With 4WAS

UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIATION)





Description
- The steering force does not change smoothly according to the vehicle speed.
- The steering force is heavy when steering.
- The steering force is light when driving at high speed.




Diagnosis Procedure
1.CHECK 4WAS SYSTEM VEHICLE SPEED SIGNAL
Perform the trouble diagnosis of the vehicle speed signal. C1919.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace the specific malfunctioning part.
2.CHECK STEERING SYSTEM
Check the steering system. Procedures.
Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace the specific malfunctioning part.
3.CHECK 4WAS SYSTEM POWER STEERING SOLENOID VALVE
Perform the trouble diagnosis of the power steering solenoid valve. With 4WAS.
Is the inspection result normal?
YES - Check that there is no malfunction in each harness connector pin terminal or disconnection.
NO - Repair or replace the specific malfunctioning part.