Defrost 99 Chev Silverado

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Forum Name: Vehicle Wiring Information & File Requests
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URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=65687
Printed Date: July 13, 2025 at 6:30 PM

Topic: Defrost 99 Chev Silverado

Posted By: malucyk
Subject: Defrost 99 Chev Silverado
Date Posted: November 05, 2005 at 11:17 PM

Anyone know how to trigger defrost on a 99 Chev silverado pick up truck?

Thanks,

Matt

Replies:

Posted By: KarTuneMan
Date Posted: November 10, 2005 at 5:43 PM

check to see if that year has a white wire at the defroster switch....it's a NEG(-) trigger if its there!

test this wire with your meter....

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