Fuse and relay diagram for VAZ 2105, 2107, 2104, IZH 27175

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:

Old style block

With the exception of very ancient and rare first copies, switching units, also called black boxes, for the VAZ 2105 were mounted outside the engine panel on the right, and wiring from the engine compartment to the control units passed through them. Initially, cylindrical fuses were used, like the first VAZs, of two ratings, 8A and 16A.

All seventeen fusible links stood in a row at the front wall of the case. The location and distribution of loads was also similar to its predecessors.

The fastening of outdated type fuses was not reliable, which was in no way compensated by the simplicity and clarity of their replacement. Therefore, the design was soon changed.

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

How to make a replacement

YouTube funnels and fuses for Lada Largus
Sometimes fuses require replacement, even if the circuit they protect is in good working order. The fuse rating is calculated accurately enough so that if the current consumption increases even by several tens of percent, additional damage will not be caused to the car.

But a short-term increase in the current flowing through the fuse is quite possible even in normal situations. Inrush current in electric motors, increased consumption by lamps when the filaments heat up, overheating of the fuse housing due to poor contact in its connector, and finally, manufacturing defects and increased nominal tolerances. Sometimes it can even be due to natural aging, as well as an installation error.

There is a notice on the inside of the lid that indicates where each device is located and its operating current. This data must strictly correspond to reality, otherwise the above-mentioned troubles are possible. The new type of fuses are usually made of transparent plastic, which makes it possible to determine their integrity even visually. But not always. Sometimes the break cannot be seen with the eye. You can use a multimeter in ohmmeter mode or a test light.

The easiest way is to measure the resistance of the removed fuse with an ohmmeter. The device should show a resistance of about zero. No more than his own readings with the probe tips short-circuited among themselves. You can compare it with a known-good fuse in stock.

A certain convenience is the color coding of denominations. But you shouldn’t trust it blindly; the main thing is the number indicated on the end of the case. The new insert must be marked in the same way as the diagram allows, since the failed insert could also be selected incorrectly.

If the new fuse also fails, further replacements are pointless. It is necessary to look for and eliminate faults in the instruments, instrument panel or wiring itself.

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: Diagram of Lada Kalina VAZ-1117, VAZ-1118, VAZ-1119

What to do if charging is lost?

If the vehicle is equipped with a G-222 generator device and the generator has lost charging, it is necessary to diagnose the connections in the fuse box. The test is performed using a tester. Below is a list of connections that are subject to diagnostics:

• Sh4-1 - Sh11-4;
• Ш1-6 - safety device number 9 - Ш11-3, most often the reason lies in the rupture of this connection;
• Ш1-4 - Ш10-1;
• Sh5-3 - Sh10-7;
• Ш1-6 - safety element number 10 - Ш4-1.

If the machine is equipped with a 37.3701 generator device, then only the last three circuits are diagnosed:

• Ш1 — brown connector, located on the power supply unit on the interior side;
• Ш4 - blue connector, also located in the cabin;
• Ш5 — yellow connector, in the passenger compartment;
• Ш10 — brown connector, located in the engine compartment;
• Ш11 - yellow connector in the engine compartment.

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.

Why doesn't the cigarette lighter work?

Due to the fact that the device consists of two detachable parts, you need to understand that when the VAZ-2107 cigarette lighter does not work, only one of the component parts of the device can be broken - the socket or cartridge. In turn, a working socket may not work due to a lack of power at one of its contacts.

Fuse blown

In the VAZ-2107, the cigarette lighter is connected in parallel to the clock and the radio; if the socket stops functioning at the same time as these devices, this is a consequence of one reason - the fuse has failed. To restore the functioning of the device, the fuse must be replaced.

Unreliable contact

The cigarette lighter connectors are susceptible to oxidation. If the reason for the lack of power is oxidized terminals, they must be cleaned by first disconnecting the negative bus from the battery.

Burnt out filament element

Nichrome wire serves as an incandescent element and over time can burn out and fail. It is not advisable to disassemble the cigarette lighter cartridge in order to repair it; you need to purchase a new element.

Broken electrical wiring

Lack of power may be due to a break in the electrical circuit.

The device, wiring diagram for electrical equipment of the VAZ-2105 and wiring are similar to other models; you need to find the break point, clean it and connect it. It would not be superfluous to solder the twisting point and securely insulate it.

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.