Ford Bronco II Wiring Diagrams

Introduction

Electrical problems can be some of the most frustrating issues to diagnose on an older Bronco II, especially when wiring has been modified, connectors have deteriorated, or factory documentation is difficult to find. Having the correct wiring diagram for your particular year and engine can make troubleshooting much easier.

This collection of Ford Bronco II wiring diagrams covers the 1984–1990 model years and includes engine, charging system, radio, and body wiring. Engine diagrams are provided for the different engines used throughout the Bronco II’s production, including the 2.0L, 2.3L, 2.8L, 2.9L, 4.0L, and diesel engines.

Whenever possible, diagrams are provided in both JPG and PDF formats, making them easier to view on a computer or print for use while working on your Bronco II.

Select the diagram that matches your Bronco II’s model year, engine, and system below.

Electrical Diagrams – Engine

1984 2.8L Engine Wiring Diagram (.JPG) or (.PDF)

1984 2.0L & 2.3L Engine Wiring Diagram (.JPG) or (.PDF)

1984 Diesel Engine Wiring Diagram (.JPG) or (.PDF)

1985 2.3L Engine Wiring Diagram (.JPG) or (.PDF)

1985 2.3L Engine Wiring Diagram – California (.JPG) or (.PDF)

1985 2.0L & 2.3L w/o EEC Engine Wiring Diagram (.JPG) or (.PDF)

1985 2.8L Engine Wiring Diagram (.JPG) or (.PDF)

1985 Body & Fuel Systems (.JPG) or (.PDF)

1986 2.3L & 2.9L Engine Wiring Diagram (.JPG) or (.PDF)

1986 2.0L Engine Wiring Diagram (.JPG) or (.PDF)

1986 Diesel Engine Wiring Diagram (.JPG) or (.PDF)

1987 2.0L Engine Wiring Diagram (.JPG) or (.PDF)

1987 2.3L & 2.9L Engine Wiring Diagram (.JPG) or (.PDF)

1987 Diesel Engine Wiring Diagram (.JPG) or (.PDF)

1988 2.3L & 2.9L Engine Wiring Diagram (.JPG) or (.PDF)

1989 2.3L & 2.9L Engine Wiring Diagram (.JPG) or (.PDF)

1990 2.3L Engine Wiring Diagram (.JPG) or (.PDF)

1990 4.0L Engine Wiring Diagram (.JPG) or (.PDF)

Wiring Diagram – Charging System

Charging System – 1984-1985

Wiring Diagrams – Radio

Radio Wiring Diagram – Typical 1-of-2

Radio Wiring Diagram – Typical 2-of-2

1990 Bronco II Base Radio Wiring Diagram

1990 Bronco II Premium Radio Wiring Diagram

Wiring Diagram – Body

1984 Bronco II Body Wiring Diagram (.JPG) or (.PDF)

1985 Bronco II Body Wiring Diagram (.JPG) or (.PDF)

1986 Bronco II Body Wiring Diagram (.JPG) or (.PDF)

1987 Bronco II Body Wiring Diagram (.JPG) or (.PDF)

1988 Bronco II Body Diagram #1 (.JPG) or (.PDF)

1988 Bronco II Body Diagram #2 (.JPG) or (.PDF)

1988 Bronco II Body Diagram #3 (.JPG) or (.PDF)

1988 Bronco II Body Diagram #4 (.JPG)

1989 Bronco II Body Wiring Diagram (.JPG) or (.PDF)

1990 Bronco II Body Wiring Diagram (.JPG) or (.PDF)