LKA/LDA SYSTEM, Diagnostic DTC:C1AAB

DTC Code DTC Name
C1AAB DRS Stuck Malfunction

DESCRIPTION

The forward recognition camera receives dynamic rear steering system control signals from the DRS ECU (rear steering control ECU). If the forward recognition camera receives a malfunction signal from the dynamic rear steering system, DTC C1AAB is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AAB DRS Stuck Malfunction 2 seconds after the engine switch is turned on (IG), a malfunction signal from the DRS ECU (rear steering control ECU) is detected by the forward recognition camera for 5 seconds or more.
  • Dynamic rear steering system

  • DRS ECU (rear steering control ECU)

  • Forward recognition camera

CAUTION / NOTICE / HINT

Note


  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.

  • If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Learning.

    Click here

  • The LKA/LDA system uses the CAN communication system. First, confirm that there are no malfunction in the CAN communication system. Refer to How to Proceed with Troubleshooting.

    Click here

PROCEDURE


  1. CHECK FOR DTCs (DYNAMIC REAR STEERING SYSTEM)


    1. Check for DTCs.

      Click here


      Chassis > DRS > Trouble Codes

      Tech Tips

      LKA/LDA system DTC C1AAB may be stored due to a malfunction in the dynamic rear steering system. Therefore it is necessary to check for and troubleshoot dynamic rear steering system DTCs first.

      Result
      Result Proceed to
      Dynamic rear steering system DTCs are not output A
      Dynamic rear steering system DTCs are output B

    B
    A
  2. CHECK FOR DTCs (LKA/LDA SYSTEM)


    1. Clear the DTCs.

      Click here


      Chassis > LKA/LDA > Clear DTCs
    2. Make sure that the DTC detection conditions are met.

      Tech Tips

      If the conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs.

      Click here


      Chassis > LKA/LDA > Trouble Codes
      Result
      Result Proceed to
      DTC C1AAB is not output A
      DTC C1AAB is output B

    A
    B
  3. REPLACE FORWARD RECOGNITION CAMERA


    1. Replace the forward recognition camera.

      Click here

    2. Perform Forward Recognition Camera Learning.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  4. CHECK FOR DTCs (LKA/LDA SYSTEM)


    1. Clear the DTCs.

      Click here


      Chassis > LKA/LDA > Clear DTCs
    2. Make sure that the DTC detection conditions are met.

      Tech Tips

      If the conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs.

      Click here


      Chassis > LKA/LDA > Trouble Codes
      Result
      Result Proceed to
      DTC C1AAB is not output A
      DTC C1AAB is output B

    A
    B