Question Author
this looks like someone else had a similar problem
I have a problem since removing the battery for head gasket change, it would appear that the key and immobiliser unit have de coded themselves. Does anyone have any ideas as to how i can recode them or get the immobiliser off. As it is the car will not start it is just dead when you turn the ignition to start it.
The key fob unlocks the doors, but does not disarm the immobiliser
Had this problem with 306's and found if you turned ignition on before connecting battery then immobiliser disarmed and everything worked as it should.
Is there any quick fix for this one or is it a trip to the dealers.
and this was the answer
have you checked the owners manual to see if there's anything relevant?
just had a quick look at autodata and it says the immob can only be reprogrammed with diagnostic equipment, but you can temporarily disable it with 4 digit code on the security card that should be included in the folder that contains the owners manual, instructions on how to use it are in the owners manual.
so my questtion now is - where do i put the code in