Master window switch wiring issue?

2004 GMC SIERRA
197,000 MILES • 5.3L • V8 • 2WD • AUTOMATIC
Avatar
RBYGATOR
  • MEMBER
  • 1 POST
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
Feb 12, 2026 at 12:05 AM
Advertisement
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,628 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
Images (Click to enlarge)
Attached Media
Attached Media
Feb 12, 2026 at 1:19 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle