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Window switch wiring diagram

Tiny
HUGHATHA
  • MEMBER
  • 2003 GMC SIERRA
  • 6.0L
  • V8
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
Window on drivers' side will not work, I have replaced it two times still won't go up! I need wiring diagram and info on which color each wire represents.
Saturday, October 30th, 2021 AT 12:29 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

I attached the wiring diagram and the connector diagram for you below.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Check the wires inside the boot that goes from the body to the door. It is common for the wires to break from all the flexing.

Let me know if you have any other questions.

Roy
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Saturday, October 30th, 2021 AT 2:33 AM

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