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 from the No. 1 meter ECU sub-assembly.

DTC Code DTC Detection Condition Trouble Area
C1A02 While power switch is ON (IG) and system is operating, driving support ECU does not receive vehicle country specification information and hybrid vehicle control ECU transmission information

  • Driving support ECU

  • No. 1 meter ECU sub-assembly

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (DRIVING SUPPORT ECU)


    1. Check that the Data List for proper functioning of the country specification information is correct Click here.

      Radar Cruise
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Country# (DSS) Driving support ECU country signal/JPN, NA, EURO, AUS, SAFC, OTHER, TWN, CHINA, THAI, GCC, NOFIX EURO, AUS, SAFC, OTHER, TWN, CHINA, THAI or GCC -
      OK
      Country specification information for vehicle and driving support ECU matches.

      Tech Tips

      The country specification information of the driving support ECU is decided by the No. 1 meter ECU sub-assembly.


    NG

    REPLACE DRIVING SUPPORT ECU Click here

    OK

  2. CHECK FOR DTC


    1. Using the intelligent tester, enter the following menus: Powertrain / Radar Cruise / DTC.

    2. Select "Clear" and clear the data.

    3. Recheck for DTC.

      OK
      DTC C1A02 is not output.

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE DRIVING SUPPORT ECU Click here