Hi, I have failed yearly check on my Skoda Fabia becuase of ESP warning light coming on dashboard.

A year or so ago I was driving on street road where there was part of the road that was dug up due to some construction work. They had put a big metal plate on top of the whole for cars to pass through but there seemed to be some part on the right side that was not completely covered. While driving over it, at very slow speed ofcource, the right front wheel of the car fell in that hole and something under the car hit the surface. There was as loud bang and after that two things happened:

1. The central locking system went crazy. The car was locking and unlocking every second. This went on for few minutes and then the frequency dropped. Later that day, the problem went away completely and never really came back.

2. The ESP light came on. The light went off when I stopped and started the car but it would come back on at different times, almost randomly. Later I found out that it mostly comes on when I make a full right turn. I had the car checked and the mechanic ran code check. The error code I got was 00526. 

We changed the brake light switch but the problem was still there. Later, we changed the ABS sensor on right wheel as well but still the issue is still there. Although after this, the frequency of getting the ESP light while driving was lower then before.

 

After checking more I found two things

1. If I start the car while pressing the brake padel, I dont get the ESP light on. However later during driving it may come on due to some turn or for example I have seen it turn on when I drive over a puddle of water.

2. If I start the car and the brake padel is not pressed, then I get the ESP light on and it does not go away until I restart the car. I have seen that this happens all the time.

 

Even after changing brake light switch as error code suggest and ABS sensor, I am getting this ESP issue. I would like to know if someone here has seens the issue or know what else could be wrong. The mechanic says that the next thing to change could be the theeth on wheel but I am not sure why they could cause this intermittent issue. Any ideas?

 

3 hours ago, Ata84 said:

We changed the brake light switch but the problem was still there. Later, we changed the ABS sensor on right wheel as well but still the issue is still there.

Have you checked the wiring to that sensor for damage?

I didnt checked the wiring personally but thought the mechanic would have.

 

Anyways, the mechanic troubleshooted the issue. So he got thinking when I told him "If I start the car and the brake padel is not pressed, then I get the ESP light on and it does not go away until I restart the car."

 

He took out both back light casing and checked the bulbs. Some time ago I had installed LED brake lights after changing them multiple times getting frustrated. Turns out, they were the ones causing this issue. He replaced them with halogen and the problem went away, never came now. I was really surprise how can LED cause this warning. The LEDs were perfectly fine.

 

Does anyone know if LEDs work on my type of car? and which one to use because I really dont want to change too often.