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Thread: CAN Mode 3 DTCs

  1. #1
    Newbie
    Join Date
    Jan 2011
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    32

    CAN Mode 3 DTCs

    Hi!!
    I am trying to implement the CAN mode 3 (DTCs). I am using the software ScanMaster-ELM and Digimoto to do the tester.
    When I send a request 7DF 8 01 03 00 00 00 00 00 00 where 7DF is ID, 8 = n bytes of the CAN frame, 01 additional bytes, 03 is the mode 3

    I want to response, for example, with 7E8 8 04 43 01 02 34 AA AA AA, where 7E8 is ID, 8 n bytes, 04 additional bytes, 43 is mode 3 response, 01 number of DTCs, and 02 34 is the DTC P0234.

    When I send this response to the programs, ScanMaster and Digimoto do not detect the response.

    What could be happening?

  2. #2
    VENDOR - ScanTool Vitaliy's Avatar
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    Dec 2006
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    Phoenix, AZ
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    Are you trying to build an ECU simulator?
    OBDLink MX: world's smallest, fastest, most advanced OBD/Bluetooth adapter with SW and MS CAN support. Read the review to learn more.
    Need to look up a diagnostic trouble code? Try the most up-to-date, free DTCsearch.com!

    You cannot send me a private message using this forum. Use my email instead: vitaliy[@]scantool.net.

  3. #3
    Newbie
    Join Date
    Jan 2011
    Posts
    32
    Yes, I am trying to build an ECU with all modes with CAN protocol

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