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 DTCs set in the TCM memory:
P061B - Internal Control Module Torque Calculation Performance.
P072F - Stuck In Gear 4.
P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (2015 BU only).
P0887 - TCM Power Control Circuit High (2015 BU only).
P1CC9 - Unable to Engage Gear (2015 BU only).
P1D98 - Incorrect Gear Ratio Clutch B or D Defective (2015 BU only).
U0401 - Implausible Data Received From ECM-PCM (2015 BU only).In addition, customers may experience the following conditions:
CAN Bus message may drop out after a network restart.
Harsh 1-2 Upshift.
Harsh Garage Shifts (Park to Reverse or Drive).
