INSPECT VACUUM SWITCHING VALVE ASSEMBLY
Measure the resistance of the VSV.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
If the result is not as specified, replace the vacuum switching valve.
Check operation of the VSV.
Attach a vacuum pump to port E and check that vacuum does not flow from the filter to port E.
If the result is not as specified, replace the vacuum switching valve.
Apply battery voltage across terminals 1 and 2.
Attach a vacuum pump to port E and check that vacuum flows from the filter to port E.
If the result is not as specified, replace the vacuum switching valve.