Engine-CodesFord – P1703 2002 Ford F150

P1703 2002 Ford F150 Code - Brake Switch Out of Self-Test Range

Quick Answer

The P1703 diagnostic trouble code (DTC) for a 2002 Ford F150 indicates that the brake switch is out of the self-test range. Common causes include Faulty brake switch, Wiring issues, Corrosion or damage to electrical connections. 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 2002 Ford F150 indicates Brake Switch Out of Self-Test Range.
Common causes
Common causes include Faulty brake switch, Wiring issues, Corrosion or damage to electrical connections.
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.
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P1703 2002 Ford F150 Description

The P1703 diagnostic trouble code (DTC) for a 2002 Ford F150 indicates that the brake switch is out of the self-test range. The brake switch is a crucial component of the vehicle's braking system, as it sends a signal to the vehicle's computer when the brake pedal is depressed. This signal is used to activate the brake lights and disengage cruise control, among other functions.

OBDII Code P1703 2002 Ford F150 - Brake Switch Out of Self-Test Range
P1703 2002 Ford F150 Code - Brake Switch Out of Self-Test Range

Common Causes of P1703 2002 Ford F150

  1. Faulty brake switch
  2. Wiring issues
  3. Corrosion or damage to electrical connections
  4. Faulty vehicle computer system
  5. Brake pedal misalignment

Symptoms of P1703 2002 Ford F150

  1. Brake lights not working properly
  2. Cruise control not disengaging when braking
  3. Transmission shifting irregularities
  4. Check Engine Light illuminated
  5. Vehicle may not start

How to Fix P1703 2002 Ford F150

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the trouble codes and pinpoint the problem.
  2. Inspect the brake switch for any signs of damage or malfunction. Replace the brake switch if necessary.
  3. Check the wiring and electrical connections related to the brake switch for any corrosion, damage, or loose connections. Repair or replace as needed.
  4. Clear the trouble codes from the vehicle's computer system using the diagnostic scanner.
  5. Test the vehicle to ensure that the issue has been resolved and that the brake switch is now within the self-test range.

Cost to Fix P1703 2002 Ford F150

The typical repair costs for addressing a P1703 code on a 2002 Ford F150 can vary depending on the specific cause of the issue. In general, the cost of replacing a brake switch can range from $50 to $150, while addressing wiring or electrical issues may add to the total cost. Labor costs can also vary, with rates typically ranging from $80 to $150 per hour. It is advisable to check with local auto repair shops for a more accurate estimate based on your location and vehicle specifics.

Tech Notes for P1703 2002 Ford F150

Check for correct function of the stop lamps, if the stop lamps are not working change the brake 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 P1703 2002 Ford F150 Code

What are the common symptoms of OBDII code P1703 on a 2002 Ford F150?

- Common symptoms include the brake lights staying on continuously, difficulty shifting gears, and the vehicle not starting.

What are the possible causes of OBDII code P1703 on a 2002 Ford F150?

- The most common cause is a faulty brake light switch, a misadjusted brake light switch, or a wiring issue related to the brake light circuit.

How can I diagnose the cause of OBDII code P1703 on my 2002 Ford F150?

- You can start by checking the brake light switch for proper operation, ensuring it is adjusted correctly, and inspecting the wiring for any damage or loose connections.

Is it safe to drive my 2002 Ford F150 with OBDII code P1703?

- It is not recommended to drive the vehicle with this code as it can affect the proper operation of the brake lights and transmission, potentially leading to unsafe driving conditions.

Can I repair OBDII code P1703 on my 2002 Ford F150 myself?

- If you have experience working on automotive electrical systems, you may be able to repair this code yourself by replacing the brake light switch, adjusting it properly, or repairing any damaged wiring.

Is resetting the OBDII code P1703 on my 2002 Ford F150 sufficient to fix the issue?

- Simply resetting the code may temporarily turn off the check engine light, but it will not fix the underlying issue causing the code to appear.

Will OBDII code P1703 on my 2002 Ford F150 cause any long-term damage if left unrepaired?

- Ignoring this code can lead to potential safety hazards due to malfunctioning brake lights and transmission issues, so it is best to address it promptly to prevent any further damage.

How much does it typically cost to repair OBDII code P1703 on a 2002 Ford F150?

- The cost of repairing this code can vary depending on the exact cause of the issue, but it may range from $50 to $200 for parts and labor.

Can a faulty brake light switch cause OBDII code P1703 on a 2002 Ford F150?

- Yes, a faulty or misadjusted brake light switch is a common cause of this code as it can affect the self-test range of the brake switch signal.

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