Mechanic Life Hack | Awesome Relay Test!

Use a 9 volt battery to quickly check the operation of a relay! This little mechanic life hack help to quick confirm the primary side of the relay is ok.

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[RobertJahrling-pbxw]

In one minute you've explained what I was looking for last night on Google for three freaking hours

[hippieJOSH]

I wish I could save shorts into my car troubleshooting folder. Thank you for this video

[marq]

To test the 9v battery lick the terminals 😅

[jmc]

After watching this i started using 9v battery's to active solenoids on hydraulic control valves. I've even stacked them in series to active a 24v starter on large diesel engine to do valve adjustments. Works awesome. Nice little trick 👌

[CANDiagnostic]

Glad to see you found some time for it with your busy life. Great clip m8 that's a new one on me

[davetdowell]

And... relays can get stuck, and a couple of them on/off cycles with the 9v battery you just did would reset it. Nice vid.

[comment]

I find with them green and blue relays on bmws if you just take off the cover you will see if the contacts are OK or not they normally leave a black burn mark on the inside of the cover but I must say the 9 volt battery is a great idea 👍

[Lucian]

omg from a 24 minute video to this. ty

[arthurfricchione]

Wow Darren what a neat check. First time I’ve see that sort of test. I’ve got extra relays so I will go check it out. Also have plenty of 9V batteries. Darren I truenjoy all your videos. You don’t get involved with all the high tech mumbo jumbo and 12K $ scanners and scopes. What you have shown and taught me is great. Thanks buddy much appreciated. Stay safe and well Artie 😊👍

[Uncleorangesoda]

So what’s a good ohms reading and what is bad?

[markchimmy]

Thank you so much ❤👍I really appreciate you sharing this with the rest of us!!!👍

[dorondavid]

Thanks! I have to test my car relays and didn't have an external power source to do it like how other videos showed

[fadiamine]

why resistance is so low in good working relay in this video? thanks for the video and for anyone can help me.

[MiracleMAX]

Great idea! I'm gonna steal that one to teach in class....😉

[arvindtaylor]

You are a cool dud. Glad I found you. Enjoying your tips and videos. All the best…🎉

[charlesmeyer]

Test resistance of the coil as well as load test.

[edwardlara]

A very good demonstration except you left out the threshold between good and bad. Are we suppose to guess, or what's the point. What is good value and what is a bad value ?

[rkde]

Nice little video, one of many reasons i keep a pack of 9v batteries. For the really confused they'll want to know which way round to connect the battery 🤣

Keep up the good work with the videos.

[michaelvtx]

That would be a good quick test but certainly would not be able to determine if the relay contacts can handle the load which is something that I often run into.

[jcorrales]

Thank you for this info it was really helpful