DYNAMIC REAR STEERING SYSTEM, Diagnostic DTC:C1B01, C1B02

DTC Code DTC Name
C1B01 Actuator Angle Neutral Memorization Undone
C1B02 Actuator Angle Neutral Memorization Incomplete

DESCRIPTION

When actuator calibration value initialization is performed or the DRS ECU (rear steering control ECU) is replaced (it is determined that the DRS ECU [rear steering ECU] has not performed neutral position memorization), DTC C1B01 is stored.The DRS ECU (rear steering control ECU) first confirms the actuator neutral position memorization signal after the vehicle enters test mode. Then, if an actuator neutral position memorization failure is detected twice, DTC C1B02 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition
C1B01 Actuator Angle Neutral Memorization Undone Actuator neutral position memorization has not been performed. Actuator angle neutral calibration Comes on Perform actuator angle neutral position calibration.
C1B02 Actuator Angle Neutral Memorization Incomplete When neutral position memorization is performed, the actuator neutral position cannot be set. Rear steering link assembly Comes on After clearing DTCs, perform actuator angle neutral position calibration.

CAUTION / NOTICE / HINT

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.

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PROCEDURE


  1. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Chassis > DRS > Trouble Codes
      Result
      Result Proceed to
      DTC C1B01 or C1B02 is output A
      DTCs other than C1B01 and C1B02 are output B
      DTC is not output C

    B

    REPAIR CIRCUITS INDICATED BY OUTPUT DTCS Click here

    C

    USE SIMULATION METHOD TO CHECK Click here

    A

  2. PERFORM DYNAMIC REAR STEERING SYSTEM CALIBRATION


    1. Perform neutral position memorization and motor rotation angle sensor calibration.

      Click here


      Chassis > DRS > Utility
      Tester Display
      DRS Neutral Memorization
      Result
      Proceed to
      NEXT

    NEXT

  3. RECONFIRM DTC


    1. Check for DTCs.

      Click here


      Chassis > DRS > Trouble Codes

      Note

      If DTC C1B01 or C1B02 is output after performing neutral position memorization and motor rotation angle sensor calibration, confirm that the procedures are being performed correctly and perform neutral position memorization and motor rotation angle sensor calibration again (the maximum amount of attempts to perform neutral position memorization and motor rotation angle sensor calibration is 3 times).

      Result
      Result Proceed to
      DTC is not output A
      DTCs other than C1B01 and C1B02 are output B
      Even after performing neutral position memorization and motor rotation angle sensor calibration 3 times, DTC C1B01 or C1B02 is output. C

    A

    END

    B

    REPAIR CIRCUITS INDICATED BY OUTPUT DTCS Click here

    C

    REPLACE REAR STEERING LINK ASSEMBLY Click here