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Oil Pressure Switch: Inspection

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  1. INSPECT ENGINE OIL PRESSURE SWITCH ASSEMBLY 
    1. Disconnect the oil pressure switch connector.
    2. Start the engine.
      Fig 1: Identifying Oil Pressure Switch
      G04975395Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.
      Fig 2: Inspecting Engine Oil Pressure Switch Assembly
      G05640116Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      1 - Switch body Idling 10 kΩ or higher
      1 - Switch body Engine stopped Below 1 Ω
    4. Reconnect the oil pressure switch connector. If the result is not as specified, replace the oil pressure switch assembly.
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