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  1. 03-01-2009, 10:12 PM #1
    joetom5
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    Default Can't read codes

    Ok, so I have figured out which code reader/scanner that I need for my 2007 Silverado crew with 4.8 & auto. Now I have to figure out why it will not do anything. I replaced the fuse to the lighter. It was blown. 2 scanners have been tried after replacing the fuse and one did nothing and one lit up but did not establish communication. I can't find anything loose, but don't really know what to check. The truck is stock and runs well. The only electrical work was a brake controller that was simply plugged in a couple of years ago. Any help would be appreciated.

    Joe Tom
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  2. 03-02-2009, 10:08 AM #2
    GaryL
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    I'm sure you know this, but you have to have the key turned on to use the ALDL port to get the codes.
    Gary

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