AutoCodes – Ford – P1572 1997 Ford F150

P1572 1997 Ford F150 Code - Brake Pedal Switch Circuit Malfunction

Quick Answer

Indicates that the brake input rationality test for Brake Pedal Position (BPP) and Brake Pressure Applied (BPA) switches has failed. Common causes include Faulty Brake Pedal Switch, Blown fuse, Brake Pedal Switch harness is open or shorted. 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, Blown fuse, Brake Pedal Switch harness is open or shorted.
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 Popularity 2,047

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 30, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1572 1997 Ford F150 Description

Indicates that the brake input rationality test for Brake Pedal Position (BPP) and Brake Pressure Applied (BPA) switches has failed. One or both inputs to the Powertrain Control Module (PCM) did not change state when it was expected to. On vehicles with stability assist. BPP is connected to the ABS module and the ABS generates a Driver Brake Application (DBA) signal, which is then sent to the PCM.

OBDII Code P1572 1997 Ford F150 - Brake Pedal Switch Circuit Malfunction - AutoCodes.com — P1572 1997 Ford F150 Code - Brake Pedal Switch Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P1572 1997 Ford F150?

Faulty Brake Pedal Switch
Blown fuse
Brake Pedal Switch harness is open or shorted
Brake Pedal Switch circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1572 1997 Ford F150?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1572 1997 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1572 1997 Ford F150 code?

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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.