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I have been given a little bit of advice. It is, that a poor earth connection on the door courtesy light switches may cause a possible central locking problem when using the remote. After fiddling with the switches, I re-tried locking the car with the remote, it worked, as did the unlocking! So could this be the solution? I have not, removed the door switches, or checked the earthing of them. Regards. Bill Karran
Hi Mike, thanks for your comments. However, the problem seems to be mainly on the central locking using the remote key. When it doesn't respond at all, you would swear the key wasn't transmitting. But it is, tested it on a garage tester. Never had a problem with the immobiliser. Just the opening/closing functions on the remote key. No indicator light flashing when the fault occurs. I'll certainly remove all door switches, clean the contacts, and re-check the operation. Regards. Bill