Diesel Data: Automotive Repair

Variable Induction Control Solenoid: Testing and Inspection

INSPECT VACUUM SWITCHING VALVE ASSY FOR IAC VALVE ASSY NO. 3







a. Check the VSV resistance.

If the result is not as specified, replace the VSV assy No. 3.

b. Check VSV operation.




1. Check that air flows from port E to the filter.




2. Apply battery voltage across the terminals. Check that air flows from port E to port F.

If the result is not as specified, replace the VSV assy No. 3.

INSPECT VACUUM SWITCHING VALVE ASSY FOR IAC VALVE ASSY NO. 2







a. Check the VSV resistance.

If the result is not as specified, replace the VSV assy.

b. Check VSV operation.




1. Check that air flows from port E to the filter.
2. Apply battery voltage across the terminals.




3. Check that air flows from port E to port F.

If the result is not as specified, replace the VSV assy.