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Clearing and Reading Diagnostic Trouble Codes

Discussion in 'GM Powertrain' started by Maudite, Aug 25, 2009.

  1. Maudite

    Maudite New Member

    A relative has a 1997 Tahoe and after starting it threw a check engine light. Is there a way to read what code was thrown without getting a scanner? Some makes it’s just a combo of turning the key and doing something else. Also can I clear the code by removing the battery cables? Just trying to find a way that they don’t need to go into a auto parts place, get it cleared for free then getting the upsale before I get into town with my scanner.

  2. tattooed4life

    tattooed4life Epic Member 5+ Years 500 Posts

    I don't believe there is anyway of doing what you want without a scanner. Even disconnecting the battery will not clear the codes that are stored in the computer, only clear the dash light.
  3. Maudite

    Maudite New Member

    Thanks for the reply, I will just have them wait til I get in town.


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