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P1572 Infiniti Code - Brake Pedal Switch Circuit Malfunction

Quick Answer

The P1572 Infiniti code indicates a malfunction in the brake pedal switch circuit. Common causes include Faulty brake pedal switch, Damaged wiring or connectors in the circuit, Corrosion or rust in the brake pedal switch 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 Infiniti indicates Brake Pedal Switch Circuit Malfunction.
Common causes
Common causes include Faulty brake pedal switch, Damaged wiring or connectors in the circuit, Corrosion or rust in the brake pedal switch 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 09, 2024
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Code P1572 Infiniti Description

The P1572 Infiniti code indicates a malfunction in the brake pedal switch circuit. The brake pedal switch is a crucial component of the vehicle's braking system, as it sends a signal to the vehicle's engine control module (ECM) when the brake pedal is depressed. This signal is used to engage the brake lights and disengage cruise control, among other functions. When this circuit malfunctions, it can lead to various issues with the vehicle's braking system and overall performance.

OBDII Code P1572 Infiniti - Brake Pedal Switch Circuit Malfunction
P1572 Infiniti Code - Brake Pedal Switch Circuit Malfunction

Common Causes of P1572 Infiniti

  1. Faulty brake pedal switch
  2. Damaged wiring or connectors in the circuit
  3. Corrosion or rust in the brake pedal switch circuit
  4. ECM malfunction
  5. Brake fluid contamination affecting the circuit

Symptoms of P1572 Infiniti

  1. Brake lights not turning on when the brake pedal is depressed
  2. Cruise control not disengaging properly
  3. Difficulty shifting out of park
  4. Check Engine Light illuminated
  5. Vehicle stalling or hesitating when braking

How to Fix P1572 Infiniti

  1. Begin by diagnosing the issue using a diagnostic scanner to retrieve the specific fault code and pinpoint the exact cause of the malfunction.
  2. Inspect the brake pedal switch, wiring, and connectors for any visible signs of damage, corrosion, or loose connections. Replace or repair any faulty components as necessary.
  3. Test the brake pedal switch circuit using a multimeter to ensure proper function and connectivity.
  4. Clear the fault code from the ECM's memory and test drive the vehicle to verify that the issue has been resolved.
  5. If the problem persists, further diagnosis may be required to identify any underlying issues with the ECM or other related components.

Cost to Fix P1572 Infiniti

The typical repair costs for addressing a P1572 Infiniti code can vary depending on the extent of the issue and the specific components that need to be repaired or replaced. In general, the cost of parts for a brake pedal switch replacement can range from $50 to $150, while labor costs can range from $100 to $200. Overall, the total repair cost for this issue may fall within the range of $150 to $350, but it's important to note that prices can vary based on location, vehicle make and model, and other factors. It's recommended to consult with a trusted auto repair shop to get an accurate estimate for the repair.

When is the Code Detected?

When the vehicle speed is above 30 km/h (19 MPH), ON signals from the stop lamp switch and the Automatic Speed Control Device (ASCD) brake switch are sent to the The Engine Control Module (ECM) at the same time.

Need more information about the P1572 Infiniti code?

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Information for Specific Infiniti 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 P1572 Infiniti Code

1. What does the OBDII code P1572 mean for an Infiniti?

P1572 indicates a malfunction in the brake pedal switch circuit, which monitors the activation of the brake pedal.

2. What are the common symptoms of a P1572 code in an Infiniti?

Symptoms may include the brake lights not working, the cruise control failing to engage, or the vehicle not shifting out of park.

3. What causes the P1572 brake pedal switch circuit malfunction?

Common causes include a faulty brake pedal switch, damaged wiring or connectors, or an issue with the vehicle’s ECM.

4. Can I drive my Infiniti with a P1572 code?

While you can likely drive the car, it is not recommended due to potential safety risks such as brake light failure or transmission issues.

5. How can I fix the P1572 code in my Infiniti?

Repair options include replacing the brake pedal switch, repairing damaged wiring, or cleaning corroded electrical connectors in the brake switch circuit.

6. How do I diagnose a P1572 code on my Infiniti?

Start by inspecting the brake pedal switch, checking the wiring and connectors, and using a multimeter to test the circuit for continuity or voltage.

7. What tools are needed to fix a P1572 code?

You may need a multimeter, a diagnostic scanner, replacement brake pedal switch, and basic hand tools like screwdrivers and pliers.

8. Will a faulty brake pedal switch always trigger a P1572 code?

Not always. Other issues like damaged wiring or a malfunctioning ECM can also cause this code.

9. How much does it cost to repair a P1572 code on an Infiniti?

The cost varies but typically ranges from $50 to $200, depending on labor rates and whether the brake pedal switch or wiring needs replacement.

10. Can a P1572 code cause the ABS light to come on?

Yes, in some cases, a malfunction in the brake pedal switch circuit may trigger the ABS or other warning lights.

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