INSPECT VACUUM SWITCHING VALVE ASSEMBLY (for ACIS)

Disconnect the vacuum switching valve connector.

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

• Standard Resistance:

• Tester Connection	Condition	Specified Condition
  1 - 2	20°C (68°F)	37 to 44 Ω
  1 - Body ground	Always	1 MΩ or higher
  2 - Body ground

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

Check the vacuum switching valve operation.

When applying a vacuum to port E, check that air is sucked into the filter.

Text in Illustration

*1	Filter
*a	Vacuum
*b	Air

Apply battery voltage to the connector, and check the VSV operation.

• OK:

• Measurement Condition	Specified Condition
  Battery positive (+) → Terminal 1 Battery negative (-) → Terminal 2	Air is sucked into port E when a vacuum is applied to port F

Text in Illustration

*a	Vacuum
*b	Air

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

Connect the vacuum switching valve connector.