INSPECT AIR SWITCHING VALVE ASSEMBLY
Measure the resistance of the air switching valve.
| Standard resistance | ||||||
|---|---|---|---|---|---|---|
|
If the result is not as specified, replace the air switching valve assembly.
Check operation of the air switching valve.
Check that air does not flow from port A to port B.
If the result is not as specified, replace the air switching valve assembly.
Apply battery voltage across terminals 1 and 2.
Check that air flows from port A to port B.
If the result is not as specified, replace the air switching valve assembly.