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Component Testing: Rectifier

  1. Check the condition of the positive heat sink by checking continuity between the positive heat sink and each of the stator coil lead connecting terminals. If continuity is present for both terminals, the diode is shorted. Replace the rectifier assembly. See Fig 1 .
  2. Check the condition of the negative heat sink by checking continuity between the negative heat sink and each of the stator coil lead connecting terminals. If continuity is present in both directions, the diode is shorted. Replace the rectifier assembly. See Fig 2 .
  3. Check the condition of the diode trio by testing continuity of each of the 3 diodes using a circuit tester connected to both sides of the diode. If the same reading results for both polarities, the diode is defective. Replace the rectifier assembly if any of the diodes are defective. See Fig 3 .
Fig 1: Checking Continuity Between Positive Rectifier & Stator Coil
G00352954Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig 2: Checking Continuity Between Negative Rectifier & Stator Coil
G00352955Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig 3: Checking Continuity Of Three Diodes
G00352956Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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