Purge Valve: Inspection

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT VACUUM SWITCHING VALVE ASSEMBLY

Measure the resistance according to the value(s) in the table below.

Fig 1: Inspecting Vacuum Switching Valve Assembly

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Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1 - 2	20°C (68°F)	23 to 26 Ω
1 - Body ground	Always	10 kΩ or higher
2 - Body ground	Always	10 kΩ or higher

If the result is not as specified, replace the vacuum switching valve assembly.

Check operation of the vacuum switching valve assembly.
1. Check that air does not flow from port E to port F
  
  Fig 2: Checking Air Does Not Flow From Port E To Port F
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2. Apply battery voltage across terminals 1 and 2.
  
  Fig 3: Applying Battery Voltage Across Terminals 1 And 2
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check that air flows from port E to port F. If the result is not as specified, replace the vacuum switching valve assembly