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Oil Pressure Switch Test

  1. Remove the YEL/RED wire (A) from the oil pressure switch (B).
    Fig 1: Identifying Oil Pressure Switch And Connector
    G05494177Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Check for continuity between the positive terminal (C) and the engine (ground). There should be continuity with the engine stopped. There should be no continuity with the engine running.