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Home >> Lexus >> 2019 >> GS 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Variable Gear Ratio Steering System - Diagnostic Codes & Symptom Tests >> Variable Gear Ratio Steering System >> DTC C15A4-64: Motor Rotation Angle Malfunction; DTC C15A9-66: Lock Holder Deviation Detection; DTC C15AA-66: Lock Mechanism Release Incomplete; DTC C15AB-66: Lock Mechanism Insertion [09/2014 - ] >> Procedure
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DTC C15A4-64: Motor Rotation Angle Malfunction; DTC C15A9-66: Lock Holder Deviation Detection; DTC C15AA-66: Lock Mechanism Release Incomplete; DTC C15AB-66: Lock Mechanism Insertion [09/2014 - ]: Procedure

  1. REPLACE STEERING ACTUATOR ASSEMBLY 
    1. Replace the steering actuator assembly (Refer to REMOVAL [09/2014 - ] ).

    Result: 

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