Engine Controls - Tests W/Codes - EEC-IV (1.9L): Introduction

Perform all steps in BASIC TESTING - 1.9L article. If no fault is found while performing BASIC DIAGNOSTIC PROCEDURES, proceed with self-diagnostics. If no diagnostic trouble codes or only pass codes (system functioning properly) are found during self-diagnostics, proceed to the TESTS W/O CODES - EEC-IV (1.9L) article for diagnosis by symptoms.