Section 104 (Engine Controls - System/Component Tests - 2.5L): Introduction

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NOTE: Testing procedures not covered in this article require a Chrysler Diagnostic Readout Box (DRB). See appropriate TESTS W/CODES - 2.5L TBI article in the ENGINE PERFORMANCE section.

Before testing individual components or systems, perform procedures in BASIC TESTING - 2.5L article in the ENGINE PERFORMANCE section. Since many computer controlled and monitored components set a fault message if they malfunction, also perform procedures in TESTS W/CODES - 2.5L TBI article in the ENGINE PERFORMANCE section.

NOTE: Testing of individual components does not isolate possible shorts or opens in wiring harness of electronically controlled systems. Perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance unless otherwise instructed in procedure. Use an ohmmeter to isolate wiring harness shorts or opens.