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Pinpoint Test AY : The Check Fuel Fill Inlet Message Is Inoperative Or Always On: Notes

Normal Operation and Fault Conditions 

See Check Fuel Fill Inlet Message Display. Refer to Information And Message Center .

If the IPC does not receive the fuel fill inlet indication message from the PCM for less than 5 seconds, the IPC defaults the check fuel fill inlet message to the last indication mode based on the last message received.

If the IPC does not receive the fuel fill inlet indication message from the PCM for 5 seconds or longer, the IPC sets DTC U0100:00 in continuous memory and defaults the check fuel fill inlet message off.

Possible Sources 

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