VAZ 2105 fuses: how to remove and change without problems?

Information on the “five” schemes is intended for self-repair of a car in case of minor problems with electrical equipment. The electrical circuits are divided into several blocks (for ease of viewing via a computer or phone), there are files in the form of a single picture with a description of each element - for printing on a printer. Years of production of this model: from 1979 to 2010. At the end of December 2010, AvtoVAZ stopped producing it due to low demand for the VAZ-2105 model. By this time, 2 million cars had already been produced.

Scheme of carburetor VAZ 2105

This is a color diagram of the electrical equipment of the VAZ 2105. At the top of the image on the right are the colors of the wires, at the bottom are the designations of the elements.

1 – block headlights, 2 – side direction indicators, 3 – battery, 4 – starter activation relay, 5 – electro-pneumatic valve for the carburetor forced idle economizer, 6 – starter, 7 – carburetor microswitch, 8 – generator 37.3701, 9 – headlight cleaners , 10 – sound signals, 11 – spark plugs, 12 – engine compartment lamp, 13 – oil pressure warning lamp sensor, 14 – coolant temperature indicator sensor, 15 – ignition distributor, 16 – brake fluid level sensor, 17 – ignition coil, 18 – windshield wiper, 19 – electric headlight washer motor, 20 – electric windshield washer motor, 21 – control unit for the electro-pneumatic valve of the carburetor forced idle economizer, 22 – ignition switch, 23 – ignition relay, 24 – relay-interrupter for direction indicators and hazard warning lights, 25 – reverse light switch, 26 – brake light switch, 27 – windshield wiper relay, 28 – mounting block, 29 – socket for portable lamp, 30 – glove box lighting lamp, 31 – VAZ-2105 cigarette lighter, 32 – heater fan electric motor, 33 – parking brake warning lamp switch, 34 – carburetor air damper warning lamp switch, 35 – three-lever switch, 36 – hazard warning switch, 37 – instrument lighting switch, 38 – external lighting switch, 39 – lamp switches located in the door pillars, 40 – fog light circuit fuse, 41 – oil pressure warning lamp, 42 – rear fog light switch, 43 – fuel reserve warning lamp, 44 – instrument cluster, 45 – battery charging warning lamp, 46 – breaker relay parking brake warning lamp, 47 – interior lamps, 48 ​​– parking brake warning lamp, 49 – carburetor air damper warning lamp, 50 – warning lamp block, 51 – rear fog light warning lamp, 52 – rear window heating warning lamp, 53 – brake fluid level indicator lamp, 54 – voltmeter, 55 – side light indicator lamp, 56 – turn signal indicator lamp, 57 – speedometer 2105, 58 – headlight high beam indicator lamp, 59 – heater fan switch, 60 – rear window heating switch, 61 – additional resistor for the heater electric motor, 62 – plug connector for connecting the bar, 63 – rear lights, 64 – license plate lights, 65 – fuel gauge sensor, 66 – rear window heating element.

Wiring diagram 2105 - full view:

How to remove and replace the fuse box

Such an operation may be necessary to carry out repair work on a mounting block with fuses or when replacing an old design with a new mounting block. Removing this device does not seem to be a difficult procedure, so the task can be completed even by a novice driver. Difficulties may arise when you need to disassemble this unit.

Tools

To remove the fuse box, no special keys or tools are needed; a set of standard tools is sufficient.

To complete the work you should prepare:

• 10 mm socket wrench or socket;
• a Phillips-blade screwdriver;
• the same screwdriver, but with a flat blade.

In some cases, you may need a liquid like WD-40 or similar, rags, and pliers.

Step-by-step instruction

Before removing the fuse box, disconnect the battery and remove the air filter housing.

Next, the procedure will be as follows:

1. Disconnect the connectors with wires that are connected to the bottom of the fuse box housing. The connectors are colored, so it is impossible to mix them up during assembly. If you have difficulty disconnecting, you can pry them off with a flat-head screwdriver.
2. Now the front of work moves into the interior of the car. You need to detach the shelf under the front panel glove compartment. After this, remove the bottom of the glove box.
3. The visible colored connectors with wires are disconnected from the fuse block.
4. The housing is secured to the engine compartment with four bolts. They should be unscrewed using a 10 mm socket wrench or socket. If they do not budge, the bolts must be treated with WD-40 or similar.
5. Now you can remove the fuse box housing into the engine compartment.

Installing a new or repaired unit is performed in the reverse order. Replacing the old VAZ 2107 fuse box with a new one is carried out similarly to the described example.

Second version of the scheme

1. block headlights
2. side turn signal repeater
3. battery
4. lamp relay for monitoring battery charging
5. electropneumatic valve
6. carburetor microswitch
7. generator
8. headlight glass cleaner
9. sound signal
10. starter
11. engine TDC indicator lamp
12. engine compartment lamp
13. oil pressure warning light sensor
14. coolant temperature gauge sensor
15. fluid level sensor in the hydraulic brake reservoir
16. candles
17. windshield washer pump motor
18. distributor cap
19. distributor
20. ignition coil
21. electric motor of the pump serving the headlight washers
22. electronic control unit
23. diagnostic block (installed on some cars)
24. windshield wiper relay
25. relay-interrupter for direction indicators and hazard warning lights
26. wiper motor
27. brake light switch
28. electric motor of the heater (stove)
29. additional resistance
30. portable lamp socket
31. reverse light switch
32. Handbrake warning lamp switch
33. relay and fuse box
34. low beam headlight relay
35. headlight high beam relay
36. horn relay
37. Relay for windshield wipers and headlight washers
38. rear window defroster relay
39. glove compartment lamp
40. cigarette lighter
41. dome light switches
42. interior lamp
43. rear window defroster switch
44. hazard warning switch with warning lamp
45. warning lamp block
46. rear fog light warning lamp
47. hand brake warning lamp
48. warning lamp indicating a drop in brake fluid level
49. windshield wiper and washer lever
50. handbrake warning lamp relay
51. horn switch
52. outdoor light switch
53. turn signal switch
54. headlight switch lever
55. egnition lock
56. instrument light switch
57. rear fog light switch
58. instrument cluster
59. warning lamp indicating insufficient oil pressure
60. fuel reserve warning lamp
61. fuel level indicator
62. battery charging warning light
63. water temperature indicator
64. instrument lighting lamps
65. voltmeter
66. speedometer
67. indicator lamp for turning on external lighting
68. turn signal indicator lamp
69. high beam warning lamp
70. three-position heater fan switch
71. rear window defroster
72. fuel level and reserve indicator sensor
73. rear light block
74. license plate lights VAZ 2105

Checking the solenoid relay

Checking the functionality of this element is not so difficult. Moreover, you can check it even without removing the starter from the car. For example, let's take a VAZ-2110 car.

So, the starter on this car does not work. First you need to check the wiring going to it for a break.

If everything is in order with the wiring, you need to find out whether the traction relay works at all.

To do this, you can ask someone to turn the ignition key, and listen for yourself to see if there is a click. If it is missing, it is faulty and needs to be replaced.

If there is an actuating click, but the starter itself does not turn, it is possible that the relay does not operate due to burnt contact plates.

You can check whether this is true using a regular screwdriver. The terminal coming from the ignition switch is disconnected from the relay.

Next, a screwdriver is used to close the terminal coming from the battery with the terminal going to the starter - this results in a direct transfer of electricity to the electric motor, bypassing the relay. If it works, you need to look for the cause in the relay.

You can check the voltage going to the starter with a multimeter, but this will most likely make it clear whether the problem is in the starter or in the wiring and battery.

To do this, a multimeter is connected to the positive terminal of the solenoid relay, to which voltage from the battery is supplied. Connect the other negative wire of the multimeter to ground.

Next, someone must turn the ignition key to the start position. The voltage on the multimeter display should correspond to 12 V.

If it is lower, perhaps the battery is simply discharged and its energy is not enough to start the engine, but at the same time its charge is enough to operate the relay, but there is not enough energy to rotate the rotor.

Scheme of VAZ-21053 with generator 37.3701

1 — block headlights; 2 — side direction indicators; 3 - battery; 4 — starter activation relay; 5 — carburetor electro-pneumatic valve; 6 — carburetor microswitch; 7 - generator 37.3701; 8 — gearmotors for headlight cleaners*; 9 — electric motor of the engine cooling system fan*; 10 — fan motor activation sensor*; 11 — sound signals; 12 — ignition distributor; 13 — spark plugs; 14 — starter VAZ-2105; 15 — coolant temperature indicator sensor; 16 — engine compartment lamp; 17 — oil pressure warning lamp sensor; 18 — ignition coil; 19 — brake fluid level sensor; 20 — windshield wiper gearmotor; 21 — carburetor electro-pneumatic valve control unit; 22 — electric motor of the headlight washer pump*; 23 — electric motor of the windshield washer pump; 24 — brake light switch; 25 — windshield wiper relay; 26 — instrument lighting regulator; 27 — relay-breaker for alarm and direction indicators; 28 — reverse light switch; 29 — plug socket for a portable lamp**; 30 — cigarette lighter; 31 — glove box lighting lamp; 32 — mounting block (a jumper is installed instead of a short-circuit relay); 33 — lamp switches on the front door pillars; 34 — lamp switches on the rear door pillars; 35 — lampshades; 36 — parking brake warning lamp switch; 37 — switch for the carburetor air damper warning lamp; 38 — alarm switch; 39 — three-lever switch; 40 — ignition switch; 41 — ignition relay; 42 — external lighting switch; 43 — rear fog light switch; 44 — fog light circuit fuse; 45 — oil pressure warning lamp; 46 — instrument cluster; 47 — fuel reserve warning lamp; 48 — fuel level indicator; 49 — battery charge indicator lamp; 50 — coolant temperature indicator; 51 — control lamp for the carburetor air damper; 52 — parking brake warning lamp; 53 — control lamp block; 54 — rear fog light indicator lamp; 55 — control lamp for heated rear window; 56 — brake fluid level warning lamp; 57 - voltmeter; 58 — speedometer; 59 — control lamp for external lighting; 60 — turn signal indicator lamp; 61 — control lamp for high beam headlights; 62 — heater fan switch; 63 — rear window heating switch with backlight*; 64 — block for connecting the bar; 65 — heater fan electric motor; 66 — additional resistor of the heater electric motor; 67 — rear lights; 68 — pads for connecting to the rear window heating element; 69 — sensor for level indicator and fuel reserve; 70 — license plate lights.

Useful: Lada Vesta VAZ-2180 diagram

VAZ 2105 injector diagram

1 – electric motor of the engine cooling system fan; 2 – mounting block; 3 – idle speed regulator; 4 – electronic control unit; 5 – octane potentiometer; 6 – spark plugs; 7 – ignition module; 8 – crankshaft position sensor; 9 – electric fuel pump with fuel level sensor; 10 – tachometer 2105; 11 – control lamp “CHECK ENGINE”; 12 – car ignition relay; 13 – speed sensor; 14 – diagnostic block; 15 – nozzle; 16 – adsorber purge valve; 17, 18, 19 – injection system fuses; 20 – ignition relay for the injection system; 21 – relay for turning on the electric fuel pump; 22 – intake pipe electric heater relay; 23 – electric heater of the intake pipe; 24 – intake pipe heater fuse; 25 – oxygen concentration sensor; 26 – coolant temperature sensor; 27 – throttle position sensor; 28 – air temperature sensor; 29 – absolute pressure sensor;

• A – to the “plus” terminal of the battery;
• B – to terminal “15” of the ignition switch;
• P4 – relay for turning on the fan motor.

Fuse and relay diagram 2105

Until 1988, the fog lamps in the rear lights and the fog lamp warning lamp were protected by fuse 17 of the mounting block. Since 1988, they began to be protected by a separate fuse, which is located in a plastic case in the wiring harness near the car's fog light switch.

Mounting block 2105-3722010-02

Mounting block 2105-3722010-08

Mounting block diagram 2105-3722010-08

K1 Relay for turning on the heated rear window K2 Relay for turning on the headlight washer cleaners K3 Relay for turning on the sound signal (jumper) K4 Relay for turning on the electric fan motor K5 Relay for turning on the high beam headlights K6 Relay for turning on the low beam headlights

Circuits protected by fuses

F1 (10A) Reversing lamps. Heater electric motor. Rear window heating indicator. Rear window heating relay (winding). F2 (10A) Wiper motors. Windshield washer pump motors. Windshield wiper relay. Relay for cleaners and headlight washers (contacts). F3 (10A) Reserved. F4 (10A) Reserved. F5 (20A) Rear window heating element. Relay for turning on the heated rear window (contacts). F6 (10A) Cigarette lighter. Watch VAZ-2105. F7 (20A) Sound signal. Horn relay. Radiator cooling fan electric motor. Radiator cooling fan motor activation relay (contacts) F8 (10A) Direction indicators (in hazard warning mode). Turn signal indicator (in hazard warning mode). Relay-breaker for direction indicators and hazard warning lights. Hazard warning switch with warning lamp. F9 (7.5A) Rear fog lamps. Indicator for switching on the rear fog lamps. F10 (10A) Direction indicators (in turn indication mode). Turn signal interrupter relay. Turn signal indicator. Tachometer. Fuel indicator. Fuel reserve indicator. Parking brake indicator. Indicator of insufficient oil pressure in the engine lubrication system. Coolant temperature gauge. Voltmeter. Indicator of emergency condition of the working brake system. Battery charge indicator. Electric fan relay. Generator excitation winding (generator 37.3701). F11 (10A) Interior lamps. Brake light bulbs. Luggage compartment lamps. F12 (10A) High beam headlights (right headlight). F13 (10A) High beam headlights (left headlight). High beam indicator. F14 (10A) Front side light (left headlight). Rear marker light (right light). License plate lights. Indicator for turning on side lights. F15 (10A) Front side light (right headlight). Rear marker light (left light). Cigarette lighter lamp. Instrument lighting lamp. Glove box lighting lamp. Clock (lighting lamp). F16 (10A) Low beam headlights (right headlight). Headlight wiper relay (relay coil). F17 (10A) Low beam headlights (left headlight).

In the old-style VAZ 21053, the unit is located directly under the dashboard next to the left door, that is, inside the cabin. In the new VAZ 21053, the safety block is located outside under the hood, closer to the windshield, on the driver's side. The latest models of the “five” are most often equipped with an external fuse block. To open the unit, you need to remove the cover by pushing it upward. On any cover there is a diagram of the VAZ mounting block, which reflects the location of the fuses with a description of the electric current for each of them. In older VAZ 2105 models, the most precise installation of each fuse in accordance with the required current strength is important.

Fuse layout

Where is what in the block?

Before you start changing VAZ 21053 fuses, you need to familiarize yourself with the location and purpose of each of them, including the relay. On the block diagram, the fuses are designated by the English letter F and each have its own number:

• F1 - electric current strength of 10 A, ensures the safety of the electrical circuit of the heating system, reversing lights and connection relay;
• F2 - ensures the safety of the electrical circuit of the windshield wipers and headlights;
• F3, F4 - used as spare fuses;
• F5 - current 20 A, necessary for safe operation of the heater for the rear window and the connection relay;
• F6 - 10 A, ensures the safety of the electrical circuit of the clock and cigarette lighter;
• F7 - 20 A, needed for the operation of the signal and other sound elements;
• F8 - 10 A, provides protection for turning headlights and emergency lights;
• F9 - 7.5 A, protects rear PTF;
• F10, F11 - ensure the safety of the lamps inside the cabin and braking, as well as the parking lamp and the indicator of heating the liquid in the radiator;
• F12, F13, F14 - protect the switching on and off of the high beam headlights, their regulator, as well as the license plate lamp;
• F15 - ensures the safe operation of side lamp lamps and certain devices inside the car;
• F16, F17 - designed to protect low beam headlights and washer relay.

Car modifications

VAZ-2105 . The base model was produced in 1979 with a 1.29-liter carburetor engine producing 63.6 horsepower. It was equipped with a 4-speed gearbox.

VAZ-21050 . The same model of the five, but with a 5-speed gearbox.

VAZ-21051 . Modification with a VAZ-2101 carburetor engine with a volume of 1.2 liters and a power of 58.7 horsepower, a 4-speed gearbox as in the basic version.

VAZ-21053 . Modification with a VAZ-2103 engine with a volume of 1.45 liters and a power of 71.4 horsepower. It was equipped with both 4 and 5-speed gearboxes.

VAZ-21053-20 . Modification with a VAZ-2104 injection engine with distributed injection, volume 1.57 liters and 82 horsepower. The gearbox is 5-speed.

VAZ-21054 . A special modification for the needs of no less special services, such as the traffic police, the Ministry of Internal Affairs and the FSB. It was equipped with a VAZ-2106 carburetor engine with a volume of 1.57 liters and a power of 80 horsepower. In addition, an additional gas tank and battery were installed.

VAZ-21054-20. Another special modification, but with a more powerful VAZ-21067 engine with distributed injection, 82 horsepower, which meets the Euro-3 environmental standard. The gearbox is 5-speed.

VAZ-21055 . A vehicle for taxi service was produced in a small batch with a VAZ-341 diesel engine with a volume of 1.52 liters and a power of 50.3 horsepower.

VAZ-21057 . The export version of the VAZ-21053 car was produced from 1992 to 1997 for countries with left-hand traffic, respectively, the steering wheel was located on the right. The engine complied with the Euro-1 environmental standard.

VAZ-21058 . The same right-hand drive car, based on the VAZ-21050, was produced from 1982 to 1984.

Lada Nova . Export modification of the VAZ-2105, produced mainly for the German markets. VAZ-2105 engine, 4-speed gearbox. Produced from 1981 to 1997.

VAZ-21059 . Another special modification of the car was equipped with a Wankel VAZ-4132 rotary piston engine, with a volume of 1654 cm3 and a power of 140 horsepower. This car was produced in a small batch for the needs of the traffic police, the Ministry of Internal Affairs and the KGB.

VIS-2345 . Semi-frame pickup truck, which was produced from 1995 to 2006 by VAZINTERSERVIS JSC based on modifications of the VAZ-21053 and VAZ-21054.

LADA-2105-VFTS . A sports car with a forced VAZ-2106 engine, using WEBER 45 DCOE carburetors. The engine capacity was 1.6 liters and the power was 160 horsepower at 7000 rpm. It was equipped with spur-cut 4 and 5-speed gearboxes, with cam clutches. In order to reduce the weight of the car, in 1986 the standard doors were replaced with aluminum ones.