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Home >> Ford >> 2012 >> Explorer Limited, 3.5 8, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 254 (Information Center - Instrumentation, Message Center, And Warning Chimes) >> Description And Operation >> Instrument Panel Cluster (IPC) >> System Operation >> Tachometer

System Operation: Tachometer

WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

The PCM  uses the CKP sensor to measure the engine Revolutions Per Minute (RPM). The IPC  uses the engine Revolutions Per Minute (RPM) data message from the PCM  to control the tachometer.

The base and optional IPC  tachometers appear differently but function the same. The base IPC  uses an analog gauge. The optional IPC  uses a digital display that provides a 6, 000 Revolutions Per Minute (RPM) bar graph or a simulated 7, 000 Revolutions Per Minute (RPM) analog gauge display depending on the selected display mode.

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