2003 Ford Expedition Brake Lights Not Working [Try This Proven Fixes]

Your 2003 Ford Expedition’s brake lights are an essential safety feature. When they’re not working, it can be dangerous and inconvenient. You may not be able to stop your vehicle quickly or warn other drivers that you’re slowing down.

In this guide, we’ll walk you through the steps to troubleshoot the problem of your 2003 Ford Expedition’s brake lights not working. We’ll start by identifying the most common causes of the problem, and then we’ll give you step-by-step instructions on how to fix each one.

We’ll also provide some tips on how to prevent this problem from happening in the future. So if your 2003 Ford Expedition’s brake lights aren’t working, read on for help!

Why 2003 Ford Expedition Brake Lights Not Working

Brake light fuse

The most common cause of brake lights not working is a blown fuse. Check the fuse box under the hood for a blown brake light fuse. If the fuse is blown, replace it with a new one.

Brake light switch

The brake light switch is a switch that is located on the brake pedal. When you press the brake pedal, the brake light switch closes and sends a signal to the brake lights to turn on. If the brake light switch is faulty, it may not be able to close properly and the brake lights will not turn on.

Brake light wiring

The brake lights are wired to the brake light switch. If the wiring is damaged, the brake lights may not be able to turn on. Check the wiring for any damage or corrosion.

Brake light bulbs

The brake lights are illuminated by bulbs. If the brake light bulbs are burned out, the brake lights will not turn on. Check the brake light bulbs and replace them if necessary.

2003 Ford Expedition Brake Lights Not Working

Your 2003 Ford Expedition’s brake lights are an important safety feature. They warn other drivers that you are braking, and they can help prevent accidents. If your brake lights are not working, it is important to have them repaired as soon as possible.

Troubleshooting

There are a few possible causes for your 2003 Ford Expedition’s brake lights not working. Here are some things to check:

Check the fuses:
The first thing you should do is check the fuses for your brake lights. The fuses are located in the fuse box under the hood. There should be a fuse labeled Brake Lights or Brakes. Remove the fuse and check it for a blown or damaged fuse. If the fuse is blown, replace it with a new fuse of the same amperage.

Check the bulbs:
The next thing you should check is the bulbs for your brake lights. The brake lights are located on the rear of the vehicle, one on each side. Remove the bulbs and inspect them for damage. If the bulbs are burned out, replace them with new bulbs.

Check the wiring:
If the fuses and bulbs are good, the next thing you should check is the wiring for your brake lights. The wiring for the brake lights runs from the brake pedal to the brake lights. Inspect the wiring for damage or corrosion. If you find any damage, repair or replace the wiring.

Check the brake switch:
The brake switch is a switch that tells the car’s computer that the brakes are applied. The brake switch is located on the brake pedal. Inspect the brake switch for damage or corrosion. If you find any damage, replace the brake switch.

Conclusion

If you have checked all of the above and your 2003 Ford Expedition’s brake lights are still not working, it is time to take your vehicle to a qualified mechanic. The mechanic will be able to diagnose the problem and repair it.

Also Read: 2003 Ford Expedition Cruise Control Not Working

FAQs: 2003 Ford Expedition Brake Lights Not Working

Why are my 2003 Ford Expedition brake lights not working?

There are a few possible reasons why your 2003 Ford Expedition brake lights may not be working. Here are some of the most common causes:

Burned-out bulbs: The most common cause of brake light failure is a burned-out bulb. To check if this is the case, simply open the trunk of your Expedition and look at the brake light housing. If one or more of the bulbs are burned out, you can replace them yourself using a replacement bulb kit.

Faulty wiring: The wiring for the brake lights can become damaged or corroded over time, which can cause the lights to stop working. If you suspect that the wiring is the problem, you should have a qualified mechanic inspect it.

Faulty brake switch: The brake switch is a small switch that tells the car’s computer when the brakes are applied. If the brake switch is faulty, it can prevent the brake lights from turning on. A qualified mechanic can test the brake switch and replace it if necessary.

Faulty brake light fuse: The brake light fuse is a small fuse that protects the brake light circuit from damage. If the fuse is blown, it will prevent the brake lights from turning on. You can check the fuse yourself using a fuse tester. If the fuse is blown, you can replace it with a new fuse.

How do I fix my 2003 Ford Expedition brake lights?

To fix your 2003 Ford Expedition brake lights, you will need to identify the cause of the problem and then take the necessary steps to fix it. Here are the steps involved in fixing each of the possible causes of brake light failure:

Burned-out bulbs: To replace a burned-out bulb, you will need to open the trunk of your Expedition and locate the brake light housing. The housing is usually located on the inside of the trunk lid. Once you have located the housing, remove the old bulb by twisting it counterclockwise. Then, insert the new bulb into the housing and twist it clockwise to lock it in place.

Faulty wiring: If the wiring for the brake lights is damaged or corroded, you will need to have a qualified mechanic repair or replace the wiring.

Faulty brake switch: If the brake switch is faulty, you will need to have a qualified mechanic replace it.

Faulty brake light fuse: If the brake light fuse is blown, you can replace it yourself using a fuse tester.

How much does it cost to fix 2003 Ford Expedition brake lights?

The cost of fixing your 2003 Ford Expedition brake lights will vary depending on the cause of the problem. If the problem is a burned-out bulb, the cost of replacing the bulb will be around $10. If the problem is faulty wiring, the cost of repairing or replacing the wiring will vary depending on the extent of the damage. If the problem is a faulty brake switch, the cost of replacing the switch will be around $50. If the problem is a blown fuse, the cost of replacing the fuse will be around $5.

How can I prevent my 2003 Ford Expedition brake lights from failing?

There are a few things you can do to help prevent your 2003 Ford Expedition brake lights from failing:

Inspect the brake lights regularly: Make a habit of inspecting the brake lights on your Expedition every time you wash the car. If you see a burned-out bulb, replace it immediately.

Avoid driving through puddles: Driving through puddles can cause water to seep into the brake light housing and damage the wiring. If you must drive through a puddle, try to avoid splashing water onto the brake light housing.

Park in a dry location: Parking your Expedition in a dry location can help prevent the brake light housing from getting wet and corroded.

Keep the brake light switch clean: The brake light switch is a small switch that tells the car’s computer when the brakes are applied. If the switch gets dirty, it can prevent the brake lights from turning on. To keep the switch clean, simply wipe it down with a dry cloth every few months.

What are the safety risks of driving with 2003 Ford Expedition brake lights that are not working?

Driving with brake lights that are not working is a safety hazard. If your brake lights are not working, other drivers may not be able to see you when you are