Fuse Box – Connects to the battery, providing power to various systems.Ignition Switch – Connects to the starter motor.Battery Cable – Represents the positive terminal connection.Components of the 2004 Jeep Grand Cherokee Wiring Diagram The 2004 Jeep Grand Cherokee wiring diagram will have the following components: Other symbols are used to reference wiring and parts of the vehicle. Along each line, different symbols are used to show the types of connections being made. A single electrical line will depict an individual wire in a particular color. Most diagrams are made up of a series of lines that represent different components of the vehicle. Understanding the Jeep Grand Cherokee Wiring Diagram Before getting started with a wiring diagram, it's important to understand how it is laid out. We'll explain what each line represents and how to use it to successfully service your vehicle. In this article, we'll explore the Jeep Grand Cherokee wiring diagram for the model year 2004. But when you want to work on your Grand Cherokee, the wiring diagrams involved can seem daunting. It can take you anywhere you want to go, and it will certainly get you there in style. Unraveling The Mysteries Of Jeep Grand Cherokee Wiring Diagram 2004 The Jeep Grand Cherokee is one of the most popular vehicles of its kind.