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P0703 2010 Ford Fusion Code - Brake Switch Performance

Quick Answer

The P0703 code for a 2010 Ford Fusion relates to the Brake Switch Performance. Common causes include Faulty brake switch, Wiring issues or electrical connection problems, Malfunctioning brake pedal position sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0703 2010 Ford Fusion indicates Brake Switch Performance.
Common causes
Common causes include Faulty brake switch, Wiring issues or electrical connection problems, Malfunctioning brake pedal position sensor.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0703 2010 Ford Fusion Description

The P0703 code for a 2010 Ford Fusion relates to the Brake Switch Performance. The brake switch, also known as the brake light switch, is a crucial component in the vehicle's braking system. This switch is responsible for detecting when the brake pedal is pressed, which then triggers the brake lights to turn on and signals the vehicle's computer system to deactivate the cruise control. When this switch fails to perform as expected, it can have significant implications on the vehicle's overall performance and safety.

OBDII Code P0703 2010 Ford Fusion - Brake Switch Performance
P0703 2010 Ford Fusion Code - Brake Switch Performance

Common Causes of P0703 2010 Ford Fusion

  1. Faulty brake switch.
  2. Wiring issues or electrical connection problems.
  3. Malfunctioning brake pedal position sensor.
  4. Issues with the vehicle's computer system.
  5. Environmental factors such as moisture or debris affecting the switch.

Symptoms of P0703 2010 Ford Fusion

  1. Brake lights not turning on when the brake pedal is pressed.
  2. Inability to disengage the cruise control.
  3. Difficulty starting the vehicle.
  4. Dashboard warning light illuminated.

How to Fix P0703 2010 Ford Fusion

  1. Begin by locating the brake switch, typically located near the top of the brake pedal assembly.
  2. Test the brake switch using a multimeter to determine if it is functioning properly.
  3. If the switch is found to be faulty, replace it with a new one following the manufacturer's guidelines.
  4. Check the wiring and connections for any signs of damage or corrosion, repairing or replacing as needed.
  5. Clear the diagnostic trouble codes and test the vehicle to ensure the issue has been resolved.

Cost to Fix P0703 2010 Ford Fusion

The cost of repairing a P0703 code on a 2010 Ford Fusion can vary depending on the specific cause of the issue. On average, the cost of replacing a brake switch can range from $50 to $150 for the part itself. Labor costs can add an additional $80 to $150 per hour, with the total repair cost likely falling between $150 and $300. It's important to note that prices may vary based on location, the mechanic's rates, and any additional parts or repairs that may be necessary. Be sure to consult with a qualified mechanic for a more accurate estimate based on your specific situation.

What does this mean?

Tech Notes for P0703 2010 Ford Fusion

Check if the stop light works with when the brake pedal is depressed if the brake lights are inoperative, replace or adjust the Brake Pedal Position (BPP) Switch (Stop Lamp Switch).

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0703 2010 Ford Fusion Code

1. What is OBDII code P0703 on a 2010 Ford Fusion?

Code P0703 on a 2010 Ford Fusion refers to "Brake Switch Performance," indicating a potential issue with the brake light switch's operation.

2. What are the common symptoms of OBDII code P0703 in a 2010 Ford Fusion?

Common symptoms of code P0703 in a 2010 Ford Fusion include brake lights staying on continuously, inability to shift out of Park, and the inability to engage cruise control.

3. What are the possible causes of OBDII code P0703 in a 2010 Ford Fusion?

Possible causes of code P0703 in a 2010 Ford Fusion include a faulty brake light switch, misadjusted brake light switch, wiring issues, or a defective brake light fuse.

4. How can I diagnose OBDII code P0703 in a 2010 Ford Fusion?

To diagnose code P0703 in a 2010 Ford Fusion, you can start by checking the brake light operation, inspecting the brake light switch for proper adjustment, and testing the brake light switch for continuity.

5. How do I repair OBDII code P0703 on a 2010 Ford Fusion?

To repair code P0703 on a 2010 Ford Fusion, you may need to replace the brake light switch if it's faulty, adjust the switch if misaligned, repair any wiring issues, or replace a blown brake light fuse.

6. Can I drive my 2010 Ford Fusion with OBDII code P0703?

It is not recommended to drive your 2010 Ford Fusion with OBDII code P0703, as it can affect the proper operation of critical safety features like brake lights and shifting out of Park.

7. Will OBDII code P0703 on a 2010 Ford Fusion cause the check engine light to come on?

Yes, OBDII code P0703 on a 2010 Ford Fusion can trigger the check engine light to illuminate, indicating a problem with the brake switch performance.

8. How much does it cost to fix OBDII code P0703 on a 2010 Ford Fusion?

The cost to fix OBDII code P0703 on a 2010 Ford Fusion can vary depending on the root cause of the issue, but it typically involves replacing the brake light switch or addressing wiring problems, which can range from $50 to $200 or more.

9. Can a DIY enthusiast fix OBDII code P0703 on a 2010 Ford Fusion?

Yes, a DIY enthusiast with the proper tools and some mechanical knowledge can often fix OBDII code P0703 on a 2010 Ford Fusion by following repair guides and procedures.

10. How long does it take to repair OBDII code P0703 on a 2010 Ford Fusion?

The time to repair OBDII code P0703 on a 2010 Ford Fusion can vary based on the specific cause of the issue and the individual's mechanical skill level, but it typically takes 30 minutes to a few hours to complete the repair.

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