Theory Of Operation
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.
The purpose of the diagnostic is to check if the torque converter clutch is not engaged while the TCM is commanding the torque converter clutch solenoid to engage. The TCM individually commands a total of 7 linear solenoids to control hydraulic valves and clutch pressures in the Transmission. Torque converter clutch pressure is controlled by the linear solenoid Number 6. If the absolute value of the difference between engine speed (CAN message) and turbine speed (sensor) is greater than a calibrated threshold for calibrated amount of time, a DTC will be set.