Engine-Codes.com
Engine-Codes – GMC – B051E 2017 GMC Sierra

B051E 2017 GMC Sierra Code - Assist Step Disable Switch Circuit

Quick Answer

The B051E diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to the Assist Step Disable Switch Circuit. Common causes include Faulty assist step disable switch, Wiring or connection issues in the circuit, Corrosion or damage to the electrical components. 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
B051E 2017 GMC Sierra indicates Assist Step Disable Switch Circuit.
Common causes
Common causes include Faulty assist step disable switch, Wiring or connection issues in the circuit, Corrosion or damage to the electrical components.
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 15, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B051E 2017 GMC Sierra Description

The B051E diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to the Assist Step Disable Switch Circuit. This code indicates that there is a malfunction in the circuit that controls the assist step disable switch. The assist step disable switch is a component that allows the driver to manually disable the power running boards or steps on the vehicle. When this circuit malfunctions, it can lead to issues with the proper functioning of the assist steps, potentially causing safety concerns and inconvenience for the driver and passengers.

OBDII Code B051E 2017 GMC Sierra - Assist Step Disable Switch Circuit
B051E 2017 GMC Sierra Code - Assist Step Disable Switch Circuit

Common Causes of B051E 2017 GMC Sierra

  1. Faulty assist step disable switch.
  2. Wiring or connection issues in the circuit.
  3. Corrosion or damage to the electrical components.
  4. Issues with the vehicle's computer system.
  5. Water damage or exposure to the elements affecting the circuit.

Symptoms of B051E 2017 GMC Sierra

  1. Power running boards not deploying or retracting.
  2. Inability to disable the assist steps manually.
  3. Warning light on the dashboard indicating an issue with the assist step system.
  4. Unusual noises coming from the assist steps when attempting to deploy or retract.

How to Fix B051E 2017 GMC Sierra

  1. Begin by inspecting the assist step disable switch and its wiring for any visible damage or corrosion.
  2. Use a multimeter to test the continuity of the circuit and check for any shorts or open circuits.
  3. Replace the assist step disable switch if it is found to be faulty.
  4. Repair or replace any damaged wiring or connectors in the circuit.
  5. Clear the DTC from the vehicle's computer system and test the assist steps to ensure proper functionality.

Cost to Fix B051E 2017 GMC Sierra

The typical repair costs for addressing the B051E code on a 2017 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. On average, the parts for this repair may cost between $50 and $150, while the labor costs can range from $100 to $300. Keep in mind that these are rough estimates, and actual costs may differ based on the extent of the damage and the rates charged by auto repair shops in your location. It is recommended to obtain quotes from multiple shops to compare prices and ensure a fair deal.

Need more information about the B051E 2017 GMC Sierra code?

Need more information on how to fix the B051E 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B051E 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 B051E 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code B051E on a 2017 GMC Sierra related to the Assist Step Disable Switch Circuit?

The common symptoms include inoperative or malfunctioning assist step disable switch, causing the power steps to not function properly.

2. What could be the possible causes of OBDII code B051E on a 2017 GMC Sierra?

Potential causes may include a faulty assist step disable switch, damaged wiring or connectors in the circuit, or a malfunction in the control module.

3. How can I diagnose the Assist Step Disable Switch Circuit issue triggering OBDII code B051E on my 2017 GMC Sierra?

You can start by visually inspecting the wiring and connectors for any visible damage. Using a multimeter, test the switch for continuity and check for any voltage irregularities in the circuit.

4. Is it safe to continue driving my 2017 GMC Sierra with the OBDII code B051E related to the Assist Step Disable Switch Circuit?

It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure proper functioning of the assist steps.

5. Can I reset the OBDII code B051E on my 2017 GMC Sierra without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it is crucial to address the root cause of the problem to prevent the code from reappearing.

6. Are there any simple repair tips for fixing OBDII code B051E on a 2017 GMC Sierra myself?

If you have experience with automotive electrical systems, you can start by checking and cleaning the connectors, ensuring proper grounding, and replacing the faulty switch if needed.

7. Do I need specialized tools to repair the Assist Step Disable Switch Circuit issue causing OBDII code B051E on my 2017 GMC Sierra?

Basic tools like a multimeter, wire strippers, and electrical tape may be sufficient for diagnosing and repairing the circuit issue, but specialized tools may be required for more complex repairs.

8. How much does it typically cost to repair OBDII code B051E related to the Assist Step Disable Switch Circuit on a 2017 GMC Sierra at a professional mechanic or dealership?

The cost of repair can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor at a professional repair shop.

9. Can extreme weather conditions affect the operation of the Assist Step Disable Switch Circuit and trigger OBDII code B051E on a 2017 GMC Sierra?

Yes, extreme temperatures or moisture exposure can potentially impact the circuit's performance, leading to malfunctions and triggering the OBDII code.

10. Will fixing OBDII code B051E on my 2017 GMC Sierra improve the overall functionality and safety of the vehicle's assist step system?

Yes, addressing the Assist Step Disable Switch Circuit issue will restore proper operation of the assist steps, enhancing both the functionality and safety of your GMC Sierra.

Discuss the causes and fixes for B051E 2017 GMC Sierra OBDII Code

Submit a New Comment

Code B051E 2017 GMC Sierra comments

No comments found for this page.