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Wiring Power Windows Without BCM

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=145674
Printed Date: June 12, 2024 at 7:12 AM


Topic: Wiring Power Windows Without BCM

Posted By: 2010sierra
Subject: Wiring Power Windows Without BCM
Date Posted: October 10, 2019 at 8:50 PM

Hey guys and gals I was just wondering if anyone had any experiencing wiring power windows without a bcm. I have 2010 GMC Sierra with a big block Chevy in it and all factory motor wiring is gone so I want to strip the interior harness down to simply power windows and door locks. Does anyone have any experience bypassing the bcm completely

Here is the factory window wiring diagram for my truck posted_image

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Off-road enthusiast



Replies:

Posted By: Ween
Date Posted: October 10, 2019 at 10:30 PM
You'll need a 4-door power window switch kit. Drivers door switch is four switches, and then there is a single switch for each of the remaining door. SPAL has several styles to choose from. Some type of mating connector or pigtail to plug into the window motors would help installation. Do you want power locks also? The window switches are reversing type, which can be used to operate the door lock motors. You' need to find a switched power source for the windows, as the power supplied by the factory is constant. You could have the switched power trigger a relay using the factory constant power as a source.


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