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P1572 1997 Ford F150 Code - Brake Pedal Switch Circuit Malfunction

Quick Answer

The P1572 diagnostic trouble code (DTC) specifically pertains to a Brake Pedal Switch Circuit Malfunction in a 1997 Ford F150. Common causes include Faulty brake pedal switch, Corroded or damaged wiring in the brake pedal switch circuit, Loose or poor connection in the 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
P1572 1997 Ford F150 indicates Brake Pedal Switch Circuit Malfunction.
Common causes
Common causes include Faulty brake pedal switch, Corroded or damaged wiring in the brake pedal switch circuit, Loose or poor connection in the 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P1572 1997 Ford F150 Description

The P1572 diagnostic trouble code (DTC) specifically pertains to a Brake Pedal Switch Circuit Malfunction in a 1997 Ford F150. This code indicates that there is an issue with the brake pedal switch circuit, which is a crucial component of the vehicle's braking system. The brake pedal switch is responsible for activating the brake lights when the brake pedal is pressed, as well as sending a signal to the vehicle's engine control module (ECM) to disengage cruise control.

OBDII Code P1572 1997 Ford F150 - Brake Pedal Switch Circuit Malfunction
P1572 1997 Ford F150 Code - Brake Pedal Switch Circuit Malfunction

Common Causes of P1572 1997 Ford F150

  1. Faulty brake pedal switch.
  2. Corroded or damaged wiring in the brake pedal switch circuit.
  3. Loose or poor connection in the circuit.
  4. ECM malfunction affecting the brake pedal switch signal.

Symptoms of P1572 1997 Ford F150

  1. Brake lights not illuminating when the brake pedal is pressed.
  2. Inability to disengage cruise control when the brake pedal is pressed.
  3. Illumination of the brake warning light on the dashboard.
  4. Erratic behavior of the vehicle's cruise control system.

How to Fix P1572 1997 Ford F150

  1. Begin by locating the brake pedal switch, typically located near the top of the brake pedal arm.
  2. Inspect the wiring harness connected to the brake pedal switch for any signs of damage or corrosion. Repair or replace as necessary.
  3. Test the brake pedal switch using a multimeter to ensure it is functioning properly. Replace the switch if it is faulty.
  4. Check the connection between the brake pedal switch and the ECM for any loose or damaged wires. Repair or replace as needed.
  5. Clear the DTC using an OBD-II scanner and test the vehicle to ensure the issue has been resolved.

Cost to Fix P1572 1997 Ford F150

The typical repair costs for addressing a Brake Pedal Switch Circuit Malfunction can vary depending on the specific cause of the issue. In general, replacing a faulty brake pedal switch can cost anywhere from $50 to $150, while repairing or replacing damaged wiring harnesses or connections may add to the total cost. Labor rates at auto repair shops can range from $80 to $150 per hour, so the total cost of the repair will depend on the amount of time required to diagnose and fix the issue. It's advisable to consult with a professional mechanic to get an accurate estimate based on the specific circumstances of the vehicle.

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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 P1572 1997 Ford F150 Code

1. What does the OBDII code P1572 indicate in a 1997 Ford F150?

The P1572 code indicates a malfunction in the brake pedal switch circuit, suggesting that the switch is not performing within the expected parameters set by the manufacturer.

2. What are the common symptoms of code P1572 in a 1997 Ford F150?

Symptoms can include the brake lights failing to turn on or off, issues with shifting out of park, or changes in the behavior of the cruise control system.

3. What causes the P1572 code to appear on a 1997 Ford F150?

Common causes include a faulty brake pedal switch, damaged wiring or connectors in the brake light circuit, or a bad fuse.

4. How can I diagnose the P1572 code in my 1997 Ford F150?

Diagnosis should start with a visual inspection of the brake pedal switch and the surrounding wiring. Check for any obvious signs of damage or disconnections. Testing the switch with a multimeter can help verify its functionality.

5. What are the steps to fix the P1572 code on a 1997 Ford F150?

To fix the P1572 code, replace the faulty brake pedal switch, repair any damaged wires or connectors, and ensure all related fuses are intact and functioning properly.

6. Is it safe to drive my 1997 Ford F150 with the P1572 code?

While you might be able to drive, it is not recommended as the malfunctioning brake light switch can affect brake light functionality and safety features like cruise control, which could pose safety risks.

7. How urgent is it to address the P1572 code in a 1997 Ford F150?

It is fairly urgent to address this issue due to the involvement of the brake system's electrical components, which are crucial for safe driving.

8. Could the P1572 code affect the battery or electrical system of my 1997 Ford F150?

Indirectly, yes. If the brake lights are stuck on due to a faulty switch, it could drain the battery.

9. What tools are required to diagnose and fix the P1572 code?

Common tools include a multimeter for electrical testing, basic hand tools for accessing and replacing the switch, and possibly a diagnostic scanner to read and clear the code after repairs.

10. After repairing the brake pedal switch, how do I clear the P1572 code from my 1997 Ford F150?

After the repair, you can clear the code using an OBDII scanner. Alternatively, disconnecting the battery for a few minutes might reset the system, but this could affect other settings in the vehicle.

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