AutoCodes – Generic – B270C

B270C Code - Front Sonar Sensor Left Inner

Quick Answer

With power and ground supplied to the sonar sensors, the sonar sensors transmit an ultrasonic signal. Common causes include Faulty Front Sonar Sensor Left Inner, Front Sonar Sensor Left Inner harness is open or shorted, Front Sonar Sensor Left Inner 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: B270C indicates Front Sonar Sensor Left Inner.
Common causes: Common causes include Faulty Front Sonar Sensor Left Inner, Front Sonar Sensor Left Inner harness is open or shorted, Front Sonar Sensor Left Inner 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 1,374

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 B270C 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 Front Sonar Sensor Left Inner is out of factory specifications.

OBDII Code B270C - Front Sonar Sensor Left Inner - AutoCodes.com — B270C Code - Front Sonar Sensor Left Inner

What does this mean?

What are the Possible Causes of the DTC B270C?

Faulty Front Sonar Sensor Left Inner
Front Sonar Sensor Left Inner harness is open or shorted
Front Sonar Sensor Left Inner circuit poor electrical connection
Faulty Sonar Control Unit

How to Fix the DTC B270C?

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 B270C 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 B270C code?

Need more information on how to fix the B270C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B270C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B270C Infiniti — Front Sonar Sensor Left Inner
B270C Nissan — Front Sonar Sensor Left Inner

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 B270C Code

1. What are the common symptoms of OBDII code B270C (Front Sonar Sensor Left Inner)?

- Common symptoms include a malfunctioning or non-responsive front sonar sensor on the left side of the vehicle.

2. What are the possible causes of OBDII code B270C?

- The code B270C can be triggered by a faulty front sonar sensor, damaged wiring, or a problem with the sensor's connection.

3. How can I diagnose the issue related to OBDII code B270C?

- To diagnose the issue, you can visually inspect the front sonar sensor and its wiring for any visible damage. You can also use an OBDII scanner to retrieve the specific error code and further troubleshoot the problem.

4. Can I repair OBDII code B270C on my own?

- If you have automotive repair experience and the necessary tools, you may be able to replace the front sonar sensor or repair the wiring yourself. Otherwise, it's recommended to seek professional help.

5. Are there any specific repair tips for addressing OBDII code B270C?

- When replacing the front sonar sensor, make sure to follow the manufacturer's instructions carefully and calibrate the new sensor as needed for proper functionality.

6. How important is it to address OBDII code B270C promptly?

- It is important to address the issue promptly as a malfunctioning front sonar sensor can impact the vehicle's safety features and overall performance.

7. Can OBDII code B270C cause other problems in the vehicle?

- While the main issue related to code B270C is the malfunctioning front sonar sensor, ignoring the problem could potentially lead to inaccuracies in the vehicle's safety systems.

8. How much does it typically cost to repair OBDII code B270C?

- The cost of repairing OBDII code B270C can vary depending on the extent of the damage and whether you choose to do the repair yourself or seek professional help. It's recommended to obtain quotes from repair shops for an accurate estimate.

9. Is it safe to continue driving with OBDII code B270C present?

- It is not recommended to continue driving with OBDII code B270C present, as it can affect the proper functioning of safety features like parking assist systems.

10. Can extreme weather conditions affect the front sonar sensor and trigger OBDII code B270C?

- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially damage the front sonar sensor or its wiring, leading to the triggering of code B270C.