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P1703 Ford Code - Brake On/Off Switch Out of Self-Test Range

Quick Answer

The P1703 Ford diagnostic trouble code indicates that the brake on/off switch is out of the self-test range. Common causes include Faulty Brake Switch: The most common cause of this code is a malfunctioning brake on/off switch, Wiring Issues: Damaged or corroded wiring connected to the brake switch can also trigger this code, Faulty PCM: A problem with the powertrain control module (PCM) could cause the self-test range error. 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
P1703 Ford indicates Brake On/Off Switch Out of Self-Test Range.
Common causes
Common causes include Faulty Brake Switch: The most common cause of this code is a malfunctioning brake on/off switch, Wiring Issues: Damaged or corroded wiring connected to the brake switch can also trigger this code, Faulty PCM: A problem with the powertrain control module (PCM) could cause the self-test range error.
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 06, 2024
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Code P1703 Ford Description

The P1703 Ford diagnostic trouble code indicates that the brake on/off switch is out of the self-test range. This means that the vehicle's onboard computer has detected a discrepancy in the signal coming from the brake switch, which is used to determine whether the brakes are engaged or disengaged. This can potentially affect the vehicle's performance, safety systems, and transmission operation. If left unaddressed, it could lead to issues with shifting gears, cruise control malfunctions, and even affect the vehicle's ability to start.

OBDII Code P1703 Ford - Brake On/Off Switch Out of Self-Test Range
P1703 Ford Code - Brake On/Off Switch Out of Self-Test Range

Common Causes of P1703 Ford

  1. Faulty Brake Switch: The most common cause of this code is a malfunctioning brake on/off switch.
  2. Wiring Issues: Damaged or corroded wiring connected to the brake switch can also trigger this code.
  3. Faulty PCM: A problem with the powertrain control module (PCM) could cause the self-test range error.
  4. Poor Ground Connection: A weak or intermittent ground connection can interfere with the signal from the brake switch.

Symptoms of P1703 Ford

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Inability to Shift Gears: The vehicle may have difficulty shifting gears, or the transmission may not engage properly.
  3. Cruise Control Issues: If equipped, the cruise control may not work correctly or may disengage unexpectedly.
  4. Starting Problems: The vehicle may have difficulty starting, or the engine may not turn over.

How to Fix P1703 Ford

  1. Diagnosis: Start by using a diagnostic tool to confirm the P1703 code and pinpoint the exact cause of the issue.
  2. Brake Switch Replacement: If the brake switch is faulty, it will need to be replaced with a new one.
  3. Check Wiring: Inspect the wiring connected to the brake switch for any damage or corrosion, and repair or replace as needed.
  4. PCM Reset: In some cases, resetting the PCM can resolve the self-test range error.
  5. Clearing Codes: After completing the repair, clear the diagnostic trouble codes and test the vehicle to ensure the issue has been resolved.

Cost to Fix P1703 Ford

The cost of repairing a P1703 Ford code can vary depending on the cause of the issue and the labor rates in your area. In general, you can expect to pay anywhere from $100 to $300 for parts and labor. Keep in mind that additional diagnostic time may be needed to identify the root cause of the problem, so it's best to consult with a qualified mechanic for an accurate estimate. Labor rates can range from $80 to $150 per hour, but this can vary based on location and the specific repair facility.

What does this mean?

Tech Notes for P1703 Ford

Check for correct function of the stop lamps, if the stop lamps are not working change the brake switch.

Need more information about the P1703 Ford code?

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Information for Specific Ford Models

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 P1703 Ford Code

1. What are the common symptoms of OBDII code P1703 in a Ford vehicle?

- Common symptoms include issues with the brake lights not working properly, difficulty shifting gears, and the vehicle not starting.

2. What does the OBDII code P1703 Ford indicate?

- The code P1703 indicates that the Brake On/Off Switch is out of the self-test range, meaning there is an issue with the brake switch signal.

3. What are the possible causes of OBDII code P1703 in a Ford vehicle?

- Possible causes include a faulty brake on/off switch, wiring issues, a defective brake pedal position sensor, or a problem with the vehicle's PCM.

4. How can I diagnose the cause of OBDII code P1703 in my Ford vehicle?

- You can start by checking the brake lights to see if they are functioning properly, inspecting the brake switch and its wiring for any damage, and using a diagnostic scanner to read the code and investigate further if needed.

5. Can I still drive my Ford vehicle with the OBDII code P1703 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to safety issues due to potential brake light malfunctions and difficulty shifting gears.

6. How can I repair OBDII code P1703 in my Ford vehicle?

- Repairing this code typically involves replacing the faulty brake on/off switch, repairing any damaged wiring, or addressing any issues with the brake pedal position sensor. Consult a professional mechanic for proper diagnosis and repair.

7. Are there any DIY tips for troubleshooting OBDII code P1703 in a Ford vehicle?

- You can start by checking the brake switch and its wiring for any visible damage, ensuring the brake lights are working, and resetting the trouble code to see if it reoccurs.

8. Can a faulty brake on/off switch cause other issues in a Ford vehicle besides triggering OBDII code P1703?

- Yes, a faulty brake on/off switch can cause other issues such as intermittent brake light operation, cruise control malfunctions, and problems with the vehicle's transmission.

9. Is it possible to reset OBDII code P1703 in a Ford vehicle without fixing the underlying issue?

- While you can reset the code temporarily, it is not recommended as the issue will likely reoccur, potentially leading to safety hazards and further damage.

10. How much does it typically cost to repair OBDII code P1703 in a Ford vehicle?

- The cost of repair can vary depending on the cause of the issue, but it typically ranges from $100 to $300 for parts and labor.

Discuss the causes and fixes for P1703 Ford OBDII Code

Submit a New Comment

  • Add to possible symptoms: Cruise control not working.

    Reply to Comment

  • Thanks you!!

    Reply to Comment

  • Yes, that's a certainty if the problem is indeed in the switch and your brake lights are staying ON all the time. When you're driving your vehicle in cruise control, activating your brakes turns the Cruise control OFF. So if your brake pedal switch is out of adjustment or BAD it would cause the Cruise Control to Not Work.

    Reply to Comment