LANE DEPARTURE ALERT SYSTEM, Diagnostic DTC:C1AA1

DTC Code DTC Name
C1AA1 FCM Destination Information Unmatched

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). When the country specification information in the lane departure warning camera and main body ECU (multiplex network body ECU) do not match, DTC C1AA1 is stored.

DTC No. DTC Detection Condition Trouble Area
C1AA1 While the initial check is running with the power switch on (IG) and the lane departure alert system is operating, country specification information in the lane departure warning camera and main body ECU (multiplex network body ECU) do not match for 3 seconds or more.

  • Lane departure warning camera

  • Main body ECU (multiplex network body ECU)

CAUTION / NOTICE / HINT

Note


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

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

PROCEDURE


  1. READ VALUE USING GTS (DESTINATION INFORMATION)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

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

      Lane Departure Alert
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Destination Information Status of the country/JPN, NA, EURO, CHINA or OTHER (GEN-EXP) Actual country code -
      Result
      Result Proceed to
      Country specification information for vehicle and lane departure warning camera match A
      Country specification information for vehicle and lane departure warning camera do not match B

    B

    REPLACE LANE DEPARTURE WARNING CAMERA Click here

    A

  2. CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)


    1. Clear the DTCs Click here.

    2. Make sure that the DTC detection conditions are met.

      Tech Tips

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

    3. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC C1AA1 is not output A
      DTC C1AA1 is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here