As a scan tool, Bluedriver is excellent for jeeps, about $130 on Amazon, app is free. It can interrogate all modules on the JK, ECU, ABS, TIPM etc. For monitoring PID's Torque is good, in conjunction with a generic interface, but generally limited to ECU PID's. I'm not sure if the auto has a separate controller for the transmission or whether trans control is by the ECU. Also not sure if the hardware exists for trans temp PID monitoring. I'd suggest searching ausjeep or US forums, there'd be a plethora of information there on the topic.

Jack