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 DTCs set in
the PCM memory:
· **P1185 - General Pressure Sensor Correlation.**
· P0101 - Mass Air Flow Sensor "A" Circuit Performance.
· P050D - Cold Start Rough Idle.
· P0335 - Crankshaft Position Sensor Circuit.
· P2610 - PCM Internal Engine Off Timer Performance.
P1607 - PCM Internal Shutdown Timer Rationality.
· P0133 - O2 Sensor 1/1 Slow Response.
· U0402 - Implausible Data Received From TCM.
· U1424 - Implausible Engine Torque Signal Received.
· P0456 - EVAP System Small Leak.
· P0480 - Cooling Fan 1 Control Circuit/Open.
**In addition, software enhancements include:
· Improvement to 4-5 upshift.**
