Kev Thompson Posted April 18, 2021 Share Posted April 18, 2021 I have power to the motor and it will only go down not up Quote Link to comment Share on other sites More sharing options...
fullwavebridge Posted April 18, 2021 Share Posted April 18, 2021 Can you hear the motor running in up mode ? If so before going any further, try helping it up with fingers - if it starts but is slow then it could be that the runner slots require lubricating with some ptfe spray. Thats usually the problem, or has been on most of my cars. Quote Link to comment Share on other sites More sharing options...
Kev Thompson Posted April 18, 2021 Author Share Posted April 18, 2021 No the motor doesn't work on up just down Quote Link to comment Share on other sites More sharing options...
fullwavebridge Posted April 19, 2021 Share Posted April 19, 2021 On both passenger / driver door window up controls ? = if so then probably a broken (open circuit cable as it is unlikely that both switches have failed) or bad connection on the loom plug on door below the door stay. I personally would test the motor first with 12v, if motor is working UP with an external supply then its a cable connection issue. Hard to diagnose at a distance, there are several fuses to check too but if drivers is working up and down then unlikely to be a fuse. You will need a pretty standard meter to measure voltage and check continuity. Quote Link to comment Share on other sites More sharing options...
unofix Posted April 19, 2021 Share Posted April 19, 2021 Hi Kev, is this a problem with both front windows or only one ? Quote Link to comment Share on other sites More sharing options...
Kev Thompson Posted April 19, 2021 Author Share Posted April 19, 2021 Only one as the drivers side works fine Quote Link to comment Share on other sites More sharing options...
unofix Posted April 19, 2021 Share Posted April 19, 2021 Hi Kev, I have had a look at the circuit diagram of the passenger side window. The fault is that one of the switches is stuck in the down position. Either the passenger side window switch on the drivers door or the switch on the passenger door. It is a fail-safe system to stop people getting trapped in the window if both switches are pressed at the same time. Check both buttons are free to move and not jammed. Then after that you will need to take the switch out of the passenger side and test with a meter. 1 Quote Link to comment Share on other sites More sharing options...
Kev Thompson Posted April 19, 2021 Author Share Posted April 19, 2021 I have got a new passenger switch and a new motor. So I will be getting a new drivers switch then hopefully I have a fully working window Quote Link to comment Share on other sites More sharing options...
unofix Posted April 19, 2021 Share Posted April 19, 2021 The motor must be fine, if it can drive the window down then it can drive the window up. Its the switches that change the direction of the motor by reversing the positive and negative. By all means fit a new motor but it won't make things any different. It is probably the passenger switch on the drivers side that has the problem but its just quicker and easier to test the one on the passenger door first. 1 Quote Link to comment Share on other sites More sharing options...
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