How to Troubleshoot a 1999 Ford Mustang ABS with the Light on

An ABS warning light on your 1999 Ford Mustang can indicate a number of problems. Before taking the car in for service, an owner can do some troubleshooting of his own, by checking fluid levels and inspecting the system wiring. However, it is highly recommended that after troubleshooting the system with these steps the vehicle be taken to an authorized dealer to correctly diagnose the problem. Because the braking system is a primary safety component of the vehicle, needed repairs should be done by a qualified mechanic.

Instructions

1

Check the brake control module electrical connection and ensure it is tightly connected. The module is located in the right front corner of the engine bay.

2

Inspect the brake fluid reservoir and add brake fluid if the level is low.

3

Pull all of the brake fuses and make sure they are operational.

4

Locate the hydraulic control unit for the brake system and ensure the electrical connections are fastened securely. The unit is located in the lower right front corner of the engine compartment.

5

Check the ABS wheel sensors at each wheel and make sure the wiring to each sensor is functional.

6

Examine the wiring running from each sensor on the wheel to the engine bay and make sure there are no cuts in the wiring.