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 one or more of the following Diagnostic Trouble Codes (DTCs).
2015 KL Only:
? P0116 - Engine Coolant Temperature Sensor 1 Performance.
? P050D - Cold Start Rough Idle.
? P2172 - High Airflow/Vacuum Leak Detected.
? P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM.
2014 KL Only:
? P2172 - High Airflow/Vacuum Leak Detected.
? P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM.
? P106A - Cylinder 3 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
? P2251 - O2 Sensor 1/1 Negative Current Control Circuit Open.
? P0031 - O2 Sensor 1/1 Heater Circuit Low.
In addition, some customers may experience one or more of the following conditions.
These conditions apply to 2015 model year vehicles only:
? Intermittent elevated engine RPM at start up.
? Less than desired gear engagement in lower ambient temperatures.
? Less than desired idle performance.
