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Your Guide to the 1988-1994 Mercury Capri Brake Light Switch

Solve common brake light and cruise control problems by choosing the right replacement switch.

3 minutes to read 1988-1994 Mercury Capri
Difficulty
1/5
Est. Time
0.5 hrs
DIY Doable?
✅ Yes
Shop Labor
$50-$100
🚫 Do not drive — It is not safe to drive without functioning brake lights as other drivers will not know when you are stopping.
Key Takeaways
  • A bad brake light switch is a critical safety issue; replace it immediately if symptoms appear.
  • Verify if your Capri has cruise control before ordering, as the switches can be different.
  • This is a simple and inexpensive DIY repair for most owners, requiring no special tools.
  • Always check fuses and bulbs first before assuming the switch is the problem.
The brake light switch on your Mercury Capri is a simple but critical part. It's a small sensor located at the top of your brake pedal arm. When you press the brake pedal, the switch activates your brake lights. It also sends a signal to disengage your cruise control, if your car is equipped with it. A properly working switch is essential for safety and for passing state inspections.

Is Your Capri's Brake Light Switch Failing?

A faulty brake light switch can cause several noticeable problems. Because this part is crucial for letting other drivers know you're slowing down, you should address these symptoms immediately. Driving without working brake lights is a serious safety risk and can get you a ticket.

Key Symptoms of a Bad Switch:

  • Brake Lights Don't Work: The most obvious sign is when your brake lights don't turn on at all when you press the pedal. Before blaming the switch, it's a good idea to check the bulbs and the fuse first.
  • Brake Lights Stay On: If the switch gets stuck in the 'on' position, your brake lights will remain lit even when you're not braking. This can drain your battery and confuse other drivers.
  • Cruise Control Issues: For Capris with cruise control, a bad switch can prevent the system from engaging or, more dangerously, from disengaging when you hit the brakes.
  • Trouble Shifting from Park: On automatic models, the switch is part of the safety system that requires you to press the brake before shifting out of Park. If the switch fails, you might find your shifter is stuck.

Safety Recall Information

There was a widespread Ford recall in the 1990s and 2000s concerning a different switch, the Speed Control Deactivation Switch (SCDS), which was located on the brake master cylinder and could pose a fire risk. Documents show the 1994 Mercury Capri was included in this recall family. This is a separate part from the brake light switch located at the pedal, but it's important to be aware of for any cruise-control-equipped Capri.

Choosing the Right Aftermarket Brake Light Switch

For a vehicle like the 1988-1994 Mercury Capri, the original Ford (OEM) switch is often discontinued or hard to find. Luckily, the aftermarket provides good, reliable options. The key is choosing a brand known for quality electronics.

It's important to note that early Capris (around 1991) may not have come with cruise control, which can affect which switch you need. Always verify if your car has cruise control before ordering.

Aftermarket Brand Tiers

  • Standard Motor Products (Standard Ignition): Often considered a top-tier aftermarket brand, SMP is known for producing parts that meet or exceed original specifications. They are a reliable choice for electronic components like switches.
  • Rostra Powertrain: Rostra is a well-established manufacturer, particularly known for transmission components and electronic controls. Their parts are generally considered a solid, dependable option.
  • Facet: Facet is another brand that produces a wide range of automotive components. While some reviews place them as a standard or mid-tier option, they provide a cost-effective solution that gets the job done.

Pro Tip: When replacing the switch, it's a good time to also check your brake light bulbs. Replacing them at the same time is easy and ensures the whole system is fresh.

Typical Costs for a Brake Light Switch Replacement

Replacing the brake light switch is one of the more affordable repairs you can make. The part itself is inexpensive, and if you're comfortable working in the driver's footwell, you can save on labor costs.

Part Type Estimated Cost
New Aftermarket Switch $18.19 - $32.10
Shop Labor $50 - $100
Total DIY Cost $18.19 - $32.10
Total Professional Cost $68 - $132

Frequently Asked Questions

Where is the brake light switch located on my Capri?

The brake light switch is located in the driver's footwell, mounted on a bracket at the top of the brake pedal arm. You will need to look up under the dashboard to see it.

Can I replace this switch myself?

Yes, this is a very feasible DIY job for most owners. It usually involves disconnecting the electrical connector and then twisting or unclipping the switch from its bracket. The main challenge is the awkward position required to access it under the dash.

Do I need special tools to replace it?

No special tools are typically required. You may need a small flathead screwdriver to release a clip on the electrical connector, but the switch itself often comes off with a simple twist.

What is the most common mistake when ordering this part?

The most common mistake is ordering the wrong switch based on whether your Capri has cruise control. The switches for cars with and without cruise control can be different. Double-check your vehicle's features before buying.

Technical Specifications

OEM Part Numbers: E9ZZ-13480-A E8GY-13480-B

Located on brake pedal arm. Mechanical plunger design. Two main versions exist: one for vehicles with cruise control and one for vehicles without.

Wrenchy
Article researched & written by
Go-Parts' AI research assistant. Every article is backed by live web research, verified OEM data, and real technician knowledge — so you get accurate, up-to-date information you can trust.
Meet Wrenchy → Updated Apr 5, 2026

The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.

Year Coverage
This article covers the Brake Light Switch for:
  • Mercury Capri: 1988198919901991199219931994
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