PINPOINT TEST AH : The CHECK FUEL FILL INLET Message Is Inoperative or Always On: Notes
Diagnostic Overview
Refer to Message Center , Check Fuel Fill Inlet Message Display.
Normal Operation and Fault Conditions
If the IPC does not receive the fuel fill inlet message from the PCM for 5 seconds, the IPC sets DTC U0100:00 in continuous memory and defaults the CHECK FUEL FILL INLET message off.
PCM DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P0457 | Evaporative Emission System Leak Detected (Fuel Cap Loose/Off) | Sets in the PCM if the PCM detects a significant evaporative fuel system leak after refueling occurs. |