How to Fix the Mondeo's Brake Light Staying On?
2 Answers
The solutions for the Mondeo's brake light staying on are as follows: 1. Lack of Brake Fluid: It is an essential part of the car's braking system. When the driver steps on the brake pedal, the force applied is transmitted by the piston in the master cylinder through the brake fluid to the wheel cylinders at each wheel, causing the brake pads to contact the wheels and stop the vehicle. Add brake fluid. 2. Check if the Brake Switch Has Poor Contact or Failed to Reset After Loosening: Inspect the brake wiring for poor contact or short circuits, check the brake pedal pad, examine if the brake rubber ring is severely worn, and verify if the brake switch is damaged (the switch is located above the pedal). Replace the brake pedal pad or the brake switch as needed. 3. Severely Worn Brake Pads: The light may stay on if the brake pads are worn out. Replace the brake pads.
Yesterday, I helped a friend fix the issue of the Mondeo's brake lights staying on constantly. Based on my experience, the most common cause is a faulty brake light switch. It's that small switch behind the brake pedal that makes a clicking sound when you press the pedal. First, lie down under the driver's seat and manually press the switch repeatedly. If the brake lights don't respond or the switch doesn't spring back, it's likely broken. Replacing it yourself isn't too difficult—you can buy the correct model online for around 30 yuan, remove the cover, unplug the connector, and swap it out. However, be careful with Ford models as their switch clips have a unique orientation; forcing them can cause damage. If the lights turn on and off normally when you press the switch, the issue might be a short circuit in the wiring or a broken brake pedal spring, in which case it's best to consult a professional. Leaving the lights on continuously not only drains the battery but also increases the risk of rear-end collisions at night, so don't delay fixing it.
