Section 204 (Engine Controls - System & Engine Component Tests - 6.0L (99P F450/550) Diesel): Introduction

WARNING: This page is about a different car, the 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, 2003 Ford Excursion, and 2003 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Diagnosis starts in SYMPTOM DIAGNOSIS under SYMPTOMS in TROUBLE SHOOTING - NO CODES - 6.0L DIESEL article. From SYMPTOM DIAGNOSIS, the technician will be guided through the appropriate diagnostic procedures.

NOTE: Testing individual components does not isolate wiring harness shorts or open circuits. Perform all voltage tests with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate shorted or open wiring harness.