P0703 2012 Ford Fusion Code - Brake Switch Performance
Quick Answer
The P0703 diagnostic trouble code (DTC) for a 2012 Ford Fusion relates to the Brake Switch Performance. Common causes include Faulty brake switch, Loose or damaged wiring connected to the brake switch, Corrosion or dirt buildup affecting the brake switch's performance. 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 switch, Loose or damaged wiring connected to the brake switch, Corrosion or dirt buildup affecting the brake switch's performance.
- 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 P0703 2012 Ford Fusion Description
The P0703 diagnostic trouble code (DTC) for a 2012 Ford Fusion relates to the Brake Switch Performance. This code indicates that there is a malfunction or performance issue with the brake switch in the vehicle. The brake switch is a crucial component of the vehicle's braking system as it is responsible for activating the brake lights when the brake pedal is pressed.
Common Causes of P0703 2012 Ford Fusion
- Faulty brake switch.
- Loose or damaged wiring connected to the brake switch.
- Corrosion or dirt buildup affecting the brake switch's performance.
- Issues with the brake pedal position sensor.
- Electronic control module (ECM) malfunction.
Symptoms of P0703 2012 Ford Fusion
- Brake lights not illuminating when the brake pedal is pressed.
- Cruise control not disengaging when the brake pedal is pressed.
- Difficulty shifting out of park.
- Check engine light illuminated on the dashboard.
How to Fix P0703 2012 Ford Fusion
- Begin by locating the brake switch, typically located near the brake pedal under the dashboard.
- Inspect the wiring connected to the brake switch for any signs of damage or looseness. Repair or replace as necessary.
- Test the brake switch using a multimeter to ensure it is functioning correctly. Replace the brake switch if it fails the test.
- Clear the DTC with an OBD-II scanner and test the vehicle to ensure the issue has been resolved.
- If the problem persists, consult a professional mechanic for further diagnosis and repair.
Cost to Fix P0703 2012 Ford Fusion
The typical repair costs for addressing a P0703 code on a 2012 Ford Fusion can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It is important to note that diagnostic time and labor rates can vary, so it is recommended to obtain quotes from local auto repair shops for a more accurate estimate.
Tech Notes for P0703 2012 Ford Fusion
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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.
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