Reverse lights of VAZ 2107 do not work. There is no ground

The most common reason for the loss of the reverse light on a VAZ-2107 is oxidation and poor contact on the sensor switch located on the gearbox in the rear right part.

Due to the fact that the terminal chips are not structurally protected from the effects of water and salts from the road, they corrode, as a result of which contact with the sensor is broken and current stops flowing to the lamp lamps.

Also, the wires are not protected in any way from mechanical damage and the effects of road sandblasting. In our case, in addition to the oxidation of the contacts themselves on the sensor and wires, one of them broke.

Reversing lights are generally not a legal requirement, but they are useful. They serve two main purposes - to warn other road users that you are about to reverse, and to illuminate if you are reversing at night. The circuit is a simple mechanism consisting of one or two rear lights, which are activated using a switch. So if something goes wrong and you find that the reversing lights are not on, it will be quite easy to identify the cause of the failure.

On most cars, the switch is installed on the transmission, and it operates automatically when reverse is engaged. If you or the previous owner of the car made your own adjustments by adding lights yourself, the reverse lights can light up manually. In this case, the switch is most often installed on the dashboard, closer to the driver.

Why do you need a reversing light?

A reversing light is a light device installed on the rear of the car and is activated when reverse gear is engaged. Any reversing light has two functions:

  • Creating a small illumination of the road surface and oncoming objects when reversing in the dark. For example, when parking in reverse at night, a reversing light is simply a necessary thing. It helps us better navigate in the dark and keeps us out of trouble in the parking lot or in the yard.
  • Informative function . When you engage reverse gear, the lamp lights up with the appropriate light (daylight), which informs other road users that you are planning to reverse. There are people who have poorly developed visual perception regarding reducing the distance to objects. This means that you can start reversing into a person who will not notice it at all.

Thus, the use of reversing lights is advisable and quite desirable, so they need to be maintained in good working order, and if they are missing, they must be installed.

Tail lights of VAZ 2107: connection diagram, faults, replacement and repair, instructions with video and photos

The negative wires come from the taillight plugs (black wire) and are attached to the body. The fastening of the wires to the body should be checked for oxidation.

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Reversing sensor VAZ 2107: where is it located, how to change it Then you need to remove the connecting block with the wires, this should be done very carefully by grasping the connector body and pulling in the direction from the base. Ask, I'm in touch!

How to manually unlock the hatch door of a washing machine?

The most accurate scheme for unlocking your washing machine is in the instructions. But if the treasured document is lost somewhere on the shelves, try using the standard scheme:

  • First, if you haven’t already done so, unplug the washing machine
    .
  • Secondly, open the small hatch on the front panel (drain filter) and check if your unit has an emergency hatch release cable
    . It is usually orange in color. If there is a cable, then you need to carefully pull it, and the hatch door will unlock.
  • If the cable is not in the indicated place, then to forcibly unlock the hatch you will have to remove the top panel
    , then tilt the car back so that the drum, under its weight, also moves a little away from the front wall and frees up room for you to maneuver. Next, you need to reach the lock, by touch

    find the latch and move it to the side

    .

Note! If you are not sure that you can unlock the door yourself, entrust this work to a specialist!

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The blocker is easily damaged, after which it cannot be restored and will require complete replacement!

Read more:

The design of washing machines is designed in such a way that the door opens easily. However, there are times when errors or malfunctions occur due to which the washing machine does not open. What to do, and will you be able to cope with such a difficulty on your own? This is exactly what we will talk about next.

What to do if the VAZ reverse light does not work

There are times when the light fails and stops lighting up after we have engaged reverse gear. This creates discomfort for the driver when reversing, and also stops informing other road users of your intentions. Therefore, after detecting a malfunction, it is necessary to urgently repair the electrical circuit of the reversing light.

First of all, always check the condition of the fuse. The mounting block can be installed both in the engine compartment and under the instrument panel.

The fact is that the reverse light circuit passes through the car's ignition switch. Disassemble the lock housing and check the condition of the contacts that are responsible for turning on the reversing light. As a rule, in addition to the flashlight, consumers whose power is supplied through the ignition switch also do not work. These may be a heater fan, etc.

parking lights

Dimensions on the VAZ-2107 are activated by the leftmost of the four key switches located under the gearbox control lever . This switch is a three-position switch: the side light, along with the license plate light and instrument lighting, is turned on in the second position.


The side lights are activated by a three-position switch located under the gearshift lever.

On the fuse block, which is located under the hood of the car near the windshield closer to the passenger seat, the rear side lights fuses are numbered F14 (8A/10A) and F15 (8A/10A). In this case, fuse F14 is responsible for the operation of the side lights of the left front headlight and the right rear light, as well as:

  • a lamp indicating the operation of the dimensions;
  • license plate lights;
  • engine compartment light bulbs.

Fuse F15 is installed in the side light circuit of the right headlight and left rear light, as well as:

  • instrument lighting;
  • cigarette lighter lamps;
  • glove compartment lighting.

If one of these lamps does not work, you should check the integrity of fuses F14 and F15.

Read about repairing VAZ-2107 fuses: https://bumper.guru/klassicheskie-modeli-vaz/elektrooborudovanie/blok-predohraniteley-vaz-2107.html


Fuses F14 and F15 are responsible for the operation of the side lights.

Troubleshooting procedure

Lamps fail most often. It's best to start with them. If they are working properly, remove the plugs from the frog and connect them together. The plugs should have +12.

We recommend: Replacing the fuel filter on a Hyundai Getz car

What kind of lighting do you prefer?

Built-in Chandelier

The fuse box can only be repaired in specialized workshops. In this case, the board track could have burned out.

It is extremely rare for the brake light wire to break. The wiring harness comes out from under the instrument panel and runs along the floor of the car under the carpet. Both brake lights are connected in parallel. We check the integrity of the wire from the frog to the lights. If necessary, replace a separate stop wire.

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Brake lights on VAZ 2105, 2107 cars do not work. Moreover, the signal that both lamps on the car do not light indicates the need for a global check, since paired light elements burn out in rare cases. Ask, I'm in touch!

Main reasons

  • The fuse has blown. Both lamp bulbs are protected by one fuse link. Along with the lamps, the fuse will most likely protect some other circuits. Therefore, if on your car not only the rear lights do not start to glow, but, for example, the dashboard backlight does not work, you first need to check the fuse. You can find out which “socket” in the mounting block the lamp circuit goes through from the repair and operation department of your car. In almost all cases, the main circuits are shown graphically on the inside of the fuse box cover.
  • Limit switch faulty.
  • Open circuit (breaking pins in connectors, chafing of wires).
  • Formation of oxides, corrosion at the junctions of contacts, burning of pins.
  • Poor ground contact of the lights. In case of problems with the total “mass”, brake lights and turn signals may also NOT work. It is very unlikely that both bulbs stopped glowing in an instant due to problems with the contact in the flashlight. But a bad ground may be the reason why the reverse gear light does not light up on only one side. Obviously, in this case it is worth checking the lamp itself.

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 an ordinary control lamp. Checking the continuity of the circuit is carried out with an ohmmeter, so you should know how to use a multimeter.

You can start checking specifically with the limit switch connector. Turn on the ignition. Connect one contact of the control light to the unpainted iron part in contact with the body, and the 2nd. to the "" connector.

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

Reversing light

A reversing light is not mandatory, however, its use can significantly increase the safety of the car. This light device is activated when reverse gear is engaged and performs the following functions:

  • illumination of a section of the road and objects located behind the car when reversing in the dark;
  • informing other road users that the vehicle is moving in reverse.

The principle of operation of the reversing light is based on the closure of the electrical circuit into which the reversing lamps are connected when the ignition and reverse gear are turned on. The closure occurs using the so-called “frog” installed on the gearbox.

Fuse F1 is connected to the reversing light circuit, which is also responsible for the heater motor, rear window cleaner and washer.

Causes of malfunction

The bulb in the rear light socket has burned out

One or two light bulbs can burn out at once. Moreover, visually they may look like workers. We replace the faulty lamp with a known good one and see if it lights up or doesn’t light up. The P21W bulb can be taken from the reversing light or from the turn signal in the same rear light. We replace faulty light bulbs with new ones.

The contacts in the rear brake light sockets have oxidized

Turn the light bulb in the socket several times to remove the oxidized layer. A more radical repair would be to sand the contacts in the cartridge with sandpaper.

The contacts in the rear light wire blocks have oxidized

We remove the block and clean the contacts in it and the contacts on the rear light board. The red wire is responsible for supplying current to the brake lights (to both the right and left lights).

Fuse blown
Brake light switch sensor faulty

For a more thorough check, use a test lamp or tester to check for the presence of current in the red-white wire. Suddenly there is a break in it. Current is supplied to it from the 11th fuse in the mounting block.

Burnt out contact tracks on the rear light boards

Visually inspect the rear light boards. If necessary, check the integrity of the tracks using a test lamp or tester. You can solder wires onto a faulty track and thereby restore its functionality.

No "mass"

The negative wires come from the taillight plugs (black wire) and are attached to the body. The fastening of the wires to the body should be checked for oxidation.

The wiring blocks of the mounting block have come off, or their contacts have oxidized

Clean the contacts in the blocks (you can simply remove and reinstall them several times) and make sure they fit securely in the mounting block.

Open or short circuit in wiring

Check the main components of the brake light wiring diagram for short circuits or open circuits using the diagram below. Special attention should be paid to the red wire in the wiring harness to the brake lights. It stretches across the entire car along the right threshold. It may fray or burn out during welding.

Electrical connection diagram for brake lights VAZ 2105 Electrical connection diagram for brake lights and parking brake of a VAZ 2107 car

The plus in the brake light connection system comes from terminal “30” of the generator. Minus – black wires in the rear light plugs connected to the body.

Notes and additions

— It should be noted that the brake lights only light up on a vehicle with the ignition on.

Expert opinion

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Reversing light - how it works, checking for faults on a VAZ If you decide to buy a new brake pedal limit switch, then I advise you to pay attention to the old model limit switch or from a classic Lada. Ask, I'm in touch!

Fuses

In many cases, the fuse protects the reversing lamps and also covers other accessories. If this does not give a positive result, replace the fuse and test again. If after replacement the new fuse melts again, then this indicates a short circuit that has occurred somewhere in the circuit. In this case, you should contact an electrician who can quickly determine the location of the short circuit in the electrical circuit.

If the other fused components are still working, then you need to check the rest of the circuit using a test light.

How to replace spark plugs on a car?

You can find an article about this here. You may also be interested in our new article on the topic “How to adjust the clutch.”

Repair is not possible, unit replacement

How to change the reverse sensor on a VAZ 2107? If you haven't touched it with a key for a long time, the task is not easy. The device itself is located in the upper part of the gearbox housing, closer to the bottom: oil does not leak from the manual transmission.

After disconnecting the connector block, just pull off the fastening nut with a 22mm wrench and carefully unscrew the sensor. The difficulty may be that under difficult operating conditions (dirt, temperature changes, road reagents), the threaded connection may stick to the body. In this case, you will have to use extreme dismantling methods: penetrating lubricant, local heating.

Important: Before installing a new sensor, the threaded connection on the gearbox must be thoroughly cleaned.

After installing the device in the hole, lubricate the contacts with a special anti-corrosion compound and only then put on the connector.

Preparation

Turn the light bulb in the socket several times to remove the oxidized layer. A more radical repair would be to sand the contacts in the cartridge with sandpaper.

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How the reverse sensor works on a VAZ seven One way or another, work begins with any headlight that is convenient for you, first wipe the inside, since most often it is dirty and debris can get inside in the future. Ask, I'm in touch!

Illuminated license plate VAZ-2107

To illuminate the license plate in VAZ-2107 cars, AC12–5-1 (C5W) type lamps are used. The license plate illumination is turned on by the external lighting switch - the first button on the left under the gear shift lever. To replace the license plate light bulb, you need to lift the trunk lid, use a Phillips screwdriver to unscrew the two screws holding the backlight light and remove the lampshade from the light housing, then replace the light bulb.


To illuminate the VAZ-2107 license plate, AC12–5-1 (C5W) type lamps are used.

The rear lights of the VAZ-2107 car are a key element of the lighting system and perform a number of functions related to the safety of the vehicle. Proper operation and timely maintenance will extend the life of the rear lights and ensure comfortable and accident-free driving. You can give your car a more modern appearance by tuning lighting fixtures, including taillights.

Stop signal

The brake light switch is located on the brake pedal hanger holder . The brake light is turned on as follows: when you press the brake pedal, the spring in the switch presses the control pin. At the same time, the contacts in the switch close the brake light circuit. When the brake pedal is released, the pin returns to its original position and the brake light goes off.

If the brake lights do not work on a VAZ-2107, you should make sure that the cause of the malfunction is not in the switch. To do this, you need to unscrew the ends of the power wires and place a jumper between them: if the brake lights turn on, the switch should be repaired or replaced. To replace the brake light switch, you must turn it clockwise 90 degrees and remove it from the mount. After installing the new switch, make sure that the neck of the switch fits snugly against the brake pedal and turn it 90 degrees counterclockwise. The new switch is adjusted automatically when the brake pedal is pressed. The switch operates normally if the brake light is turned on no earlier than the brake pedal has been moved 5 mm, but no later than it has been pressed 20 mm.

Fuse F11 is installed in the brake light circuit, which, in addition, is responsible for the operation of the interior body lighting.

Checking the electrical wiring

If the current does not reach the lamp socket, you should check the rest of the electrical circuit in reverse order.

  1. Check your repair manual for the color and route of the reversing wires.
  2. Probe each wire along its entire length.
  3. In most cases the wire will disappear into the cable where you can't reach it.
  4. In this case, you should be extremely careful, because you risk damaging the working wire.
  5. Once you have identified the faulty section of the wire, remove it and install a piece of new wire in its place.

Important! Be sure to provide high-quality insulation at the wire connection points. The quality of the insulation primarily determines the reliability of the contact and the safety of the driver. You can also eliminate the possibility of a short circuit.

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