18-001-25

"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit one or more of the following Diagnostic Trouble Codes (DTCs):
• P245D - EGR Cooler Bypass Control Circuit High.
• P02E3 - Diesel Intake Air Flow Control Circuit High.
• P0490 - EGR Control circuit High.
• P229F - Aftertreatment N0X Sensor Circuit Performance - Bank 1 Sensor 2.
• P0299 - Turbocharger Underboost.
• P242F - Diesel Particulate Filter Restriction - Ash Accumulation.
• P0128 - Thermostat Rationality. In addition, the following software enhancements are available:
• Improved troubleshooting and repair accuracy for air handling components.
• Eliminates false faults for air handling actuators. This bulletin involves reprogramming the ECM/PCM with the latest available software"