Hi,

I have an intermittent problem with locking or unlocking the rear offside door on a Mondeo 1999. In general, when the weather is warm/dry it works but when it is cold/damp the lock is not responsive. I have just also noticed that 1 press of the remote, which should release the driver's door and boot only, also releases the o/s/r door. I suspect I have some corrosion on a connector somewhere which is hydroscopic causing loss of power to the lock. The trouble is, I don't know where to start looking. Does anyone have any suggestions, please?

Thanks.