Engine Controls - System & Component Testing: Introduction

NOTE: This article also applies to Honda Passport. For Passport coverage, refer to Rodeo, unless otherwise indicated.

NOTE: For circuit identification, see appropriate wiring diagram in WIRING DIAGRAMS article.

NOTE: Testing individual components does not isolate shorts or opens. Perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens. Testing procedures not covered in this article require a scan tool. See appropriate SELF-DIAGNOSTICS article.

Before testing separate components or systems, perform procedures in BASIC DIAGNOSTIC PROCEDURES article. Since many computer-controlled and monitored components set a diagnostic trouble code if they malfunction, also perform procedures in appropriate SELF-DIAGNOSTICS article.