LANE DEPARTURE ALERT SYSTEM (w/o Dynamic Radar Cruise Control 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, the engine switch is 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 1 seconds or more.

  • Lane departure warning camera

  • Main body ECU (multiplex network body ECU)

INSPECTION PROCEDURE

Note


  • Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).

  • If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.

  • 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.

PROCEDURE


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

    Click here


    NEXT

  2. CLEAR DTCs


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

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

    4. Clear DTCs.

    5. Turn the engine switch off.


    NEXT

  3. CHECK FOR DTCs (LANE DEPARTURE ALERT)


    1. Perform the following to make sure the DTC detection conditions are met.

      Tech Tips

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


      1. Drive the vehicle at a speed between 50 km/h (32 mph) and 220 km/h (138 mph), and operate the lane departure alert system.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG).

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

    5. Check for DTCs.

      OK
      DTC C1AA1 is not output.

    6. Turn the engine switch off.


    NG

    REPLACE LANE DEPARTURE WARNING CAMERA Click here

    OK

    END