Engine-CodesNissan – B1779 Nissan

B1779 Nissan Code - Hydraulic Pump Temperature Sensor

Quick Answer

The B1779 diagnostic trouble code for Nissan vehicles refers to an issue with the hydraulic pump temperature sensor. Common causes include Faulty hydraulic pump temperature sensor, Wiring issues or electrical faults, Hydraulic pump malfunction. 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
B1779 Nissan indicates Hydraulic Pump Temperature Sensor.
Common causes
Common causes include Faulty hydraulic pump temperature sensor, Wiring issues or electrical faults, Hydraulic pump malfunction.
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 19, 2024
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Code B1779 Nissan Description

The B1779 diagnostic trouble code for Nissan vehicles refers to an issue with the hydraulic pump temperature sensor. This sensor is responsible for monitoring the temperature of the hydraulic pump in the vehicle's braking system. The hydraulic pump is a crucial component of the anti-lock braking system (ABS) and plays a key role in ensuring the vehicle's brakes function properly.

OBDII Code B1779 Nissan - Hydraulic Pump Temperature Sensor
B1779 Nissan Code - Hydraulic Pump Temperature Sensor

Common Causes of B1779 Nissan

  1. Faulty hydraulic pump temperature sensor
  2. Wiring issues or electrical faults
  3. Hydraulic pump malfunction
  4. Low brake fluid levels
  5. Contaminated brake fluid

Symptoms of B1779 Nissan

  1. Illuminated ABS warning light on the dashboard
  2. Inconsistent or unresponsive braking performance
  3. Strange noises coming from the braking system
  4. ABS system engaging unexpectedly
  5. Increased stopping distance

How to Fix B1779 Nissan

  1. Begin by conducting a thorough inspection of the hydraulic pump temperature sensor and its wiring for any visible damage or corrosion.
  2. Test the sensor using a multimeter to check for proper resistance readings and ensure it is functioning correctly.
  3. If the sensor is found to be faulty, replace it with a new, OEM-quality sensor.
  4. Check the hydraulic pump for any signs of damage or malfunction and address any issues accordingly.
  5. Refill and bleed the brake system to ensure proper fluid levels and eliminate any air bubbles that may have formed.

Cost to Fix B1779 Nissan

The typical repair costs for addressing the B1779 code related to the hydraulic pump temperature sensor can vary depending on the specific vehicle make and model, as well as the extent of the issue. On average, the parts for this repair can range from $50 to $150, while labor costs can range from $100 to $200. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, shop rates, and additional repairs that may be needed. It's recommended to consult with a qualified mechanic or repair shop for a more accurate cost estimate.

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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 B1779 Nissan Code

1. What are the common symptoms of OBDII code B1779 in a Nissan related to the Hydraulic Pump Temperature Sensor?

The common symptoms include the illumination of the Check Engine Light, issues with the vehicle's braking system, and possible decrease in brake performance.

2. What are the possible causes of OBDII code B1779 in a Nissan indicating a problem with the Hydraulic Pump Temperature Sensor?

Possible causes include a faulty hydraulic pump temperature sensor, wiring issues, sensor connection problems, or a malfunction within the brake system.

3. How can I diagnose the OBDII code B1779 in a Nissan related to the Hydraulic Pump Temperature Sensor?

Diagnosis typically involves using a scan tool to retrieve the specific fault code, checking the sensor's wiring and connections for any issues, and testing the sensor itself for proper functionality.

4. Is it safe to continue driving my Nissan with OBDII code B1779 indicating a problem with the Hydraulic Pump Temperature Sensor?

It is not recommended to continue driving the vehicle with this code active, as it may lead to potential brake system malfunctions and compromise safety. It's best to address the issue promptly.

5. Can I repair OBDII code B1779 in a Nissan indicating an issue with the Hydraulic Pump Temperature Sensor on my own?

Depending on your mechanical skills, you may be able to replace the faulty sensor or address wiring/connection problems on your own. However, it's advisable to consult a professional mechanic for accurate diagnosis and repair.

6. Are there any specific repair tips for fixing OBDII code B1779 in a Nissan related to the Hydraulic Pump Temperature Sensor?

Ensure to use a genuine or high-quality replacement sensor, follow the manufacturer's guidelines for installation, and clear the fault code after completing the repair to reset the system.

7. How critical is the Hydraulic Pump Temperature Sensor in the overall functioning of the braking system in a Nissan?

The Hydraulic Pump Temperature Sensor is crucial for monitoring the temperature of the brake system, which helps ensure proper brake performance and safety. A malfunctioning sensor can potentially lead to brake issues.

8. What are the potential risks of ignoring OBDII code B1779 in a Nissan related to the Hydraulic Pump Temperature Sensor?

Ignoring this code can result in compromised brake performance, potential brake system failures, and safety risks while driving. It's essential to address the issue promptly.

9. Can weather conditions or driving habits affect the likelihood of encountering OBDII code B1779 in a Nissan due to the Hydraulic Pump Temperature Sensor?

Extreme weather conditions or aggressive driving habits can potentially impact the sensor's performance or trigger fault codes related to the hydraulic pump temperature sensor.

10. How can regular maintenance help prevent issues with the Hydraulic Pump Temperature Sensor triggering OBDII code B1779 in a Nissan?

Regular brake system inspections, proper fluid maintenance, and timely sensor checks can help prevent issues with the hydraulic pump temperature sensor, reducing the likelihood of encountering this fault code.

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