Fixing the P1564 Code in Nissan: Common Problems and Solutions

When your Nissan vehicle displays the P1564 code, it is essential to understand its meaning and take necessary action promptly. This code indicates a problem with the brake booster pressure sensor or related components. Ignoring the P1564 code can lead to compromised vehicle performance and safety concerns. In this article, we will delve into the details of the P1564 code, explore the potential problems causing it, and provide step-by-step solutions to resolve the issue.

Understanding the P1564 Code and its Significance

The P1564 code refers to “Brake Booster Pressure Sensor Circuit High. This code indicates an abnormal voltage reading from the brake booster pressure sensor or its circuit In Nissan vehicles. The brake booster pressure sensor is responsible for monitoring the vacuum pressure within the brake booster system. When the sensor detects a high voltage reading, it triggers the P1564 code in order to alert you to a potential issue.

The brake booster is a critical component of the braking system. It helps in the efficient application of brakes. A malfunctioning brake booster pressure sensor can impact brake performance, resulting in reduced braking effectiveness and potential safety hazards. Therefore, it is crucial to diagnose and address the P1564 code on time.

Possible Problems Causing the P1564 Code:

  1. Faulty brake booster pressure sensor: A defective or malfunctioning sensor can trigger the P1564 code. Over time, these sensors can wear out, leading to inaccurate voltage readings and code activation.
  2. Wiring issues or loose connections: Damaged wiring or loose connections in the brake booster pressure sensor circuit can cause erratic voltage readings, resulting in the P1564 code.
  3. Brake vacuum leak: A leak in the brake vacuum system can disrupt the vacuum pressure, leading to abnormal readings by the brake booster pressure sensor and code activation.
  4. Malfunctioning brake pedal position switch: The brake pedal position switch signals the brake booster pressure sensor, and if it malfunctions, it can produce incorrect voltage readings and trigger the P1564 code.
Fixing the P1564 Code in Nissan Common Problems and Solutions
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Solutions for Fixing the P1564 Code:

To resolve the P1564 code in your Nissan vehicle, consider the following solutions:

Inspect and replace the brake booster pressure sensor if faulty:

  • Gather necessary tools and safety equipment.
  • Locate the brake booster pressure sensor.
  • Remove the sensor and inspect for any visible damage.

Install a new brake booster pressure sensor compatible with your Nissan model.

  • Check and repair any damaged or loose wiring connections:
  • Ensure the vehicle’s ignition is turned off.
  • Conduct a thorough inspection of the wiring harness connected to the brake booster pressure sensor.
  • Identify any damaged wires or loose connections.
  • Repair or replace the affected wiring.

Repair or replace a leaking brake vacuum:

  • Locate the brake vacuum components (e.g., vacuum hoses, check valves).
  • Inspect for any visible signs of leakage, such as cracks or worn-out hoses.
  • Repair or replace the leaking components to restore the vacuum integrity.

Test and replace the malfunctioning brake pedal position switch:

  • Locate the brake pedal position switch, typically mounted near the brake pedal assembly.
  • Test the switch using a multimeter to ensure it is functioning correctly.
  • If the switch fails the test, replace it with a new one.

What is the Cost to Diagnose the Code P1564 Nissan?

The cost to diagnose the P1564 code in a Nissan vehicle varies depending on factors such as location, technician expertise, and diagnostic procedures. Dealerships and certified repair shops typically charge an hourly labor rate, ranging from $80 to $150. Independent mechanics may offer a flat-rate fee of $50 to $100. Some auto parts stores offer free code scanning, but it provides a general indication and not a comprehensive diagnosis. It’s recommended to obtain multiple quotes and compare prices before proceeding with the diagnostic service.

What are Code P1564 Nissan Possible Symptoms?

The P1564 code in Nissan vehicles may cause the following symptoms:

  1. Illuminated Check Engine Light (CEL) or Malfunction Indicator Lamp (MIL).
  2. Abnormal brake pedal response or inconsistent feel.
  3. Increased effort is required to depress the brake pedal.
  4. Reduced braking performance.
  5. Impaired vehicle stability and control during braking.

It’s important to get a proper diagnosis to accurately identify the cause of these symptoms and address the specific issue related to the P1564 code.


In conclusion, addressing the P1564 code in your Nissan vehicle is crucial for maintaining optimal performance and safety. By understanding the potential problems causing the code and implementing the recommended solutions, you can successfully resolve the issue. Remember to prioritize regular maintenance and seek professional assistance if needed. By taking the necessary steps, you can restore the functionality of the brake booster pressure sensor and ensure a smooth and safe driving experience in your Nissan vehicle. Drive safely and enjoy the road!