TPMS and Torque app

DougAMiller · May 5, 2019

There is no sensor on the GMT800 platform for oil temperature, but you can get oil pressure. It is PID 22115c. The generally quoted formula is A*0.578, but I developed my own of 0.6*(A-27) which seems to agree better with my Tech2. "Auto" works well for the header for this one.

Jeff Groves · May 5, 2019

Yep. Another thread that is gonna cost me money! :mad3:

TJ Baker · Jun 12, 2021

DougAMiller said:
Here it is formatted so it is more readable:

View attachment 222239

Recent thread about TPMS reminded me of this so I thought I'd add to it. Not that I think anyone is going to need this but you never know.

Edit:forgot a pic...

Mudsport96 · Feb 19, 2022

Way late to the party guys, but is this just for pro? Cant seem to get the Lite version to accept the pids

DougAMiller · Feb 19, 2022

Mudsport96 said:
Way late to the party guys, but is this just for pro? Cant seem to get the Lite version to accept the pids

You may need the pro version create PIDs, I can't recall what restrictions the lite version has, but the pro version is definitely worth the cost.

1454 · May 10, 2024

Sorry for bumping an old thread, I'm just hoping you are still here. How did you search for the PID's? I'm trying to add these to my T1 Silverado, but the PIDs you have don't seem to give me data. It will occasionally give me 255 or 0. I also tried removing the header and leaving it at auto. That didn't seem to help either.

DougAMiller · May 10, 2024

1454 said:
Sorry for bumping an old thread, I'm just hoping you are still here. How did you search for the PID's? I'm trying to add these to my T1 Silverado, but the PIDs you have don't seem to give me data. It will occasionally give me 255 or 0. I also tried removing the header and leaving it at auto. That didn't seem to help either.

Still here, but I don't play around with PIDs so much these days. I have figured out most of the ones I wanted for the Tahoe. I drive a 2021 Escalade most of the time now and most of those PIDs don't work on it. GM has changed them in the newer CANBUS and Global-B protocols.

I figured out many of those PIDs by capturing the data stream between my Tahoe and Tech 2 while scanning the things I was interested in. Then I combed through the data and tested parameters by trial and error until I found the PID I was interested in. In some cases it also required working out the proper header info as well, if it was from a different module other than the ECM (for instance, the tire pressure data is, if I remember correctly, requested from the instrument cluster). GM has moved to a new diagnostic scanner since then and the technique that I used on the Tahoe with the Tech 2 doesn't work on the newer vehicles, so I never figured out the PIDs for those things on my Escalade.

It was complicated enough in the 2005 models, but the newer vehicles have so much going on that, frankly, I lost interest in trying to work it out in them, and I don't have the newer MDI scanner to use on them. Torque is capable of reading most of the info, if you can figure out the PID parameters, but it's become a pretty big job to decipher them these days.

1454 · May 13, 2024

DougAMiller said:
Still here, but I don't play around with PIDs so much these days. I have figured out most of the ones I wanted for the Tahoe. I drive a 2021 Escalade most of the time now and most of those PIDs don't work on it. GM has changed them in the newer CANBUS and Global-B protocols.

I figured out many of those PIDs by capturing the data stream between my Tahoe and Tech 2 while scanning the things I was interested in. Then I combed through the data and tested parameters by trial and error until I found the PID I was interested in. In some cases it also required working out the proper header info as well, if it was from a different module other than the ECM (for instance, the tire pressure data is, if I remember correctly, requested from the instrument cluster). GM has moved to a new diagnostic scanner since then and the technique that I used on the Tahoe with the Tech 2 doesn't work on the newer vehicles, so I never figured out the PIDs for those things on my Escalade.

It was complicated enough in the 2005 models, but the newer vehicles have so much going on that, frankly, I lost interest in trying to work it out in them, and I don't have the newer MDI scanner to use on them. Torque is capable of reading most of the info, if you can figure out the PID parameters, but it's become a pretty big job to decipher them these days.

Thanks for the response Doug.

TJ Baker · Sunday at 11:51 PM

1454 said:
Sorry for bumping an old thread, I'm just hoping you are still here. How did you search for the PID's? I'm trying to add these to my T1 Silverado, but the PIDs you have don't seem to give me data. It will occasionally give me 255 or 0. I also tried removing the header and leaving it at auto. That didn't seem to help either.

Realize I am late to the question here. I have been away from the forum for a while.

Anyway, try adding "01" to the end of the mode&pid you show. So the one you pictured becomes 22249101. An "01" seems to be required a lot of the times when a PID gets no response or a "7F...." response.

If that doesn't work there may be another way altogether to get the data using Torque Pro.

edit: and now I see the user hasn't been seen since the time the question was posted long ago. Maybe others might still find it useful though.

swathdiver · 2024-12-23T03:44:38-0500

TJ Baker said:
Realize I am late to the question here. I have been away from the forum for a while.

Anyway, try adding "01" to the end of the mode&pid you show. So the one you pictured becomes 22249101. An "01" seems to be required a lot of the times when a PID gets no response or a "7F...." response.

If that doesn't work there may be another way altogether to get the data using Torque Pro.

edit: and now I see the user hasn't been seen since the time the question was posted long ago. Maybe others might still find it useful though.

Anyone know how to get the gear selection to work? I used to have it on my old phone but cannot get it working on the new one. This is for GMT900.

TPMS and Torque app

DougAMiller

Full Access Member

Jeff Groves

Retired Demo Expert. I don't need to run anymore!

TJ Baker

Full Access Member

Mudsport96

Full Access Member

DougAMiller

Full Access Member

1454

TYF Newbie

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DougAMiller

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1454

TYF Newbie

TJ Baker

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swathdiver

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