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Updated OBDII mapping guide for standard and extended PIDs
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Post Updated OBDII mapping guide for standard and extended PIDs 
We have a vastly expanded OBDII mapping guide which will show you how to map standard and extended (Mode22) PIDs. Check it out here:

https://wiki.autosportlabs.com/RC_OBDII

Please let us know here how it works for you, and if we've missed anything.

Thank you,


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Brent Picasso
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Copying a question I posted on your FB page:

Can I get some help trying to get extended OBDII working? Ford Focus RS and trying to get TPMS data.
It works correctly with Torque using their default setting: PID 222813, equation (((256*A)+B)/3+22/3)*0.145
I'm using OBDII PID 10259,22h, CAN ID 2024, Offset 4 length 2 unsigned, big endian
I've also tried 29bit mode.
How do I debug this? I get no data (only 0's) I also see something about squelching that channel in the Info log. Not sure what that means.

Digger deeper, maybe I need to set the OBD header? In Torque it's changed from the default to 726 (hex I think). I don't think we have the option to change that in RC.

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Hi, can you post a link to the torque docs that show how the header is changed? We'll see if we can adapt it.

Thanks,


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Brent Picasso
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Of course I can't find any documentation on the Torque Pro extended PIDs.

It just says it has a header of 726. Other header values I've seen are "Auto" "ABS" "TCM" and blank.
Another value I've been sort of able to retrieve had a blank header, but the data received didn't match the expected values, but it sent back something.

Is there a simple lua script to send something out and monitor what comes back?

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Here's are two examples of manual OBDII querying:

https://gist.github.com/brentpicasso/ed76d612be30edfb3f9b4336a3588424
https://gist.github.com/brentpicasso/7a11e385460bf02c5ec3ce6c70024041

You can see how the request / reply works. Not sure what Torque means be "header" - if you can clarify that we can understand where it fits in the standard OBDII query / response.

Let us know what you find out. Thanks!


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Brent Picasso
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While I look at that lua code... here's another post on another forum that goes into more details about the exact PID I'm looking for.

https://www.clublexus.com/forums/is-2nd-gen-2006-2013/885826-custom-pid-for-tpms-read-out-on-torque-pro-app-with-obdii-eml-327-reader.html

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