Theory Of Operation
WARNING: This page is about a different car, the 2010 Dodge Avenger and 2010 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
The Transmission Control Module (TCM) monitors the operation of the two Input Speed Sensors. If a fault is detected, depending on which gear the transmission is in when detected, the TCM will enable one or more calibrated shift and pressure strategies to avoid damage to the transmission. It takes two consecutive one trip failures to set this DTC and illuminate the MIL