Self-Diagnostic System: Introduction

Use Chrysler Motors code charts when using Chrysler's Diagnostic Readout Box (DRB-II). See DRB-II CODE CHARTS. If DRB-II is not available, system diagnosis can only be accomplished using a voltmeter or appropriate scan tester. To diagnose using a voltmeter, see ENTERING ON-BOARD DIAGNOSTICS (USING VOLTMETER) in this article.