So my alternator failed yesterday in my 2002 Honda Accord 4cyl. I took it apart and it needs new brushes, slip ring, and I'm at the point now where I am testing the diodes. I set my dvom to diode test and proceeded to test the diodes in both directions. There are 8 diodes. 6 of the diodes tested .5 volts in one direction and OL in the other indicating the diodes are good. The last 2 diodes tested 0 volts in both directions. Does it mean those diodes are bad?