There are many possibilities that can cause this problem.It can be faulty window motor,or control switch or its issue with fuses and relays or its the problem of loose/short wiring.
For step by step troubleshooting click the link below and follow the details:----
http://www.gresk.com/2013/09/truck-window-will-not-roll-up.html
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This will help.
Thanks.
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