B051B 2017 GMC Sierra Code - Right Side Assist Step Motor Control Circuit
Quick Answer
The B051B diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the right side assist step motor control circuit. Common causes include Wiring or connector damage in the right side assist step motor control circuit, Faulty right side assist step motor, Corrosion or poor connections in the electrical system related to the assist step. 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
- B051B 2017 GMC Sierra indicates Right Side Assist Step Motor Control Circuit.
- Common causes
- Common causes include Wiring or connector damage in the right side assist step motor control circuit, Faulty right side assist step motor, Corrosion or poor connections in the electrical system related to the assist step.
- 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 B051B 2017 GMC Sierra Description
The B051B diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the right side assist step motor control circuit. This code indicates that there is a malfunction in the circuit responsible for controlling the motor that operates the right side assist step on the vehicle. The assist step motor is a component that extends and retracts the step to assist passengers in entering and exiting the vehicle. When this circuit malfunctions, it can lead to issues with the operation of the assist step, potentially causing inconvenience and safety concerns for passengers.
Common Causes of B051B 2017 GMC Sierra
- Wiring or connector damage in the right side assist step motor control circuit.
- Faulty right side assist step motor.
- Corrosion or poor connections in the electrical system related to the assist step.
- Issues with the control module responsible for operating the assist step.
- Water damage or exposure to the elements affecting the components of the assist step motor control circuit.
Symptoms of B051B 2017 GMC Sierra
- Right side assist step fails to deploy or retract.
- Unusual noises coming from the right side assist step motor.
- Warning light on the dashboard indicating an issue with the assist step.
- Difficulty entering or exiting the vehicle due to a malfunctioning assist step.
How to Fix B051B 2017 GMC Sierra
- Begin by conducting a thorough inspection of the wiring, connectors, and components in the right side assist step motor control circuit to identify any visible damage or corrosion.
- Test the right side assist step motor to determine if it is functioning properly or if it needs to be replaced.
- Check the control module for any faults or malfunctions that may be causing the issue with the assist step motor control circuit.
- Repair or replace any damaged wiring, connectors, or components in the circuit as needed.
- Clear the DTC from the vehicle's system and test the right side assist step to ensure that it deploys and retracts correctly.
Cost to Fix B051B 2017 GMC Sierra
The cost of repairing the right side assist step motor control circuit can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the parts required for this repair, such as wiring, connectors, or a new assist step motor, can range from $100 to $500. Labor costs at an auto repair shop typically range from $80 to $150 per hour, and the total repair time for this issue may take 1-2 hours. Therefore, the total cost for repairing the right side assist step motor control circuit could be between $200 and $800, including parts and labor. It is advisable to consult with a professional mechanic or dealership to get an accurate estimate based on the specific circumstances of the vehicle.
Tech Notes for B051B 2017 GMC Sierra
B051B:01 Right Side Assist Step Motor Control Circuit Short to Battery
B051B:02 Right Side Assist Step Motor Control Circuit Short to Ground
B051B:04 Right Side Assist Step Motor Control Circuit Open Circuit
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Frequently Asked Questions about B051B 2017 GMC Sierra Code
1. What are the common symptoms of OBDII code B051B in a 2017 GMC Sierra related to the Right Side Assist Step Motor Control Circuit?
The common symptoms include the right side assist step not deploying or retracting properly, or the assist step getting stuck in one position.
2. What are the possible causes of the Right Side Assist Step Motor Control Circuit issue in a 2017 GMC Sierra?
Possible causes include a malfunctioning assist step motor, wiring issues, a faulty control module, or a blown fuse related to the assist step system.
3. How can I diagnose the OBDII code B051B in my 2017 GMC Sierra?
Diagnosis typically involves using a scan tool to read the trouble code, inspecting the wiring and connections of the assist step system, and testing the assist step motor and control module for proper operation.
4. Is it safe to drive my 2017 GMC Sierra with the B051B code related to the Right Side Assist Step Motor Control Circuit?
It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure the proper functioning of the assist step system.
5. Can I repair the Right Side Assist Step Motor Control Circuit issue in my 2017 GMC Sierra myself?
Depending on your level of automotive expertise, you may be able to repair the issue yourself by replacing the faulty motor, repairing wiring issues, or replacing the control module. However, professional diagnosis and repair are recommended for complex electrical issues.
6. How much does it typically cost to repair the B051B code in a 2017 GMC Sierra?
The cost of repair can vary depending on the specific cause of the issue. Replacing a malfunctioning motor or control module may cost a few hundred dollars, while addressing wiring issues could be less expensive.
7. Can a faulty battery or alternator cause the B051B code to appear in a 2017 GMC Sierra?
While a weak battery or alternator can potentially cause electrical issues, the B051B code specifically relates to the Right Side Assist Step Motor Control Circuit and is more likely due to issues within that system.
8. Will resetting the OBDII code B051B in my 2017 GMC Sierra make the problem go away permanently?
Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, the problem is likely to reoccur.
9. How can I prevent future occurrences of the B051B code in my 2017 GMC Sierra?
Regularly inspecting and maintaining the assist step system, ensuring proper wiring connections, and addressing any issues promptly can help prevent the reoccurrence of the B051B code.
10. Is the OBDII code B051B specific to GMC Sierra models, or can it occur in other vehicles?
The B051B code related to the Right Side Assist Step Motor Control Circuit is specific to GMC Sierra models with similar assist step systems. Other vehicles may have different codes for similar issues.
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