How to Test Car Relays

How to test a car relay and how a car relay works. In this video we use a Ford relay and an Audi for examples. All you really need to do this is a multimeter set on resistance, however, a 12 volt car battery could be useful. If a car battery isn't available, you can manually close the coil in the relay.

[MrWatchman]

I know this is not rocket science but, I say Excellent explanation of how these relay work and how to test them. You are a great instructor. Thank you for sharing.

[crazydougthewolf]

Thank you! I looked for so long for a concise answer to this question until I found your video. I love it when someone gives me a simple, to the point, answer. Thank you again, and keep up the good work!

[juiced]

hands down best explanation I ve seen from all other videos on how to test relays. your was straight to the point. thanks man!

[gloriaschwazenhag]

Thanks for the clear concise vid. Thanks for not blaring loud music at me and making me listen to you yell for 10 minutes before you got to the point.

[marcosscheneider]

Clean and straightfoward, really nice video!

[garymastro]

Agree with Raphael.  Clear, succinct, lack of babble, good lighting and a steady camera.  Thanks!

[sirnird]

I can’t get over his narrative his voice is but so easy to follow I was able to test one and sadly it tested good. 😆

[Junglefever]

Fantastic, thank you, best explanation of how it works and how to test. Many thanks!!

[saneledlamini]

Thanks for the information it helps a lot

[TJM]

Interesting, same multimeter as mine. I know how to use it a little more.
Many thanks.

[christysullivan]

I think the reason he is showing you how to do it with a car battery because its what will be handy for you while you're outside trying to fix your ride, lol.

[riverarafaelarch]

Nice video! Very informative and its well explained.

[staaaajn]

Great video and I learned a lot... but better connect +12V to terminal 86 not 85 as per the DIN standard. If you have a relay with a diode in it and connect it like shown in the video, you will damage it (like I did).

[alschafer]

Many 12 VDC units will operate for testing purposes using a 9 Volt battery.

[david-tracy]

Great video my friend. How can we know whether 85 or 86 is the positive or negative terminal to hook up to the battery?

[johncantrell]

Actually, you can test one of these with a 9 volt radio battery for 12 volt relays, and two of these in series for 24 volt relays. Much lighter than a car battery.

[RyanHarmon]

I really enjoyed being taught by a British Keanu Reeves.

[josipmatic]

I have problem with my Ford Focus 2010, do not want to start bi relay clicking. When I remove negative 12V and reconnect relay car start juat fine. Why this happen? Can relay be bugy?

[rudyn]

What do you do if you have six erminals and don't know which ones are power terminals. Can't go by the wire size or color. The only one I am sure of is the ground.

[strictlyaudis]

How to test a relay ? Buy a new one hhhh. Very good vedio, thank you