Engine Self-Diagnostics - Except Convertible: Introduction

Perform all steps in BASIC DIAGNOSTIC PROCEDURES - CARS article. If no fault is found while performing basic diagnostic procedures, proceed with self-diagnostics. If no Diagnostic Trouble Codes (DTC) are found during self-diagnostics, proceed to TEST NTC-1: NO TROUBLE CODE TEST MENU  under DIAGNOSTIC TESTS or appropriate TROUBLE SHOOTING - NO CODES article for diagnosis by symptom.