Why doesn't the VAZ 2115 reverse? The reverse light doesn't light up - what to do?

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Reverse sensor

(DZH) - is a device that activates the reversing lights (white) when you engage the appropriate gear and start moving in reverse. In this way, you notify motorists (pedestrians) standing behind you of your intentions, that is, that you are going to drive in the opposite direction.

Today we will talk not only about what this sensor is, but also how to check it if it malfunctions and replace it with your own hands, if necessary.

I would like to note right away that non-working reverse lights are not conclusive evidence that the reverse sensor is faulty; perhaps the reason is quite trivial, for example, a wiring has come loose or a light bulb has burned out. Therefore, in order not to make unnecessary movements, make sure that the reason is in this sensor, and not in the light bulb or wiring.

Additional reasons why the lights do not light up when reverse gear is engaged:

1. , which is connected by a DZH chain and lanterns;
2. Failure to fit the reverse sensor;
3. The contacts of the flashlights have oxidized;
4. There is no wiring contact between the fuse block and the plug.

Where is the reverse sensor located?

The DZH can be seen if you drive onto an overpass and climb under the car, there will be two sensors on the gearbox, one of them is the , the second is the reverse sensor

.

Symptoms of a faulty reverse sensor

You put the car in reverse, but the lights do not come on, although both the bulb and the wiring are in good condition.

Reverse gear of VAZ 2114 does not light up

Faulty rear lights on the VAZ 2114. Maintenance and prevention

Frog accessory. this is the device you need. As they say, “the language of a motorist”: everything in the car must work properly, safety depends on it!

Therefore, if the reverse lamp is broken or short-circuited at the slightest level, repair it immediately. This can be done either at a service station or at home, quickly and painfully easily. And this theoretical basis will be a good help!

Reasons for reverse failure

What can, however, lead to a bad tail light?

There can be many circumstances, which means that every driver should know how to fix such problems.

Removing the Rear Panel

First you need to remove the rear dimensions of the VAZ 2114, and for this you will need:

What kind of lighting do you prefer?

Built-in Chandelier

Now the light holder and light bulb are open, which you also need to get. The frog mounting pins are removed and the light is in hand. The main thing is not to confuse it with the speed sensor, which is also located on the box.

How to check the functionality of the frog?

The contacts from the sensor are removed and clamped together, after which the ignition is turned off. If there is light, the sensor must be replaced. And if not, the problem is in the circuit, and the frog works.

When the reverse light is off, it is often necessary to replace the old sensor with a new one.

• park the car on the overpass;
• install the handbrake;
• Unprotect;
• remove the contacts of the old sensor;
• replace the tank and remove the frog;
• Unscrew the faulty device and replace it with a new one.

Next, let it sit for a while and check the oil in the box. We fill it to the appropriate level and put the entire structure back together.

Attention, the cost of a new sensor is within 250 rubles.

The next option, if the rear gearbox does not light up on a VAZ 2114, means a problem with the light bulb. To replace it, disconnect the wiring block, remove the plastic contact panel from the lamp, squeezing the side fasteners.

Turn the flask counterclockwise and gently press down on the cartridge. take it out. Now we install the last one, check the contacts and put the entire unit back together.

We visually assess the condition of the wiring, if necessary. we clean the wires, check for breaks using the bell method, check the contacts on the film headlights.

Fuses blowing are a common cause, but you need to know exactly where they are and how they change.

The elements are located in the fuse box, which is located under the steering wheel on the left. This is removed with just one touch of your hand. Don't unscrew anything.

When the reverse lamp does not light, check the condition of the fuses. How to do it? You can visually look at the fuses and detect a breakdown. integrity of the middle part.

How to check the reverse sensor on a VAZ 2114?

1. Disconnect the power wires from the reverse sensor.
2. Connect the wires directly to each other.
3. Turn on and .

Conclusions:

• If the lights are on in this position, the sensor is faulty and must be replaced.
• If even in this position the lights do not light up, the reason is in the circuit, the sensor most likely has nothing to do with it.
• Using a tester or multimeter, measure the voltage on ground and the orange wire that comes from the DZH; if there is voltage, you need to check the board of white lights, as well as the contacts. There may be no contact between the fuse box and the sensor contacts.

Symptoms and malfunctions of the reverse sensor

You put the vehicle in reverse, but the rear lights do not work. There are three options here: the reverse light has expired, the power fuse has blown, or the sensor itself has failed. But how can you check the reverse sensor and make sure that it is the one that is faulty?

Take a few simple steps:

1. Remove the fuse and check its integrity. In the VAZ 2110 it has number 19 (rated current - 7.5 A). The mounting block itself is located under the instrument panel.

2. Make sure the lamp is intact. If there are also no complaints about it, then you can proceed directly to checking the sensor.

Replacing the reverse sensor on the “fourteenth”

To replace the sensor you will need: a new reverse sensor, an overpass, transmission oil, as well as empty containers and rags. The fact is that when you unscrew the old ESD, oil will flow out of the hole.

1. Drive the car into the pit and place it on.
2. Remove the engine crankcase protection.
3. Remove the contacts from the DZH
   .
4. Carefully clean the work area from dirt and dust.
5. Bring the container prepared for the oil to the reverse sensor and unscrew it.
6. Try to quickly remove the old ESD and install a new one in its place, then quickly tighten it until it stops.
7. Connect the power wires to the new sensor.
8. Wipe off all remaining oil using a rag.
9. (add oil if necessary) and make sure the new reverse sensor is working.

The fact that the car is moving backwards is signaled by white lamps, which are located at the rear of the car. If the car's reverse lights are not on, it will create an emergency situation - road users will not be able to predict its (that is, your) maneuvers. And parking in the dark will become a very difficult task - you will hardly be able to see anything without lighting.

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The site provides reference and technical documentation on repair and maintenance, reviews of production and tuned cars, as well as articles and news. The site is a club for owners of VAZ cars of the Samara line: 2108, 2109, 21099, 2113, 2114, 2115.

#1 igorv96

• Users
• 16 messages
• Car make: VAZ 21099
• From: Murmansk

• BestboyMr likes this

#2 P@vel2

• Car make: VAZ 2107-21083-21053-21083-2114-Toyota Corolla
• From: Barnaul

VAZ 2115 The reverse lights do not turn on. I removed the connector from the reverse switch and shorted it and it won’t turn on! The lamps and contacts appear to be intact (all). What else can you do? Please tell me? Another question, why are there other lamps next to the reverse lamps (like stop lights, when they should be working?)

• igorv96 likes this

Causes of the malfunction and ways to eliminate it

If the reverse lights of a VAZ 2114 do not light up, the reason may be as follows: 1. The light bulb has burned out. We simply replace it with an identical part. 2. Fuses are defective. Replace fuse F 16 and check the others. It is possible that the reason lies in one of them. 3. Contacts have oxidized. Remove the taillight block and clean all the contacts there, as well as at the 3/4 sensor. 4. A situation in which the reverse gear of a VAZ 2114 does not light up may occur due to the fact that there is no ground on the board (located under the lamp). We put it in place or just tighten it. 5. The power supply wire of the Z/X sensor is broken. We find an open circuit and fix it. 6. The travel sensor is faulty. This part must be checked, since it is a common reason why the reverse lights of the VAZ 2109, as well as many other car models, do not light up. Place the car on the overpass, disconnect the wires from the “frog” and connect them “directly”. Turn on the ignition and reverse gear. If the light comes on, this means that the sensor is faulty and needs to be replaced. 7. The contact located on the headlight film has burned out. But this is one of the most common cases when the reverse gear of a VAZ 2115 does not light up, since this malfunction is a “disease” of all Lada SAMARA cars. You can cure it by replacing the standard board with an improved one, or by installing the contact group yourself. We present to your attention some examples of such improvements.

That's all we wanted to tell you about this important and responsible topic. We hope you don’t need to explain how to change the reverse light on a VAZ 2114 or change any of the fuses. However, all other work to “eliminate” this problem is also not particularly difficult.

The reverse sensor is a fairly reliable element in the VAZ device, but at some point it can still fail.

This is easy to determine, since in this case the corresponding lights on the car stop working. However, something else is interesting here: the white lights could well have failed without breaking the sensor. To understand the situation, let's try to outline the range of possible problems.

As we have already found out, this device is responsible for turning on the rear lights on the car. If the white light does not appear when the driver backs up, then a pressing problem arises. It is necessary to determine the cause of the malfunction.

Not only the sensor could break, but something else as well. For example, a fuse or some kind of cable.

And without a rear light, driving in the dark is not very pleasant. It is simply difficult to inform other road users about your intentions to move back. In addition, they illuminate the path for the driver himself.

Even if this malfunction does not seem critical (like, for example, a breakdown of the knock sensor), it still needs to be corrected. And you can do this as follows.

Place of the switch in the light switching circuit

On cars with manual transmission, voltage to the lamps when reversing is supplied through a limit switch (the so-called frog), which is screwed directly into the gearbox housing. When reverse gear is engaged, the switch button is pressed inside the gearbox. The contacts inside the “frog” bridge, and current begins to flow to the lamps.

On the circuit diagram for turning on the reversing lights, we can see that on the VAZ 1118 Kalina, the current from the battery through the ignition switch (No. 2) is supplied to fuse F1. Passing through the fuse that protects the switching circuit, “+” goes to the limit switch (No. 10). The contacts are in a normally open state and close only when reverse gear is engaged. Thus, current begins to flow to the light bulbs. The second contact of the lamps is connected to the “–” battery through the common ground contact of the lamps.

On cars with automatic transmission, the role of the limit switch lies with the selector position sensor. Information about changing the location of the gearshift knob is transmitted to the engine ECU, the light control unit.

How to check the "frog"

1. Remove the headlight switch chip.
2. Turn on the ignition.
3. Using a small piece of wire, connect the contacts of the reverse gear sensor connector to each other.

If the reverse lights are on, then the problem is in the “frog”. Some drivers disassemble the switches, clean the contacts, after which the device continues to work properly. It is up to you to judge the appropriateness of such measures. But keep in mind that on many cars (including VAZ models) the limit switch is located below the oil level in the gearbox. We recommend simply replacing the power sensor. To minimize oil loss, jack up the car on the side where the end switch is installed.

On some cars, the reversing lights do not light up due to incomplete activation of the limit switch. The problem can be solved by installing a thinner washer under the “frog”. To make sure that the switch is working, check with a multimeter in ohmmeter mode whether the contacts close when you press the button.

Checking the circuit

The essence of diagnosing the reason why the reverse lights do not work comes down to identifying the section of the circuit where the voltage is lost. To do this, you can use a regular control light. Continuity testing is done with an ohmmeter, so you need to know how to use a multimeter.

You can start checking directly from the limit switch connector. Turn on the ignition. Connect one contact of the control light to an unpainted metal part in contact with the body, and the second to the “+” connector.

• If power comes in, check the reverse sensor.
• If after installing the “jumper” in the connector the lights do not light up, then the problem is in the section of the wire circuit going from the connector to the lights. Ring the wire to the point where it divides into light bulbs on the left and right sides. Most likely, the reason is the break.

To find the pinout of connectors, light contacts, and wire colors, be sure to study the electrical diagram of your model and vehicle configuration.

Signs of sensor malfunction

To locate the device, just look at the suspension of the 14th VAZ model. There, at the checkpoint there should be two sensors - the one in question and the one indicating the speed of movement. A more labor-intensive way to get the device is to access it through the open hood.

Before diagnosing its performance, possible causes of failure should be taken into account.

These may include the following:

• oxidation of contacts;
• lack of contact with the transmission wiring;
• lack of contact with the fuse console;
• failure of one of the fuses (for example, F16);
• sensor looseness;
• broken wires;
• bulb malfunction.

The last point should not be discounted, since the lamp can also fail. It’s trivial to burn out, in other words. In this case, the reverse sensor 2114 itself will work properly. To find out the truth, you need to take matters into your own hands.

VAZ 2114 (2113) stops do not work

The VAZ 2114 (2113) car is equipped with brake lights in the rear lights (one in each light).
Plus, an additional brake light in the spoiler on the rear door. There are few reasons why the brake lights of a VAZ 2114, 2113 car do not work. Let's list them all and try to figure out this problem ourselves.

Stop lights (brake lights) of VAZ 2114 (2113) do not work, causes of malfunction

Either one brake light or two at once may not work.

— The brake light bulb in the rear light has burned out

Most often, only one lamp burns out, but sometimes two lamps burn out.

Brake light (stop) lamp in the rear light of a VAZ 2114 (2113) car

In this case, you will have to replace the lamp with a new one or a known good one. The brake light uses a P21W lamp. Similar lamps for the turn signal, reverse light, and fog light are in the same rear light. They can be used to check the brake light by replacing it.

— The contacts in the stop lamp socket have oxidized

In this case, a “break” occurs in the electrical circuit of the lamp. Most often, in this case, one brake light will not work, while the other will be on.

Cartridge and contacts of the brake light lamp in the rear light of VAZ 2114, 2113

To restore contact, you need to turn the light bulb in the socket several times, or remove it and clean the oxidized contacts with fine-grained sandpaper.

— The wiring block for the rear light is faulty (chip)

Either it is not securely fastened, or the contacts have oxidized. In any case, there will be an open circuit in the electrical circuit.

Performance diagnostics

After you have found out where the VAZ 2114 reverse sensor is located, you can begin diagnostics. To do this, you may need light bulbs with wires or a tester. However, there are ways to do without their participation.

The verification procedure itself should proceed as follows:

1. The hood must be opened and the cover removed from the fuse console.
2. Then check 15A, who is directly responsible for its operation. If the white light does not come on after replacing the fuse, the diagnosis continues.
3. The ignition must be turned on to record electrical voltage on the console. If it is not there (and its indicator should be 12 V), then it is likely that the contacts have oxidized. If there is, the check is carried out further.
4. And then you need to crawl under the car. The protection is removed from the electric motor, the ignition and the corresponding gear are turned on. Now you can see whether voltage has appeared at the sensor connector or not.
5. As mentioned above, if there is no tester with an arrow, you can use a test light. Its glow should make it clear about the existing voltage.
6. Then comes the key point: it is necessary to short-circuit the conductors of the sensor in question. When the light appears, all that remains is to state the fact that the VAZ 2114 reverse sensor needs to be replaced.

After completing the diagnostics, you can begin the replacement procedure.

Causes of failure

The main reasons for malfunctioning reverse lights are as follows:

• light bulbs burned out;
• fuses are blown;
• oxidation of contacts in lamp sockets occurred;
• lost contact with the mass;
• the reverse wires have broken;
• the reverse sensor (otherwise called the frog) is broken;
• Damage has occurred on the contact board.

Thus, if the reversing lights of the VAZ 2114 do not light up, then the problem lies in one of the reasons given above. For a more accurate search, you should check all the specified elements one by one, starting with the light bulbs and their sockets and ending with the contact board and the sensor itself. And if the simplest faults can be eliminated almost instantly - by replacing light bulbs or wires, then replacing the reverse sensor requires a more serious approach.

Replacing the sensor

This procedure is carried out quite simply. Since you need to get under the car, it is strongly recommended to drive it into a pit. In this case, the device will be perfectly visible.

Attention! It should be noted here that contacting a car service will cost much more. Replacement there will be carried out at the price of 2-3 sensors.

Therefore, it is worth performing the procedure yourself. The main thing here is not to waste time installing a new device. If you miss the right moment, oil may pour out of the hole directly onto your clothes. It is better to prepare a basin in advance.

The step-by-step replacement plan should look like this:

1. The sensor contacts are released from protection and then disconnected.
2. The device is unscrewed with a 22mm wrench. If the tool turns out to be powerless (and this is possible due to the proximity of oil), then you need to arm yourself with a hammer and chisel. True, you should be extremely careful here so as not to splash too much.
3. Immediately after removing the faulty sensor, you need to screw in a new one. The reason for such efficiency has already been explained above. By the way, the box should be wiped clean of oil if it has leaked.
4. Contacts and protection are returned to their place.
5. If necessary, add oil.

Attention! Some car enthusiasts offer an alternative behavior with oil. According to their method, you should get rid of it in advance, so that you can put it back in with peace of mind and clean clothes.

After replacement, you should check the device for functionality: turn on the ignition and reverse gear. In this case, there is no need to start the car.

How to search for this device

It is not difficult to find the place where the reverse sensor is located. Two devices are installed at the checkpoint, one of them will be the DZH. It is installed at the bottom of the gearbox. This can be clearly seen in the figure below.

Location of the household farm

You can get good access to it when the machine is on an overpass, a lift or above an inspection hole.

The purpose of this device is that when reverse gear is engaged, it should light up a white light in the lamps. The lack of lighting does not mean that it is him. There can be many reasons for this. For example, a light bulb or fuse has burned out, or a wire has come off.

About the signs of a DZH malfunction and its search

It is safe to say that there can only be one sign when the rear sensor does not work, this is the absence of lighting when driving the car in reverse. But there are quite a few culprits for this. It could be:

1. Fuse F16 (15A) has blown;
2. Oxidation of contacts in flashlights;
3. Poor contact of the connector with the fuse block;
4. Broken wires;
5. The sensor output terminals have oxidized;
6. The light bulb has burned out.

Often the culprit of such problems is the light bulb socket, where oxidation of the contacts occurs due to poor sealing of the lamp.

Troubleshooting

In order for the frog to be replaced, you need to prepare:

• New DZH;
• Adding oil to the gearbox;
• Key to "22";
• Rags for cleaning dirt from the installation site;
• Empty containers for transmission oil, since in the case when the VAZ 2114 reverse frog is changed, a small amount may spill out of the installation hole.

The machine must be installed on an inspection hole, on a lift or overpass. tighten. To make the work easier, you need to remove the engine crankcase protection. After this, you need to proceed as follows:

1. Determine where the VAZ 2114 reverse sensor is located and remove the connector with wires from it;
2. Clean the installation site of the DZH from dirt with a rag or other means;
3. Using the key “22” they begin to unscrew the device. In some cases this can be difficult to do. Over a long period of use, it can “stick” to the body of the box. A socket wrench for “22” helps out. If this does not help, there is still hope for the “old-fashioned method” - using a small chisel and hammer;
4. After the DZH has been moved from its place, an empty box is placed under its installation location, the spilled transmission oil is collected, and the device is removed.

Installation is carried out in the reverse order, having previously wiped the plane of the box where the DZH will be installed. Before installing a new product, it will be useful to perform a functional test. It's easy to do. You need to connect the measuring device to its terminals, and use your fingers to press the protruding rod several times. The device should show it turning on and off.

If there were traces of leaks on the old DZH, the new product can be installed on a thin layer of automotive sealant. Tighten the device carefully, being careful not to damage the plastic part of the housing.

Check the oil level in the gearbox and add it if necessary. After checking the functionality of the system, the engine protection is put in place. The work is now complete.