light flash need help

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=20601
Printed Date: July 05, 2025 at 12:28 AM

Topic: light flash need help

Posted By: bear80
Subject: light flash need help
Date Posted: October 26, 2003 at 4:11 PM

i have a 2003 silverado my alarm has a 12v out put but my chevy parking lights are (-) how do you wire this up do any body know how to do this wrihgt

Replies:

Posted By: italnpimp59
Date Posted: October 26, 2003 at 4:35 PM

your truck has a gray/black wire at the BCM box. its a negative trigger so you must use a relay for this, wire it up as follows:

85-+12volt light flash output from alarm

86-ground

87-tap into gray/black wire

30-ground

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Posted By: bear80
Date Posted: October 26, 2003 at 4:56 PM

thanks italnpimp59

Posted By: italnpimp59
Date Posted: October 26, 2003 at 5:16 PM

no problem. glad i could help

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