How to test a Relay

Explained on automotive air conditioning relay for comprressor magnetic clutch

[henrydrew]

Thank you good Sir. The AC compressor clutch in my wife's vehicle decided to no longer engage on (ironically) the hottest day of the year thus far. I watched videos on jumping the connections in the fuse box which looked too risky for me. Diagnosing the state of the relay is the proper way to go. My relay proved to be in an open state. I drove to my local Subaru dealer this morning and purchased a new relay for $8. Got home, popped it in, started the car, and voila! AC is working again. Thanks again.

[tr]

I love your style of making videos. Simple, yet very thoroughly explained. Thank you very much for this!

[pug]

Have always wanted to know how to properly test a relay, and now I do. Thank you sir for yet another simple yet informative how-to video!

[jeanbaptistebaderhahabiman]

My car was a problem, I tested all raley and got one of them not walking and replaced it, thank you so much I love you

[jimmydavila]

Thank you so much for the detailed procedure. Was able to determine the relay was bad. $12 later and AC is working again.

[cindyrusch]

Was able to check all my relays . I have a 12 volt power controller that I used for voltage then used my meter. Great video. All my relays work. Thank you so much for this wonderful video

[ArsenPotentier]

Yes I liked your demo of how to test in the garage and also at the road side brilliant demo Sir. Great for the newbie.

[quinsoe-win]

Clear, visible, informative and to the point. Thank you.

[roamingaroundwithpatriotbo]

Thank you so much for the information. This is the best information I have found on YouTube.

[markreynolds]

Thanks for sharing this video, great information explained.

[TangentToWhat]

Your videos are spot on and straight to the point.

[lawburnaby]

Good demonstration, thanks for sharing. 👍🏻👍🏻👍🏻

[johnlucala]

Well and straight explanation, i like it, thank you very much.For good video tortural..

[rezanoursafavi]

Thank you for your informative and excellent demonstrations .

[davidknibbs]

Works?, With out guys like you on the internet we wouldn't get anything Done to are car. Keep up the good videos 👍

[TourettesMobileMechanic]

Love this video. Needed a simple explanation

[davidnull]

If you have a Toyota consider keeping a spare A/C relay in your car, it can save time and aggravation when your A/C suddenly fails in hot weather. It doesn't always fix Toyota A/C but it is a good shot when it abruptly fails.

[DBui-bjxd]

Thank you for sharing this very informative video.

[robertoortiz]

Cool thanks now I know how to I have one to test

[incub]

You likely also have an audible (beeping) continuity setting on your multimeter. That might be more suitable when just confirming open and closed.