Engine-CodesGeneric – B0957:3B

B0957:3B Code - Parking Assist Front Sensor Right Corner Circuit Self-Test Malfunction

Quick Answer

The B0957:3B diagnostic trouble code (DTC) specifically relates to a malfunction in the Parking Assist Front Sensor Right Corner Circuit Self-Test. Common causes include Faulty front right corner sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or debris affecting sensor functionality. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
B0957:3B indicates Parking Assist Front Sensor Right Corner Circuit Self-Test Malfunction.
Common causes
Common causes include Faulty front right corner sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or debris affecting sensor functionality.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Table of contents Created and updated by William Orellana on Sep 30, 2024
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Code B0957:3B Description

The B0957:3B diagnostic trouble code (DTC) specifically relates to a malfunction in the Parking Assist Front Sensor Right Corner Circuit Self-Test. This code indicates that there is an issue with the self-test function of the front right corner sensor in the vehicle's parking assist system. The parking assist system is designed to help drivers park their vehicles safely by providing alerts when objects are detected in close proximity to the vehicle. The front right corner sensor plays a crucial role in detecting obstacles on that side of the vehicle.

OBDII Code B0957:3B - Parking Assist Front Sensor Right Corner Circuit Self-Test Malfunction
B0957:3B Code - Parking Assist Front Sensor Right Corner Circuit Self-Test Malfunction

Common Causes of B0957:3B

  1. Faulty front right corner sensor.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Corrosion or debris affecting sensor functionality.
  4. Malfunctioning control module for the parking assist system.

Symptoms of B0957:3B

  1. Inaccurate or inconsistent parking assist alerts.
  2. No alerts from the front right corner sensor.
  3. Parking assist system not engaging when approaching obstacles.
  4. Warning light illuminated on the dashboard related to the parking assist system.

How to Fix B0957:3B

  1. Begin by conducting a thorough diagnostic scan to retrieve the specific DTC and identify the root cause of the issue.
  2. Inspect the front right corner sensor for any physical damage or signs of malfunction.
  3. Check the wiring and connectors associated with the sensor circuit for any breaks, corrosion, or loose connections.
  4. Test the control module to ensure it is functioning correctly and communicating with the sensor.
  5. Replace the faulty sensor, repair any damaged wiring or connectors, and reset the system to clear the DTC.

Cost to Fix B0957:3B

The typical repair costs for addressing a B0957:3B code can vary depending on the extent of the issue and the specific components that require replacement. In general, the cost of replacing a front right corner sensor and addressing any wiring or connector issues can range from $200 to $500, including parts and labor. However, it is important to note that diagnosis time and labor rates at auto repair shops can vary significantly based on location, vehicle make and model, and engine type. It is recommended to obtain quotes from local shops to get a more accurate estimate for this repair. Labor rates typically range between $80 and $150 per hour, with rates potentially higher at dealerships or in metropolitan areas, and lower at independent shops.

Tech Notes for B0957:3B

B0957:01 Parking Assist Front Sensor Right Corner Circuit Short to Battery

B0957:02 Parking Assist Front Sensor Right Corner Circuit Short to Ground

B0957:04 Parking Assist Front Sensor Right Corner Circuit Open

B0957:06 Parking Assist Front Sensor Right Corner Circuit Low Voltage/Open

B0957:08 Parking Assist Front Sensor Right Corner Circuit Performance - Signal Invalid

B0957:18 Parking Assist Front Sensor Right Corner Circuit Low Signal Amplitude

B0957:21 Parking Assist Front Sensor Right Corner Circuit Incorrect Period

B0957:22 Parking Assist Front Sensor Right Corner Circuit Too Short Low-Time

B0957:3A Parking Assist Front Sensor Right Corner Circuit Incorrect Component Installed

B0957:3B Parking Assist Front Sensor Right Corner Circuit Self-Test Malfunction

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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.

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