18-067-15 REV A

Flash: PCM Software Enhancements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new 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) set in the Powertrain Control Module (PCM): ? U0140 - Lost Communication With Body Control Module. ? U0401 - Implausible Data Received From ECM/PCM. ? P0441 - Evap Purge System Performance. ? P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor 1. This software update also has improvements for fuel pump relay cycling during remote starts.