LKA/LDA SYSTEM, Diagnostic DTC:C1AAD

DTC Code DTC Name
C1AAD Vehicle Information Initialization Incomplete

DESCRIPTION

When the forward recognition camera is replaced with a new one, the new forward recognition camera attempts to store the vehicle information received from the ECM. If the forward recognition camera cannot store the vehicle information, DTC C1AAD is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AAD Vehicle Information Initialization Incomplete 2 seconds after the engine switch is turned on (IG), the vehicle information from the ECM cannot be stored.

  • CAN communication system

  • Forward recognition camera

  • ECM

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

PROCEDURE


  1. CHECK FOR DTCs (CAN COMMUNICATION DTC OUTPUT)


    1. Check for DTCs.

      Click here


      Chassis > LKA/LDA > Trouble Codes

      Tech Tips

      The forward recognition camera communicates with the ECM via CAN communication. Confirm that the CAN communication system is functioning normally before proceeding.

      Result
      Result Proceed to
      DTC U0100 is not output A
      DTC U0100 is output B

    B

    GO TO CAN COMMUNICATION SYSTEM for LHD: Click here for RHD: Click here

    A

  2. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / Front Recognition Camera / Data List.

    5. Read the Data List according to the display on the GTS.


      Chassis > Front Recognition Camera > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Vehicle Information (2WD/4WD) Vehicle information (drivetrain) stored in forward recognition camera 2WD, 4WD or Unknown

      2WD: for 2WD

      4WD: for 4WD

      Unknown: Vehicle information not confirmed

      		 -
      Vehicle Information (Conv/HV) Vehicle information (conventional/hybrid) stored in forward recognition camera Conv, HV or Unknown

      Conv: Conventional

      HV: Hybrid vehicle

      Unknown: Vehicle information not confirmed

      		 -

      Chassis > Front Recognition Camera > Data List
      Tester Display
      Vehicle Information (2WD/4WD)
      Vehicle Information (Conv/HV)

      Tech Tips


      • If "Unknown" is displayed, the ECM cannot send vehicle information or the forward recognition camera cannot store the vehicle information. Check for DTCs, replace the ECM if necessary and recheck for DTCs. If the DTC is output again, replace the forward recognition camera.

      • If "Unknown" is not displayed, the DTC is stored even though the vehicle information is stored in the forward recognition camera. Replace the forward recognition camera.

      Result
      Result Proceed to
      "Unknown" is displayed A
      "Unknown" is not displayed B

    B

    REPLACE FORWARD RECOGNITION CAMERA Click here

    A

  3. 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 C1AAD is not output A
      DTC C1AAD is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

  4. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  5. 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 C1AAD is not output A
      DTC C1AAD is output B

    A

    END (ECM WAS DEFECTIVE)

    B

    REPLACE FORWARD RECOGNITION CAMERA Click here