Flash: Transmission Diagnostic and Shift Enhancements
This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software.
Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs:P1634 - TCM Internal Watchdog Performance.
P0887 - TCM Power Control Circuit High.
P1720 - Output Speed Sensor-Wheel Speed Rationality.
P1DCCD - TCM Monitoring Processor Performance Multiple Clutches Locked Up.
P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance.
P1DAD - Input Shaft-Output Shaft Direction Correlation.
P1CC9 - Unable To Engage Gear.
This software release also includes the following improvements:Calibrations to support changes in air flow to protect the catalyst.
Transmission shift quality.
Enable the capability to capture non-DTC control module data through the Uconnect data recording system.
