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Pinpoint Test F: The Speedometer Is Inoperative: Notes

Diagnostic Overview 

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for information about these practices.

Normal Operation and Fault Conditions 

Refer to Speedometer in Instrument Panel Cluster (IPC) .

NOTE: If DTC U0100:00 is set in the IPC, other observable symptoms may be an inoperative tachometer, temperature gauge or odometer.

If the IPC does not receive the vehicle speed data from the PCM for more than 5 seconds, the IPC sets DTC U0100:00 in continuous memory and defaults the speedometer to 0 km/h (0 mph). If the vehicle speed data is deemed invalid by the IPC for 5 seconds or more, the IPC sets DTC U0401:81 and defaults the speedometer to 0 km/h (0 mph).

Possible Sources 

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