Monitored & Set Conditions
WARNING: This page is about a different car, the 2002 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
Messages from Transmission Control Module (TCM) are monitored with ignition on and battery voltage greater than 10 volts. DTC will set if no bus messages are received from TCM for 20 seconds on 2 trips.