all MY07~ on wrangler has trans temp sensor, and the onboard computers are capable of reporting the trans temp. But the PIDs (internal identifier to the sensor) are chrysler proprietary info. Many of these OBD softwares wont be able to see the temp sensor unless the s/w developer paid chryser for the access license or hack the CAN bus.
Chrysler has a habbit of using the same PID for different sensors across different model. so the PID for CRD and petrol's trans temp sensors are likely to be different, as such, an app that can read the trans temp on petrol may not be able to read the same info from a CRD.
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