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Home >> Ford >> 2018 >> Expedition XLT, 4WD >> Repair and Diagnosis >> Electrical >> Gauges >> Information Center - Instrumentation, Message Center And Warning Chimes (2 Of 2) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test H : The Tachometer Is Inoperative >> Notes

Pinpoint Test H : The Tachometer Is Inoperative: Notes

The Tachometer Is Inoperative 

Normal Operation and Fault Conditions 

See Tachometer. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .

If the IPC does not receive the engine rpm data from the PCM for 5 seconds or longer, the IPC defaults the tachometer to 0 rpm.

Possible Sources