Today we will look at the location of fuses in VAZ cars of the tenth family, namely models 2110, 21102, 21103, 2111, 2112. We will also show where the fuses and relays are located on the diagram and talk about the purpose of each of them and how to replace the fuses with your own hands. We will also touch on the most common problems with fuses among owners of these cars, diagnostic methods and replacement.
I would like to say that car electrical systems, in particular fuses and relays in the VAZ 2110, 21102, 21103, 2111, 2112, are quite reliable. The service life depends on operating conditions and timely diagnosis and replacement with high-quality components.
Let's figure out why fuses are needed in a car. First of all, they are responsible for the safety of the wiring and other systems of the machine. It is important to understand that each specific fuse is responsible only for its task and in the event of a short circuit or failure, a fire is practically excluded. A specific fuse blows and this does not cause a chain failure of other systems.
Depending on the problem of failure of any component or part of the car for which the electrician is responsible, you need to understand whether the car can be operated with this malfunction or not. The traffic rules contain a list of faults that you cannot operate a car with. If you discover, for example, that the headlights have failed or the wipers are not working at all, you should immediately correct the problem. Well, you can drive a car with non-working power windows. By the way, if someone suddenly needs a high-quality website for business, then these guys make good websites WebFormata.ru
Relay and fuse blocks VAZ 2112: description and explanation
Modifications of mounting blocks and fuses of the VAZ 2112 have changed more than once during the production of the model.
Radical innovations were introduced only in 2002 after the appearance of a 16-valve injector. In 2006, there was only one unit in the cabin, and in 2007 a console unit was added to it. This happened thanks to changes in the shield and gearbox, and the addition of a Europanel. The cover of the main unit became hinged, which simplified access to the fusible elements. Separate inserts outside the mounting blocks, for example, under the brake pad, have been preserved.
On-board computer
Fuse element F17 or F19 is responsible for it. In the first case, the power is 7.5 A, and in the second - 10 A.
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VAZ 2110 2111 2112 (Lada 110 111 112) - a family of cars produced in 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 and 2009 with sedan and hatchback bodies and a station wagon mainly with 8 and 16 valve gasoline engines ( injector , carburetor). In this article you will find a description of the fuse and relay blocks of the VAZ 2110 2111 2112 with diagrams , photographs and their locations. Electrical connection diagram. Let's highlight the fuse responsible for the cigarette lighter.
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The purpose of fuses and relays in your VAZ 2110 (2111 / 2112) relay may differ from those presented and depend on the year of manufacture. The current purpose can be printed on the block itself.
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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.
Main unit
The main block with fuses and relays is located in the cabin, on the left side, under the control panel. To access, press the latch switch.
Photo - diagram Option 1
Scheme Option 2
Scheme Option 3
Description of fuses
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| F1 | 5A Lamps for license plate lights. Instrument lighting lamps. Side light indicator lamp. Trunk light. Left side marker lamps |
| F2 | 7.5A Left headlight (low beam) |
| F3 | 10A Left headlight (high beam) |
| F4 | 10A Right fog lamp |
| F5 | 30A Electric motors for glass door lifts |
| F6 | 15A Portable lamp |
| F7 | 20A Electric motor of the engine cooling system fan. Sound signal |
| F8 | 20A Rear window heating element. Relay (contacts) for turning on the heated rear window |
| F9 | 20A Recirculation valve. Windshield, rear window and headlight cleaners and washers. Relay (coil) for turning on the rear window heating |
| F10 | 20A Reserve |
| F11 | 5A Starboard side marker lamps |
| F12 | 7.5A Right headlight (low beam) |
| F13 | 10A Right headlight (high beam). High beam warning lamp |
| F14 | 10A Left fog lamp |
| F15 | 20A Electric seat heating. Trunk lock lock |
| F16 | 10A Relay - turn signal and hazard warning light switch (in hazard warning mode). Hazard warning lamp |
| F17 | 7.5A Interior lighting lamp. Individual backlight lamp. Ignition switch illumination lamp. Stop lamps. Clock (or trip computer) |
| F18 | 25A Glove box lighting lamp. Heater controller. Cigarette lighter. |
| F19 | 10A Door locking. Relay for monitoring the health of brake light lamps and side lights. Direction indicators with warning lamps. Reversing lamps. Generator excitation winding. On-board control system display unit. Instrument cluster. Clock (or trip computer) |
| F20 | 7.5A Rear fog lamps |
Fuse number 18 at 25A is responsible for the operation of the cigarette lighter.
The fog lamp fuse is installed separately in the instrument panel niche behind the main unit.
Relay purpose
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- K1 - lamp health monitoring relay
- K2 - windshield wiper relay
- KZ - relay-breaker for direction indicators and hazard warning lights
- K4 - relay for low beam headlights
- K5 - headlight high beam relay
- K6 - additional relay
- K7 - rear window heating relay
- K8 - rear fog lamp relay
Electrical diagram of the block
What is a starter relay
The mechanism is designed to supply power to the electric starter motor. At this moment, charge is transferred from the battery. Simultaneously with the supply of energy, it performs the function of pushing out the bendix, while the element engages the flywheel. The starter relay on the VAZ-2112 determines whether the main mechanism will start and the engine will fire or not. If suddenly this device fails and does not turn on, you need to diagnose and repair it. To do this, you should study the detailed operating instructions and find out where the starter relay is located on the VAZ-2112.
Reasons for premature failure of fuses
- A natural factor is the duration of operation without intermediate prevention;
- Ingress of moisture, formation of condensation, oxidation of terminals, drying out of the insulating layer, open circuit of the electrical supply;
- Mechanical damage, accident, impact, 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
Device
The part looks like a small square box with four connectors. It consists of an armature in a housing containing an electromagnet with a winding. Its operation is ensured by electrical contacts and return springs.
The electromagnet is represented by two independent coils with holding and retracting independent parts. The first of the devices is docked with the housing and connected to the control input. The retractor coil goes to the control terminal and communicates with the starter motor.
Principle of operation
The relay is necessary to start the engine system, so it was built into the fuel pump. When power is applied to a contact communicating with the control, electromagnetic induction appears inside the coil. This occurs under the influence of current, through this process a magnetic field is created. The attraction of the armature contributes to the compression of the return spring.
At the same time, the bendix is pushed out, which connects the engine and starter using a flywheel. The positive terminal supplies power to the pull-in winding. In this case, the contacts are closed to each other. At this time, the armature is located inside the coil, in which the magnetic field ceases to be generated. When the power plant starts, the power is turned off, and the armature is sent to its original position using the return force. The contacts open. During this process, the bendix stops interacting with the flywheel.
Structural features
Drivers call a device such as a starter a starter, as it helps to start the car. It is practically no different from similar mechanisms. However, if you need to purchase a starter relay for a VAZ-2112, then you need to remove the part from the car and take the store with you. This element differs from similar ones in size. You can purchase a device from the VAZ-2111 or 2110 models, as it is completely identical.
On the twelfth model of the Zhiguli, the installed starter is of modest size. However, this small device is very functional. The technical documentation describes how the structure of the mechanism differs and where the VAZ-2112 starter relay is located. In the photo you can see the main and additional blocks.
These cars were equipped with injection power units with 16 valves. To prevent electrical current fluctuations, a relay is used. When the electrical circuit is turned on, this device passes current, gradually equalizing the voltage to a value of 80-340 amperes. This scatter of indicators is explained by the fact that the relay produces the first parameter in a resting state, and the second in operating mode. As soon as the vehicle stops, this circuit opens and the circuit shuts down.
Replacement
In fact, it is theoretically possible to repair the relay. But in reality this is rarely justified in terms of financial and time costs.
A much simpler and more rational solution is replacement. The procedure will not take much time, but the unit will definitely work properly and reliably. It is unknown what the result of the repair will be.
If the relay is incorrectly repaired, this can lead to blocking the start of the power unit. The cost of repairing such a problem is much higher than buying a new high-quality relay.
Replacing and installing a new solenoid relay will not be a problem, since the procedure is performed in the reverse order of disassembly.
Proceed with caution, keeping an eye on each item you take apart and put back together. Clean some contacts, if necessary, tighten loose fasteners. Whatever one may say, as the car is used, it shakes violently and vibrates, which leads to the banal loosening of nuts and bolts. What's most interesting is that this often leads to a whole range of problems. Therefore, make sure that each individual fastener is securely fastened.
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Where is the VAZ-2112 starter relay located?
In order to diagnose or repair this mechanism, you need to find a small cover at the bottom of the torpedo. There is a special button for fixing, which folds down. You can study the diagram attached to the instruction manual. It is marked there where the VAZ-2112 starter relay for 16 valves is located. If you are going to remove or replace this element, you need to carry out the repair and then install all the spare parts in the reverse order. It is recommended to use the instructions from this block.
Looking at the VAZ-2112 starter relay in the photo, you can see that additional safety devices were installed on top of the block. They were intended to protect a specific group of devices. However, the default starter relay is on the right side second in line when viewed from above.
How to check device operation
When any devices on the car stop working, the driver should first check the serviceability of the fuses or the relay circuit. After a complete diagnosis has been carried out, it will be possible to draw a conclusion about what exactly has become faulty and how to fix the problem. Diagnostics are performed in the following order:
- Take two small wires 35-45 cm long and connect them to the battery
- Directly connect the wire coming from the negative terminal of the battery to the relay, taking into account the polarity. Do the same with the wire that comes from the terminal with a positive charge.
- After connecting the VAZ-2112 starter relay, make sure that the relay has retracted the core, and a characteristic click should be heard
- If retraction does not occur, then the relay is faulty.
When the diagnosis has been completely carried out and the cause of the breakdown has been identified, you need to replace the old relay. In this case, it is recommended to inspect the starter and perform its maintenance for preventive purposes. To do this, unscrew the back cover after all the dirt has been cleaned from it. Then the condition of the Bendix brushes and forks is determined. Experts advise inspecting the starter regularly so that it does not fail somewhere along the way.
Examination
Installation and connection of an additional starter relay
To make checking more convenient:
- Take two wires 30-40 centimeters long and then connect these wires to the battery
- Then you need to directly connect the wire that comes from the negative terminal to the corresponding terminal on the relay, then connect the wire that connects to the positive terminal
- The relay should retract the core with a characteristic click.
- When this does not happen, then the cause of the problem is really the relay, install it back, you can screw the starter back
- When replacing a relay, it is definitely worth performing preventive maintenance for the starter itself.
- Unscrew the rear cover, having first (if necessary) cleaned the dirt from it, and inspect the condition of the brushes, except for the Bendix fork
- If you find that the brushes or fork need to be changed, then it is best to do it right away, otherwise soon you will definitely have to remove the starter again and repair it
Causes of breakdowns
The most important reason for the malfunction of the VAZ-2112 starter relay is the burnout of the contact plates located inside. Other breakdowns that also often occur in this mechanism include:
- short circuit of the negative terminal;
- clogged contacts
- malfunction of the armature on the solenoid relay;
- winding burnout;
- broken wiring.
These relay malfunctions occur due to the use of low-quality consumables. They quickly fail and wear out. Experienced drivers already determine by the sound of the engine when a breakdown occurs. For example, after turning the key in the ignition, the starter continues to rotate, but the engine is idling, or with a characteristic buzzing sound when the engine develops medium speed, but the starter does not turn off.
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- The controller controls the on/off of the additional starter relay depending on the crankshaft speed and the time the starter cranks the engine.
- After setting the ignition key to the “Starter” position and the crankshaft rotation speed not exceeding 500 min1, the controller sends a signal to an additional relay and thus turns on the starter.
- After being turned on, the starter will work until the ignition key is in the “Starter” position for no more than 20 seconds, provided that the “correct” password has been received from the immobilizer and the crankshaft speed has not increased to 500 min1. This prevents the starter from turning on when the engine is running and its overheating during prolonged cranking.
In other words, why do you need an additional starter relay:
- To protect the starter from accidental (due to wear, prolonged starting) sintering of contacts in the ignition switch;
- In order to turn off the power to the starter when the engine has started, but the key, for some reason, continues to be in the “starter” mode;
- Relieves the load on the ignition switch contacts.
How to check the additional starter relay, is it installed in the “ten”?
- First, check the presence of an additional starter relay in the mounting block. This relay is mounted and is indicated by an arrow in the photo.
- Secondly, you can check its operation as follows: turn the starter in the cylinder purging mode, after 12-13 seconds the starter should turn off automatically.
Installing an additional starter relay
By the way, stores have a kit of additional starter relays for self-installation. For example, a kit from Avtoelektronika, which contains everything necessary for installation, however, the circuit included in the kit turned out to be unfinished. For the additional relay to operate correctly, it was necessary to add a 1A direct current diode to the circuit (1N4000-1N4007 or the Russian analogue KD243(A-Zh)).
The absence of an additional starter relay does not mean that there is an urgent need for it. For example, many foreign cars do not install such a relay either. And car enthusiasts whose relay has failed do not see the difference after dismantling it, so it makes sense to devote time to other modifications to the car’s electrical system.
How to remove
In order to remove the VAZ-2112 starter relay, you need to disassemble the entire system. Therefore, this mechanism is removed along with the starter. On the other hand, this is even better, because at the same time as repairs, you can prevent starter breakdowns. To remove the starter, you need to drive onto an overpass or inspection hole. Further removal of the part is carried out in this order:
- Disconnect the battery, thereby de-energizing the vehicle.
- Remove the mudguard or other protection
- Find the nut at the bottom of the starter and unscrew it
- Disconnect the terminal located on the solenoid relay
- Remove the top nut that holds the starter in place.
- Unscrew the tape with a flat-head screwdriver and remove the relay by pulling lightly on the housing.
If this block is removed with force, then you need to lift it a little to unhook it from the fasteners. You need to be careful not to lose the spring located inside the mechanism. Often she jumps out and gets lost. Now that the device is disconnected from the starter, you can perform troubleshooting and find out why it broke.
Repair
When you already know where the VAZ-2112 starter relay is located, you can begin to repair it. It is not necessary to immediately buy a new part; experienced drivers will try to fix it first. The device has only three outputs that are needed to connect wires. The first is designed to supply electricity to the ignition switch. When the key is turned, the contacts close and the required voltage is transferred to the relay coil.
Other outlets have a larger diameter. They are designed to connect to the starter and battery. Most often, the contacts on the coins become clogged or oxidized. To fix the problem, you need to unscrew the bolts and remove the nut and washer, which is located at the relay output.
After this, you need to disconnect the outputs from the winding using a soldering iron. Soot and other blockages on the heels are removed using fine sandpaper. If the wear of these elements is too severe, then it is better to replace the VAZ-2112 starter relay. There is no need to replace the device if the electrical wiring is broken. In this case, you just need to replace the wires, and the relay will work properly again.
Additional starter relay
To make the starter last longer, an additional VAZ-2112 starter relay is installed. This is necessary for the controller responsible for the proper operation of the car. When the crankshaft accelerates to 500 rpm, the controller commands an additional relay to turn on the starter. This operating mode prevents accidental starting of the starter and prevents engine overheating even during prolonged operation.
Also, an additional relay for the VAZ-2112 starter is needed in order to prevent accidental sintering of the contacts from the ignition switch. This often occurs due to wear of parts. In addition, an additional element turns off the starter power in a timely manner if the power plant is already running and the key is in the “starter” mode. In this way, the ignition switch contacts are relieved and the engine is not damaged.
This device was not installed on all models. Nowadays, when purchasing VAZ-2112 cars, car service technicians recommend first checking whether it fits on the car. To do this you need:
- Inspect the mounting block. This is a plug-in type relay, so it can be easily seen among other fuses.
- Start purge of cylinders. If there is an additional relay, the starter will turn on automatically.
If this element is not on the car, you can install it yourself. However, experienced repairmen claim that there is no urgent need for it. Moreover, manufacturers of modern domestic and foreign cars often abandon this mechanism.
Starter connection diagram 29.3708 for VAZ 2108, 2109, 21099 cars: 3 comments
Checking and replacing the VAZ 2107 starter relay
In this article, we will be much more interested in the second relay, which is responsible for the operation of the starter, namely the retractor. Also look at how much charge the battery has. And now he saves 35 rubles a year on gasoline!
Replace the core. Register on the site 2.
We conducted a little investigation and came to the following conclusions, yes, from the factory on VAZ cars, a starter relay was installed.
If the starter does not turn off, then the relay is missing. Most often, such a start indicates wear of the teeth on the Bendix gear or the teeth of the engine flywheel.
To understand why a starter solenoid relay is needed, let’s look at the engine’s operation schematically. Other possible schemes are no different from the one described.
We conducted a little investigation and came to the following conclusions, yes, from the factory on VAZ cars, a starter relay was installed.
The problem is not constant, this can happen once a week, maybe every other day. VAZ starter relay wiring diagram. SOLVING THE PROBLEM WITH THE IGNITION SWITCH VAZ 2110 2111 2112
