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PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:C1A02

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DTC Code DTC Name
C1A02 Vehicle Information Not Obtained
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DESCRIPTION

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

DTC C1A02 is stored when the driving support ECU assembly receives the vehicle specification information from the main body ECU (multiplex network body ECU) but cannot record it.

DTC No. DTC Detection Condition Trouble Area
C1A02 Inconsistent vehicle specification information between the main body ECU (multiplex network body ECU) and driving support ECU assembly continues for 1 second or more while the vehicle is being driven at a speed of 5 km/h (3 mph) or more.

  • CAN communication system

  • Driving support ECU assembly
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CAUTION / NOTICE / HINT

Tip:

This circuit uses CAN communication. Therefore, be sure to check that the CAN communication system is normal before performing inspection.

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PROCEDURE


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    CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Pre-Crash 2 / Trouble Codes.

    5. Clear the DTCs (Click here).

    6. Recheck for DTCs.

      OK
      CAN communication system DTCs are not output.