Check Engine P0851
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This is a discussion on Check Engine P0851 within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Ok so my check engine light when on this morning while warming up the car right after I turned on ...

  1. #1
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    Join Date
    Oct 2008
    Posts
    11

    Question Check Engine P0851

    Ok so my check engine light when on this morning while warming up the car right after I turned on the windshield defroster, on a 2004 Wrx, I heard it could be something with cruise control, but im not sure.

    Malfunction Code:

    P0851
    Park/Neutral
    Switch Input
    Circuit low

    Fixed the problem, went trough all the gears and played around with the park sensor and the check engine went out
    Last edited by Seven04; 12-26-2012 at 11:54 AM.

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