2003 48 Support?

[BigCE]

Is the TCM supported in a 03 Cummins? When I click "gather info" it shows a OS # but doesn't populate a controller, when I pick the Dodge controller it fails to read.

[B00STJUNKY]

Is the TCM supported in a 03 Cummins? When I click "gather info" it shows a OS # but doesn't populate a controller, when I pick the Dodge controller it fails to read.

The few transmission controls that are available are in the ECM calibration. There is no separate TCM on these trucks. Just read the calibration (which for the 03-05 trucks isn't a true read, but rather a generated stock file for the particular OS your ECM runs), and click on the Transmission tab, and you'll see what parameters are available.

[BigCE]

There is definitely a separate controller for the trans. Might be called a PCM its on the firewall.

There are no parameters under the trans tab.

[B00STJUNKY]

There is definitely a separate controller for the trans. Might be called a PCM its on the firewall.

There are no parameters under the trans tab.

Sorry, is this not on a Ram with the CTD?

[BigCE]

Sorry, is this not on a Ram with the CTD?

Yes, the ecm is on the engine there is also another module on the firewall that controls the transmission.

[B00STJUNKY]

Yes, the ecm is on the engine there is also another module on the firewall that controls the transmission.

Have a picture of said module? I own and tune my own '05 Ram CTD, and all transmission parameters are found under the transmission tab in the ECM calibration. I have no module on my firewall that controls the transmission. Maybe there's a difference that exists between 03s and the 04 and later models in terms of transmission control module, but this would be the first time I'm hearing of it.

Are you certain you don't have anything in the transmission tab of your ECM file? Did you make sure to select "Advanced" viewing mode in the editor?

[BigCE]

IMG_20171104_154111.jpg
no trans.PNG

Maybe a 03-04 thing I dunno?

[BigCE]

Not in Noob mode either

[Monzsta]

It's a JTEC controller. Don't expect any sort of support from HP Tuners.

[BigCE]

So as it turns out my truck has a 47RE, I didn't know you could get that in a 3rd gen but apparently in 03 you still could.

[Moparmatty]

2003 trucks use the JTEC controller on the fire wall to control the 47RE and 48RE transmissions in the diesel trucks and are not supported.