Flash: Powertrain Diagnostic And System Improvements
This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated
software.
The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon
further investigation the technician may find one or more of the following Diagnostic
Trouble Code (DTCs):
· **P0456 - EVAP System Small Leak (13 MY only).**
· U0140 Lost Communication With Body Control Module. Attempting to clear the DTC
may be unsuccessful.
Other enhancements included in this update:
· Improved fuel pump relay operation.
· Improved remote start time after key activation.
· Improved Automatic Shutdown Relay (ASD) timer calibration.
