Flash: MIL Illumination P000B, P050B and/or P2173. Includes Driveability/Transmission
Enhancements
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (PCM) with new software.
A small number of customers may experience a Malfunction Indicator Lamp (MIL)
illumination. Upon further investigation the Technician may find that any of the following
Diagnostic Trouble Codes (DTC's) have been set:
? P000B- Exhaust Slow Response Bank 1
? P050B- Cold Start Ignition Timing Performance
? P2173- High Airflow/Vacuum Leak Detected (Slow Accumulation)
Driveability and Transmission Enhancements are also included with this software
release. These changes include the following:
? Engine idles rough after an overnight soak but clears up as the engine warms up
? Improved garage shift feel and quality
? Improved extended idle evap purge strategy
? Reduced visible steam from under hood when idling in cool, damp conditions
Updating the software will correct the conditions listed above.
