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Oil Pressure Switch: Inspection: Inspection

  1. INSPECT ENGINE OIL PRESSURE SWITCH ASSEMBLY 
    1. Disconnect the oil pressure switch connector.
    2. Start the engine.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 1: Measuring The Resistance Of Engine Oil Pressure Switch Assembly
      GTY310575Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 - Body ground Engine stopped Below 1 Ω
      Engine idling 10 kΩ or higher

      If the result is not as specified, replace the oil pressure switch assembly.

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