LANE DEPARTURE ALERT SYSTEM, Diagnostic DTC:C1AAA

DTC Code DTC Name
C1AAA FCM Destination Information Uninitialized

DESCRIPTION

When the lane departure warning camera is replaced with a new one, it acquires the country specification information from the main body ECU (multiplex network body ECU). If the lane departure warning camera cannot store the country specification information, DTC C1AAA is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AAA FCM Destination Information Uninitialized While the ignition switch is ON, the lane departure warning camera cannot store the country specification information for 8 seconds or more.

  • Main body ECU (Multiplex network body ECU)

  • Lane departure warning camera

CAUTION / NOTICE / HINT

Note


  • When the lane departure warning camera is replaced with a new one, adjustment of the lane departure warning camera beam axis must be performed.

    Click here

  • The lane departure alert system uses the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the lane departure alert system after confirming that the communication systems are functioning properly.

    Click here

PROCEDURE


  1. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Enter the following menus: Chassis / Lane Departure Alert / Trouble Codes / Clear DTCs.

    4. Clear the DTCs.


      Chassis > Lane Departure Alert > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

      Tech Tips

      Wait for a minute or more with the ignition switch ON.

    3. Enter the following menus: Chassis / Lane Departure Alert / Trouble Codes.

    4. Check for DTCs.


      Chassis > Lane Departure Alert > Trouble Codes
      Result
      Proceed to
      No DTCs are output
      DTC C1AAA is output

    No DTCs are output

    USE SIMULATION METHOD TO CHECK Click here

    DTC C1AAA is output

  3. READ VALUE USING GTS (DESTINATION INFORMATION)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / Lane Departure Alert / Data List.

    5. According to the display on the GTS, read the Data List.


      Chassis > Lane Departure Alert > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Destination Information Status of the country NOFIX, JPN, NA, EURO, AUS, GCC, SAFC, CHINA, CANADA, NZ, THAI, TWN or Read Error Actual country code -

      Chassis > Lane Departure Alert > Data List
      Tester Display
      Destination Information
      OK
      Country specification information for lane departure warning camera and vehicle match.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE LANE DEPARTURE WARNING CAMERA Click here

    NG

  4. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. Replace the main body ECU (multiplex network body ECU) with a new one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  5. ADJUST LANE DEPARTURE WARNING CAMERA


    1. Perform the lane departure warning camera adjustment.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Enter the following menus: Chassis / Lane Departure Alert / Trouble Codes / Clear DTCs.

    4. Clear the DTCs.


      Chassis > Lane Departure Alert > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  7. CHECK FOR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

      Tech Tips

      Wait for a minute or more with the ignition switch ON.

    3. Enter the following menus: Chassis / Lane Departure Alert / Trouble Codes.

    4. Check for DTCs.


      Chassis > Lane Departure Alert > Trouble Codes
      Result
      Proceed to
      No DTCs are output
      DTC C1AAA is output

    No DTCs are output

    END (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] IS DEFECTIVE)

    DTC C1AAA is output

    REPLACE LANE DEPARTURE WARNING CAMERA Click here