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Pinpoint Test An : An Electronic Throttle Control (Etc) Or Engine Malfunction Display Is Always On: Notes

WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.

Normal Operation and Fault Conditions 

See Electronic Throttle Control (ETC) or Engine Malfunction Displays. REFER to: Warning Chimes - System Operation and Component Description .

If the engine MIL request message is missing for less than 2 seconds, the IPC defaults the engine malfunction message center display to its last state (on or off) based upon the last known good message received.

If the BCM does not receive the engine MIL request message for 2 seconds or longer, the BCM and the IPC set DTC U0100:00.

If the engine MIL request message is missing, the IPC defaults the engine malfunction display on.

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