muggo Posted January 20, 2015 Share Posted January 20, 2015 Every so often, the windows on my 2006 2.0 TDCI Mondeo Estate come down in the night. Apart from it being a security risk, it could be raining overnight. I'm certain I'm not accidentally pressing the key & there are no water leaks into the carpet perhaps causing an ECU short. Does anyone have any ideas about what's causing it? Failing that, is it possible to disable the auto down windows feature as I never need it? Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 20, 2015 Share Posted January 20, 2015 I would suggest you start by removing the door card and disconnecting the window switches, and see if the issue occurs. if it does, it indicates the fault is on the wiring circuit, so you need to check for water ingress at the door, or damaged wires. Alternatively the issue may be elsewhere in the loom, but this is the best place to start looking. Quote Link to comment Share on other sites More sharing options...
muggo Posted January 21, 2015 Author Share Posted January 21, 2015 I would suggest you start by removing the door card and disconnecting the window switches, and see if the issue occurs. if it does, it indicates the fault is on the wiring circuit, so you need to check for water ingress at the door, or damaged wires. Alternatively the issue may be elsewhere in the loom, but this is the best place to start looking. Thanks for the good advice. However, the problem only happens about every 3 months, so it will take a long while to see if disconnecting all my electric windows has sorted it I really needed to see if this was a common fault with a recommended fix. Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 21, 2015 Share Posted January 21, 2015 It's not common as such but has been seen before and I believe water ingress was the problem. I suggest you still take the door apart and check for signs, also check the footwell and fuse box locations for other signs Quote Link to comment Share on other sites More sharing options...
pragmatix Posted January 21, 2015 Share Posted January 21, 2015 Low battery power can also cause this Quote Link to comment Share on other sites More sharing options...
muggo Posted January 22, 2015 Author Share Posted January 22, 2015 Low battery power can also cause this Thanks. That isn't the issue as the battery is fairly new & cranks my diesel engine in cold weather with no problem. Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 22, 2015 Share Posted January 22, 2015 im still thinking its a wiring issue, I am wondering if a permenant live is shorting somewhere on the wire... Quote Link to comment Share on other sites More sharing options...
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