87 Mustang Wiring Diagram

By | August 15, 2023

87 Mustang Wiring Diagram: A Comprehensive Guide

The 1987 Mustang is a classic American muscle car that is still popular today. It's known for its powerful V8 engine, sleek design, and comfortable interior. If you own an 87 Mustang, or are thinking about buying one, it's important to have a good understanding of the wiring diagram. This will help you troubleshoot any problems that you may encounter, and it will also make it easier to perform maintenance and modifications. In this article, we will provide a comprehensive guide to the 87 Mustang wiring diagram. We will cover everything from the basic layout of the system to the specific functions of each wire. We will also provide tips on how to troubleshoot problems and how to make modifications to the system.

Basic Layout of the Wiring Diagram

The 87 Mustang wiring diagram is a complex system that consists of thousands of wires. However, it can be broken down into a few basic components. * The main power supply comes from the battery. This power is distributed to the rest of the system through the fuse box. * The ignition switch provides power to the starter motor and the fuel pump. * The ECM (Engine Control Module) controls the ignition system, fuel injection system, and other engine functions. * The BCM (Body Control Module) controls the lights, windows, locks, and other body functions. * The ABS (Anti-lock Braking System) module controls the anti-lock brakes. * The SRS (Supplemental Restraint System) module controls the airbags.

Specific Functions of Each Wire

The following is a list of the specific functions of each wire in the 87 Mustang wiring diagram. *

Battery positive (B+):

This wire provides power to the entire system. It is connected to the battery positive terminal and the fuse box. *

Battery negative (B-):

This wire provides a ground for the entire system. It is connected to the battery negative terminal and the chassis. *

Ignition switch (S):

This wire provides power to the starter motor and the fuel pump. It is connected to the ignition switch and the fuse box. *

ECM (Engine Control Module) power (E+):

This wire provides power to the ECM. It is connected to the ECM and the fuse box. *

ECM (Engine Control Module) ground (E-):

This wire provides a ground for the ECM. It is connected to the ECM and the chassis. *

ECM (Engine Control Module) data (A):

This wire transmits data from the ECM to other modules in the system. It is connected to the ECM and the other modules. *

BCM (Body Control Module) power (B+):

This wire provides power to the BCM. It is connected to the BCM and the fuse box. *

BCM (Body Control Module) ground (B-):

This wire provides a ground for the BCM. It is connected to the BCM and the chassis. *

BCM (Body Control Module) data (C):

This wire transmits data from the BCM to other modules in the system. It is connected to the BCM and the other modules. *

ABS (Anti-lock Braking System) module power (D+):

This wire provides power to the ABS module. It is connected to the ABS module and the fuse box. *

ABS (Anti-lock Braking System) module ground (D-):

This wire provides a ground for the ABS module. It is connected to the ABS module and the chassis. *

ABS (Anti-lock Braking System) module data (E):

This wire transmits data from the ABS module to other modules in the system. It is connected to the ABS module and the other modules. *

SRS (Supplemental Restraint System) module power (F+):

This wire provides power to the SRS module. It is connected to the SRS module and the fuse box. *

SRS (Supplemental Restraint System) module ground (F-):

This wire provides a ground for the SRS module. It is connected to the SRS module and the chassis. *

SRS (Supplemental Restraint System) module data (G):

This wire transmits data from the SRS module to other modules in the system. It is connected to the SRS module and the other modules.

Troubleshooting Problems with the Wiring Diagram

If you are having problems with your 87 Mustang, the wiring diagram can be a valuable tool for troubleshooting. Here are a few tips on how to use the wiring diagram to troubleshoot problems: *

Start by checking the fuses.

If a fuse is blown, it will prevent power from reaching the component that it is connected to. To check a fuse, use a multimeter to measure the resistance across the fuse. If the resistance is


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