C15A9

STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: C15A4/64,C15A9/66,C15AA/66,C15AB/66: Actuator Malfunction


DESCRIPTION

When the VGRS system is normal, the steering actuator conducts current from the steering control ECU to the steering actuator solenoid to release the lock mechanism, enabling motor operation.

The steering actuator does not operate under any of the following conditions:

- The power switch is not ON (READY).

- The motor in the actuator is locked by the lock mechanism to prevent rotation (fail-safe function).

- The system is being protected from overheating (fail-safe function).

If the steering control ECU detects a malfunction in the steering actuator lock mechanism or a motor rotation angle error, it will store these DTCs.





INSPECTION PROCEDURE

PROCEDURE

1. REPLACE STEERING ACTUATOR (POWER STEERING GEAR ASSEMBLY)

(a) Replace steering actuator (power steering gear assembly) Removal.

NOTICE:
Before replacing the steering actuator (power steering gear assembly), make sure to use the Techstream's Data List to confirm and record the "Elec Angle Position" value Data List / Active Test.

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