Vacuum Switching Valve: Inspection

INSPECT VACUUM SWITCHING VALVE (PURGE VSV)

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

Standard resistance

TESTER CONNECTION AND SPECIFIED CONDITION

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 purge VSV.

Fig 1: Measuring Resistance Between Vacuum Switching Valve Terminals

G04943731

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Check operation of the purge VSV.
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
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Apply battery voltage across terminals 1 and 2.
3. Check that air flows from port E to port F. If the result is not as specified, replace the purge VSV.
  
  Fig 3: Applying Battery Voltage Across Terminals 1 And 2
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002