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My name is ***** ***** I am a professional here at Just Answer. I noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
I would check for any broken or damaged wiring leading to the window switches to see if any issues are found.Usually a fault like this can cause this here.Check the fused power input at the fuse panels and to the switches for any wiring or corrosion faults needing repaired.