Used copy of Factory Softcover manual with shelf wear.

This Diagnostic Test Procedure covers 1990 vehicles equipped with 3.0L engines with electronic fuel injection.

Contents:

DRB II Cartridge Diagram

Connector Pinout/Wiring Diagrams

Introduction

• Diagnostic Test Procedures
• The On-Board Diagnostic System
• Speed Control & Charging Fault Messages
• On-Board Diagnostic Features
• Charging System Contents
• Speed Control System Function
• Speed Control System Components
• Required Tools and Equipment
• After the Problem Has Been Found & Repaired
• Connecting the DRB II
• DRB II Problems and Error Messages
• Operation of the DRB II
• How to Use The DRB II Volt/Ohmmeter
• Using a Digital Volt/Ohmmeter
• Using a Digital Volt/Ohmmeter For Resistance Measurements

Visual Inspection

No Start Tests

Driveability Tests

Verification Procedures