AutoCodes – Nissan – B2720 Nissan

B2720 Nissan Code - Rear Sonar Sensor Left Outer

Quick Answer

With power and ground supplied to the sonar sensors, the sonar sensors transmit an ultrasonic signal. Common causes include Faulty Rear Sonar Sensor Left Outer, Rear Sonar Sensor Left Outer harness is open or shorted, Rear Sonar Sensor Left Outer circuit poor electrical connection. 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: B2720 Nissan indicates Rear Sonar Sensor Left Outer.
Common causes: Common causes include Faulty Rear Sonar Sensor Left Outer, Rear Sonar Sensor Left Outer harness is open or shorted, Rear Sonar Sensor Left Outer circuit poor electrical connection.
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.

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Code Popularity 20,225

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2720 Nissan Description

With power and ground supplied to the sonar sensors, the sonar sensors transmit an ultrasonic signal. This signal is reflected back to the sensor by objects large enough and close enough to be detected. The sonar sensors measure the time from the transmitted signal to the time the signal is reflected back and send this information to the Sonar Control Unit. The Sonar Control Unit sets the Diagnostic Trouble Code (DTC) when the Rear Sonar Sensor Left Outer is out of factory specifications.

OBDII Code B2720 Nissan - Rear Sonar Sensor Left Outer - AutoCodes.com — B2720 Nissan Code - Rear Sonar Sensor Left Outer

What does this mean?

What are the Possible Causes of the DTC B2720 Nissan?

Faulty Rear Sonar Sensor Left Outer
Rear Sonar Sensor Left Outer harness is open or shorted
Rear Sonar Sensor Left Outer circuit poor electrical connection
Faulty Sonar Control Unit

How to Fix the DTC B2720 Nissan?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2720 Nissan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B2720 Nissan code?

Need more information on how to fix the B2720 Nissan code? Get Access to Factory Service Manuals

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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 B2720 Nissan Code

1. What are the common symptoms of OBDII code B2720 for the Rear Sonar Sensor Left Outer in a Nissan?

- Common symptoms include a malfunctioning or inoperative left outer rear sonar sensor, leading to issues with the parking assist system.

2. What are the possible causes of the B2720 OBDII code in a Nissan related to the Rear Sonar Sensor Left Outer?

- The code can be triggered by a faulty left outer rear sonar sensor, damaged wiring or connectors, or issues with the parking assist control unit.

3. How can I diagnose the B2720 code for the Rear Sonar Sensor Left Outer in my Nissan?

- Diagnosis involves visually inspecting the sensor and wiring for any visible damage, testing the sensor's functionality, and using a scan tool to retrieve trouble codes.

4. What are some repair tips for fixing the B2720 OBDII code on the Rear Sonar Sensor Left Outer in a Nissan?

- Repair tips include replacing the faulty left outer rear sonar sensor, repairing any damaged wiring or connectors, and resetting the trouble codes with a scan tool after the repairs.

5. Can I drive my Nissan with the B2720 OBDII code for the Rear Sonar Sensor Left Outer?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure the proper functioning of the parking assist system.

6. How much does it typically cost to repair the B2720 code for the Rear Sonar Sensor Left Outer in a Nissan?

- The cost of repairs can vary depending on the extent of the issue, but it may involve replacing the sensor, which can range from $100 to $300, plus labor costs.

7. Is it possible to reset the B2720 OBDII code for the Rear Sonar Sensor Left Outer in a Nissan without repairs?

- While you can reset the code using a scan tool, it is important to address the underlying issue causing the code to prevent further problems with the parking assist system.

8. Will the B2720 OBDII code for the Rear Sonar Sensor Left Outer cause other systems in my Nissan to malfunction?

- The code is specific to the left outer rear sonar sensor and the parking assist system, so it should not directly affect other systems in the vehicle.

9. Can extreme weather conditions trigger the B2720 OBDII code for the Rear Sonar Sensor Left Outer in a Nissan?

- Extreme weather conditions could potentially affect the sensor's performance, leading to the triggering of the B2720 code. It's essential to ensure the sensor is functioning correctly.

10. How long does it typically take to repair the B2720 OBDII code for the Rear Sonar Sensor Left Outer in a Nissan?

- The repair time can vary based on the extent of the issue and the availability of parts, but it generally takes a few hours to replace the sensor and perform necessary repairs.