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Oil Pressure Switch

  1. Remove the YEL/RED wire from the oil pressure switch. See Fig 1 .
  2. There should be continuity between the positive terminal and the engine (ground) with the engine stopped. There should be no continuity when the engine runs.
  3. If the switch fails to operate, check the engine oil level, then inspect the oil pump and pressure if the oil level is correct. See 1.7L 4-CYL or 1.8L 4-CYL article in ENGINE.
Fig 1: Locating Oil Pressure Switch
G00147227Courtesy of AMERICAN HONDA MOTOR CO., INC.
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