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Engine-Codes – GMC – B051D 2017 GMC Sierra

B051D 2017 GMC Sierra Code - Right Side Assist Step Position Sensor Circuit

Quick Answer

The B051D diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Right Side Assist Step Position Sensor Circuit. Common causes include Faulty assist step position sensor, Wiring or connection issues in the sensor circuit, Corrosion or damage to sensor components. 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
B051D 2017 GMC Sierra indicates Right Side Assist Step Position Sensor Circuit.
Common causes
Common causes include Faulty assist step position sensor, Wiring or connection issues in the sensor circuit, Corrosion or damage to sensor components.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code B051D 2017 GMC Sierra Description

The B051D diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Right Side Assist Step Position Sensor Circuit. This code indicates that there is a malfunction or issue with the sensor responsible for detecting the position of the right side assist step on the vehicle. The assist step position sensor is a crucial component that helps in deploying and retracting the step when needed, providing convenience and safety for passengers entering and exiting the vehicle.

OBDII Code B051D 2017 GMC Sierra - Right Side Assist Step Position Sensor Circuit
B051D 2017 GMC Sierra Code - Right Side Assist Step Position Sensor Circuit

Common Causes of B051D 2017 GMC Sierra

  1. Faulty assist step position sensor
  2. Wiring or connection issues in the sensor circuit
  3. Corrosion or damage to sensor components
  4. Electronic control unit (ECU) malfunction
  5. Physical damage to the assist step mechanism

Symptoms of B051D 2017 GMC Sierra

  1. Inoperative right side assist step
  2. Stuck or jammed assist step
  3. Dashboard warning light related to the assist step
  4. Unusual noises coming from the assist step mechanism
  5. Difficulty deploying or retracting the assist step

How to Fix B051D 2017 GMC Sierra

  1. Diagnose the issue by using a scan tool to retrieve the DTC and inspecting the assist step position sensor and related components.
  2. Test the sensor's functionality by checking for proper voltage and resistance readings.
  3. Replace the faulty assist step position sensor if it is determined to be the cause of the issue.
  4. Repair any damaged wiring or connections in the sensor circuit.
  5. Clear the DTC from the vehicle's ECU and test the assist step to ensure proper operation.

Cost to Fix B051D 2017 GMC Sierra

The typical repair costs for addressing the B051D code on a 2017 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. Generally, replacing the assist step position sensor and addressing any related wiring or connection issues can range from $200 to $500, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to obtain quotes from multiple sources to get a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

What does this mean?

Tech Notes for B051D 2017 GMC Sierra

B051D:01 Right Side Assist Step Position Sensor Circuit Short to Battery

B051D:02 Right Side Assist Step Position Sensor Circuit Short to Ground

B051D:22 Right Side Assist Step Position Sensor Circuit Low Time < Minimum

B051D:29 Right Side Assist Step Position Sensor Circuit Too Few Pulses

B051D:2A Right Side Assist Step Position Sensor Circuit Too Many Pulses

B051D:62 Right Side Assist Step Position Sensor Circuit Actuator Stuck Open

B051D:63 Right Side Assist Step Position Sensor Circuit Actuator Stuck Closed

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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 B051D 2017 GMC Sierra Code

1. What are common symptoms of OBDII code B051D in a 2017 GMC Sierra related to the Right Side Assist Step Position Sensor Circuit?

- Common symptoms include malfunctioning or inoperative right side assist step, warning lights on the dashboard, and potential issues with the step deployment.

2. What could be the possible causes of OBDII code B051D in a 2017 GMC Sierra?

- The code B051D may be triggered by a faulty right side assist step position sensor, damaged wiring or connectors, or issues with the control module.

3. How can I diagnose the OBDII code B051D in a 2017 GMC Sierra?

- Diagnosis involves using a professional OBDII scanner to retrieve the specific fault code, inspecting the wiring and connectors related to the position sensor, and testing the sensor itself for proper functioning.

4. Can I still drive my 2017 GMC Sierra with OBDII code B051D active?

- It is not recommended to drive the vehicle with an active B051D code, as it may indicate a safety issue with the right side assist step system, potentially leading to unexpected deployment or failure to deploy.

5. Is it possible to reset the OBDII code B051D in a 2017 GMC Sierra without repairing the issue?

- While you can clear the code temporarily using an OBDII scanner, it will likely reappear if the underlying issue with the right side assist step position sensor circuit is not addressed.

6. How can I repair OBDII code B051D in my 2017 GMC Sierra related to the Right Side Assist Step Position Sensor Circuit?

- Repair typically involves replacing the faulty right side assist step position sensor, repairing any damaged wiring or connectors, and ensuring proper calibration of the system.

7. Are there any DIY tips for troubleshooting OBDII code B051D in a 2017 GMC Sierra?

- DIY tips include visually inspecting the wiring and connectors for any visible damage, ensuring proper connection of the sensor, and checking for any loose or corroded connections.

8. Can weather conditions affect the triggering of OBDII code B051D in a 2017 GMC Sierra?

- Extreme weather conditions like heavy rain or snow may potentially affect the operation of the right side assist step system, leading to the triggering of code B051D.

9. How long does it typically take to repair OBDII code B051D in a 2017 GMC Sierra at a professional auto repair shop?

- The repair time for OBDII code B051D can vary depending on the extent of the issue, but it may take a few hours to half a day for diagnosis and repair by a professional technician.

10. Is it necessary to recalibrate the right side assist step system after repairing OBDII code B051D in a 2017 GMC Sierra?

- Yes, recalibration of the right side assist step system is usually necessary after repairing the B051D code to ensure proper functioning and alignment of the position sensor.

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