Engine-CodesGMC – B0957 2014 GMC Sierra

B0957 2014 GMC Sierra Code - Parking Assist Front Sensor Right Corner Circuit

Quick Answer

The B0957 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Parking Assist Front Sensor Right Corner Circuit. Common causes include Faulty front right corner parking sensor, Wiring harness issues such as shorts, open circuits, or damaged wires, Corrosion or poor connections in the sensor circuit. 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 2014 GMC Sierra indicates Parking Assist Front Sensor Right Corner Circuit.
Common causes
Common causes include Faulty front right corner parking sensor, Wiring harness issues such as shorts, open circuits, or damaged wires, Corrosion or poor connections in the sensor circuit.
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 14, 2024
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Code B0957 2014 GMC Sierra Description

The B0957 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Parking Assist Front Sensor Right Corner Circuit. This code indicates that there is a malfunction in the circuit responsible for the front right corner parking sensor. The parking assist system in modern vehicles uses sensors located around the vehicle to detect obstacles and aid the driver in parking maneuvers. When this specific sensor circuit fails, it can lead to inaccurate or non-functional readings, potentially affecting the vehicle's ability to detect obstacles in the front right corner while parking.

OBDII Code B0957 2014 GMC Sierra - Parking Assist Front Sensor Right Corner Circuit
B0957 2014 GMC Sierra Code - Parking Assist Front Sensor Right Corner Circuit

Common Causes of B0957 2014 GMC Sierra

  1. Faulty front right corner parking sensor.
  2. Wiring harness issues such as shorts, open circuits, or damaged wires.
  3. Corrosion or poor connections in the sensor circuit.
  4. Defective control module responsible for processing sensor data.
  5. Physical damage to the sensor due to impacts or debris.

Symptoms of B0957 2014 GMC Sierra

  1. Parking assist system warning light illuminated on the dashboard.
  2. Inaccurate or erratic readings from the front right corner parking sensor.
  3. Audible warning alerts from the parking assist system when there are no obstacles present.
  4. Complete failure of the parking assist system to function.

How to Fix B0957 2014 GMC Sierra

  1. Begin by visually inspecting the front right corner parking sensor and its wiring for any visible damage or corrosion.
  2. Use a multimeter to test the continuity of the sensor circuit and check for any shorts or open circuits.
  3. If the sensor or wiring is found to be faulty, replace the front right corner parking sensor or repair the damaged wiring as needed.
  4. Clear the DTC from the vehicle's computer using a diagnostic scan tool to reset the system and ensure proper functionality.
  5. Test the parking assist system to verify that the issue has been resolved and that the front right corner sensor is providing accurate readings.

Cost to Fix B0957 2014 GMC Sierra

The cost of repairing a Parking Assist Front Sensor Right Corner Circuit issue can vary depending on the specific cause of the problem and the parts and labor required for the repair. Generally, replacing a faulty sensor or repairing wiring issues can range from $150 to $400, including parts and labor. However, it's essential to note that diagnostic time and labor rates at auto repair shops can fluctuate based on factors such as location, vehicle make and model, and engine type. It's recommended to consult with a professional mechanic or service center to obtain a more precise estimate based on your specific circumstances.

Tech Notes for B0957 2014 GMC Sierra

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.

Frequently Asked Questions about B0957 2014 GMC Sierra Code

What does the OBDII code B0957 indicate for a 2014 GMC Sierra?

B0957 indicates a problem with the front parking assist sensor located at the right corner of the vehicle, specifically an issue with the circuit associated with that sensor.

What are common symptoms of the B0957 code?

Common symptoms include a malfunctioning front parking assist system, warnings on the dashboard, or audible alerts that do not function correctly when approaching obstacles.

What could cause the B0957 code to trigger?

Possible causes include a faulty front parking assist sensor, damaged wiring or connectors in the sensor circuit, or issues with the vehicle's parking assist control module.

How can I diagnose the issue related to the B0957 code?

Begin by inspecting the wiring and connectors for damage or corrosion. Then, test the front parking assist sensor for proper operation using a multimeter or a scan tool to check for signal output.

Can I drive my 2014 GMC Sierra safely with the B0957 code?

While you can drive the vehicle, the parking assist feature may not function properly, increasing the risk of collisions when parking. It’s advisable to have the issue inspected and repaired.

What are some repair tips for fixing the B0957 code?

Check and repair any damaged wiring or connectors first. If those are in good condition, consider replacing the faulty parking assist sensor. Always clear the trouble code after repairs to test if the issue is resolved.

Is it necessary to reset the code after repairs for B0957?

Yes, after completing repairs, you should clear the code using an OBDII scanner to reset the system and confirm that the issue has been resolved.

Can a bad parking assist control module cause the B0957 code?

Yes, a malfunctioning parking assist control module can lead to the B0957 code if it fails to communicate correctly with the front parking assist sensor.

How much might it cost to repair the B0957 code issue?

Repair costs can vary widely depending on the cause, with sensor replacement generally costing between $100 to $300, while wiring repairs might be less or more, depending on the extent of the damage.

Discuss the causes and fixes for B0957 2014 GMC Sierra OBDII Code

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