Electric switch solinoids

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URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=12095
Printed Date: May 06, 2025 at 5:04 PM

Topic: Electric switch solinoids

Posted By: pdltfc
Subject: Electric switch solinoids
Date Posted: April 11, 2003 at 10:04 PM

When testing an electric switch solinoid from the ignition switch in the following manner. A ground to ground terminal a positive to ignition terminal you can hear a click if the sonlniod is operating correctly I 'm told. When you place your voltmeter on the top post of this solinoid that now leads to the soliniod that kicks the flywheel over what should your voltage be?

Replies:

Posted By: copcarguy
Date Posted: April 13, 2003 at 7:11 PM

If your voltage in reads 12.5 volts then the switched side of the selonoid should read exactly the same when engaged. If there is a drop in voltage from one terminal to the other when engaged then the internal contacts or the coil windings are bad. Either way replace it if you do not see identical voltage on the line and load sides of the selenoid.

Hope this helps posted_image

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R Jackson
Owner/Installer
TRM Emergency Vehicles
Information is advice only and should be confirmed with OEM or quality test equipment.
Boyertown, Pennsylvania

Posted By: pdltfc
Date Posted: April 14, 2003 at 9:34 PM

R. Jackson Thanks for your reply.

Posted By: copcarguy
Date Posted: April 15, 2003 at 9:19 AM

No problem. Hope I was some help to you! Take care.

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R Jackson
Owner/Installer
TRM Emergency Vehicles
Information is advice only and should be confirmed with OEM or quality test equipment.
Boyertown, Pennsylvania