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 Diagnostic Trouble Codes
(DTCs) set in the PCM memory:
P0335 - Crankshaft Position Sensor Circuit.
P0456 - Evap System Small Leak.
P219A - Bank 1 Air Fuel Ratio Imbalance.
P050B - Cold Start Ignition Timing Performance.The following software enhancement is also available:
Engine is hard to start at temperatures -29°C (-20°F) for vehicles utilizing E15 fuel only (Sales Code ECN).
Cruise control acceleration rate may be considered objectionable to some customers if the accel button is held down.
