1. Brake Booster Failure: The brake booster, which is powered by vacuum, assists in the amplification of the force applied to the brake pedal. If the brake booster fails or is not receiving sufficient vacuum, it can result in a hard brake pedal and reduced braking capability.
2. Master Cylinder Issue: The master cylinder is responsible for converting the mechanical force applied to the brake pedal into hydraulic pressure that is distributed to the wheels. If the master cylinder fails or develops internal leakage, it can compromise the entire braking system.
3. Faulty Brake Lines: Brake lines are the conduits that carry brake fluid from the master cylinder to the wheels. If a brake line ruptures or develops a leak, it can lead to a loss of hydraulic pressure and ineffective braking.
4. Electrical Fault: The electrical fault warning light on your dashboard may indicate an underlying issue with the electrical system that could be affecting the functionality of the brake system. This could be due to a faulty sensor, wiring problems, or other electrical components related to the braking system.
5. ABS (Anti-lock Braking System) Failure: If your vehicle is equipped with ABS, a malfunction in the system could cause the brakes to behave abnormally. ABS is designed to prevent wheel lockup during braking, but a failure can result in reduced braking effectiveness.
6. Vacuum Pump Issue: For vehicles with a vacuum-assisted brake system, a faulty vacuum pump may not provide enough vacuum to assist in brake booster function, resulting in a hard and unresponsive brake pedal.
To properly diagnose the cause of the brake failure, it is recommended to seek professional assistance from a qualified mechanic or automotive technician. They will be able to inspect the components of the braking system, identify the root cause of the issue, and perform the necessary repairs or replacements.