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Old 12-19-2018, 02:13 PM   #5
jaykay
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Join Date: Sep 2009
Location: toronto
Posts: 2,668
Thank you this is great information. I will have to get hold of just such a multimeter when I can. I was able to put 9 V to the switch and get the LED to function.....using a battery

I had to go brute force not having the proper tools. Hopefully I have not damaged the LED


Quote:
Originally Posted by particlewave View Post
If I remember correctly, the outermost terminals are the LEDs on the defrost switches, but it's really best to pop the switch apart and test them directly.
The notched side of the LED is negative.




Diode check is usually marked on the meter with a diode symbol, like this:



The diode check will illuminate the diode, though dimly. Again, best to remove the switch top to best ter see/test. It pops right off with little rocker tabs on each side.
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