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2001 chevy express van, viper 800hf, 551t

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=125637
Printed Date: May 17, 2025 at 12:45 AM


Topic: 2001 chevy express van, viper 800hf, 551t

Posted By: as&smag
Subject: 2001 chevy express van, viper 800hf, 551t
Date Posted: January 12, 2011 at 7:46 PM

I am finally down to the questions I can not find answers for... I have a 2001 Chevy Express Cargo Van--it's a stripy. I am installing a host of DEI security components including the Viper Ultra 800HF and a 551T Valet remote start. I have found the two wiring location lists for this van on Web and they have been hugely helpful.

So what I would like to know, rather than assume is:

1) Does anyone know if there is a Neutral Safety Switch wire in this van, or how to search for it? The lists I have don't include the location of an NSS. The DEI install manual says the GM Express vans do NOT have one and that I need to use the brake wire and some wires at the ignition along with a relay and some diodes in place of the NSS.

2) The lists both say that the Tachomoter wire is under the hood, under the VCM (what is a VCM?). Is the Tach wire in the Diagnostic plug in this area? Or does anyone have a better description of where to find this wire?

Thanks for any help you can offer!




Replies:

Posted By: tedmond
Date Posted: January 12, 2011 at 9:47 PM
NSS ground this wire and plug in the switch.

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Ted
2nd Year Tier 1 Medical School
Still installing as a hobby...pays for groceries
Compustar Expert


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