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 the Linear Solenoid 7 circuit for electrical failures by continuously monitoring the solenoid output circuit feedback current for high, low, or open conditions. The TCM controls each linear solenoid via pulse-width modulation for precise control of the hydraulic circuit pressure. If the monitored Linear Solenoid 7 output circuit feedback current is greater than or equal to a calibrated high threshold (circuit high) or is less than or equal to a calibrated low threshold (circuit low or open) for a calibrated amount of time, a DTC will be set.

NOTE:

Although the name for this DTC indicates it is for Pressure Control Solenoid 1, this DTC actually sets for the Torque Converter Clutch Pressure Control Solenoid 7.