square or sine for olds

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=95928
Printed Date: May 03, 2025 at 5:03 AM

Topic: square or sine for olds

Posted By: Brandt
Subject: square or sine for olds
Date Posted: July 26, 2007 at 11:30 AM

Hello...

Well, it looks like it might fly. I've buttoned up the wiring on a GlobalCruise install on a 1990 Olds Cutlass Ciera, setting little switches with my probe and trying to convince myself that my slight color-blindness wasn't really that big of a problem.

I'm on switch number 11 and I don't know what I need here.

Could someone toss something informative over the plate, maybe with a little expose on what sine or square indicates. I feel like I've been learning something here, but it could be just a Fluke.

Best, Brandt

Replies:

Posted By: ranger svo
Date Posted: July 26, 2007 at 7:12 PM

Factory speed sensors should be a square wave

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The moving power of mathematical invention is not reasoning but imagination.
Augustus de Morgan

Posted By: Brandt
Date Posted: July 26, 2007 at 8:19 PM

Thanks sv...

I've had fun here. The admonitions to disconnect the battery must be weighed against the need to determine the "hot" wire. The ignition harness is something that seems obvious to those who describe it, but is one of many bundles coming from that general neighborhood. It's almost like voodoo. The wrong leaf from the wrong bush...

The switches are set (uh, by the by, isn't the MicroCruise laid out in the12volt a little dated? Where are switches eleven and twelve?) and I look forward to spinning the diagnostic wheel tomorrow.

Best, Brandt