Engine-CodesLincoln – P1703 Lincoln

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

Quick Answer

The P1703 diagnostic trouble code for Lincoln vehicles indicates that the brake on/off switch is out of the self-test range. Common causes include Faulty brake on/off switch, Damaged wiring or connectors, Corrosion in the brake light circuit. 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 Lincoln indicates Brake On/Off Switch Out of Self-Test Range.
Common causes
Common causes include Faulty brake on/off switch, Damaged wiring or connectors, Corrosion in the brake light circuit.
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 09, 2024
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Code P1703 Lincoln Description

The P1703 diagnostic trouble code for Lincoln vehicles 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 problem with the brake on/off switch, which is responsible for detecting when the brake pedal is pressed or released. The brake on/off switch is a crucial component of the vehicle's braking system, as it sends signals to the computer to control various functions such as the brake lights, cruise control, and transmission shift interlock.

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

Common Causes of P1703 Lincoln

  1. Faulty brake on/off switch
  2. Damaged wiring or connectors
  3. Corrosion in the brake light circuit
  4. Poor electrical connections
  5. Issues with the vehicle's computer system

Symptoms of P1703 Lincoln

  1. Inoperable brake lights
  2. Cruise control not engaging or disengaging properly
  3. Transmission shift interlock issues
  4. Check Engine Light illuminated

How to Fix P1703 Lincoln

  1. Begin by diagnosing the issue using a diagnostic scan tool to confirm the P1703 code.
  2. Inspect the brake on/off switch, wiring, and connectors for any signs of damage or corrosion.
  3. Replace the faulty brake on/off switch if necessary, ensuring it is properly connected and calibrated.
  4. Clear the diagnostic trouble codes from the vehicle's computer system and test the brake lights, cruise control, and transmission shift interlock.
  5. Conduct a road test to verify that the issue has been resolved and that the brake on/off switch is functioning correctly.

Cost to Fix P1703 Lincoln

The typical repair costs for addressing a P1703 code on a Lincoln vehicle can vary depending on the specific model and year. In general, the cost of replacing a brake on/off switch ranges from $50 to $150, while labor costs can range from $80 to $150 per hour. Therefore, the total repair cost for this issue may be around $150 to $300, including parts and labor. It's important to note that these are rough estimates, and actual costs may differ based on various factors. It's recommended to consult with a certified mechanic or auto repair shop for a more accurate cost estimate.

Tech Notes for P1703 Lincoln

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.

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