DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:C1A02

DTC Code DTC Name
C1A02 Vehicle Information Not Obtained

DESCRIPTION

When a new millimeter wave radar sensor assembly is installed, it receives vehicle specification information (destination, steering wheel position, 2WD or AWD, etc.) from the main body ECU (multiplex network body ECU) and stores the information.

DTC C1A02 is stored when the millimeter wave radar sensor assembly cannot store the vehicle specification information from the main body ECU (multiplex network body ECU).

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A02 Vehicle Information Not Obtained While the ignition switch to ON and the dynamic radar cruise control system is operating, the millimeter wave radar sensor assembly cannot stored the vehicle specification information for approximately 0.1 seconds or more. Millimeter wave radar sensor assembly

CAUTION / NOTICE / HINT

Note


  • When replacing the millimeter wave radar sensor assembly always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle. As a result, a DTC may be stored.

  • First check the CAN communication system by following How to Proceed with Troubleshooting. After checking that there are no malfunctions in the CAN communication system, proceed with troubleshooting.

    Click here

PROCEDURE


  1. CHECK FOR DTC (RADAR CRUISE 2)


    1. Clear the DTCs.

      Click here


      Powertrain > Radar Cruise2 > Clear DTCs

    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.


      1. Turn the ignition switch to ON.

      2. Turn the dynamic radar cruise control system on using the cruise control main switch (ON/OFF button).

      3. Wait for 2 seconds or more.

    3. Check for DTCs.

      Click here


      Powertrain > Radar Cruise2 > Trouble Codes
      Result
      Result Proceed to
      DTC C1A02 is not output A
      DTC C1A02 is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY Click here