How To Test Alternator Diode With Multimeter. Have your assistant start the cars engine and let it run for a few minutes at 1200 RPM. On the other hand if the engine will stop working while the terminal is disconnected that means.

Donations httpswwwpaypalmeSiRobbhttpswwwamazoncoukshopsirobbMeters shown or similar to those in the videoFluke 117 httpsamznto2UjdISXFluk. Checking for a Bad Diode. The method of testing a diode with an analog meter is quite straightforward.
You should read 000 in the display.
Restart the engine run it for a few minutes at 1200 RPM. The Diode Test procedure is conducted as follows. Your voltmeter should read 0 AC volts. Have your assistant start the cars engine and let it run for a few minutes at 1200 RPM.
