Greetings,
After searching this Forum pretty extensively and looking at the custom GM list in Torque Pro, it seems that Odometer reading from the C5 should be available but I have not had success getting Torque to show a value for the Odometer reading. Other data such as RPM, O2 sensors, etc. are working fine. I know the Odometer can be read somehow because a shop that did some work on the car read it with their high-end diagnostic tool so for sure the data exists and can be accessed somehow. Anyone know how to get Torque to display actual Odometer reading from a 1999 C5 Corvette?

Happy 2022!

On a GM vehicle of that era, the odometer is probably being queried by what’s known as “functional addressing”. If so, find some app (Torque Pro?) that can send manual commands from a “terminal”, then issue the following commands, without the leading ELM327 ‘prompt’ character (‘>’):

>ATZ
>ATE0
>ATTP 2
>ATSH 89 7A F1
>01

If the reply to that final command is something like this:

01 ww xx yy zz

Then there’s a good chance that the 32-bit unsigned integer value represented by the last 4 bytes (wwxxyyzz) after division by 64 (i.e. “ABCD/64”) is the odometer reading in kilometers.

As for making that work in Torque Pro, you’re on your own. Since Torque Pro is only available via Google Play, I only have Torque Lite, which can’t do any of this stuff.

Good luck! And please let the forum know if that works or not.