Diode Test

With diodes disconnected from stator, connect one ohmmeter lead to a diode and the other lead to diode plate. Note reading with ohmmeter on XI scale. Reverse leads and again observe ohmmeter. If diode indicates either a high or low resistance in both directions, diode is defective. Repeat test on remaining diodes. If a diode is defective, entire diode plate must be replaced as diodes are not replaceable individually.