I have just bought a fabia, comfort estate 1.9 tdi . It is an 03 plate & only done £8000 miles. Never had a car with all this electronic stuff before so I am learning. Guess what I started to have the pas light come on. I found out like others that if you turn the ignition off & back on again it dissapears. I read all the posts & started to get worried had I bought a pup?
The car belonged to one of 2 old brothers that lived together but he passed away. the other brother had a Skoda as well & he said he has the same problem.
This got me thinking as I am an electrician I was wondering what was happening.
I decided that when you turn the key nothing much happens except the computer sets itself & the various lights go out & the glow plugs kick in.
When you turn the key to start the car the starter motor starts, & all this helps to drain the battery.
Then the pas motor goes to start but hey ho the battery is at a lower power now & thinks ho this isnt going to work properly so the light comes on.
Because it has all started though and evrything has kicked in & warmed slightly when you turn the ignition off & back on again there is just that extra bit in the battery & less strain to start the engine the pas light goes out.
So simply I thought I will charge the battery, since then over a wek ago & in cold weather the light hasnt come back on.
The problem is that like myself & the brothers that do not do a lot of mileage & only use it for shopping the battery gets drained with it standing & doesnt charge up enough just going short distances. So when the pas light comes on it is time to charge the battery.
Just a tip I used my optimiser I bought from Lidles for my motorbike to charge the battery, I fitted it with a cigarrete lighter plug & just plug it in the one in the car. easier than crocodile clips on the battery.
Hope this helps some people
Andy