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:
· **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 Rati
· 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, the customers may experience the following:
· A slight bump may be felt during the 4-5 shift, under light acceleration.
