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Inspection [12/2015 - 08/2016]: Procedure

WARNING: This page is about a different car, the 2016 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT ENGINE OIL PRESSURE SWITCH ASSEMBLY 
    1. Disconnect the engine oil pressure switch assembly connector.
    2. Start the engine.
    3. Measure the resistance according to the value(s) in the table below.
      GTY303783Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 - Switch body Idling 10 kΩ or higher
      1 - Switch body Engine stopped Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Engine Oil Pressure Switch Assembly)

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

    4. Reconnect the engine oil pressure switch assembly connector.
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