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GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Gs400 Window Problem!

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Old Feb 10, 2014 | 05:34 PM
  #1  
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Default Gs400 Window Problem!

Greetings CL, I've searched the forum but couldn't find a specific fix to my window problem so i was hoping if anyone here could help me. My driver side window doesn't roll up or down, just the driver side. So i brought it to a window repair shop and paid $40 for a diagnostics, they said it was my Master Switch because when they gave power to the window with their own little machine it would move up and down no problem. So I bought a replacement Master switch on eBay and brought it in to them and still the same thing, so they said either i bought a faulty Master Switch with the same problem as my old one or it could be an electrical problem. When i pull up on the window switch i could hear a buzzing sound so it makes me think that nothing is wrong with the Master switch. i tried sticking my key into the driver side door and turning it for 5 secs, all the windows rolled down except for the driver. I brought my car to an auto electric shop and they said they charge $75 to take a look at it.

Before i do that i want to see if anyone here could help me . Thanks!
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Old Feb 10, 2014 | 07:23 PM
  #2  
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power window motor?
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Old Feb 10, 2014 | 07:37 PM
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$75 is cheaper than buying the wrong part- I suspect the motor has failed
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Old Feb 10, 2014 | 07:49 PM
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The thing is, the first shop i went to used their own external power to test the window. I watched as they touched 2 wires on the door with their 2 wires (attached to some sort of battery) and the window rolled down like normal. They then touched another part of the wire and it rolled up like normal.
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Old Feb 10, 2014 | 10:35 PM
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From: KY
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The door computer that controls the motor might have gone bad.
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