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Thread: Error Code 12?

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    VEGASRIDER (OP)
    100K Mile Member Error Code 12? VEGASRIDER's Avatar
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    Error Code 12?

    Anyone have a clue on what this might mean? Bike turns over, but will not start. Tried push starting too, nothing. Maybe the plugs? Would that give me an error code?

    Just jinxed myself last night, saying that I had no mechanical issues. Might have to take it to the shop, but I would like to pinpoint the problem beforehand so I don't end up paying all the labor for trouble shooting.
    VEGASRIDER...................Member # 35
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    Re: Error Code 12?

    Error code 12 is the crankshaft position sensor

    Put the bike in gear and move it back and forth to try and get the piston to move that should get the sensor to realize there is movement and hopefully it will start. Try putting it in first and holding the clutch when you go to start it.

    If not disconnect the battery for 5min or so and hopefully the OBS will reset it self. If none of that works than open the manual and start reading there is a section that describes how to check the CPS in detail
    Last edited by LCR; 09-21-2011 at 07:51 AM. Reason: Clarification

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    Vrrroooooom! Error Code 12? Motogiro's Avatar
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    Re: Error Code 12?

    Quote Originally Posted by LCR View Post
    Error code 12 is the crankshaft position sensor.
    Good call! :BLAA:
    If you can't fix it by hitting it with a hammer, it's electrical!

    Clif
    SoCal Hoon

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    Re: Error Code 12?

    i think i had this once when i tried to shift into gear with the side stand down (it was on a paddock stand)

    ended up having to take out the battery before the bike would start up :S

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    Re: Error Code 12?

    Also check the battery voltage. Yamahas are pesky about electronics and a dead or dying battery could mean not enough juice to read all the sensors before start up. If the computer can't communicate with the sensor for what ever reason bad sensor or not enough power to get a reading the ECU reverts to fail safe and wont allow the bike to start.

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    Vrrroooooom! Error Code 12? Motogiro's Avatar
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    If you can't fix it by hitting it with a hammer, it's electrical!

    Clif
    SoCal Hoon

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    Vrrroooooom! Error Code 12? Motogiro's Avatar
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    Re: Error Code 12?

    Quote Originally Posted by LCR View Post
    Also check the battery voltage. Yamahas are pesky about electronics and a dead or dying battery could mean not enough juice to read all the sensors before start up. If the computer can't communicate with the sensor for what ever reason bad sensor or not enough power to get a reading the ECU reverts to fail safe and wont allow the bike to start.
    True but he's got crank over at the starter and the computer has enough voltage to know to throw a code so his battery is probably okay.
    If you can't fix it by hitting it with a hammer, it's electrical!

    Clif
    SoCal Hoon

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    Re: Error Code 12?

    Quote Originally Posted by Motogiro View Post
    Crap that's expensive.

    Heres a snap shot of the troubleshooting procedure if you want to make sure before you plung money.

    EDIT: Thats from the '04 manual I have don't know how different the '06 can't imagine too much
    Last edited by LCR; 09-21-2011 at 08:09 AM.

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    Super Moderator Cali rider's Avatar
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    Re: Error Code 12?

    It might just be the plug on the ECU. Pull up the tank, disconnect the plug, spray with WD40, reconnect.
    John





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    Vrrroooooom! Error Code 12? Motogiro's Avatar
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    Re: Error Code 12?

    Check all wires and plugs just in case the problem is not internal. Although unlikely don't discount the rotor may have came loose. I know this is your daily driver and you'll prolly just get it to the shop and repaired. I think at least now you have an idea.

    Looking at the test procedure the device has a solid state component and that may have failed but check all the external, obvious scenarios.
    If you can't fix it by hitting it with a hammer, it's electrical!

    Clif
    SoCal Hoon

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