How to use a Multimeter: Solenoid Testing - Purkeys

Liftgate solenoids need to be tested under a load. According to Sales and Service Engineer Larry Rambeaux, “Use the ohm setting on a multimeter to determine if the switch is within spec for that particular piece of equipment”. To do this, switch the multimeter to “ohm’s” and touch the positive and negative meter leads to the two smallest posts. Check that coil resistance reading against voltage spec range.

To make sure that the switch is truly good, it must not be grounded. Touch the positive meter lead to one post while touching the negative to the bracket. There should be no reading on the multimeter, or OL.

If the coil resistance is within range and the liftgate switch is not grounded, technicians can be certain the component is good. Making assumptions based on sight and sound or using a test light alone simply will not be accurate. Proper testing using a multimeter is necessary to determine if the mag switch is in proper working order to avoid mechanical failure.

[MervsServiceSecrets]

So many times I have read articles that say if you have ZERO ohms, you have "continuity". But isn't "PROPER" CONTINUITY (Like what you mentioned regarding the specs) what really matters? So for example, a multimeter set to the 200 ohms setting might show a reading of 900 during testing, and some people would say "You don't have continuity"! But in actuality, you DO have "PROPER CONTINUITY". Please correct me if I am wrong.

[mashundiy]

Diesel generator has a fuse on the solenoid+ connected to ignition. It keeps on blowing when I start the generator. So, I guess the solenoid has gone short?

[manzini]

My solenoid has only one small post, how do I test it? It's for a three wire lifgate switch.
Thanks

[safetyalways]

My S terminal and the body of solenoid reads continuity. Is the solenoid still good?

[safetyalways]

My S terminal and ground reads continuity. Is the solenoid still good?

[jregamey]

My meter reads 9 then drops to 2(2 is what also measures touching leads together) transmission solinoid says specs should be 25 to like 50

[rickeykeeton]

I am confused. Just checked a brand new solenoid like mine. Shows no continuity between the smaller posts. Mine shows 3.4 ohms.
The new one also show continuity between one of the small pats and the base.
12 volts does activate the new one.
The new one has S and I on it. Which of the small wires got to which, or dies it matter?

[jevontecole]

Is there a positive and negative on solenoid? My starter is on solenoid but won’t light up with light tester 12? Thanks

[jefegarpez]

We don't have to test the bigger posts??

[Twitchystick]

This video posting may be dead but im geting megaohms to the post is my solenoid grounded?

[johnnynewhouse]

My solenoid has a 140 ohms resistance is it still ok?

[keylacruz]

he is such a grouch. he is so full of himself.

[safetyalways]

My S terminal and ground reads continuity. Is the solenoid still good?