Flash: Powertrain Diagnostic and System Improvements
This bulletin involves reprogramming the Powertrain Control Module (PCM) 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 PCM memory:P1D83 - Implausible Engine Oil Temperature Signal Received (Software has been updated to better address this DTC).
U1504 - Implausible Message Data Length Received From Steering Angle Sensor.
U1424 - Implausible Engine Torque Signal Received.
P0456 - EVAP System Small Leak.
P0335 - Crankshaft Position Sensor Circuit.
U0402 - Implausible Data Received From TCM - (Transmission Control Module).
B10EA - Blower Motor Control Circuit High.
B10E9 - Blower Motor Control Circuit Low.
P0441 - EVAP Purge System Performance.
P0116 - Engine Coolant Temperature Sensor Performance.
P2067 - Fuel Level Sensor 2 Circuit Low (International Only).
In addition the customer may notice one of the following conditions:A push/bump feeling when the transmission is downshifting from eighth to seventh gear.
Vehicle shudder at stop/start with A/C on.
Software enhancement also includes:Calibration update to allow the throttle body to be cycled while the engine is off, for diagnostic purposes.