When Monitored

WARNING: This page is about a different car, the 2016 RAM 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.

This diagnostic runs continuously when the following conditions are met:

TCM Supply Voltage is between 10-16 volts.
Engine speed (CAN Message) is greater than 550 RPM.
No RUN position switch related DTCs set.
No shift range sensor DTCs set.
No output speed sensor DTCs set.
Shift range indicator is not in either the park or neutral position.
Output speed is greater than 807 RPM.
One or more of following failures is present:
- Turbine speed sensor failure.
- Cyclic Redundancy Check (CRC) message failure between the TCM and ESC.
- Message Counter (MC) message failure or between the TCM and ESC.
- Loss of communication failure between TCM and ESC.
- Wheel speed Signal Not Available (SNA) failure.