AutoCodes – Ford – P0703 2012 Ford Fusion

P0703 2012 Ford Fusion Code - Brake Switch Performance

Quick Answer

The Brake Pedal Position (BPP) switch is sometimes referred to as the stop lamp switch. Common causes include Faulty Brake Pedal Position (BPP) Switch (Stop Lamp Switch), Misadjusted Brake Pedal Position Switch, Brake Pedal Position Switch harness is open or shorted. 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 2012 Ford Fusion indicates Brake Switch Performance.
Common causes: Common causes include Faulty Brake Pedal Position (BPP) Switch (Stop Lamp Switch), Misadjusted Brake Pedal Position Switch, Brake Pedal Position Switch harness is open or shorted.
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.

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Code Popularity 2,723

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 13, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0703 2012 Ford Fusion Description

The Brake Pedal Position (BPP) switch is sometimes referred to as the stop lamp switch. The BPP switch provides a signal to the Powertrain Control Module (PCM) indicating the brakes are applied. The BPP switch is normally open and mounted on the brake pedal support. The Powertrain Control Module monitors the BPP switch. The Diagnostic Trouble Code (DTC) will set when the Powertrain Control Module did not receive a BPP switch input.

OBDII Code P0703 2012 Ford Fusion - Brake Switch Performance - AutoCodes.com — P0703 2012 Ford Fusion Code - Brake Switch Performance

What does this mean?

What are the Possible Causes of the DTC P0703 2012 Ford Fusion?

Faulty Brake Pedal Position (BPP) Switch (Stop Lamp Switch)
Misadjusted Brake Pedal Position Switch
Brake Pedal Position Switch harness is open or shorted
Brake Pedal Position Switch circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0703 2012 Ford Fusion?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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).

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0703 2012 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 2012 Ford Fusion Code

1. What does the OBDII code P0703 mean on a 2012 Ford Fusion?

P0703 indicates an issue with the Brake Switch Performance, meaning the Powertrain Control Module (PCM) is detecting a fault in the brake switch circuit.

2. What are the symptoms of code P0703 in a 2012 Ford Fusion?

Common symptoms include the brake lights not working, the cruise control not disengaging, difficulty shifting out of park, or the Check Engine Light illuminating.

3. What causes the P0703 code to appear in a 2012 Ford Fusion?

The most common causes are a faulty brake switch, damaged or corroded wiring in the brake switch circuit, or a malfunctioning PCM.

4. Can a faulty brake switch cause transmission issues in a 2012 Ford Fusion?

Yes, a faulty brake switch can prevent the transmission from shifting out of park or cause erratic shifting behavior due to incorrect signal inputs to the PCM.

5. How do you diagnose the P0703 code on a 2012 Ford Fusion?

Diagnose by checking the brake lights, testing the brake switch with a multimeter, inspecting the wiring and connectors for damage, and using a scan tool to monitor brake switch inputs.

6. Can I drive my 2012 Ford Fusion with the P0703 code?

Driving is possible but not recommended, as issues with the brake switch can compromise safety features like brake lights and cruise control disengagement.

7. How do you fix the P0703 code on a 2012 Ford Fusion?

Repairs may involve replacing the brake switch, repairing damaged wiring, cleaning corroded connections, or, in rare cases, reprogramming or replacing the PCM.

8. How much does it cost to fix the P0703 code on a 2012 Ford Fusion?

The cost typically ranges from $50 to $200, depending on whether you replace the brake switch yourself or require professional diagnosis and repairs.

9. Can a bad brake light bulb trigger the P0703 code in a 2012 Ford Fusion?

No, a bad brake light bulb will not directly trigger this code, but it may indicate an issue in the brake light circuit that could be related to the brake switch.

10. Is the P0703 code a common issue in the 2012 Ford Fusion?

While not extremely common, it can occur due to wear and tear on the brake switch or wiring issues over time.