The 1998 Mitsubishi Eclipse is a compact sports car with a unique style and a powerful engine. Like any other car, it requires a proper electrical system to function efficiently. The wiring diagram of the Eclipse can help you determine how to repair or upgrade the electrical system of your vehicle. In this article, we will discuss the 1998 Mitsubishi Eclipse wiring diagram in detail.
What is a Wiring Diagram?
A wiring diagram is a graphical representation of the electrical circuitry of a vehicle. It shows the different components of the electrical system, their connections, and the flow of current between them. Wiring diagrams use symbols to represent the components of the system and the connections between them. Understanding the wiring diagram is important when repairing, modifying or upgrading the electrical system of your vehicle.
How to Read a Wiring Diagram
Before we dive into the details of the 1998 Mitsubishi Eclipse wiring diagram, let’s first discuss how to read a wiring diagram. Here are the basic steps:
- Identify the components of the electrical system from the legend or key.
- Trace the flow of current from the battery to the different components and back to the battery.
- Check for any switches, relays, or fuses that control the flow of current.
- Check for any grounding points that connect different components to the chassis of the vehicle.
The Components of the 1998 Mitsubishi Eclipse Electrical System
The 1998 Mitsubishi Eclipse electrical system is composed of several components, including:
- The Battery – provides the electrical energy to start the engine and power the electrical components.
- The Alternator – charges the battery and supplies the electrical energy to power the electrical components when the engine is running.
- The Starter – engages the flywheel to start the engine.
- The Ignition Coil – converts the low voltage from the battery into high voltage to ionize the spark plugs.
- The Spark Plugs – ignites the fuel mixture in the cylinders to power the engine.
- The Distributor – distributes the high voltage from the ignition coil to the spark plugs in the correct firing order.
- The Relays – control the flow of current to different components, such as the headlights, the fuel pump, and the cooling fan.
- The Fuses – protect the electrical system from overloading or short circuits.
- The Switches – control the flow of current to different components, such as the headlights, the turn signals, and the power windows.
The 1998 Mitsubishi Eclipse Wiring Diagram
The 1998 Mitsubishi Eclipse wiring diagram is divided into several sections, including:
- Engine Compartment Diagram
- Interior Diagram
- Power Distribution Diagram
- Ground Distribution Diagram
- Joint Connector Diagram
Engine Compartment Wiring Diagram
The engine compartment wiring diagram shows the wiring connections of the different components located in the engine compartment, such as the alternator, the starter, the ignition coil, and the distributor. Here is a summary of the different sections:
| Section | Contents |
|---|---|
| Engine Control System | Includes the wiring connections between the PCM (Powertrain Control Module) and the different sensors and actuators of the engine. |
| Starting System | Includes the wiring connections between the starter motor, the ignition switch, the PCM, and the battery. |
| Charging System | Includes the wiring connections between the alternator, the battery, the PCM, and the fuse and relay box. |
| Ignition System | Includes the wiring connections between the ignition coil, the distributor, the spark plugs, the PCM, and the battery. |
| Fuel Injection System | Includes the wiring connections between the fuel injectors, the fuel pump, the PCM, and the battery. |
Interior Wiring Diagram
The interior wiring diagram shows the wiring connections of the different components located inside the vehicle, such as the power windows, the climate control system, and the audio system. Here is a summary of the different sections:
| Section | Contents |
|---|---|
| Power Windows | Includes the wiring connections between the power window switches, the power window motors, the fuse and relay box, and the battery. |
| Clock and Audio System | Includes the wiring connections between the audio system, the antenna, the clock, and the battery. |
| Climate Control System | Includes the wiring connections between the climate control switches, the blower motor, the A/C compressor, the PCM, and the battery. |
| Cruise Control System | Includes the wiring connections between the cruise control switches, the cruise control actuator, the PCM, and the battery. |
| Security System | Includes the wiring connections between the security system, the keyless entry system, and the PCM. |
Power Distribution Wiring Diagram
The power distribution wiring diagram shows the wiring connections of the different components that receive power directly from the battery or the alternator. Here is a summary of the different sections:
| Section | Contents |
|---|---|
| Main Fuse and Relay Box | Includes the wiring connections between the fuses, the relays, the battery, and the alternator. |
| Power Supply Routing | Includes the wiring connections between the battery, the alternator, the starter motor, and the power distribution box. |
Ground Distribution Wiring Diagram
The ground distribution wiring diagram shows the wiring connections of the different components that are grounded to the chassis of the vehicle. Here is a summary of the different sections:
| Section | Contents |
|---|---|
| Ground Strap | Includes the wiring connections between the ground strap, the battery, and the chassis of the vehicle. |
| Ground Cable | Includes the wiring connections between the ground cable, the battery, and the engine. |
| Grounding Points | Includes the wiring connections between the different components and the chassis of the vehicle. |
Joint Connector Wiring Diagram
The joint connector wiring diagram shows the wiring connections of the different connectors that join two or more wiring harnesses. Here is a summary of the different sections:
| Section | Contents |
|---|---|
| Engine Harness | Includes the wiring connections between the engine harness and the main harness. |
| Main Harness | Includes the wiring connections between the main harness and the different interior and exterior harnesses. |
| Exterior Harness | Includes the wiring connections between the exterior harness and the different exterior components, such as the headlights, the turn signals, and the brake lights. |
| Interior Harness | Includes the wiring connections between the interior harness and the different interior components, such as the power windows, the audio system, and the climate control system. |
Conclusion
The 1998 Mitsubishi Eclipse wiring diagram is an important tool for anyone who wants to repair or modify the electrical system of their vehicle. It shows the different components of the electrical system, their connections, and the flow of current between them. By understanding the wiring diagram, you can troubleshoot any electrical problems that might arise and identify any upgrades or modifications that you can make to enhance the performance of your vehicle.
Remember, always use caution when working with electrical systems. Disconnect the battery before working on any electrical components and handle any wires with care to avoid injury or damage to the vehicle.
