Flash: 3.6L and 5.7L Powertrain Diagnostic And System Enhancements
This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest
available software.
Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon
further investigation the technician may find one or more of the following Diagnostic
Trouble Codes (DTCs):
· **P0335 - Crankshaft Position Sensor Circuit.
· P2610 - PCM Internal Engine Off Timer Performance. (5.7L only).**
· P0456 - EVAP System Small Leak.
· P1D73 - Active Grill Shutter (AGS) Performance.
**In addition to the above DTCs, this software release also includes:
· Improved shift quality during initial operations of a vehicle in cold ambient
temperatures. (5.7L only).
· Improved key-on engine-off oil pressure lamp behavior.**
