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Power window goes down but not up


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mjc21
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Jun 17, 2012, 7:05 PM

Post #1 of 4 (4533 views)
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Power window goes down but not up Sign In

I have a 2003 Ford F-350 diesel I just recently bought. The problem is the front passenger window will go down but not up. Here is where I am with it.

I bought and replaced the window motor. Both motors would only go down then stop so I took them out and bench tested by putting 12v on them then reversing polarity and both motors would turn, one way then the other so I am sure they are good. I put the motor back in and hooked up a jumper and by reversing polarity could make the window go up then down.

I replaced the switch for the window (bought 2 and tried them both). I also replaced the master switch on the drivers side door. Actually I tried 4 different switches and the result was the same on each. Two wires connect to the window motor. When I disconnect this plug and measure voltage (1 meter lead grounded) across 1 wire (red w/ yellow stripe) pressing up I get 9v, pressing down I get 12v. When I put my meter on the other wire (yellow w/ red stripe) and press window switch up I get 12 v and down I get 0.

I am guessing that the 9 volts I am getting is the problem but I am seeing the same results on 4 different switches. The pin connecter that connects to the motor from switch is a 5 pin connector, one has 12 v at all tomes as long as drivers master switch is not locking out window, two wires go to motor and other 2 I am not sure where they wind up. Does it sound like I am looking in the right direction or hopefully I am missing something more obvious?

Thanks for any insight and help on this anyone can provide.

Michael


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 17, 2012, 8:38 PM

Post #2 of 4 (4504 views)
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Re: Power window goes down but not up [In reply to] Sign In

Verify that you have ground on the black wire at the main switch. It grounds on the "C" pillar behind the driver's door.
If you don't have continuity on that wire to ground, look at the harness that passed through the door hinge.




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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Jun 17, 2012, 8:40 PM)


mjc21
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Jun 17, 2012, 9:17 PM

Post #3 of 4 (4493 views)
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Re: Power window goes down but not up [In reply to] Sign In

Just got back inside and have it fixed. Was checking continuity on one of the wires from the right door switch to the main switch and none was present. Started tracing it down and found in the boot between the drivers door and frame the wire which at one time was spliced with a crimp connector had come loose. Installed a new connector and everything works as it should. I appreciate your response, its just what I found.


Hammer Time
Ultimate Carjunky / Moderator
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Jun 17, 2012, 9:19 PM

Post #4 of 4 (4489 views)
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Re: Power window goes down but not up [In reply to] Sign In

Glad to hear you found it.




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.





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