Section 8 (Engine Controls - Basic Diagnostic Procedures): Introduction

WARNING: This page is about a different car, the 2002 Subaru Outback, 2002 Subaru Legacy, 2002 Subaru Impreza, and 2002 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Before proceeding with basic diagnostic procedures, ensure testing procedure is followed, as some systems which may result in a no-start condition may cause Diagnostic Trouble Codes (DTC) to be stored in the Engine Control Module (ECM). See SELF-DIAGNOSTIC SYSTEM in appropriate SELF-DIAGNOSTICS article.

If no-start condition still exists after checking and repairing all DTCs, perform a careful and complete visual inspection. Many problems result from mechanical breakdowns, poor electrical connections or damaged/misrouted vacuum hoses. See VISUAL INSPECTION under PRELIMINARY INSPECTION & ADJUSTMENTS. Before condemning the computerized system, perform each test listed in this article.

NOTE: Perform all voltage tests with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure.