Automatic Transaxle

Pressure Regulator Control Solenoid Testing:

ON-VEHICLE INSPECTION

1. Start engine and run at idle.
2. Disconnect vacuum line from pressure regulator and verify that vacuum is felt.
3. Ground solenoid terminal (upper side) with jumper wire and verify that no vacuum is felt.
4. If vacuum exists, check solenoid valve.

SOLENOID VALVE INSPECTION

1. Remove solenoid valve.
2. Blow through valve from port A and verify that air flows from port B.
3. Apply battery voltage across solenoid terminals.
4. Blow through port A and verify that air flows from valve air filter.
5. If not as specified, replace solenoid valve.