Flash: 2.4L 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 the following symptoms below or a
Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician
may find one or more of the following Diagnostic Trouble Codes (DTCs).
? P0133 - O2 Sensor 1/1 Slow Response.
? P0506 - Idle Speed Performance Lower Than Expected.
? P0507 - Idle Speed Performance Higher Than Expected.
? U0402 - Implausible Data Received From TCM.
? P0171 - Fuel System 1/1 Lean.
? P050D - Cold Start Rough Idle.
? Increased RPM on start up.
? Reduced RPM when shifted into drive or reverse when cold.
