Flash: 2.4L Powertrain Diagnostic and System Improvements

Bulletin number

18-006-15

Component

Power train: automatic transmission: control module (TCM/PCM/tecm)

Summary

Flash: 2.4L Powertrain Diagnostic and System Improvements 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 the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: 2015 UF Vehicles, built on or before October 21, 2014 (MDH 1021XX). ? P2172 - High Airflow/Vacuum Leak Detected. ? P1D73 - AGS Performance. ? U0140 - Lost Communication With Body Control Module. 2015 PF Vehicles, built on or before January 08, 2015 (MDH 0108XX). ? Improve cabin warm up in cold weather, when the vehicle is in park or neutral and the temperature is between °10F to °40F (-12C to 4.5C). ? P219A - Bank 1 Air-Fuel Ratio Imbalance. ? P2172 - High Airflow/Vacuum Leak Detected. ? P1D73 - AGS Performance. ? U0140 - Lost Communication With Body Control Module. 2013-2014 PF Vehicles. ? P219A - Bank 1 Air-Fuel Ratio Imbalance. ? P2251 - O2 Sensor 1/1 Negative Current Control Circuit Open. ? P106A - Cylinder 3 Oil Supply Solenoid Valve Switch Off Time Out Of Range. ? P2172 - High Airflow/Vacuum Leak Detected. ? P1D73 - AGS Performance. ? U0140 - Lost Communication With Body Control Module.

Owners of these vehicles have filed 1,175 complaints in the transmission category.