Check Fuel Fill Inlet Message Display

The Powertrain Control Module (PCM) monitors the fuel tank evaporative emission system for significant leaks that occur following refueling of the vehicle. Once the Powertrain Control Module (PCM) detects a fuel vapor leak, the Powertrain Control Module (PCM) sends a fuel fill inlet message to the Instrument Panel Cluster (IPC) to display the CHECK FUEL FILL INLET message. The Powertrain Control Module (PCM) only sets a fault code following a successful cruise test, which is initiated when the vehicle is driven at a steady speed above 64.36 km (40 mi) for a duration of approximately 4-5 minutes. If the Powertrain Control Module (PCM) is unable to successfully run the cruise test, the Instrument Panel Cluster (IPC) does not receive the fuel fill inlet message and the CHECK FUEL FILL INLET message remains off.