Power Steering Solenoid Valve

POWER STEERING SOLENOID VALVE





Description
Power steering solenoid valve controls the power steering oil pressure in the gear housing assembly.




Component Function Check
1.CHECK POWER STEERING SOLENOID VALVE OPERATION
Check changes in steering force from a halt condition to high-speed driving.
Is the inspection result normal?
YES - INSPECTION END
NO - Check the power steering solenoid valve. SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK POWER STEERING SOLENOID VALVE SIGNAL
1. Turn the ignition switch OFF.
2. Check the voltage between power steering control unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - GO TO 2.
2.CHECK HARNESS BETWEEN POWER STEERING SOLENOID VALVE AND POWER STEERING CONTROL UNIT
1. Turn the ignition switch OFF.
2. Disconnect power steering solenoid valve harness connector.
3. Disconnect power steering control unit harness connector.
4. Check the continuity between power steering solenoid valve harness connector and the power steering control unit harness connector.





5. Check the continuity between power steering control unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace error-detected parts.
3.CHECK POWER STEERING SOLENOID VALVE
Check the power steering solenoid valve. SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 4.
NO - Replace gear-sub assembly. Exploded View.
4.CHECK TERMINALS AND HARNESS CONNECTORS
- Check the power steering control unit pin terminals for damage or loose connection with harness connector.
- Check the power steering solenoid valve pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES - Replace power steering control unit. Service and Repair.
NO - Repair or replace error-detected parts.




Component Inspection
1.CHECK POWER STEERING SOLENOID VALVE
1. Turn the ignition switch OFF.
2. Disconnect power steering solenoid valve harness connector.
3. Check resistance between power steering solenoid valve connector terminals.





4. Check power steering solenoid valve by listening for its operation sound while applying battery voltage to power steering solenoid valve connector F45 terminals 1 (positive) and 2 (negative).
Is the inspection result normal?
YES - INSPECTION END
NO - Replace gear-sub assembly. Exploded View.