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Oil Pressure Switch: Inspection

  1. INSPECT ENGINE OIL PRESSURE SWITCH ASSEMBLY 
    1. Disconnect the oil pressure switch connector.
    2. Start the engine.
      Fig 1: Removing Oil Pressure Switch
      G06009463Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.
      Fig 2: Measuring Resistance Between Engine Oil Pressure Switch Terminals
      G06009472Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B6-1 - Switch body Idling 10 kΩ or higher
      B6-1 - 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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