Why the instrument panel of the VAZ 2114 injector 8 valves does not work

You can try to find a possible reason why the instrument panel of the VAZ 2114 does not work on your own. However, to do this you may need to remove it and then reinstall it. If you are not ready for this, contact a specialist. But, before getting to work, it is recommended to check the elementary places where the solution to the problem may be hidden.

The instrument panel of the VAZ 2114 does not work, and this breakdown caught you on the road and there is neither the desire nor the opportunity to thoroughly bury yourself inside the car. Initially, you need to check how well the positive wire going to the source object is secured. Quite often, the front seat passenger touches it and pulls it out of the terminal. In this case, you need to fasten it in place and securely fix it so that the situation does not repeat itself.

After this, it is recommended to check the integrity of fuse F3. If you find a burnt one, insert a new one and drive to your house or garage. There is no point in dwelling on this; if it burns out, then the situation may repeat itself, so it is advisable to find the reason that led to this. In most cases, this happens because the car was in a car wash and water got inside, which shorted the system. This situation happens on cars that have traveled more than one hundred kilometers.

If you find a fuse that is intact and not blown, you do not need to put it back in place. First of all, check your contacts. It is quite possible that its seat has oxidized due to time and moisture and turned into a so-called dielectric. Basic cleaning of the oxide solves the problem. Having found traces of oxidation, it is recommended to check the remaining sockets; it is quite possible that you have been driving for a long time without the brake lights or turn signals lighting up.

Healthy!

There is such a concept as “metal fatigue”, which means the loss of the composition of its standard characteristics. Therefore, on older machines it may be necessary to completely replace the fuse box.

If all the described verification methods can be performed on the road, then the following actions imply an in-depth search for a solution to the problem. First of all, you should pay attention to the ignition switch. The contacts in it may burn out. Although this happens infrequently, it should not be ruled out. In this case, the element is removed, a check is performed, and the detected bad contacts are cleaned. Sometimes it may be necessary to install a new ignition switch.

In addition, we can name a couple more cases when repairs may take some time:

Burnt tracks on the board are not repairable. In this situation, everything can be solved by installing a new circuit. You shouldn’t be afraid of this, its cost is not high, and you can replace it yourself.
A break in the electrical wiring can be called the most complex, unpleasant and difficult to identify type of breakdown. In this case, power is not supplied to the instrument panel or one of the indicators and it stops working. The fault is determined using a multimeter. The required wire is called, the location of the break or poor contact is determined and, if necessary, replaced or cleaned.

Healthy!

If the dashboard lighting suddenly goes out, check the lamp brightness adjustment knob. It is quite possible that the child who was sitting in your car before unscrewed it, setting it to minimum.

If problems are detected in the operation of one of the sensors or devices, you need to take into account that the reason may be hidden inside the panel, in the indicator itself. For example, a crack in a gear will cause the odometer to no longer show the distance traveled. In this case, everything can be solved by simply replacing the plastic part that has become unusable with a new one. A frequent malfunction of the brand, associated with the fact that the arrow of the fuel level indicator lives its own life, is explained by the fact that the float located in the gas tank is incorrectly located and periodically sticks to the wall. Thus, it can show a full tank when 5 liters are filled and vice versa.

Why does the VAZ 2114 instrument panel not work? A massive problem in our auto industry

The search for possible reasons why the VAZ 2114 instrument panel does not work periodically worries one or another owner of cars of this model.
It’s clear that if you don’t see a single parameter on the dashboard, you can only drive, as they say, by touch. True, there are certain specialists who still managed to somehow crawl to the base without all the evidence, but somehow I don’t want to follow their example. And is it necessary to create additional troubles and the risk of accidents on the road? So the majority of those to whom this incident happened still get to work (or wherever they were going) by public transport in order to return to solving the problem in the evening on their own or with the help of a familiar mechanic.

Why does the VAZ 2114 instrument panel not work? Offhand, we can name several reasons. However, they may not exhaust the entire list, since the individual characteristics of the car may appear. We will try to talk about this and many other equally interesting things in our article today.

One or more light bulbs do not light up

In this case, there can be two situations:

The backlight of the VAZ 2114 instrument panel does not light up;
One or more warning lamps are not working.

Let's consider the first variant of malfunctions, when the backlight of the VAZ 2114 instrument panel does not work. You must begin checking the functionality of the backlight by checking the serviceability of the fuse in this circuit. This only applies when all the backlights are off.

The fuse box on this model, as well as on the VAZ 2113 and VAZ 2115, is located in the engine compartment on the driver's side. You need to remove its cover and find the fuse responsible for the backlight, this is F10. It is designed for a current of 7.5 A. If it burns out, replace it with a new one and check the operation of the backlight paws.

Further events can develop as follows: either everything works or it doesn’t. If the instrument panel backlight works, the test ends here, otherwise it is necessary to continue troubleshooting. It may be due to poor contact of the connectors or an open circuit in the power supply of the backlight lamps.

To find and eliminate these problems, you need to remember the basic concepts of the laws of electrical engineering, and have a car LED electrical circuit tester, tester or voltmeter. If there is neither one nor the other, then it is better to seek help from an auto electrician.

The situation is much simpler when one or more, but not all, backlights are off. Burnt out light bulbs are simply replaced with known good ones. From the practice of auto electricians, we can conclude that in most cases a fuse or light bulb blows. It rarely comes to troubleshooting using instruments, but sometimes it happens. You should be aware that if a replacement (new) fuse blows repeatedly, you should look for a short circuit in the electrical circuit.

In the second case, they do approximately the same, but take into account that there are no fuses for each indicator lamp. They try to replace the light bulb with a new one, if it doesn’t light up again, then the contacts need to be checked. As a rule, this is enough to troubleshoot problems. Otherwise, it is better to ask a specialist for help, because the sensor that works in conjunction with this warning lamp may be the culprit.

Dashboard lamps

The most common breakdown

Before digging into the inside of the car, check how securely the ground wire leading to the front panel is secured. A restless passenger in front often simply pulls him out of his place with his feet. To prevent the situation from repeating itself, after fastening it is worth insulating the wire from reach.

Its signs are very characteristic:

All indicators do not work: speedometer, tachometer, odometer, fuel level recorder, coolant temperature sensor;
The rest of the equipment - optics, radio, even the panel backlight - turn on normally and do not act up;
The ignition works properly, the car does not refuse to start;
Fuse F3 is almost 100% blown. It is located in the mounting block and will have to be changed. But first you need to find out why it was covered, otherwise the new one installed will suffer the same fate. In most cases, a short circuit is to blame for burnout. On well-used VAZ-2114, the fuse often blows after each wash. Instead of carrying a spare one, you need to figure out where moisture is getting into it.

If the fuse is intact , this is not a reason to immediately leave it alone. It would be a good idea to remove it and check the contacts: if the fuse is live, but the terminals are oxidized, the circuit will be interrupted, and the device will stop showing any signs of life.

The next weak link : It is the ignition relay. It is located to the left of the steering column, fixed on a pin, so to speak, upside down. You need to remove it and try to make direct contact with the wires. If there are obvious signs of revival on the instrument panel, it immediately becomes clear that the time has come to change the relay.

Hard case

Until now, situations have been sorted out when the torpedo still showed some signs of life. If non-working power windows, turn signals, and windshield wipers have been added to the devices, the issue is no longer a matter of relays and fuses.

The contacts on the ignition switch are burnt. In principle, after installing the relay (even on the VAZ-2109 version), this problem rarely arises. However, the possibility remains. The lock is removed, the contacts are checked and, if necessary, cleaned;
Mounting block. There may be burnt tracks on its board. The only thing that will save you is replacing it with a new one. However, the cost is by no means astronomical, and the installation is available as a standalone option.

Private situations

General signs do not always indicate specific breakdowns. There may be exceptions.

If individual devices refuse to work, it is quite possible that this is their personal problem. You'll have to parse the specific pointer. It may have a cracked gear that needs to be replaced.

Also, why doesn’t the instrument panel of the VAZ 2114 work? If the fuel gauge and tachometer are capricious (either they function, or they don’t react at all), the contacts and the mounting block are normal - you need to do a small check.

Reset is pressed and held, and the ignition is turned on at the same time. Raised arrows indicate the need for further searches. Lifeless - that microcracks have appeared in the shield itself. You will have to remove it and examine all soldering and traces under a magnifying glass. In principle, these are all the main options. If calling all the listed components and parts did not lead to the revival of the instrument panel, your case is individual, and you will have to determine the situation in the company of an experienced auto mechanic.

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Source

Tidy 2115: description and purpose of buttons and knobs

If everything is simple with the levers on the steering rack, there is a headlight position switch and a turn signal switch on the left. Buttons are more difficult.

On the dashboard, the main keys are placed in a separate “strip”. To understand the essence, we present their decoding from left to right.

Switch for outside parking lights.
Activation of low beam headlights.
Front fog lights.
Rear PTFs. If not installed, reserve.
Rear window heating button.

Lada 2115: the oil light on the center panel is on

If an icon in the shape of a watering can appears on the console, this indicates that there are problems in the engine lubrication system. This is caused by a drop in the oil level in the crankcase or a pump malfunction. If the engine is old, the problem may be caused by clogged oil lines.

What does the exclamation mark on the Lada 2115 tidy mean?

On the "tag" the symbol is used in only one form - a red indicator in a circle. The icon indicates a malfunction in the vehicle's brake system. If this symbol lights up while driving, stop and find the cause of the breakdown. Usually it is enough to add fluid to the expansion tank or replace worn pads.

The battery light on the dash is on 2115

A red battery icon indicates that the battery is not charging properly. A complete diagnosis of on-board systems associated with the generator set and its wiring is required.

The instrument panel backlight has disappeared, what should I do?

The dashboard going out is a nightmare for any driver, since with the disappearance of the light, other malfunctions may follow, such as non-functioning speedometer and other indicators.

Therefore, it is worth understanding that if the instrument panel does not light up, then this problem must be eliminated immediately , but not all car enthusiasts are capable of this.

VAZ 2114 – why doesn’t the dashboard work?

Why does the VAZ 2114 dashboard not work? There can actually be many reasons, here are some of them:

Blown fuse
Burnt tracks on the board cannot be repaired. In this situation, everything can be solved by installing a new circuit. You shouldn’t be afraid of this, its cost is not high, and you can replace it yourself.
A break in the electrical wiring can be called the most complex, unpleasant and difficult to identify type of breakdown. In this case, power is not supplied to the instrument panel or one of the indicators, and it stops working. The fault is determined using a multimeter. The required wire is called back, the location of the break or poor contact is determined and, if necessary, replaced or cleaned.

Geared motor

The most undesirable malfunction is a breakdown of the wiper motor. It rarely breaks, but cannot be repaired, so it requires complete replacement. Its price is low, so it is enough to replace the assembly part and the purifier will work again. The reasons for motor burnout are as follows:

Constant loads and dry work;
Wear of internal mechanisms;
Moisture entering the housing and causing corrosion;
Mechanical failure.

Note that in order to extend the life of the motor, the windshield wiper blade must be changed at regular intervals. When the brush wears out, the quality of sliding on the glass is lost, which is why increased load is transferred to the motor. Repairing a faulty windshield wiper yourself is possible, but requires experience in working with electrical appliances and mechanisms. Finding repair kits for this part is problematic, so it’s worth considering the option of installing a new motor. The rear wiper gear motor does not require significant maintenance, but does not tolerate overloads and operation on dry glass. Also, to extend the service life, it is worth considering the size of the wipers, because... A long cleaner is more difficult to move across the glass.

The dashboard of the VAZ 2114 is out of order, what should I do?

If on a VAZ-2114 car on the instrument panel none of the indicators installed on it work (speedometer, odometer, tachometer, fuel level and coolant temperature indicators), then the first thing the driver will have to do is check the integrity of fuse F3, which is located in the mounting block. If it has burned out, then before replacing it, you need to find the reason why it burned out, otherwise the newly installed new fuse will have the same fate as the previous one. Most often, fuses burn as a result of a short circuit.

Even if the fuse is intact, then do not be lazy to take it out and check the condition of the contacts. There are cases when the contacts oxidize, and the electrical circuit in this place is interrupted. After making sure that the fuse is intact, the next step is to check the ignition relay, which is located inside the car to the left of the steering column. It is attached to a pin upside down. In the block where this relay is inserted, you can try to short-circuit the power wires using a jumper. If the instrument panel comes to life, the ignition relay will have to be replaced.

If the ignition relay is working properly, there are only two possible reasons for the instrument panel not working: the ignition switch and the mounting block. Before installing the ignition relay on the VAZ-2109 car, the lock contacts burned quite often, and they had to be cleaned by disconnecting the contact group from the lock itself. After changes were made to the principle of supplying voltage to the ignition switch, its contacts began to burn very rarely, but the likelihood of this phenomenon still remained. On the mounting block, in its board, tracks may burn out; in order to see this, the mounting block will have to be removed from the car.

Malfunctions

How to remove the instrument panel on a VAZ 2114

On modern VAZ models, fully electronic instrument panels are installed. When you start the engine, all indicator lights light up, and after 2-3 seconds they go out (if all systems are working properly). If, when you turn on the ignition, one or several light bulbs do not work, then you need to find out the reason by performing a number of characteristic actions.

If one or more lamps do not light, the first step is to replace the lamps themselves. All indicators of the VAZ 2114, like the backlight, are illuminated by LEDs, and during prolonged use they tend to burn out.

If replacing the lamps does not help, then the situation is much more serious. As you know, each indicator is responsible for some kind of system, and in the case when it does not work, the cause may be any element associated with the indicator light in one circuit. For example, if the battery charge sensor does not work, you need to check the entire circuit using a voltmeter, starting with the battery itself and ending with the terminals, high-voltage wires, etc. In the event that a short circuit or breakage of contacts occurs in the system, the corresponding light also does not light up.

Very often, a situation occurs when all indicators stop working at the same time. The reason for this failure is obvious - failure of the corresponding fuse. When you replace it, everything will fall into place.

If the speedometer or tachometer on your VAZ 2114 has stopped working, then there are not many options either. The first of them is a failure in the electrical system itself. To eliminate it, you need to remove the terminals from the battery for 10-15 minutes and install it back. Thus, the system crashes and reboots. If after these steps the device still does not work, then the reason is clearly not in the instrument panel.

Also, sometimes such a problem occurs - the panel backlight does not light up. In order to correct the current situation, you need to decide: how many lamps are not working - one, several, or all.

Installing diodes in the instrument cluster

If one or several lamps do not light, the reason is in the diodes themselves, and they should simply be replaced. If all the lamps do not light up, then the problem may be in the wiring itself. To detect this malfunction, you need to check the entire circuit using a voltmeter.

Dashboard VAZ 2114 – autotest

Some VAZ cars have a “dashboard check” function, which allows the arrows to make a full turn from start to finish. Such an auto-test of the tidy when the ignition is turned on is available on some foreign cars (Nissan, Subaru). In this article we will tell you how to do an automatic test of the instrument panel on a VAZ. Let's start with the fact that it is not possible to implement the function of checking the tidy when you turn on the ignition on every model. If you turn on the ignition while holding the mileage reset button and the arrows describe an arc, then this panel will work. As a rule, such calibration of the instrument arrows is available on AutoPribor models with one window (single-line), but again not on all versions. To modify the instrument panel you will need:

Electromagnetic relay, small-sized (12V). For example, Tianbo HJR 1-2C.
Transistor KT 503. Can be replaced with almost any npn structure.
Capacitor 100uF, electrolytic (16V).
Resistors for 1koma, 6.8koma, 22koma.

The principle of operation of the circuit: the relay, with its normally closed contacts, closes the tidy button. When you turn on the ignition, the circuit starts working after half a second, and then turns on the relay, which opens the button.

This test of arrows and dashboard indicators is already available on all modern models. The only thing is that it acts differently on different samples. For example, there may be 1 pass of the arrows, or three, or until the button is pressed, or even a pass only up to half the scales. The speed of the instrument panel arrows also depends on the manufacturer and version of the device. In other words, an autotest is a test button that automatically activates when the device is turned on. If there is a test during the standard test, then there will be one during the autotest. Therefore, doing an auto test of the VAZ 2114 dashboard is not a problem.

Wiring damage

One of the unwanted breakdowns is damage to the wiring. Small contacts, resistors and plugs are difficult to repair without tools. Lack of power to the connectors and bulb sockets leads to their malfunction. As a DIY repair attempt, you can disconnect the plugs and connectors, and then clean all contacts from oxides. In rare cases, this procedure can restore contact.

The backlight of the VAZ 2114 dashboard is not a key design component, but its absence seriously complicates the process of operating the car at night. When replacing lamps, you can carry out overexposure procedures and replace standard elements with LED ones. In addition to increased brightness, you will get a longer service life. The photo above shows a detailed diagram of the connections of the VAZ 2114 instrument panel.

How to disassemble the dashboard of a VAZ 2114

Before embarking on this complex process, the driver must carefully familiarize himself with the design and arrangement of the instrument panel on his car. When disassembled down to the cogs, it looks like this:

If you carefully study this diagram, it becomes clear how to remove the panel on a VAZ 2114. Having determined the order for yourself, you can begin the process.

Using a Phillips screwdriver, you need to unscrew the three screws holding the left console screen. For convenience, when doing this work, it is better to use a screwdriver with a short handle and blade.
When removing the screen, carefully remove the lower edge of the trim from the body bracket.
The right console screen is secured with five self-tapping screws. Using a Phillips screwdriver, carefully unscrew all the screws while holding the trim with your hand.
Remove the screen without allowing it to get caught in the wiring harnesses that are hidden behind it.
Disconnect the ground from the battery by disconnecting the connectors. If your car has a radio, disconnect it from the main bundle of wires by pulling out the connecting connector. If there is no radio installed on the car, then simply pull the wires out of the panel; they should be closed with a plug. Be sure to turn off the cigarette lighter and remove the socket with the ashtray light bulb.
Remove the handles from the heater damper control levers. To make the process easier, pry them off with a flat-head screwdriver.
Despite the apparent simplicity of this item, removing the handles from the levers can take a lot of time. To do this, a clear example is given of how this should be done on a removed unit.
Remove the electric heater fan handle by simply pulling it towards you.
Unscrew the cross-head screws securing the instrument panel to the brackets on the right and left with a screwdriver
In the window on the instrument panel, where the instrument unit is located, there are two self-tapping screws at the top and two at the bottom - under the window. It is necessary to turn them out, loosening the cover (2) and the shield (8).
Pull out the plug and unscrew the screw located behind it
Remove the two screws from the bottom that hold the trim and remove it.
Having marked the wires suitable for the switches, disconnect them.
Remove the bolts from the steering wheel bracket
Using the “8” key, unscrew the screws of the lower bracket fastening.
Unscrew the self-tapping screw and remove the light guide.
Remove the fasteners from the heating control unit and remove the cartridges from the back of the unit.
remove the decorative insert, removing all external parts.
Unscrew the nuts with a key set to “21”.
Remove the hydraulic corrector illumination.
Unscrew the upper and lower fastenings of the panel, and remove the fastening to the cross member on the left side.
Now you can remove the VAZ 2114 torpedo.
Installation is in the reverse order.

In order to clearly see the whole process in motion, you can watch a video on how to remove the dashboard on a VAZ 2114.

Source

The purpose of each of the fuses on the car

If you turn over the removed cover, then on its inside you will see a diagram of the location of the relays and fuses in the mounting block (fuse block). On it, all these elements are numbered and designated from F1 to F20. Naturally, everyone is responsible for the performance of various consumers in the vehicle’s electrical network:

Diagram with the location of fuses VAZ 2114

F1 – rear fog light and indicator lamp for turning on the latter (10 A);
F2 – turn signal breaker relay, VAZ 2114 emergency alarm, turn signals (10 A);
F3 – front and central interior lighting, trunk, trip computer and brake light bulbs (7.5 A);
F4 – heated rear window (20 A);
F5 – sound signal, cooling system fan (20 A);
F6 – power windows (30 A);
F7 – electric motor for heater, front window, washer, glove compartment lamp, cigarette lighter (30 A);
F8, F9 – fog lights, right and left, respectively (7.5 A);
F10, F11 – left clearance, as well as right, indicator for turning on dimensions, license plate lighting, as well as instrument lighting lamp, ashtrays (7.5 A);
F12, F13 – right and left low beam, respectively (7.5 A);
F14, F15 – high beam left and right, respectively (7.5 A);
F16 – turn signals, dashboard indicators – parking brake, low battery, etc., as well as a trip computer (15 A);
F17-20 – reserve respectively for 7.5, 10, 30 and 20 A.

The VAZ 2114 fuse diagram also contains backup fuses for 7.5, 10, 20, and 30 A, located in the lower part of the VAZ 2114 fuse block. Having pulled out the supposedly blown one, you should inspect it visually. If it is clear that the integrity of the thread is broken, then it can be unequivocally stated that the reason for the inoperability of the vehicle equipment lies precisely in the malfunction of the fuses. You can replace the inoperative one with a backup one of the same power according to the data that is presented to you by the diagram on the back of the plastic cover of the mounting block.