18-073-15

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: * U0402 - Implausible Data Received From TCM. * U1424 - Implausible Engine Torque Signal Received. * P0133 - O2 Sensor 1/1 Slow Response. * 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.