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Except Civic

  1. Remove diode (rectifier) assembly from generator. Check for continuity in both directions by reversing test probes between terminal "B" and terminals P1 , P2 , P3 and P4 . Check for continuity in both directions between diode terminal "E" (ground) and terminals P1 , P2 , P3 and P4 . See Fig 1 .
  2. All diodes should show continuity in one direction and no continuity in opposite direction. If any diode does not test as specified, replace entire diode (rectifier) assembly.
Fig 1: Testing Diode (Rectifier) Assembly (Denso)
G00012906Courtesy of AMERICAN HONDA MOTOR CO., INC.
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