-3722010-60. Here we see fuses already.

Old style mounting block 17.3722

Decoding fuses VAZ 2109 (mounting block of the old model)

F1 10A Back-up fuse
F2 10A Turn signal indicators, breaker alarm (in emergency mode), emergency warning light
F3 10A Rear brake light, interior lighting
F4 20A Heating element rear window, contacts for turning on the heating of the rear window, socket for carrying, cigarette lighter
F5 20A Sound signal (horn), horn switch
F6 30A Back-up fuse
F7 30A Stove fan motor, washer motor windshield, relay for turning on the electric radiator fan, relay for turning on the heated rear window, control lamp for turning on the heating on the rear window, glove compartment light
F8 7.5A Back-up fuse
F9 7.5A Back-up fuse
F10 7.5A Left side light
F11 7.5A Right side light
F12 7.5A Right low beam headlamp
F13 7.5A Left low beam headlamp
F14 7.5A Left headlight high beam, high beam indicator lamp
F15 Right high beam headlamp
F16 15A Indicators for turn signals and emergency light relay-interrupter (in turn signal indication mode), indicator lamp for turn signals, rear reversing lights, motor reducer and windshield wiper relay, oil pressure warning lamp, hand brake warning lamp, coolant temperature indicator, level indicator fuel, fuel reserve indicator lamp, voltmeter

Decoding of the relay VAZ 2109 (mounting block of the old model)

1- The performance of the cleaning elements of the front optics

2- Rear Window Washer Motor Performance

3- Protection against breakage of the turn signal lamp and light signaling

4- Protection against failure of the windshield wiper motor

5- Allows you to determine the health of the lamp

6- Overvoltage protection for heated rear window

8- High beam lamps

9- Dipped headlights

11- Responsible for the operation of the engine cooling fan. If this relay fails, the risk of engine overheating increases.

12- Horn work

Fuse block of a new sample VAZ 2109

1.8A Back-up fuse
2.8A Back-up fuse
3.8A Back-up fuse
4.16A Coil of the radiator fan relay, electric circuit of the switch and electric motor of the stove
5.3A Emergency light switch in turn signal mode, turn signal breaker, turn signal switch, signal lamp turn signals, turn signal warning lamp, reverse optics switch, reversing lamps, tachometer, voltmeter, gasoline level indicator, gasoline level sensor, gasoline level indicator, coolant temperature indicator, temperature sensor, warning lamp and emergency oil pressure sensor, emergency state lamp brakes, hydraulic switch brake system, hand brake switch
6.8A Switch and brake light bulbs, interior lighting
7.8A Room lighting lamps, a control lamp for turning on the dimensions, a lamp for illumination of the heater handles and cigarette lighter, a glove compartment illumination lamp, a switch and a dashboard illumination lamp
8.16A Klaxon, horn switch, radiator fan electric motor
9.8A Lamp of left dimensions, lamp of left rear dimensions
10.8A Right side lamp, right rear side lamp, fog light switch, fog light control lamp
11.8A Switch and breaker for turn signal indicators, turn signal indicator lamps, warning lamp in emergency mode
12.16A Cigarette lighter socket for carrying lamp
13.8A High beam of the right headlight
14.8A High beam of the left headlight, warning lamp of distant optics
15.8A Low beam right headlight
16.8A Low beam left headlight

Decoding of the relay in the fuse box of the new model VAZ 2109

K1 Without it, the rear window washer engine will not work
K2 Responsible for the operation of turn signal lamps and light signaling
K3 Ensures the operation of the windshield wiper
K4 Protects brake lights and vehicle dimensions
K5 Provides high beam operation
K6 Ensures the operation of the optics washer device
K7 Protects the power window motor, if fitted on your vehicle
K8 Sound signal or just a horn
K9 Protects against overvoltage going to the engine cooling fan
K11 Responsible for the operation of the rear window defroster
K12 Ensures the operation of low beam headlights

Well, that's all we examined the pinout and decoding of the fuse box on a VAZ 2109 car. I would also like to note that in most cases there is almost always a fuse and relay circuit on the case or on the cover of the mounting block, so I think it will not be difficult to figure this out. Goodbye to everyone.

Figure: 7.3. Mounting block (cover removed): 1 - relay for switching on headlight cleaners (K6); 2 - rear window washer time relay (K1); 3 - relay-interrupter for direction indicators and alarm (K2); 4 - wiper relay (K3); 5 - contact jumpers in place of the lamp health monitoring relay; 6 - relay for turning on the rear window heating (K10); 7 - spare fuse; 8 - relay for turning on the high beam headlights (K5); 9 - relay for switching on the dipped headlights (K11); 10 - fuse; 11 - relay for turning on the electric motor of the fan of the engine cooling system (K9); 12 - switching relay sound signal (K8)

Figure: 7.4. Conditional numbering of plugs in the pads of the mounting block for connecting wires in the engine compartment: Ш5 and Ш6 - pads for connecting the front wiring harness; Ш7 and Ш8 - pads for connecting the wiring harness of the left mudguard; Ш11 - block for connecting the wiring harness of the air intake box

Figure: 7.6. Connection diagram of the mounting block (the outer number in the designation of the wire tip is the block number, and the inner number is the conditional number of the plug): K1 - rear window washer time relay; K2 - relay-interrupter for direction indicators and alarm; K3 - wiper relay; K4 - relay for monitoring the health of the lamps (contact jumpers are shown inside, which are installed instead of the relay); K5 - headlight high beam relay; K6 - headlamp cleaning relay; K7 - power window relay; K8 - relay for turning on the sound signal; K9 - relay for turning on the electric motor of the fan of the engine cooling system; K10 - relay for turning on the rear window heating; K11 - relay for switching on low beam headlights

Figure: 7.5. Conditional numbering of plugs in the pads of the mounting block for connecting wires in the passenger compartment: Ш9 - block connecting to the rear wiring harness; Ш1 – Ш4 - pads connecting to the instrument panel wiring harness

Most of the fuses and auxiliary relays are located in a separate mounting block () installed in the air intake box on the left side of the vehicle. Wires are connected through the mounting block engine compartment with wires of the instrument panel and the car interior. The location of the blocks and the conventional numbers of the plugs in the connecting blocks of the mounting block are indicated on and. The wiring diagram of the mounting block is shown on.

Figure: 7.3b. Location of relays and fuses in the mounting block: K1 - relay for switching on the headlight cleaners; K2 - relay-interrupter for direction indicators and alarm; K3 - purifier relay windscreen; K4 - lamp health monitoring relay; K5 - power window relay; K6 - relay for turning on sound signals; K7 - relay for turning on the rear window heating; K8 - relay for turning on the high beam headlights; K9 - relay for switching on the dipped headlights; F1 – F20 - fuses

Figure: 7.6b. Connection diagram of the mounting block (the outer number in the designation of the wire tip is the number of the block, and the inner number is the conditional number of the plug): K1 - relay for turning on the headlight cleaners; K2 - relay-interrupter for direction indicators and alarm; K3 - windshield wiper relay; K4 - lamp health monitoring relay; K5 - power window relay; K6 - relay for turning on sound signals; K7 - relay for turning on the rear window heating; K8 - headlight high beam relay; K9 - relay for switching on the dipped headlights; F1 – F20 - fuses

Since 1998, a mounting block 2114-3722010 (in different configurations) with pin headers in different configurations has been installed on VAZ-2108 vehicles. The new mounting block differs from the old one (type 17.3722) in the designation of fuses, relays (see, and Table 7.1) and connectors (letter X instead of Ш), as well as in the absence of a rear window washer time relay and a relay for turning on the engine cooling fan motor. The new mounting block is practically interchangeable with the old one. Special features are only available in the connection of the headlight cleaners and the engine cooling fan motor. These features are indicated below in the respective chapters.

Repair of the mounting block consists mainly of replacing printed circuit boards. Soldering of wires is allowed instead of burned-out current-carrying tracks on printed circuit boards, but only if this does not require disconnecting the printed circuit boards.

Table 7.1. Chains protected fuses

Disassembly and assembly. Disassemble the mounting block for replacement or repair of printed circuit boards in the following order:

Remove the cover and take out the relays, jumpers and fuses from the sockets of the mounting block;

Unscrew the fastening screws and remove the upper half of the mounting block case;

Remove the PCB assembly from the bottom half of the housing.

Assemble the mounting block in the reverse order of disassembly.

Electric motors of gear motors (windshield wipers, rear window (VAZ-2108, -2109), headlights - if installed) are protected by automatic reusable bimetallic fuses. The power supply circuit of the injection system (engine -2111) is protected by a fuse-link made of a wire with a conductor of reduced cross-section (1 mm2). Charge circuits not protected battery, ignition ( carburetor engines), starting the engine, the "generator - ignition switch - mounting block" circuit. Powerful consumers (starter, headlights, cooling fan motor, electric gasoline pump, etc.) are connected via a relay.

Since 1998, instead of block 17.3722, mounting blocks 2114-3722010-60 or 2114-3722010-10, 2114-3722010-18 with blade fuses have been installed on some cars. The new units differ from the old ones in the rating and designation of fuses, designation of relays and connectors (letter X instead of Ш), as well as the absence of a rear window washer time relay and an engine cooling fan motor relay (a new type of sensor switch is installed on these vehicles, its contacts are designed for a high current, so the need for a relay has disappeared). To distinguish the block 2114-3722010-60 for the VAZ-2108 family (resistors and a diode are included in the generator excitation winding power circuit) from an externally similar block for the VAZ-2115, it has a white mark near the XII connector.

Fuse box 2114-3722010-10, 2114-3722010-18, 2114-3722010-60

Fuse box 17.3722

Until 1986, the fog lamps in the taillights and the fog lamp were protected by fuse 15 on the mounting block. Since 1986 they have been protected by a separate fuse located in the wiring harness near the fog light switch. This fuse is rated for 8 A and is housed in a separate plastic case.

I will show you 2 diagrams. At one time, they got used to it. There are 2 types in the pictures: regular and euro. Where I think you can figure it out for yourself. Download and print! come in handy!

And transcript for more details:
F9 (7.5 A) Right fog lamp and a warning lamp for turning on fog lamps
F8 (7.5 A) Left fog lamp fuse
F1 (10 A) Headlamp wiper motors (at the moment of switching on), headlamp wiper relay (contacts) and headlight washer activation valve
F7 (30 A) Headlamp wiper motors (in operation). Relay for turning on headlamp wipers (winding). Heater fan motor, washer pump, rear window wiper. Rear window washer time relay. Rear window washer activation valve. Relay for radiator cooling fan (winding) and rear window heating. Control lamp for heating the rear window and lighting the glove box
F16 (15 A) Direction indicators, direction indicators and alarm relay-interrupter (in direction indication mode). Indicator lamp for turning on the turn signal. Rear lights (long-range light bulbs). Windshield wiper motor and relay. Generator excitation winding (when starting the engine) and brake fluid level warning lamp
F16 (15 A) Fuse VAZ 2109 control lamps: emergency oil pressure, cover the air damper of the carburetor, turn on the hand brake. Board "STOP". Coolant temperature and fuel level gauges. Control lamp for reserve remaining fuel. Voltmeter. Control lamp "CHECK ENGINE". Board "TEST". Control lamps onboard system controls, seat belts unfastened and doors unlocked. Door lock inertia switch power supply circuit
F3 (10 A) Rear lights (brake lights). Interior lighting
F6 (30 A) Power window motor, power window relay
F10 (7.5 A) License plate lights. Hood lamp. Instrument lighting lamps. Control lamp for turning on the side light. Illumination board for heater levers. Cigarette lighter lamp Left headlight (side light). Left tail light - side light
F5 (20 A) Radiator cooling fan electric motor and its turn-on relay (contacts). Sound signal and relay to turn it on
F11 (7.5 A) Right headlight (side light). Right tail light (side light)
F2 (10 A) Direction indicators, direction indicator and alarm relay-interrupter (in alarm mode). Control lamp for switching on the alarm
F4 (20 A) Heated rear window defogger. Rear window heating relay (contacts). Holder for connecting a portable lamp. Cigarette lighter
F15 (7.5 A) Right headlight (high beam)
F14 (7.5 A) Left headlight (high beam). High beam headlight control lamp
F13 (7.5 A) Left headlight (low beam)
F12 (7.5 A) Right headlight (low beam)

1 (8 A) Backup fuse in the VAZ 2109 block
2 (8 A) Reserved
3 (8 A) Headlight cleaning motors at the moment of switching on). Relay for switching on headlamp wipers (contacts). Headlight washer valve
4 (16 A) Headlamp cleaning motors (in operation). Relay for turning on headlamp wipers (winding). Heater fan motor. Electric motors for washer pump and rear window wiper. Rear window washer time relay. Windshield and rear window washer activation valve. Relay for radiator cooling fan (winding) and rear window heating. Control lamp for heating the rear window and lighting the glove box
5 (8 A) Direction indicators, turn signal and alarm relay-interrupter (in direction indication mode). Indicator lamp for turning on the turn signal. Rear lights (long-range light bulbs). Windshield wiper motor and relay. Excitation winding of the generator (when starting the engine). Control lamp for brake fluid level. Control lamp for emergency oil pressure. Control lamp for covering the carburetor air damper. Handbrake control lamp. Board "STOP". Coolant temperature gauge. Fuel level indicator. Control lamp for reserve remaining fuel. Voltmeter
6 (8 A) Fuse for rear lights (brake signal lamps) in block 2109. Interior lighting
7 (8 A) License plate lights. Hood lamp. Instrument lighting lamps. Control lamp for outdoor lighting. Illumination board for heater levers. Cigarette lighter lamp
8 (16 A) Radiator cooling fan electric motor and its relay (contacts). Sound signal and relay to turn it on
9 (8 A) Left headlight (side light). Left tail light (side light)
10 (8 A) Right-hand headlight (side light). Right tail light (side light)
11 (8 A) Direction indicators, alarm relay-interrupter (in alarm mode). Control lamp for switching on the alarm
12 (16 A) Rear window heating element. Rear window heating relay (contacts). Holder for connecting a portable lamp. Cigarette lighter
13 (8 A) Right headlight (high beam)
14 (8 A) Left headlight (high beam). High beam headlight control lamp
15 (8 A) Left headlight (low beam)
16 (8 A) Right headlight (low beam)

Diagram and location of fuses in the fuse box VAZ-2109, 2108 and 21099

The fuse box on the VAZ-2109 is located under the hood and looks like this:

We attach the same arrangement of fuses and relays in the block:

Fuse mounting block 2114-3722010-60

Fuse mounting block 2114-3722010-18

Fuse mounting block 17.3722

Please note that fuse for rear PTF VAZ-2109 and 2108 located separately from the unit, to the left of the driver's seat under the panel.

And here is the decoding of the values \u200b\u200bof the fuses VAZ-2109, 2108 and 21099:

Vaz 2109 fuse box.

In most cases, in a VAZ 2109 car, all electrical circuits are protected by reusable fuses. In order to avoid their searches throughout the car, the engineers of AvtoVAZ invented and put into action a fuse box, which is located under the hood in the closest part to the driver. Over the decades, it turned out that the place was not well thought out, so motorists began to have questions about this block.

Firstly, in most cases, the fuse box simply floods and either it burns out, or the contacts begin to oxidize. Secondly, in order to replace a blown fuse, the driver has to open the hood and leave the car in the fierce Siberian frost. On this occasion, the engineers corrected only in 10 Vaza models. The fuse box VAZ 2110 is located in the passenger compartment from the bottom near the driver's left hand, which gives him a number of advantages:

1. It is not possible to fill it.
2. Oxidation occurs to a lesser extent due to the minimal temperature drop.
3. Ease of replacing a blown fuse.

If you went to go to where the stove relay is located on the VAZ 2109, then I want to upset you. The stove relay does not exist, there is an ignition relay with which the VAZ 2109 stove is connected.

Fuse mounting block 2114-3722010-18.

• K1 - headlight cleaner relay;
• K4 - lamp health relay;
• K5 - power window relay;
• K6 - horn relay;
• K8 - high beam relay;
• K9 - low beam relay;
• F1-16 - fuses.

Fuse mounting block 2114-3722010-60.

• K1 - headlight cleaner relay;
• K2 - turn signal and alarm relay;
• K3 - windshield wiper relay;
• K4 - relay of serviceability of brake light lamps and dimensions;
• K5 - power window relay;
• K6 - horn relay;
• K7 - rear window heater relay;
• K8 - high beam relay;
• K9 - low beam relay;
• F1-16 - fuses;
• F1 - F20 - spare fuses.

Mounting block of fuses 17.3722.

1. headlight cleaner relay (K6);
2. rear window washer relay (K1);
3. turn signal and alarm relay (K2);
4. wiper relay (K3);
5. contact jumpers;
6. rear window heating relay (K10);
7. spare fuse;
8. headlight high beam relay (K5);
9. headlamp low beam relay (K11);
10. fuse;
11. radiator cooling fan relay (K9);
12. horn relay (K8);

Decoding of the fuses of the mounting block for the VAZ 2109, 2108, 21099.

• 1 (8 A) F9 (7.5 A) - Right fog lamp;
• 2 (8 A) F8 (7.5 A) - Left fog lamp;
• 3 (8 A) F1 (10 A) - Headlight washers, relay and washer valve;
• 4 (16 A) F7 (30 A) - Headlight cleaners, headlight cleaner relay, heater fuse, front and rear window washer motor, radiator cooling fan relay, glove compartment lighting, rear window heating relay;
• 5 (8 A) F16 (15 A) - Oil pressure lamp, direction indicators and hazard warning lights, rear lights, windshield wiper switch, brake fluid level lamp, parking brake lamp, ”STOP” lamp, temperature and fuel level indicator.
• 6 (8 A) F3 (10 A) - Rear lights and interior lighting.
• 6 (8 A) F6 (30 A) - Power windows and power window relays.
• 7 (8 A) F10 (7.5 A) - Rear lighting rooms, lighting dashboard, cigarette lighter lighting, heater lever lighting.
• 8 (16 A) F5 (20 A) - Horn, engine cooling fan motor and its relay.
• 9 (8 A) F10 (7.5 A) - Dimensions of the left headlight and left rear light.
• 10 (8 A) F11 (7.5 A) - Dimensions of the right headlight and right rear light. / Li\u003e
• 11 (8 A) F2 (10 A) - Alarm and its lamp.
• 12 (16 A) F4 (20 A) - Cigarette lighter, heated rear window and its turn-on relay.
• 13 (8 A) F15 (7.5 A) - High beam of the right headlight.
• 14 (8 A) F14 (7.5) - High beam of the left headlight and lamp for their inclusion.
• 15 (8 A) F13 (7.5 A) - Low beam of the left headlight.
• 16 (8 A) F12 (7.5 A) - Low beam of the right headlight.

Diagram of the mounting block of fuses VAZ 2109, 2108, 21099 (block 17.3722)

• K1 - rear window washer relay;
• K3 - wiper relay;
• K4 - lamp health relay;
• K5 - headlight high beam relay;
• K6 - headlight cleaner relay;
• K7 - power window relay;
• K8 - horn relay;
• K9 - Cooling fan relay;
• K10 - rear window heating relay;
• K11 - Relay dipped headlights.

Diagram of the mounting block of fuses VAZ 2109, 2108, 21099 (2114-3722010-60)

• K1 - headlight cleaner relay;
• K2 - turn signal and alarm relay;
• K3 - windshield wiper relay;
• K4 - lamp health relay;
• K5 - power window relay;
• K6 - horn relay;
• K7 - rear window heating relay;
• K8 - headlight high beam relay;
• K9 - low beam relay;
• F1-F20 - fuses.

• Ш1-Ш4 - connects to the dashboard harness;
• Ш9 - connects to the rear harness.

Engine compartment connection numbers:

1. Ш5, Ш6 - the front harness is connected;
2. Ш7, Ш8 - the wiring harness of the left mudguard is connected;
3. Ш11 - the wiring harness of the air intake box is connected.

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Fuse box VAZ 2109 2108 21099

Most electrical circuits are protected by fuses. Electric motors of gear motors (windshield wipers, rear window (VAZ-2108, -2109), headlights - if installed) are protected by automatic reusable bimetallic fuses. The power supply circuit of the injection system (engine 2111) is protected by a fuse made of a wire with a conductor of reduced cross-section (1 mm2). The circuits for charging the storage battery, ignition (carburetor engines), starting the engine, the “generator - ignition switch - mounting block” circuit are not protected. Powerful consumers (starter, headlights, cooling fan motor, electric gasoline pump, etc.) are connected via a relay.

K1-relay for turning on headlight cleaners; K2-relay-interrupter for direction indicators and alarm; K3 windshield wiper relay; K4-lamp health control relay; K5-power window relay; K6 - relay for turning on sound signals; K7-relay for turning on the electric heated rear window; K8-headlight high beam relay; K9 - headlamp dipped beam relay; F1-F16 - fuses

K1 - Relay for switching on the headlight wipers, K2 - Relay-interrupter for direction indicators and alarm, K3 - Relay for windshield wiper, K4 - Relay for monitoring the health of brake lights and side lights, K5 - Power window relay, K6 - Horn relay, K7 - Rear window heating relay, K8 - Headlamp high beam relay, K9 - Headlamp low beam relay, F1 - F16 - Fuses, F1 - F20 - Spare circuit breakers

Fuse mounting block 17.3722

1 - relay for turning on the headlight cleaners (K6); 2 - time relay for rear window washer (K1); 3 - relay-interrupter of direction indicators and alarm (K2); 4 - wiper relay (KZ); 5 - contact jumpers in place of the lamp health monitoring relay; 6 - relay for turning on the rear window heating (K10); 7 - spare fuse; 8 - relay for turning on the high beam headlights (K5); 9 - relay for switching on dipped headlights (K11); 10 - fuse; 11 - relay for turning on the electric motor of the fan of the engine cooling system (K9); 12 - relay for turning on the sound signal (K8)

Decoding of fuses of the mounting block for VAZ 2109, 2108, 21099

Numbers from 1 to 16 - old style mounting block 17.3722

Mounting block with fuses for a VAZ 2109 (diagram)

Fuse blocks installed on old and updated versions VAZ 2109 cars, serve to combine all electrical wiring.

The main task of the power supply unit is to prevent breakdowns of electrical equipment installed in the car.

Schemes

The entire line of VAZ 2109 cars can be conditionally divided into two branches - produced before 1998 and produced after 1998.

Older cars are equipped with fuse boxes marked 17.3722. This PSU consists of a case and an engineering board. Wire contacts, fuses and relays are soldered to the board.

The desired mounting block is also located the same everywhere - in engine compartment opposite the driver's seat almost under the windshield itself.

Location

Differences

Are there differences between the old and new versions of the PSU? Of course. They are as follows:

• The parts of the mounting block are marked differently;
• The fuse rating is different;
• The new PSU does not have a cooling fan motor relay and a rear window washer time relay.

Old-style power supply unit

First of all, consider the old-style power supply units, which are still quite often found on VAZ 2109 cars. Moreover, as we have already said, both with injection and carburetor engines.

Fuse number

Current strength

The chain he protects

Turn signal indicators, emergency signal breaker (in emergency mode), emergency warning lamp

Rear brake lights, interior lighting

Rear window heating element, rear window heating activation contacts, carrying socket, cigarette lighter

Horn (horn), horn switch

Stove fan electric motor, windshield washer electric motor, electric radiator fan turn-on relay, rear window heating relay, rear window heating control lamp, glove compartment light

Left side light

Right side light

RH low beam headlamp

Left low beam headlamp

Left high beam headlamp, high beam indicator lamp

High beam headlight, right

Indicators of turn signals and a relay-interrupter of emergency lights (in the mode of indication of turn signals), a control lamp for indicators of turn signals, rear reversing lights, a motor reducer and a relay for turning on windshield wipers, a control lamp for oil pressure, a control lamp for hand brake, a coolant temperature indicator, a fuel level indicator, fuel reserve indicator lamp, voltmeter

BP 17.3722

In addition to the designations of fuses, it will not be superfluous for you to know which relay number in the mounting block is responsible for which functions.

Relay number

Functions

The performance of the cleaning elements of the front optics

Rear Window Washer Motor Performance

Protection against breakage of the turn signal lamp and light signaling

Protection against failure of the windshield wiper motor

Allows you to determine the health of the lamp

Overvoltage protection for heated rear window

High beam lamps

Dipped headlights

Responsible for the operation of the engine cooling fan. If this relay fails, the risk of engine overheating increases.

Old BP

Power supply unit of a new type

Here, the assembly block diagram is arranged a little differently, but it is more relevant for owners of the VAZ 2109, since most of the nines that have survived in operation to this day are modernized versions.

The scheme is relevant for both carburetor and injection types of engines.

Fuse number

Rated current

The electrical circuit for which is responsible

Radiator fan relay coil, switch and stove motor electrical circuit

Emergency light switch in turn signal mode, turn signal interrupter, turn signal switch, turn signal indicator light, turn signal indicator light, reverse optics switch, reversing lamps, tachometer, voltmeter, gasoline level indicator, gasoline level gauge, gasoline level indicator, indicator coolant temperature, temperature sensor, warning lamp and emergency oil pressure sensor, brake alarm lamp, brake hydraulic switch, hand brake switch

Stop light switch and bulbs, interior lighting

Room lighting lamps, a control lamp for turning on the dimensions, a lamp for illumination of the heater and cigarette lighter handles, a glove compartment illumination lamp, a switch and a dashboard illumination lamp

Horn, horn switch, radiator fan electric motor

LH lamp, LH rear lamp

Right side lamp, right rear side lamp, fog light switch, fog light control lamp

Turn signal switch and interrupter, turn signal indicator lamps, warning lamp in emergency mode

Cigarette lighter, socket for carrying lamp

High beam, right headlight

High beam of the left headlight, warning lamp of distant optics

Low beam, right headlight

Left headlight low beam

New PSU

As for the relay in the mounting block of a new sample for the VAZ 2109, here the pinout is as follows.

Relay number

Its functions

Without it, the rear window washer engine will not work

Responsible for the operation of turn signal lamps and light signaling

Ensures the operation of the windshield wiper

Protects brake lights and vehicle dimensions

Provides high beam operation

Ensures the operation of the optics washer device

Protects the power window motor, if fitted on your vehicle

Sound signal or just a horn

Protects against overvoltage going to the engine cooling fan

Responsible for the operation of the rear window defroster

Provides the operation of low beam headlights

It is necessary not only to understand the location of one or another fuse, relay, but also to know how to replace a failed element.

Dismantling and replacement

If your equipment is out of order, you must first check the condition of the fuse responsible for it.

In practice, it is not difficult to remove and remove an unusable fuse or relay. To do this, you need:

• Raise the hood and disconnect the minus from the battery. Since you are working with the fuse box responsible for electrical equipment, the car should not be energized at this moment;
• Find the mounting block. It is located in the engine compartment opposite the driver's seat directly under the windshield. The block is closed from above with a plastic cover. To remove it, simply squeeze the latches on the sides;
• Remove the cover and look at the reverse side. There is an electrical diagram showing the location of this or that fuse, relay. Just find the element that is responsible for the failed equipment according to the tables above;
• Remove the fuse. All mounting blocks are provided with special pliers. Removing fuses manually is not recommended. The relays are removed by small wiggles up and down;
• Replace the defective component.

Fuse failure is detected by the melted filament. These are fusible elements that melt and close contacts, preventing equipment from being damaged by excessive voltage.

That's all, it remains only to replace the element of the fuse box, close the cover, put the battery terminal back in place and check the operation of the equipment.

Most electrical circuits are protected by fuses. Electric motors of gear motors (windshield wipers, rear window (VAZ-2108, -2109), headlights - if installed) are protected by automatic reusable bimetallic fuses. The power supply circuit of the injection system (engine 2111) is protected by a fuse made of a wire with a conductor of reduced cross-section (1 mm2). The circuits for charging the storage battery, ignition (carburetor engines), starting the engine, the “generator - ignition switch - mounting block” circuit are not protected. Powerful consumers (starter, headlights, cooling fan motor, electric gasoline pump, etc.) are connected via a relay.

The relay and fuse box in the VAZ 2108-09-099 (carburetor, injector) is located under the hood, in the compartment in front of the windshield on the left side.

Fuse mounting block 2114-3722010-18

Fuse mounting block 2114-3722010-60

Fuse mounting block 17.3722

Decoding of fuses of the mounting block for VAZ 2109, 2108, 21099

F1-F16 - mounting block 2114-3722010-60, 2114-3722010-18.

Numbers from 1 to 16 - old style mounting block 17.3722

Diagram of the mounting block of fuses VAZ 2109, 2108, 21099 (block 17.3722)

(the outer digit in the designation of the wire end is the block number, and the inner digit is the conditional number of the plug)

Diagram of the mounting block of fuses VAZ 2109, 2108, 21099 (2114-3722010-60)

Conditional numbering of plugs in the pads of the VAZ 2109-09-099 mounting block for connecting wires in the cabin:

Ш9 - block connecting to the rear wiring harness;

Ш1-Ш4 - pads connecting to the instrument panel wiring harness.