1) Check and test the coolant and level.
2) Monitor the coolant temperature from cold to hot (it will climb from ambient to operating temperature).
3) Monitor the transmission temperature, it too will climb.
4) Access any recorded faults with the entire network and post them so the readers can view them.
Idle air control is via throttle body angle (gasoline engine).
If it is a gasoline engine, the throttle body voltage and or degree of throttle angle can also be monitored.
Simple OBD II scan equipment can offer "good enough" data to monitor those values.
One last point, does that Ram have a thermostat? Has it been tuned?
If it has been tuned, revert to the original tune and test again.
2) Monitor the coolant temperature from cold to hot (it will climb from ambient to operating temperature).
3) Monitor the transmission temperature, it too will climb.
4) Access any recorded faults with the entire network and post them so the readers can view them.
Idle air control is via throttle body angle (gasoline engine).
If it is a gasoline engine, the throttle body voltage and or degree of throttle angle can also be monitored.
Simple OBD II scan equipment can offer "good enough" data to monitor those values.
One last point, does that Ram have a thermostat? Has it been tuned?
If it has been tuned, revert to the original tune and test again.