Flash: 6.2L Powertrain Diagnostic And System Enhancements
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 one or more of the
following Diagnostic Trouble Codes (DTCs) stored in the PCM memory.
? P0300 - Multiple Cylinder Misfire (manual transmission applications only).
? P1613 - Turbocharger/Supercharger Boost Pressure Sensor/Mass Air Flow Sensor
Correlation.
? P2227 - Barometric Pressure Circuit Performance
In addition, customers may also comment that, with the cluster set on metric units, they are
unable to accurately increase or decrease the cruise control set speed using the resume or
set buttons. Instead of changing vehicle speed by 1 KPH when pressing the buttons, the
vehicle speed will increase approximately 1.6 KPH.
