why is my Ford Mustang S550 (2015-2023) brake light flashing

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a flat surface and engage the parking brake.
• Disconnect the negative battery terminal to ensure safety.

2. Check and Top Off Brake Fluid

• Remove the brake fluid reservoir cap.
• Inspect the fluid level; if low, top off with the manufacturer-recommended brake fluid (usually DOT 3 or DOT 4).
• Reinstall the cap securely.

3. Inspect Brake Components

• Lift the vehicle using a jack and secure it with jack stands.
• Remove the wheels to access the brake components.
• Check the brake pads for thickness (minimum 3mm recommended) and inspect rotors for scoring or warping.
• Replace any worn or damaged components as necessary.

4. Test Brake Light Switch

• Locate the brake light switch mounted on the brake pedal assembly.
• Disconnect the switch connector and test using a multimeter for continuity when the pedal is depressed.
• Replace the switch if it does not function correctly.

5. Inspect Wiring and ABS Module

• Visually inspect the wiring harness connected to the ABS module for fraying or damage.
• If necessary, test the ABS module with a scan tool for any faults or error codes.
• Repair or replace any damaged wiring, and reset the ABS module if codes were present.