I wonder if even possible to add transmission temperature display to the DIC in a 08+ Express van.

07-14 GMT-900 Silverado etc have the trans temp displayed in the DIC, but the vans do not, although it is very useful when towing trailers in the mountains.

 

I have DPS and can pull files from the SPS.

I found the clear text in the binaries.

I have tried putting a 13 calibration into a 2008 cluster using DPS. It threw an error and the cluster is now bricked, and not responding.
Then I tried to put a 13 calibration in a 2012 cluster and it is now stuck in an infinite reboot loop.

I have a few more clusters I can afford to kill, but is what I want even feasible?

I am pretty sure the ECM is broadcasting the trans temp over GMLAN (because why not). Where are the instructions for the DIC stored, to pull the proper information?

Are any changes to the BIN files allowed? Can I change, for example, "SPEEDOMETER" to "   SPEED   ", and have it program successfully, or is there some sort of checksum validation happening internally? 
 

First you should check if gearbox temp is visible in GDS2, then it will depend of cluster type and finally to be possible to see gearbox temp on dash you no need to edit Calibrations files, you need to execute custom XML file which enable/disable|show/hide menus, extras and so on to be display on speedometer

12 hours ago, Lyubomir Krastanov said:

First you should check if gearbox temp is visible in GDS2, then it will depend of cluster type and finally to be possible to see gearbox temp on dash you no need to edit Calibrations files, you need to execute custom XML file which enable/disable|show/hide menus, extras and so on to be display on speedometer

Interesting. Trans temp is visible in GDS2, for sure.

How can I get the XML, as SPS only puts 3 bin files in the cache folder?

XML files come from Setup, not from Programming option

54 minutes ago, Lyubomir Krastanov said:

XML files come from Setup, not from Programming option

And if there is no Setup, what can I do?

5 hours ago, Crocodile said:

 

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The topics are interesting. Did you manage to flash the ipc? Does the temperature inscription appear on the device?

6 minutes ago, Kirill Kirill said:

The topics are interesting. Did you manage to flash the ipc? Does the temperature inscription appear on the device?

The OAT display is easy as it's a factory option UFA, just flash the IPC with a calibration from a UFA van and it works. 

I still was not able to obtain the XML, there is no IPC "Setup" option in the SPS for these vans. Does anybody know?