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
Connection diagram of the VAZ 2110 mounting block
The order of conventional numbering of plugs in the connecting blocks of the mounting block and the wires connected to them
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
When turning on the turns, the fuse blows.
Another malfunction of the direction indicators is the fuse blowing when the indicators of one of the sides are turned on. To quickly identify a malfunction, turn on the hazard warning lights. The signal lamp in a circuit that has a short circuit will not light up or will burn at full intensity. A sign of a short circuit in the signal lamp circuit can be a buzzing sound from the turn signal relay when the indicators are turned on. To facilitate troubleshooting when the VAZ direction indicators do not work, use the diagrams below.
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.
Signs of faulty fuses
- The module has changed color, black dots are visible on the surface, carbon deposits,
- On the instrument panel (European panel) an indicator indicates a malfunction in the engine compartment,
- When the engine is running, the ignition is on, the battery is charged, some mechanisms do not work, they do not work correctly,
- In the car interior you can hear the smell of burning, melted in the area where the mounting block is located,
- The modules feel hot to the touch.
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Design, description, diagram of the mounting block of fuses and relays VAZ 2110 | VAZ 2111 | VAZ 2112
| Fuses and relays for turning on the electrical equipment of the vehicle are installed in the mounting block. The fuse and relay mounting block is installed in the instrument panel on the left side. NOTE The engine management system fuses and relays are located in the center console of the instrument panel. Mounting block of fuses and relays: 1 - high beam headlight relay (K5); 2 — low beam headlight relay (K4); 3 — relay for monitoring and checking the serviceability of lamps (K1); 4 - tweezers for extraction | fuses; 5 — relay for turning on the door power windows; 6 — relay for turning on direction indicators and hazard warning lights (KZ); 7 — starter activation relay; 8 - spare fuses; 9 — installation location of the fog lamp relay; 10 — relay for switching on windshield wipers and washers (K2); 11 — relay for turning on the heated rear window (K7); 12 - additional relay (KB); 13 - top row of fuses (F1-F10 are installed in numerical order from left to right); 14 - bottom row of fuses (F11-F20 are installed in numerical order from left to right) | Note 1. The serial numbers and rated current of the fuses are indicated on the housing of the mounting block. The purpose of the relay and the circuits protected by fuses are indicated by conventional symbols. Note 2. Depending on the vehicle configuration, relays for switching on additional equipment may be installed on top of the mounting block. |
See also Mounting block - replacing fuses and relays Fuses and protected circuits Table 13.4
| № | A | Protected Circuits | № | A | Protected Circuits |
| F1 |
F11
5
Reasons for premature failure of fuses
- A natural factor is the duration of operation without intermediate prevention,
- Moisture ingress, condensation formation, terminal oxidation, insulating layer drying out, electrical supply circuit breakage,
- Mechanical damage, accident, shock, 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
Description of fuses on a VAZ 2112 car: location
Unlike previous generations of VAZ, the 2112 uses fuses (hereinafter referred to as modules). The total quantity is 20 pieces, which is 4 more than the VAZ 2110. And also, 8 relays - breakers.
Cylindrical type modules are not installed on new VAZ and Lada models due to the outdated design.
Where is it located: the standard location of the main mounting block is under the dashboard on the left side. To provide access to the power supply, you need to press the plastic lock - lever, lower the power supply down, carry out maintenance, and install in the reverse order.
VAZ 2112 fuse diagram
With an 8-valve and 16-valve engine, it is equipped with a main mounting block, and since 2008 an additional console has been added. A diagram with element markings is printed on the left side of the main block cover and placed below.
The designations of all elements are presented below. You can find the transcript in the table.
| Circuit breakers | Power, A | What protects |
| F1 | 5 | Lamps for turning on the license plate lighting, instruments, side lights, trunk, left side. |
| F2 | 7,5 | Low beam |
| F3 | 10 | Further |
| F4 | 10 | PTF |
| F5 | 30 | Door windows |
| F6 | 15 | Portable lamp (socket) |
| F7 | 20 | Engine cooling fan. Sound signal. |
| F8 | 20 | Rear window heating element. Relay for turning on the heated rear window. |
| F9 | 20 | Recirculation valve. Cleaners, windshield and headlight washers (wiper fuse). Relay for turning on the heated rear window. |
| F10 | 20 | Spare |
| F11 | 5 | Starboard side marker lamps |
| F12 | 7,5 | Middle left |
| F13 | 10 | Far left. Power indicator lamp |
| F14 | 10 | Left PTF |
| F15 | 20 | Electrically heated seats. Trunk lock lock |
| F16 | 10 | Turn signals and emergency lights. |
| F17 | 7,5 | Interior lighting. Ignition switch. Stop signal. Watch. |
| F18 | 25 | Glove compartment lighting. Heater controller. Cigarette lighter fuse. |
| F19 | 10 | Locking door locks. Relay for monitoring the serviceability of brake light lamps and dimensions. Direction indicators. Reversing light. Generator excitation winding. On-board control system display unit. Instrument cluster. Watch. |
| F20 | 7,5 | Rear fog lamps. |
- K1 - lamp health monitoring;
- K2 - windshield wiper;
- KZ - direction indicators and emergency lights;
- K4 - switch on low beam;
- K5 - high beam;
- K6 - additional relay;
- K7 — heated rear window;
- K8 - rear PTF.
Starter fuse and relay
Installed on the device itself between the engine and the fan radiator. If signs of a malfunction appear, it is better not to delay replacing the element and install a new relay.
Fuel pump fuse and relay
Located in the additional interior installer - No. 3. Responsible for the fuel pump relay No. 5.
Relay and fuse for cigarette lighter
No. F18 is rated at 25 Amps.
Stove
The 25 A element F18 is responsible for protecting the operation of the electrical circuit of the heater motor.
Turn signals
The elements are marked as F19 and are rated at 10 Amps.
Brake lights
Located in the main block - No. F17. Its power is 7.5 A.
Where is the alarm fuse located?
Cooling Fan
The F7 element with a power of 20 Amperes is responsible for its protection.
Which fuse goes to the radio?
Window lifters
Fuse and relay for central locking VAZ 2112: where is it located
They can be found in a separate box behind the main mounting block.
Ignition
The main relay is located in the additional cabin unit, where it is number 6.
Reverse
F19 with a rating of 10 Amperes is responsible for the lamps.
Fogs
Protected by three inserts: right - F4, left - F14, and rear - F20. The power of all PTFs is 10 Amps. In case of tuning, you may need to replace them with new ones along with the fog lights. The connection occurs via switch K8.
Lamp health monitoring relay
Marked as K1 in the main block of the VAZ 2112.
Brake
Installed under the brake pedal.
Relay and fuse for injectors
The additional element F3 is rated at 15 Amps.
Fuse for interior light
The F17 element with a power of 7.5 A is responsible for the safe operation of the VAZ 2112 interior lighting lamp.
Number plate illumination
Corresponds to F1 with a rating of 5 Amps.
Generator
A three-level relay voltage regulator is located on the device. It is better to replace the factory element with a new one, since three-level voltage regulation often leads to a short circuit.
Heated rear window
Relay K7 is responsible for turning on. Protects the F8 electrical circuit with a rating of 20 Amps.
Seat heating
It is protected by a 20 Amp F15 insert.
Wiper relay
This is a K2 and without its stable operation there will be no washer supply to the windshield, and the wipers will not be able to do their job.
Charger
They placed it next to the device - one of the few elements of this kind under the hood of a car.
Low and high beam VAZ 2112
It is protected by fuses F2 and F12 (left and right headlights), and the high beam is protected by F3 and F13 (left and right). The first has a rating of 7.5 A, and the second has a rating of 10 A.
Fuse for the dashboard of VAZ 2112
Located in the wiring harness leading to the instrument panel from the battery.
Dimensions
There are 2 fusible elements - F1 and F11, left and right. The power of both is 5 Amperes. Factory fuses require replacement due to the fact that the dimensions often burn out due to their malfunctions.
Heated seats
It is protected by an element marked F15 for 20 Amperes.
VAZ 2112 speedometer fuse: where is it located?
Opening the trunk
This is an F1 and is rated at 5A.
Fuse F6
Responsible for protection against burnout of the car socket. Its rating is 15 Amperes.
VAZ 2112: fuse F17 blows
Most often, this element, which is responsible for interior lighting, fails due to a battery failure. Its power is 7.5 A.
Fuse F19
Responsible for protecting the brake light, reversing lights and dimensions.
Relay K1
An element of lamp serviceability, which in older versions is replaced by a jumper.
Relay K6
Speed sensor
Located on the wiring harness leading to the device.
Electromagnetic relays
To relieve the car switch contacts from high current consumption, electromagnetic relays are used in the electrical circuit. There are 8 of them in total:
- K1 is responsible for the serviceability of the lamps;
- for turning on the front window wiper - K2;
- for turn signals and hazard warning lights – K3;
- for low beam headlights - K4;
- for turning on the high beam - K5;
- for heating the rear window - K7;
- for fog lights located at the rear - K8.
The block contains relay K6, which is additional. Before installing a new element into the system, check the wiring for short circuits, otherwise the parting that is protected by the fuse element or the fuse itself may fail. The described block is the main one, but the only one in the VAZ-2112 electrical circuit.
