gm vsl4200 wiring

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=124255
Printed Date: May 17, 2024 at 6:40 PM

Topic: gm vsl4200 wiring

Posted By: silverado32
Subject: gm vsl4200 wiring
Date Posted: November 02, 2010 at 8:21 PM

Hi all,

I've got a older GM VSL4200 I would like to put in my truck, primarily for keyless entry. I've read this may be a clifford, or a hornet alarm but I can't find and exact wiring diagram. If anyone can post or refer me where to look it would be appreciated. Thanks

Replies:

Posted By: 91stt
Date Posted: November 02, 2010 at 10:54 PM

could you post a pic of the brain and remote?
if it is a gm unit, it very likely to be a code alarm system.
what year and vehicle did it come out of?

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This information is provided only as a reference.
All circuits should be verified with a digital multi-meter prior to making any connections.

Posted By: silverado32
Date Posted: November 02, 2010 at 11:37 PM

posted_image

It didn't come out of a vehicle. I got it for almost nothing on fleebay. It's designed to be installed on 99 and up silverado pickups. The brain plugs in to a harness adapter that integrates into the TCBM. Obviouisly this won't work in my 94, so I was just going to hard wire it in, based on wire function from the brain. As you see its a GM aftermarket product. I've read that DEI makes them and have also read it could be a hornet. I haven't been able to find an exact match for the colored wires on the 12 pin connector.

Posted By: Mike M2
Date Posted: November 03, 2010 at 6:39 AM

It is made by DEI and is the same as the Automate AM5. The only difference is the harnesses have different color wires. I can get the 12 pin colors today at work...

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Mike M2
Tech Manager
CS Dealer Services

Posted By: silverado32
Date Posted: November 03, 2010 at 8:41 AM

Thanks Mike.

Posted By: silverado32
Date Posted: November 09, 2010 at 10:34 PM

Ok so i've installed the alarm and everything works properly with the exception of the unlock function. When unlock is depressed the system diarms and the on board relay triggers, but the doors don't unlock. I metered the unlock common output and found that it's not putting out any voltage when the unlock button is depressed. Can I test this relay on the alarm itself or should I just assume its bad. Can the relay be replaced or should I just replace the whole module? I installed the alarm using the VSC 4000 manual found here: https://www.the12volt.com/installbay/file.asp?ID=706. Thanks for any help.

Posted By: silverado32
Date Posted: November 10, 2010 at 9:36 AM

I figured it out. The unlock input was connected to ground at the harness. I spliced it to 12v positive and unlock now works...