Central locking (yet again)!

I have a 1998 1.9TDi passatt sport estate, my central locking has a problem that nobody appears to have 'posted' about, the nearside front passenger door lock does the opposite action to the others when using the remote fob and yet deadlocks normally when I insert the key into the drivers door.:1zhelp:

A scan with a fault code reader on the Convenience system will show that lock to be at fault, it is a common problem.

Thanks Crasher, glad it's not a wiring prob.