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Check Valves

  1. Inspect check valve "A" by blowing air from each side of valve. See Fig 2. Ensure air does not flow from manifold side of valve to Air Switching Valve (ASV) side.
  2. Air should flow from Air Switching Valve ASV to manifold. If check valve does not function as described, replace valve.
  3. Inspect check valve "B". Ensure air does not flow from Black to Orange side of nozzle. Air should flow from Orange to Black side. If check valve does not function as described, replace valve.
Fig 1: Testing Vacuum Switching Valve
G118984Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Air Pump System Components & Operating Parameters
G118983Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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