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  1. #1
    Gearhead krjoseph's Avatar
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  2. Default Checking a Uly trouble code?

    Hey guys, help a Uly noob, please. I've borrowed an 08 XB12X for a trip to the Dragon. But the CEL came on right after I filled her up yesterday. She's been running great, and still seems to be fine, but the light won't go off. I'm a Blast guy, so ECMs are new to me. I searched for info, I know I need to jump terminals 1 & 2, but where is the Diagnositc Port? I've searched this and other forums, but couldn't find Uly specific instructions. I don't have a service manual, can you help me with a few instructions. Thanks.

  3. #2
    Gearhead krjoseph's Avatar
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  4. Default

    Hey guys, I think I figure it out. Only took 2 hours of googling! It's a code 21, the interactive exhaust valve. It's not working on this bike and is stuck shut. The owner knew that, said it's no big deal. I guees the ECM finally figured it out and threw the code.

  5. #3
    Racer
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  6. Default

    Yeah, sorry we couldn't help but glad you found the answer and can still ride. I went to my trusty $65 service manual and looked up CEL illuminated and it said "please see electrical diagnostic manual".Oh well, that'll be another $65 if I can find one. Here's hoping you have a great time on the Dragon.

  7. #4

    Default

    Trouble codes may be retrieved without the use of the DIGITAL
    TECHNICIAN II (Part No. HD-48650).

    1. Remove the protective cover from data link connector
    [91A]. The data link connector's location is different for
    each model. It is located under the fairing (Firebolt), under
    the seat (Lightning) or behind the left airflow guide
    (Ulysses).

    2. To activate the diagnostic feature of the check engine
    lamp, proceed as follows:

    a. See Figure 2-2. Install diagnostic test wire from parts
    shown.
    b. See Figure 2-3. Install diagnostic test wire across
    terminal "1" and terminal "2" on the data link connector
    [91A].
    c. Turn the Ignition Switch ON and wait approximately
    eight seconds for the check engine lamp to start
    flashing.

    3. See Figure 2-4. All trouble codes are sent out as a series
    of flashes. To retrieve the first digit of the trouble code
    simply observe the number of times the check engine lamp
    flashes.
    a. The transmission of a trouble code is always preceded
    by six rapid flashes (about 3 per second).
    b. This "intermission" is followed by a 2 second pause
    in which the check engine lamp is off.
    c. The check engine lamp will then flash one or more
    times to indicate the first digit of the trouble code.The
    length of time the check engine lamp is illuminated
    and the length of time in which it is off are each about
    1 second in duration.

    4. The second digit follows:
    a. Following transmission of the first digit, there is
    another 2 second pause in which the check engine
    lamp is off.
    b. The check engine lamp will then flash one or more
    times to indicate the second digit of the trouble code.
    Count the number of times the check engine lamp
    Flash

    5. If more than one trouble code is sent:
    a. Following transmission of the second digit of the first
    code, there is a third 2 second pause in which the
    check engine lamp is off.
    b. After the pause comes the intermission, which is followed
    by transmission of the next recorded trouble
    code.
    c. All subsequent codes are sent in the same manner
    each separated from the next by he intermission.

    6. Once all codes have been sent, the data string is repeated.
    When you have recorded the same trouble code twice, it
    is an indication that the transmission has been restarted
    and that all trouble codes have been retrieved.hes to retrieve the second digit.



  8. #5

    Default

    This is a good step by step - I'm going to sticky it.

  9. #6

    Default

    That is a cool way to check codes. Another way is to download ECMSPY and get a data cable. Simply hook the cable to the bike and to your computer. From there you can check current codes as well as a history of error codes. You can then clear the error codes. You can also do a diagnostic check on pretty much everything on he bike.

    Kevin

  10. #7
    Racer
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  11. Default

    It's good to know both methods. The jumper wire is especially handy if you're out and about and need to check a code. The wire can be kept in your tool kit but I guess you still need the list of what the numbers mean. I suppose it's similar to cars and equipment where the first digit is the system and the second digit is the type of failure. I did not know that ECMSPY had diagnostics too. This would make it quite useful for maintainance since I really didn't want to get into remapping or performance mods. Question, the origional developer has stopped supporting or updating ECMSPY as of last year sometime, at least as far as Buells go. Can you recomend a current reliable source to download the software from?

  12. #8

  13. #9
    Racer
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  14. Default

    Hey, that's great. Thanks for the info. Now to start looking for a cable...

  15. #10

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