Engine-CodesInfiniti – P1572 2005 Infiniti G35

P1572 2005 Infiniti G35 Code - Brake Pedal Switch Circuit Malfunction

Quick Answer

The P1572 code on a 2005 Infiniti G35 indicates a Brake Pedal Switch Circuit Malfunction. Common causes include Faulty brake pedal switch, Wiring issues in the brake pedal switch circuit, 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
P1572 2005 Infiniti G35 indicates Brake Pedal Switch Circuit Malfunction.
Common causes
Common causes include Faulty brake pedal switch, Wiring issues in the brake pedal switch circuit, 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 17, 2024
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Code P1572 2005 Infiniti G35 Description

The P1572 code on a 2005 Infiniti G35 indicates a Brake Pedal Switch Circuit Malfunction. This means that there is a problem with the electrical circuit that controls the brake pedal switch in the vehicle. The brake pedal switch is a crucial component that sends a signal to the vehicle's computer when the brake pedal is depressed, allowing the vehicle to engage the brakes properly. When this circuit malfunctions, it can lead to issues with the vehicle's braking system, affecting overall safety and performance.

OBDII Code P1572 2005 Infiniti G35 - Brake Pedal Switch Circuit Malfunction
P1572 2005 Infiniti G35 Code - Brake Pedal Switch Circuit Malfunction

Common Causes of P1572 2005 Infiniti G35

  1. Faulty brake pedal switch
  2. Wiring issues in the brake pedal switch circuit
  3. Corrosion or damage to electrical connections
  4. Problems with the vehicle's computer system
  5. Faulty brake light relay

Symptoms of P1572 2005 Infiniti G35

  1. Brake lights not working properly
  2. Inability to shift out of park
  3. Cruise control not engaging
  4. Decreased brake performance
  5. Illumination of the check engine light

How to Fix P1572 2005 Infiniti G35

  1. Begin by diagnosing the specific cause of the issue by checking the brake pedal switch, wiring, and electrical connections.
  2. Replace the faulty brake pedal switch if necessary.
  3. Repair any damaged wiring or connections in the circuit.
  4. Reset the vehicle's computer system to clear the error code and ensure proper communication with the brake pedal switch.
  5. Test the vehicle to confirm that the issue has been resolved and that the brake pedal switch is functioning correctly.

Cost to Fix P1572 2005 Infiniti G35

The typical repair costs for a Brake Pedal Switch Circuit Malfunction can range from $100 to $300, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's recommended to check local rates for a more accurate estimate.

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 Modulee (ECM) at the same time.

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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 2005 Infiniti G35 Code

What does the OBDII code P1572 indicate for a 2005 Infiniti G35?

The P1572 code indicates a malfunction in the brake pedal switch circuit, which can affect various systems, including the cruise control and stability control.

What are common symptoms associated with the P1572 code?

Common symptoms include the cruise control not functioning, the brake lights staying on, or the brake warning light illuminating on the dashboard.

What could cause the P1572 code to trigger?

Causes may include a faulty brake pedal switch, damaged wiring or connectors in the brake switch circuit, or issues with the vehicle's electronic control unit (ECU).

How can I diagnose the issue related to the P1572 code?

To diagnose the issue, check the brake pedal switch for proper operation, inspect the wiring and connectors for damage, and use a multimeter to test the circuit for continuity.

What repair steps can be taken to resolve the P1572 code?

Repair steps may include replacing the brake pedal switch, repairing any damaged wiring or connectors, or reprogramming the ECU if necessary.

Can I drive my 2005 Infiniti G35 with the P1572 code?

While it is possible to drive the vehicle, it is not recommended as it may affect safety features like cruise control and could lead to further electrical issues.

Will resetting the code clear the problem permanently?

Resetting the code may clear the warning light temporarily, but if the underlying issue is not fixed, the code will likely return.

How much does it typically cost to repair the P1572 code?

Repair costs can vary widely, but replacing the brake pedal switch generally ranges from $50 to $200, depending on labor and parts.

Is the P1572 code a serious issue that needs immediate attention?

Yes, the P1572 code indicates a malfunction that can affect critical vehicle functions, so it is advisable to address it as soon as possible for safe operation.

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