18-068-15

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 Diagnostic Trouble Code (DTC) U0401-00 - Implausible Data Received From ECM/PCM. This software update also has improvements for fuel pump relay cycling during remote starts.