More sophisticated testing equipment is needed to detect an open or shorted alternator diode. Bring your vehicle to your ...

If the alternator does produce the correct voltage, move on to the diode test. The diodes are the electronic part of the alternator that convert AC voltage to DC. Switch your multimeter to the ...

The Innova 3340 Professional Automotive Digital Multimeter is a high-end device that is specifically designed to pinpoint engine issues, test alternator diode, wiring, breaker points and many ...

Here's how to test for a bad diode with nothing more ... You can replace the diodes in the alternator fairly easily, or just swap in a rebuilt alternator if one is available fairly cheaply for ...

If you want to know how to test the alternator in a ... This is done inside the alternator via a voltage rectifier, consisting of diodes (one-way check valves). The alternating current passes ...