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Use voltage drop to trigger relay?

Printed From: the12volt.com
Forum Name: Cruise Controls
Forum Discription: Cruise Control Settings, Tach Signal, VSS PPM(Vehicle Speed Signal Pulses Per Mile), Vacuum, Brake, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=143589
Printed Date: May 01, 2025 at 3:08 AM


Topic: Use voltage drop to trigger relay?

Posted By: thekorn
Subject: Use voltage drop to trigger relay?
Date Posted: October 02, 2017 at 2:14 PM

I have steering wheel buttons for cruise control on a 2004 Jeep Wrangler. I have swapped in a Chevrolet Gen 3 engine. The Jeep's cruise buttons have a constant 5v running through them. If you push any of the 5 momentary switches the voltage drops accordingly. Is there a way to determine the amount of voltage drop and convert that into a separate 12v signal for each?





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