Section 15 (Engine Controls - System/Component Tests): Introduction

WARNING: This page is about a different car, the 1996 Volvo 850. 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 TESTING article. Since all monitored components set a Diagnostic Trouble Code (DTC) if they malfunction, see appropriate articles; For Motronic 4.3L see TESTS W/CODES , For Motronic 4.4L see TESTS W/CODES .

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.