C5 central locking

[brian.r.uk]

had an odd fault appear on my c5 today,the central locking suddenly activated when i was driving along.the light came on the locking button on the dash but no amount of pressing of the button would open the locks.when i stopped i opened the doors ok with the handle on the inside of the door.this happened a few times also when i unlocked it with the remote from the outside it locked itself again.not long before all this happened we had had a heavy downpour of rain,whether this could have any bearing i dont know.has anyone any theories please.

C5 2002 2.0hdi sx.

thanks brian.

[Ed Armstrong]

Brian - did u ever get a reply? I am experiencing similar with my C5. Have posted query in forum, woukd appreciate any info.

Ed

[hobbsy]

This has also recently happened to me. I drive a 2.0 Hdi SX (2002).

[Ed Armstrong]

Looks lmy problem might be the immobilser ECU (BSI I think). I have been advised to use a 2nd key (which I do not have yet) and by a process of elimination determine if it is the key or the aerial /receiver in the ingnition barrel before considering the BSI which I understand is pricey!!

Ed