LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 1994 >> Wrangler S, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Introduction
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Controls - System/Component Tests: Introduction

Before testing separate components or systems, perform procedures in BASIC TESTING article in this section. Since many computer-controlled and monitored components set a trouble code if they malfunction, also perform procedures in the TESTS W/CODES - 2.5L & 4.0L article in this section.

NOTE: Testing individual components does not isolate possible short or open circuits. Unless stated otherwise in test procedure, perform all voltage tests with a Digital Volt-Ohmmeter (DVOM) having a minimum 10-megohm input impedance. Use ohmmeter to isolate wiring harness short or open circuits.
scientia non olet · About LEMON Manuals