Abnormal Waveforms

Example 1 PROBABLE CAUSE: Open circuit or short circuit in diode

Fig 1: Open Circuit/Short Circuit In Diode Waveform
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Example 2 PROBABLE CAUSE: Open circuit in stator coil (In stator coil)

Fig 2: Open Circuit In Stator Coil (In Stator Coil) Waveform
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Example 3 PROBABLE CAUSE: Open circuit in stator coil (Open circuit between stator coil and diode)

Fig 3: Open Circuit In Stator Coil Waveform (Open Circuit Between Stator Coil And Diode)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Example 4 PROBABLE CAUSE: Short circuit in stator coil

Fig 4: Short Circuit In Stator Coil Waveform
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.