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Old 04-24-2018, 05:24 PM   #300
ls1nova71
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Join Date: Dec 2009
Location: Independence Mo
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Re: LS factory cruise control hook up

It does sound like you dont have a 4000ppm signal, and if I recall correctly, the T56 uses a 2000ppm signal sensor. I'm pretty sure it can be changed in the tune though I have not personally done it. A 4000ppm signal is a 4000ppm signal no matter how fast you are going, but thats not the point, GM made them to not set below something like 30mph, so if you're getting half that signal, the PCM thinks youre going half the speed, so you would need to be going at least 60mph for it to work.
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