DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:C1A02

DTC Code DTC Name
C1A02 Vehicle Information Not Obtained

DESCRIPTION

When the driving support ECU is replaced with a new one, it acquires the country specification information (destination, steering wheel position, etc.) from the main body ECU. When the country specification information in the driving support ECU assembly and main body ECU do not match, DTC C1A02 is output.

DTC No. DTC Detection Condition Trouble Area
C1A02 While power switch is on (IG) and dynamic radar cruise control system is operating, driving support ECU assembly does not receive vehicle destination information for 1 second or more Driving support ECU assembly

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Using the GTS to check if the CAN communication system is functioning normally Click here.

      Result
      Result Proceed to
      CAN communication is normal A
      CAN communication is malfunctioning B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK FOR DTCs (DTC C1A02)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Clear the DTCs Click here.

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

      Tech Tips

      If the detection conditions are not met, the malfunction cannot be detected.


      1. Drive the vehicle at a speed for which radar cruise control operation is possible.

      2. Turn the cruise control system on using the cruise control switch (ON-OFF button).

      3. Push the cruise control switch to -/SET to begin control of vehicle speed using the cruise control system.

    5. Enter the following menus: Powertrain / Radar Cruise / Trouble Codes.

    6. Check for DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC C1A02 is output B

    B

    REPLACE DRIVING SUPPORT ECU ASSEMBLY Click here

    A

    USE SIMULATION METHOD TO CHECK Click here