2000 Honda Prelude Base, AutomaticFACTORY OEM SERVICE PROCEDURE

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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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.