Flash: Transmission Diagnostic And Shift Enhancements
This bulletin involves reprogramming the Transmission
Control Module (TCM) with the latest available software.
A small number of customers may experience a Malfunction
Indicator Lamp (MIL) illumination. Upon further investigation the
technician may find the following Diagnostic Trouble Codes (DTCs)
set in the TCM memory:
P1DB8-00 - Unintended Torque Applied While In Neutral.
U1424-00 - Implausible Engine Torque Signal Received.In addition to the above DTCs, this software release also
includes:
Improved transmission shifting during a limp mode.
