How to Test for VSS Wire?

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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=34861
Printed Date: May 13, 2025 at 6:29 PM

Topic: How to Test for VSS Wire?

Posted By: swamprat323
Subject: How to Test for VSS Wire?
Date Posted: June 30, 2004 at 4:27 PM

How do you do this? What kind of mesurment is it?

Replies:

Posted By: NowYaKnow
Date Posted: June 30, 2004 at 5:05 PM

Put your meter on AC volts. Black lead to ground, red lead to the wire. Should read close to nothing when the car isn't moving. With tire rotation you should start to read anywhere from 1 - 5 volts and it should rise and fall the faster/slower you go.

Mike

Posted By: fredisfound
Date Posted: July 06, 2004 at 6:17 AM

I have found that if you use a normal test light, Put the clamp end to a 12 volt wire and use the probe end to locate the wire.If you move the car forward it will light up and go out as you move the car, (only if you have a general idea where to look for the wire.)

Posted By: audioconnection
Date Posted: July 06, 2004 at 8:37 AM

another way is to use the setting of frequency on some of the craftsman meters and testthe same way.

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remember...Friends Dont let friends Install, Take it to a pro..

Posted By: audioconnection
Date Posted: July 06, 2004 at 8:38 AM

the frequency setting is sometimes easier depending on what type of signal the car has. and weather its a square wave or sine wave.

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remember...Friends Dont let friends Install, Take it to a pro..

Posted By: charlie lambert
Date Posted: July 17, 2004 at 5:57 AM

can you always pick up the vss from the obd port if so what meter would i need

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charles

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