Ford Repair Questions? Ask a Mechanic for Answers ASAP
Hello, I hope I can offer you some assistance, if this is an immobiliser concern then the immobiliser LED will flash rapidly when you turn the ignition on, if it's doing this with both keys then it is an immobiliser concern but not due to a key fault. If the no start is due to low fuel pressure then the immobiliser LED should come on for 3 seconds then go off, this is normal. Low fuel pressure won't activate the immobiliser. If it is an immobiliser concern then a diagnostic scan will be required to determine which part of the system is giving the fault, usually this is an instrument cluster failure, if it is a cluster fault then a new cluster will need programming to the car and the immobiliser system reset. Having a diagnostic scan will also confirm if there is a fuel pressure concern. You can't really diagnose this fault on a DIY basis as the scanner used needs to be able to read body codes which cheaper scanners can't. Let me know if I can assist further and I'll reply as soon as I'm able to. Best wishes.
thanks - so far the garage have been quite accomodating with courtesy cars etc., - I just wanted to be able to ask some reasonablly intelligent questions when I speak to them later
let me know if I can assist further.