FORWARD RECOGNITION CAMERA SYSTEM, Diagnostic DTC:C1AA1

DTC Code DTC Name
C1AA1 FCM Destination Information Unmatched

DESCRIPTION

When the forward recognition camera is replaced with a new one, the new forward recognition camera attempts to store vehicle information received from the ECM. If the vehicle information stored in the forward recognition camera is different from that stored in the ECM, DTC C1AA1 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AA1 FCM Destination Information Unmatched After the ignition switch is turned to ON for 3 seconds or more, vehicle information stored in the forward recognition camera and that received from the ECM do not match for 5 seconds or more.

  • 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 adjustment.

    Click here

Tech Tips

This DTC is stored when the vehicle information stored in the forward recognition camera and that stored in the ECM do not match. If the forward recognition camera or ECM has been replaced, check if a forward recognition camera or ECM from another vehicle was used.

PROCEDURE


  1. CHECK FOR DTCs (CAN COMMUNICATION DTC OUTPUT)

    Tech Tips

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


    1. Check for DTCs.

      Click here


      Chassis > Front Recognition Camera > Trouble Codes
      Result
      Result Proceed to
      CAN communication DTCs are not output A
      CAN communication DTC is output B

    B

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

    A

  2. CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)


    1. Clear the DTCs.

      Click here


      Chassis > Front Recognition Camera > 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 > Front Recognition Camera > Trouble Codes
      Result
      Result Proceed to
      DTC C1AA1 is not output A
      DTC C1AA1 is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

  3. REPLACE FORWARD RECOGNITION CAMERA


    1. Replace the forward recognition camera.

      Click here

    2. Perform forward recognition camera adjustment.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)


    1. Clear the DTCs.


      Chassis > Front Recognition Camera > 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.


      Chassis > Front Recognition Camera > Trouble Codes
      Result
      Result Proceed to
      DTC C1AA1 is not output A
      DTC C1AA1 is output B

    A

    END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE)

    B

    REPLACE ECM Click here