RAM 1500 Truck 2WD V8-5.7L VIN 2 (2006)
switches is to help the TCM detect when clutch circuit hydraulic failures occur. The switches close at 2-3 psi and open at 11 psi, and simply indicate
whether or not pressure exists. The switches are continuously monitored by the TCM for the correct states (open or closed) in each gear as shown in
the following charts 45RFE PRESSURE SWITCH STATES and 545RFE PRESSURE SWITCH STATES
45RFE PRESSURE SWITCH STATES
545RFE PRESSURE SWITCH STATES
A Diagnostic Trouble Code (DTC) will set if the TCM senses any switch open or closed at the wrong time in a given gear.
