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Engine-Codes – GMC – B052B 2017 GMC Sierra

B052B 2017 GMC Sierra Code - Assist Step Position Sensor Supply Circuit

Quick Answer

The B052B diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically refers to the Assist Step Position Sensor Supply Circuit. Common causes include Damaged wiring in the assist step position sensor supply circuit, Loose or corroded connectors in the sensor circuit, Faulty assist step position sensor. 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
B052B 2017 GMC Sierra indicates Assist Step Position Sensor Supply Circuit.
Common causes
Common causes include Damaged wiring in the assist step position sensor supply circuit, Loose or corroded connectors in the sensor circuit, Faulty assist step position sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code B052B 2017 GMC Sierra Description

The B052B diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically refers to the Assist Step Position Sensor Supply Circuit. This code indicates that there is a malfunction in the circuit that supplies power to the assist step position sensor. The assist step position sensor is responsible for monitoring the position of the power deployable running boards or steps on the vehicle. These running boards automatically extend when the door is opened to assist with entering and exiting the vehicle, and the position sensor ensures they deploy and retract properly.

OBDII Code B052B 2017 GMC Sierra - Assist Step Position Sensor Supply Circuit
B052B 2017 GMC Sierra Code - Assist Step Position Sensor Supply Circuit

Common Causes of B052B 2017 GMC Sierra

  1. Damaged wiring in the assist step position sensor supply circuit.
  2. Loose or corroded connectors in the sensor circuit.
  3. Faulty assist step position sensor.
  4. Electrical issues in the running board system.
  5. Water or moisture damage to the sensor circuit components.

Symptoms of B052B 2017 GMC Sierra

  1. Power deployable running boards fail to extend or retract properly.
  2. Warning light on the dashboard indicating a problem with the running boards.
  3. Unusual noises coming from the running board system.
  4. Running boards deploy inconsistently when the door is opened.

How to Fix B052B 2017 GMC Sierra

  1. Begin by performing a visual inspection of the wiring and connectors in the assist step position sensor supply circuit. Look for any signs of damage, corrosion, or loose connections.
  2. Test the assist step position sensor using a multimeter to determine if it is functioning correctly. Replace the sensor if necessary.
  3. Check the electrical connections in the running board system to ensure they are secure and free of corrosion.
  4. Clear the DTC from the vehicle's computer system using a diagnostic scanner and test the running boards to verify proper operation.
  5. If the issue persists, consult a professional mechanic for further troubleshooting and repair.

Cost to Fix B052B 2017 GMC Sierra

The typical repair costs for addressing the B052B code on a 2017 GMC Sierra can vary depending on the extent of the issue and the specific repairs needed. In general, the cost of parts for replacing the assist step position sensor or repairing the wiring and connectors in the circuit can range from $100 to $300. Labor costs at an auto repair shop typically range from $80 to $150 per hour, and the total repair time may vary depending on the complexity of the issue. Therefore, the total cost of addressing this code could range from $200 to $500 or more, including parts and labor. It is advisable to obtain a detailed estimate from a trusted mechanic or dealership to get an accurate cost for the repair.

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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 B052B 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code B052B in a 2017 GMC Sierra related to the Assist Step Position Sensor Supply Circuit?

- Common symptoms include malfunctioning power retractable running boards, warning lights illuminated on the dashboard, and potential issues with the step deployment.

2. What are the possible causes of OBDII code B052B in a 2017 GMC Sierra?

- The code B052B may be triggered by faulty wiring connections, a defective assist step position sensor, or issues with the supply circuit itself.

3. How can I diagnose the Assist Step Position Sensor Supply Circuit issue in my 2017 GMC Sierra?

- Proper diagnosis involves using an OBDII scanner to retrieve the specific error code, visually inspecting the wiring and sensor connections, and testing the sensor's functionality.

4. Are there any potential safety concerns associated with a malfunctioning Assist Step Position Sensor in a GMC Sierra?

- Yes, a malfunctioning sensor can lead to unpredictable behavior of the power retractable running boards, posing a safety risk to passengers entering or exiting the vehicle.

5. Can I continue driving my 2017 GMC Sierra with OBDII code B052B without repairing the issue?

- It is not recommended to drive the vehicle with unresolved sensor supply circuit issues, as it can lead to further damage and potential safety hazards.

6. How can I repair OBDII code B052B related to the Assist Step Position Sensor Supply Circuit in my 2017 GMC Sierra?

- Repair steps may include fixing wiring connections, replacing the faulty assist step position sensor, or addressing issues with the supply circuit components.

7. Is it possible to reset the OBDII code B052B in a 2017 GMC Sierra after repairing the Assist Step Position Sensor Supply Circuit issue?

- Yes, after fixing the underlying problem, the code can be reset using an OBDII scanner to clear the error from the vehicle's system.

8. Are there any preventative maintenance tips to avoid encountering OBDII code B052B in the future?

- Regularly inspecting the wiring connections, keeping the assist step position sensor clean and free of debris, and addressing any issues promptly can help prevent the code from reoccurring.

9. Can a DIY enthusiast with basic automotive knowledge repair OBDII code B052B in a 2017 GMC Sierra?

- Depending on the specific issue, some DIY repairs may be possible, but it is recommended to consult a professional mechanic for accurate diagnosis and proper resolution of the problem.

10. How long does it typically take to repair OBDII code B052B related to the Assist Step Position Sensor Supply Circuit in a 2017 GMC Sierra?

- The repair time can vary based on the exact cause of the issue and the extent of the repair needed, but it may take anywhere from a few hours to a day at a professional repair shop.

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