DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:C1A02

DTC Code DTC Name
C1A02 Vehicle Information Not Obtained

DESCRIPTION

When a new driving support ECU assembly is installed, it receives vehicle specification information (destination, steering wheel position, 2WD or 4WD, etc.) from the main body ECU (multiplex network body ECU) and stores the information.

DTC C1A02 is stored when the driving support ECU 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 power switch is on (IG) and the dynamic radar cruise control system is operating, the driving support ECU assembly cannot stored the vehicle specification information for approximately 0.1 seconds or more. Driving support ECU assembly

CAUTION / NOTICE / HINT

Note


  • When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in the driving support ECU 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.

    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 DRIVING SUPPORT ECU ASSEMBLY Click here