You noticed that the reverse lamp on your car does not light up, what to do in such cases, where to start troubleshooting.
For cars with gearbox.
- The first thing you need to do is check the fuse, it’s as easy as shelling pears, look in the manual and find the fuse that is responsible for turning on the light bulb.
- Second. If you have a manual transmission, then you need to check the connector on the reverse sensor; as a rule, it is located alone on the gearbox, not counting the speed sensor; it is located on the gearbox between the battery and the engine. We remove the connector from the sensor, see if the contacts are oxidized, bridge them with a piece of hardware with the ignition on and check whether the rear lights are on or off. If the lights come on, then change the (frog) sensor.
- The third thing you need to check is the light in the rear light, you may ask, “How is it possible, I have two reverse lights, have two bulbs burned out at once?”
Yes, such incidents also happen when two light bulbs burn out almost immediately, or, for example, the lights are installed in the trunk lid, they slammed it harder, and the filaments of half the light bulbs fell off. It is also worth paying attention to the contacts of the light bulbs; if they are oxidized, be sure to clean them, for example on the VAZ 2107 they definitely oxidize.
But of course, this rarely happens when two lamps burn out or are shaken off at once; here it is more likely to look for a malfunction of the reverse sensor, popularly called the reverse frog. This name comes from ancient times when everyone drove a VAZ, Volga and ZAZ. By the way, on the VAZ 2110, as I said, there are two reversing lights and the connector there, as a rule, is constantly oxidized. There is no particular need to repair anything, just clean the contacts and install the connector in place.
After you have checked everything and nothing, the reverse light still does not light up, the problem remains unresolved, you need to dig into the wiring, look for a break and call.
Approximate wiring diagram on a car:
- The first wire goes from the fuse box to the lamp
- The second wire from the body ground to the rear speed sensor at the gearbox
- The third wire runs from the sensor to the reverse lamp
Sometimes it happens the other way around, the rear lights are constantly on , well, it’s more likely that the sensor is jammed or the wires are frayed and shorted.
How to replace a faulty sensor?
- On some cars it is located on the top of the gearbox such as Peugeot and you can replace it without much difficulty by unscrewing it with a 21 socket.
- On domestically produced cars such as VAZ , it is located below the oil level; when replacing it, you need to remove the crankcase protection, if present, and place a small container in case you are not very fast with your hands
Video on replacing the sensor on a VAZ 2110, 2111, 2112 car.
On a car with an automatic transmission or CVT, the situation is much more complicated, due to the presence of a gear controller, which may have malfunctions.
The reverse lights of the VAZ 2110 do not light up - what to do?
Leaving your garage one evening, you notice that nothing lights the way. The situation, frankly speaking, is unpleasant and makes you think about it. After all, the rear lights of a VAZ 2110 should be on in normal mode. This means that there is some kind of malfunction that needs to be found and eliminated. Who knows what the reason is, we will have to figure it out. If the reverse lights of a VAZ 2110 do not light up, then, in all likelihood, it is possible that they have simply burned out. Maybe it's a simple failure of a fuse or sensor.
Where is the reverse sensor located on the VAZ 2110?
One of the main reasons for failure of reverse lamps is the sensor responsible for turning them on. People often call it “frog”. It is located on the left side of the gearbox when looking at the car. If you have a viewing hole, drive your VAZ into it, and you will easily find it.
Location of the sensor on the VAZ 2110
If desired, on a VAZ you can see it from above, from the engine compartment, but to do this you will have to remove the air cleaner.
Reasons why the reverse lamps do not light up
It is not difficult to see that when the reverse light on a VAZ2110 does not light up, the reasons can be of a very different nature. But be that as it may, everything needs to be corrected, and for this the cause must be eliminated.
To do this you need to do the following:
- It is necessary to determine the condition of fuse No. 19. It is designed for a power of 7.5 A. Its location is the rear light board of the VAZ 2110 mounting block under the dashboard.
- Next you need to make sure that the light bulbs are working properly. If it turns out that there are no problems with them, you need to check the reverse sensor.
In the latter case, the question of its location may arise. When viewing the car from the front, it is on the right side. If we consider it in projection in the direction of travel, then it will be located in the gearbox, in its lower left part.
Functionality check
And now the moment has come when everything should work:
- Put the car in reverse gear.
- Turn the ignition key.
- In this case, there is no need to start the car, as some “experts” write about it.
- Positive result - both reversing lights are illuminated.
If a positive result is achieved, please accept my congratulations. If not, then let's dig further.
What to do if replacing the sensor did not help?
Earlier in this article, a list of possible reasons was given for why the reversing lights do not light up. The reason could be any of the above, or it could be all of them. Therefore, step by step you will need to take steps to eliminate each of them, and then you will succeed. A video is also provided to help you, which clearly shows how to replace the reverse sensor.
» Reverse light does not light up - what to do
You noticed that the reverse lamp on your car does not light up, what to do in such cases, where to start troubleshooting.
For cars with gearbox.
- The first thing you need to do is check the fuse, it’s as easy as shelling pears, look in the manual and find the fuse that is responsible for turning on the light bulb.
- Second. If you have a manual transmission, then you need to check the connector on the reverse sensor; as a rule, it is located alone on the gearbox, not counting the speed sensor; it is located on the gearbox between the battery and the engine. We remove the connector from the sensor, see if the contacts are oxidized, bridge them with a piece of hardware with the ignition on and check whether the rear lights are on or off. If the lights come on, then change the (frog) sensor.
- The third thing you need to check is the light in the rear light, you may ask, “How is it possible, I have two reverse lights, have two bulbs burned out at once?”
Yes, such incidents also happen when two light bulbs burn out almost immediately, or, for example, the lights are installed in the trunk lid, they slammed it harder, and the filaments of half the light bulbs fell off. It is also worth paying attention to the contacts of the light bulbs; if they are oxidized, be sure to clean them, for example on the VAZ 2107 they definitely oxidize.
But of course, this rarely happens when two lamps burn out or are shaken off at once; here it is more likely to look for a malfunction of the reverse sensor, popularly called the reverse frog.
This name comes from ancient times when everyone drove a VAZ, Volga and ZAZ. By the way, on the VAZ 2110, as I said, there are two reversing lights and the connector there, as a rule, is constantly oxidized. There is no particular need to repair anything, just clean the contacts and install the connector in place.
After you have checked everything and nothing, the reverse light still does not light up, the problem remains unresolved, you need to dig into the wiring, look for a break and call.
Approximate wiring diagram on a car:
- The first wire goes from the fuse box to the lamp
- The second wire from the body ground to the rear speed sensor at the gearbox
- The third wire runs from the sensor to the reverse lamp
Sometimes it happens the other way around, the rear lights are constantly on
, well, it’s more likely that the sensor is jammed or the wires are frayed and shorted.
How to replace a faulty sensor?
- On some cars it is located on the top of the gearbox such as Peugeot and you can replace it without much difficulty by unscrewing it with a 21 socket.
- On domestically produced cars such as VAZ
, it is located below the oil level; when replacing it, you need to remove the crankcase protection, if present, and place a small container in case you are not very fast with your hands
