Engine Controls - Self Diagnostics - 3.0L: Summary

If no there are no DTCs or provisional codes, and driveability symptoms exist, proceed to TROUBLE SHOOTING - NO CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures. See INTERMITTENT DIAGNOSTIC TROUBLE CODES  under ON-BOARD DIAGNOSTICS under SELF-DIAGNOSTIC SYSTEM.