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 hereClick 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.

      Tip:

      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

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    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 hereClick 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 hereClick 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.

      Tip:

      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 hereClick here