Engine Self-Diagnostics - With Codes: Introduction: Notes

Perform all steps in appropriate BASIC DIAGNOSTIC PROCEDURES article. If no fault is found while performing BASIC DIAGNOSTIC PROCEDURES, proceed with self-diagnostics. If no Diagnostic Trouble Codes (DTCs) are found during self-diagnostics, proceed to appropriate TROUBLE SHOOTING - NO CODES article for diagnosis by symptom, or NTC tests toward the end of this article.