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Trouble code P1637, Help! What is it?

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  1. #1
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    Question Trouble code P1637, Help! What is it?


    I am getting DTC# P1637 it is coming up as “Generator L-terminal circuit” what exactly dose this mean? Have I blown something? What the hell is it? What causes it? I have no clue what exactly this refers to. I just recently changed my alternator a few months ago I hope that is no the problem. If you have any insight to that this means it would be greatly appreciated.
    Thanks

  2. #2
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    Yeah, it relates to the alternator. Look it up at www.gearchatter.com

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    Thanks. I'll give it a try.

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    Wow! thats a greate sight with a ton of good info. Thanks again that certinatly cleared things up for me.

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