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Outer Vent Control Valve

  1. With valve installed, remove hoses. Turn ignition switch off. Blow air through one side of valve. Air should pass through.
    Fig 1: Testing Vacuum Control Valve
    G09310624Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Turn ignition switch to "ON". Repeat air application. Air should not pass through valve.
  3. Visually check wiring and fuse condition.
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