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Home >> Lexus >> 2021 >> LS 500 Base, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Dynamic Rear Steering System - Diagnostic Codes & Symptom Tests >> Dynamic Rear Steering System >> DTC C1B11-2B: Motor Driver Signal Cross Coupled; DTC C1B11-96: Motor Driver Component Internal Failure; DTC C1B12-13: Motor Circuit Circuit Open [10/2023 - ] >> Description
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DTC C1B11-2B: Motor Driver Signal Cross Coupled; DTC C1B11-96: Motor Driver Component Internal Failure; DTC C1B12-13: Motor Circuit Circuit Open [10/2023 - ]: Description

In order to prevent abnormal operation, the rear steering link assembly monitors the value of the motor current and voltage as measured using the built-in sensor.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate DTC Output from Priority
C1B11-2B Motor Driver Signal Cross Coupled It is detected that the motor phase current energization is outside of a certain value Rear steering link assembly Displayed on MID DRS A
C1B11-96 Motor Driver Component Internal Failure The drive command value of the motor driver and voltage at the terminal of the motor do not match Rear steering link assembly Displayed on MID DRS A
C1B12-13 Motor Circuit Circuit Open The motor current does not flow in accordance with the commanded value Rear steering link assembly Displayed on MID DRS A