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Engine-Codes – Generic – P1914

P1914 Code - Brake Servo Pressure Sensor Range/Performance Problem

Quick Answer

The P1914 code indicates a problem with the brake servo pressure sensor, specifically relating to its range or performance. Common causes include Faulty brake servo pressure sensor, Wiring or electrical connection issues, Vacuum leaks in the brake booster system. 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
P1914 indicates Brake Servo Pressure Sensor Range/Performance Problem.
Common causes
Common causes include Faulty brake servo pressure sensor, Wiring or electrical connection issues, Vacuum leaks in the brake booster system.
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 06, 2024
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Code P1914 Description

The P1914 code indicates a problem with the brake servo pressure sensor, specifically relating to its range or performance. The brake servo, also known as the brake booster, is a component that helps amplify the force applied to the brake pedal, making it easier to stop the vehicle. The pressure sensor is responsible for monitoring the pressure within the brake servo to ensure proper braking performance. When this sensor malfunctions or detects issues with its range or performance, it can lead to various problems with the vehicle's braking system.

OBDII Code P1914 - Brake Servo Pressure Sensor Range/Performance Problem
P1914 Code - Brake Servo Pressure Sensor Range/Performance Problem

Common Causes of P1914

  1. Faulty brake servo pressure sensor
  2. Wiring or electrical connection issues
  3. Vacuum leaks in the brake booster system
  4. Brake fluid leaks or low brake fluid levels
  5. Malfunctioning ABS system

Symptoms of P1914

  1. Illumination of the brake warning light on the dashboard
  2. Soft or spongy brake pedal feel
  3. Difficulty in applying brakes or increased pedal effort required
  4. Inconsistent braking performance or braking system failure
  5. ABS system malfunctions or errors

How to Fix P1914

  1. Begin by performing a visual inspection of the brake servo pressure sensor and its wiring connections to check for any visible damage or loose connections.
  2. Use a diagnostic scan tool to read and clear the trouble code, and monitor the sensor's readings to identify any irregularities.
  3. Test the brake servo pressure sensor using a multimeter to determine if it is functioning within the specified range.
  4. Inspect the brake booster system for vacuum leaks and address any leaks by replacing damaged hoses or seals.
  5. If necessary, replace the brake servo pressure sensor or any faulty components identified during the diagnostic process.

Cost to Fix P1914

The typical repair costs for addressing a brake servo pressure sensor range/performance problem can vary depending on the specific issue and the vehicle's make and model. On average, the cost of parts for this repair could range from $100 to $300, while labor costs may fall between $150 and $300. However, as mentioned earlier, labor rates at auto repair shops can vary based on location and other factors, so it's recommended to obtain quotes from local shops for a more accurate estimate.

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Code P1914 Information for Specific Makes

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 P1914 Code

1. What are the common symptoms of OBDII code P1914 (Brake Servo Pressure Sensor Range/Performance Problem)?

- Common symptoms include a soft or spongy brake pedal, reduced braking power, the vehicle requiring more effort to stop, and the illumination of the ABS or brake warning light on the dashboard.

2. What are the possible causes of OBDII code P1914?

- Causes of this code may include a faulty brake servo pressure sensor, issues with the brake booster or vacuum system, damaged wiring or connectors related to the sensor, or a problem with the brake control module.

3. How can I diagnose the source of OBDII code P1914?

- Diagnosis typically involves using a scan tool to retrieve the code and then performing a visual inspection of the brake servo pressure sensor, checking the wiring and connectors for damage, and testing the sensor's functionality using a multimeter.

4. What are the recommended repair tips for addressing OBDII code P1914?

- Repair tips may include replacing the faulty brake servo pressure sensor, repairing any damaged wiring or connectors, checking and possibly replacing the brake booster if necessary, and clearing the code to see if it returns after the repairs.

5. Can OBDII code P1914 cause safety concerns while driving?

- Yes, since this code is related to the brake servo pressure sensor, it can impact the braking performance of the vehicle, potentially leading to longer stopping distances or brake failure if not addressed promptly.

6. Is it safe to continue driving with OBDII code P1914 present?

- It is not recommended to continue driving with this code active, as it can compromise the effectiveness of the vehicle's braking system and pose a safety risk. It is best to address the issue as soon as possible.

7. How much does it typically cost to repair OBDII code P1914?

- The cost of repairing this code can vary depending on the underlying cause, the cost of parts, and labor rates. It is advisable to consult with a professional mechanic or service center for an accurate estimate.

8. Are there any preventive measures to avoid OBDII code P1914 in the future?

- Regular maintenance of the brake system, such as checking brake fluid levels, inspecting brake components for wear, and addressing any braking issues promptly, can help prevent the occurrence of OBDII code P1914.

9. Can a DIY enthusiast fix OBDII code P1914 at home?

- While some experienced DIY enthusiasts may be able to diagnose and repair issues related to this code, it is recommended to seek professional help, especially when dealing with the braking system, to ensure the safety and effectiveness of the repairs.

10. Will resetting the OBDII code P1914 resolve the underlying issue?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying problem causing OBDII code P1914. It is essential to diagnose the issue and address it properly to prevent it from reoccurring.

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