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Home >> Toyota >> 2019 >> Sienna XLE, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [2GR-FKS] (Service Information) >> VACUUM SWITCHING VALVE(for Engine Mounting) >> Inspection [08/2016 - ] >> Procedure
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Inspection [08/2016 - ]: Procedure

  1. INSPECT DUTY VACUUM SWITCHING VALVE (OPERATION) 
    1. Check the operation of the duty vacuum switching valve when positive battery voltage is applied to its terminals.
      GTY739719Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Duty Vacuum Switching Valve)

      OK

      Tester Connection Condition Specified Condition
      1 - 2 Battery voltage is not applied The air from pipe G is flowing out through pipes E and H.
      Battery voltage is applied The air from pipe F is flowing out through pipes E and H.
  2. INSPECT DUTY VACUUM SWITCHING VALVE (RESISTANCE) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY729703Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Duty Vacuum Switching Valve)

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 19 to 21 Ω

      If the resistance is not as specified, replace the duty vacuum switching valve.

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