Recommended Procedure
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Ford RV Cutaway, 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, and 2003 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
Connect scan tool to Data Link Connector (DLC). Using scan tool, access FUEL PW PID from PID/DATA MONITOR & RECORD menu. Crank engine while monitoring FUEL PW PID reading. If FUEL PW PID reading indicates 1-6 milliseconds, go to GLOW PLUG SYSTEM OPERATION TEST . If FUEL PW PID reading does not indicate 1-6 milliseconds and VPWR, RPM and ICP PID readings are okay, check for Camshaft Position (CMP) sync signal fault. See TEST DF: CAMSHAFT POSITION SENSOR under SYSTEM TESTS in SELF-DIAGNOSTICS - 7.3L DIESEL article.