Engine Controls - Self-Diagnostics: Introduction: Notes

Download the full database via torrent (~1.1 TB) | Download Brad's custom LEMON patches

If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES BASIC DIAGNOSTIC PROCEDURES, proceed with self-diagnostics. If no diagnostic trouble codes (DTCs) are present after entering self-diagnostics, proceed to TROUBLE SHOOTING - NO CODES article for diagnosis by symptom (i.e., rough idle, no start, etc.).