AutoCodes – Generic – B2703

B2703 Code - Front Sonar Sensor Right Outer Harness

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 Right Outer, Front Sonar Sensor Right Outer harness is open or shorted, Front Sonar Sensor Right 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: B2703 indicates Front Sonar Sensor Right Outer Harness.
Common causes: Common causes include Faulty Front Sonar Sensor Right Outer, Front Sonar Sensor Right Outer harness is open or shorted, Front Sonar Sensor Right 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 1,980

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 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2703 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 Right Outer is out of factory specifications.

OBDII Code B2703 - Front Sonar Sensor Right Outer Harness - AutoCodes.com — B2703 Code - Front Sonar Sensor Right Outer Harness

What does this mean?

What are the Possible Causes of the DTC B2703?

Faulty Front Sonar Sensor Right Outer
Front Sonar Sensor Right Outer harness is open or shorted
Front Sonar Sensor Right Outer circuit poor electrical connection
Faulty Sonar Control Unit

How to Fix the DTC B2703?

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 B2703 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 B2703 code?

Need more information on how to fix the B2703 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2703 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2703 Infiniti — Front Sonar Sensor Right Outer Harness
B2703 Nissan — Front Sonar Sensor Right Outer Harness

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 B2703 Code

1. What are the common symptoms of OBDII code B2703 (Front Sonar Sensor Right Outer Harness)?

- The common symptoms include malfunctioning or erratic behavior of the front sonar sensor located on the right outer side of the vehicle.

2. What can cause OBDII code B2703 to trigger?

- The code B2703 is typically triggered by issues related to the wiring harness of the front sonar sensor on the right outer side of the vehicle.

3. How can I diagnose the Front Sonar Sensor Right Outer Harness issue?

- To diagnose the issue, you can visually inspect the wiring harness for any visible damage or wear. You can also use an OBDII scanner to read the fault codes and determine the exact nature of the problem.

4. What are the possible repair options for OBDII code B2703?

- Repair options may include repairing or replacing the damaged wiring harness of the front sonar sensor on the right outer side of the vehicle.

5. Can I repair the Front Sonar Sensor Right Outer Harness issue myself?

- Depending on your experience and skill level with automotive wiring, you may be able to repair the issue yourself. However, it is recommended to seek professional help if you are not confident in your abilities.

6. Are there any temporary fixes for OBDII code B2703?

- Temporary fixes such as resetting the fault code using an OBDII scanner may temporarily clear the error code, but the underlying issue with the front sonar sensor right outer harness will still need to be addressed.

7. Will driving with OBDII code B2703 pose any safety risks?

- Driving with this code may not pose an immediate safety risk, but it can affect the functionality of the front sonar sensor, which is designed to assist with parking and proximity alerts.

8. How much does it cost to repair OBDII code B2703?

- The cost of repairing OBDII code B2703 can vary depending on the extent of the damage and whether you choose to repair it yourself or take it to a professional mechanic.

9. Can OBDII code B2703 affect other vehicle systems?

- While the code is specific to the front sonar sensor right outer harness, electrical issues in one part of the vehicle can sometimes have cascading effects on other systems. It's best to address the issue promptly.

10. How often does the Front Sonar Sensor Right Outer Harness need to be replaced?

- The frequency of replacement depends on various factors such as driving conditions, vehicle age, and maintenance. If properly maintained, the front sonar sensor right outer harness should last for a long time before needing replacement.