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Section 7 (Engine Control - System & Component Testing - Except S40 & V40): Introduction

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2000 Volvo V70, 2000 Volvo S80, 2000 Volvo S70, 1999 Volvo V70, and 1999 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.

Before testing separate components or systems, perform procedures in BASIC DIAGNOSTIC PROCEDURES article. Since all monitored components set a Diagnostic Trouble Code (DTC) if they malfunction, see appropriate SELF-DIAGNOSTICS article.

NOTE: Testing individual components does not isolate shorts or opens. Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. Use ohmmeter to isolate wiring harness shorts or opens.
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