PRE-CRASH SAFETY 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 main body ECU (multiplex network body ECU). If the driving support ECU cannot store the country specification information, DTC C1A02 is stored.

DTC Code DTC Detection Condition Trouble Area
C1A02 While the ignition switch is ON and the pre-crash safety system is operating, the driving support ECU cannot store the country specification information.

  • Main body ECU (Multiplex network body ECU)

  • Driving support ECU

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. Use the Data List to check if the country specification information is correct Click here.

      Pre-Crash 2
      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 or NOFIX EURO, AUS, TWN, THAI or GCC -
      OK
      Country specification information is correct.

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVING SUPPORT ECU

    OK

  2. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC C1A02 is not output.

    NG

    REPLACE DRIVING SUPPORT ECU Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here