Master window switch wiring issue?

Tiny
RBYGATOR
  • MEMBER
  • 2004 GMC SIERRA
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 197,000 MILES
I have cut off my 26 pin master window switch wiring connector and can’t make it work there are 13 wires and have only able to get the driver side mirror to move up down left right it is a extended cab power windows not folding power locks
Thursday, February 12th, 2026 AT 8:05 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,845 POSTS
I assume you need the window wiring diagrams for the switch correct? These diagrams show which wires goes to where in the window/mirror switch. Check out the images (below). Let us know if you need anything else. Ken
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Thursday, February 12th, 2026 AT 9:19 AM

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