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Thread: How to find PID number Scanner is using

  1. #1
    Tuner in Training
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    Oct 2011
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    How to find PID number Scanner is using

    Using a Version 3 Scanner, I can set up a gauge showing my Transmission Temperature on my 2008 Chevy Trailblazer SS.
    Is there a way to find out the PID number and OBD2 parameters that the Scanner used to access this manufacturer specific parameter?
    Last edited by lsx-geezer; 07-24-2017 at 09:46 AM. Reason: add additional info

  2. #2
    Potential Tuner
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  3. #3
    Tuner
    Join Date
    Oct 2014
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    Moscow, Russia
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    PID 1940 TRANSMISSION TEMPERATURE
    ?C = N - 40
    This is non-defaulted direct sensor readings.

    Or you can just sniff CAN for message $4C9. Second byte is failsafe Trans Temp with the same convertion as PID.
    2011 Cadillac Escalade L94 w/LS3 valves and valve springs