PCM Graphs and Charts: Procedures

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2004 Ford RV Cutaway, 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, and 2004 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.

Check all power and ground connections for the PCM and FICM.
Inspect the CMP sensor and the CKP sensor harness connectors and the harness for a signal short to ground condition.
Remove and inspect the CMP camshaft position sensor and CKP crankshaft position sensor for possible damage.
If the PCM reset condition is repeatable, disconnect the following sensors one at a time and operate the engine to determine if the reset will reoccur: EP sensor, ICP sensor, MAP sensor, APP sensor, EGR sensor. Inspect each harness, including the connector upon removal.
Remove the valve covers and inspect the under valve cover wiring for possible rub through against the valve train.