DYNAMIC REAR STEERING SYSTEM, Diagnostic DTC:C1B15/25

DTC Code DTC Name
C1B15/25 Motor Rotation Angle Malfunction

DESCRIPTION

When the DRS ECU (rear steering control ECU) detects a problem with motor operation, DTC C1B15/25 is stored.

DTC Code DTC Detection Condition Trouble Area
C1B15/25 After turning the engine switch on (IG), the motor does not operate according to the command from the ECU. Rear steering link assembly

INSPECTION PROCEDURE

Note


  • If the rear steering link assembly or the rear suspension is removed and installed, replaced, or adjusted, after performing actuator calibration value initialization, perform neutral position memorization and motor rotation angle sensor calibration Click here.

  • Since DTC C15C9/76 is stored in the VGRS ECU (front steering control ECU), after performing repairs on the dynamic rear steering system, clear the DTCs for the VGRS system.

PROCEDURE


  1. CHECK DTC


    1. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC C1B15/25 is output as a past DTC A
      DTC C1B15/25 is output as a current DTC B

    B

    REPLACE REAR STEERING LINK ASSEMBLY Click here

    A

  2. PERFORM ACTUATOR FORCED ACTIVATION


    1. Perform actuator forced activation and confirm the operation of the rear steering Click here.

      Result
      Result Proceed to
      The rear wheels do not turn or only turn in one direction A
      The rear wheels turn to the left and right B

    B

    USE SIMULATION METHOD TO CHECK Click here

    A

    REPLACE REAR STEERING LINK ASSEMBLY Click here