PawelB

Hi, I did an investigation and it is as follows: everything looks brand new, ground is OK. What I found is that there is something wrong with trunk lock. Plate countour lights are dim with trunk open. Coil resistance measurements (changing from 6 to 60ohms, can't find a rule - maybe there's some short, but it's working theoretically OK), open/close switch working. Every time I press trunk button, either on trunk lid or on the remote -> car is getting crazy, igniton on, lights on. With lock disconnected, nothing happens when I press the trunk button. Installing W5W bulb or shorting open/close to ground all perfectly fine. Bulb blinks, switch indicates open/close. I ordered new trunk lock, we will see.

I'll take a look in Elsa where it goes and sort it out on the weekend. As you mentioned, I'll correct existing wire and that's it.

Hi, I diagnosed the problem, this is an issue with trunk lid earthing. Three symptoms: endplate lights were starting yellow ,,check lights'' on the dashboard, it was working but very dim, rear wiper was not working every time and trunk lock did not open every time. After I slam the trunk it comes back to normal and after some time it is losing contact again. I will use WD40 on the hinges as a temporary solution and will add additional earthing wire on the weekend. The crazy thing is that engine kept going without key with headlights on... This failure was present for some time, but since it happened I've never switched engine off with headlights on and generally did not use headlights during last time as we have summer and Fabia is my city driving daily, so I also did not notice yellow light on the dashboard at all. I'm sure original author had the same issue as it is surprisingly similar. Best regards.

Hi, Did you manage to solve this issue? My Fabia RS 2011 presents the same symptoms, engine working when key off and lights on. Rear wiper also does not switch on every time, sometimes it just does not work. Previous owner had some troubles with martens, but except from hood insulation there is no visible damage. Best regards, Pawel.