Engine Controls - Basic Diagnostic Procedures - 7.3L Diesel: Summary

If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to SELF-DIAGNOSTIC SYSTEM in SELF-DIAGNOSTICS - DIESEL - 7.3L article. If no DTCs are found during self-diagnostics, proceed to TROUBLE SHOOTING - NO CODES - DIESEL - 7.3L article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.