my friends focus mk2 2005 1.4 petrol has a immobiliser fault. Some times it will start other time it wont. you have to sit there turning key loads of times be for it will start the immobiliser light just flashes. I have got some dtc off the dash but cant seem to find anything on them. These are the codes i got D900, E510, D147, E200. So have any of you ever come across this problom or any advice would be great thanks.

 

any one??

 

Does your friend have a spare key?

If so, try this first.

Martin

 

No he only has one key. i have read on the internet it can be caused by a fault speedo cluster has any one heard about this?

 

I wouldn't have though so tbh, there is merely an aerial which "reads" the transponder, which is in the key, so I can't see that affecting it imo.

Martin

 

Are you sure its not a sticky starter motor?