Lock Mechanism Release Incomplete

DTC C15A4/64 Actuator Malfunction

DTC C15A9/66 Lock Holder Deviation Detection

DTC C15AA/66 Lock Mechanism Release Incomplete

DTC C15AB/66 Lock Mechanism Insertion 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 either of the following conditions:
^ The engine is off.
^ 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.

C15A6/64-C15AB/66:

INSPECTION PROCEDURE

Step 1: