Normal Operation
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
The instrument cluster (IC) receives the engine RPM data from the PCM over the high speed controller area network (HS-CAN) communication bus. The instrument cluster (IC) commands the tachometer according to the data received from the PCM.
This pinpoint test is intended to diagnose the following:
- PCM
- Instrument cluster (IC)