AutoCodes – GMC – B052B 2017 GMC Sierra

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

Quick Answer

The Assist Step Control (ASC) Module controls the running board actuators to extend or retract the running boards. Common causes include Faulty Left Side Assist Step Motor, Left Side Assist Step Motor harness is open or shorted, Left Side Assist Step Motor circuit poor electrical connection. 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: B052B 2017 GMC Sierra indicates Assist Step Position Sensor Supply Circuit.
Common causes: Common causes include Faulty Left Side Assist Step Motor, Left Side Assist Step Motor harness is open or shorted, Left Side Assist Step Motor circuit poor electrical connection.
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.

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Code Popularity 239

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 18, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B052B 2017 GMC Sierra Description

The Assist Step Control (ASC) Module controls the running board actuators to extend or retract the running boards. Each actuator consists of an electric motor and a hall-effect switch. The module supplies a low reference and 10 V reference source voltage to the hall-effect switch. The assist step control module monitors the signal from the hall effect switch on the signal circuit. When the actuator shaft rotates, the hall-effect switch provides pulses to the assist step control module which uses the pulses as counts to determine the location of the assist steps. The assist step control module supplies the actuator motor with a 12 V control circuit and a ground control circuit. The assist step control module controls the direction of the actuator by changing the polarity of the control circuits.

OBDII Code B052B 2017 GMC Sierra - Assist Step Position Sensor Supply Circuit - AutoCodes.com — B052B 2017 GMC Sierra Code - Assist Step Position Sensor Supply Circuit

What does this mean?

What are the Possible Causes of the DTC B052B 2017 GMC Sierra?

Faulty Left Side Assist Step Motor
Left Side Assist Step Motor harness is open or shorted
Left Side Assist Step Motor circuit poor electrical connection
Faulty Assist Step Control (ASC) Module

How to Fix the DTC B052B 2017 GMC Sierra?

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 B052B 2017 GMC Sierra 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 B052B 2017 GMC Sierra code?

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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.