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B051A 2017 Chevrolet Silverado Code - Left Side Assist Step Motor Control Circuit

Quick Answer

The B051A diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado refers to a problem with the Left Side Assist Step Motor Control Circuit. Common causes include Faulty left side assist step motor, Wiring or connector issues in the assist step motor control circuit, Fuse related to the assist step motor control circuit blown. 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
B051A 2017 Chevrolet Silverado indicates Left Side Assist Step Motor Control Circuit.
Common causes
Common causes include Faulty left side assist step motor, Wiring or connector issues in the assist step motor control circuit, Fuse related to the assist step motor control circuit blown.
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 06, 2024
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Code B051A 2017 Chevrolet Silverado Description

The B051A diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado refers to a problem with the Left Side Assist Step Motor Control Circuit. This code indicates that there is an issue with the motor control circuit that operates the left-side assist step on the vehicle. The assist step motor control circuit is responsible for controlling the movement of the assist step, which helps passengers enter and exit the vehicle more easily. When this circuit malfunctions, it can lead to the assist step not operating correctly or not deploying at all.

OBDII Code B051A 2017 Chevrolet Silverado - Left Side Assist Step Motor Control Circuit
B051A 2017 Chevrolet Silverado Code - Left Side Assist Step Motor Control Circuit

Common Causes of B051A 2017 Chevrolet Silverado

  1. Faulty left side assist step motor.
  2. Wiring or connector issues in the assist step motor control circuit.
  3. Fuse related to the assist step motor control circuit blown.
  4. Water or moisture intrusion causing corrosion in the circuit components.

Symptoms of B051A 2017 Chevrolet Silverado

  1. Left side assist step not deploying when the door is opened.
  2. Unusual noises coming from the left side assist step motor.
  3. Left side assist step deploying intermittently or erratically.
  4. Dashboard warning light illuminated indicating a problem with the assist step system.

How to Fix B051A 2017 Chevrolet Silverado

  1. Begin by conducting a visual inspection of the wiring and connectors in the left side assist step motor control circuit.
  2. Test the left side assist step motor to determine if it is functioning properly.
  3. Check and replace any blown fuses related to the assist step motor control circuit.
  4. Address any water or moisture intrusion issues by drying out the affected areas and repairing any damaged components.
  5. Clear the DTC from the vehicle's computer system after completing the repair to reset the warning light.

Cost to Fix B051A 2017 Chevrolet Silverado

The typical repair costs for addressing a B051A code on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. On average, the repair costs for this type of problem can range from $150 to $400, including parts and labor. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary based on location and other factors. It's advisable to contact local auto repair shops for a more accurate cost estimate.

What does this mean?

Tech Notes for B051A 2017 Chevrolet Silverado

B051A:0B Left Side Assist Step Motor Control Circuit Current Above Threshold
B051A:01 Left Side Assist Step Motor Control Circuit Short to Battery
B051A:02 Left Side Assist Step Motor Control Circuit Short to Ground
B051A:04 Left Side Assist Step Motor Control Circuit Open Circuit

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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 B051A 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B051A in a 2017 Chevrolet Silverado?

- Common symptoms include malfunctioning or inoperative left side assist step, illuminated warning lights on the dashboard, and difficulty accessing the vehicle.

2. What does the OBDII code B051A for Left Side Assist Step Motor Control Circuit indicate?

- This code indicates a problem with the control circuit for the left side assist step motor in the Chevrolet Silverado.

3. What are some possible causes of OBDII code B051A in a 2017 Chevrolet Silverado?

- Potential causes include a faulty assist step motor, damaged wiring or connectors, a blown fuse, or a malfunctioning control module.

4. How can I diagnose the issue related to OBDII code B051A in my Chevrolet Silverado?

- Use a diagnostic scanner to retrieve the specific error code, inspect the wiring and connectors for damage, check the fuse related to the assist step motor, and test the motor itself for functionality.

5. What are some tips for repairing OBDII code B051A in a 2017 Chevrolet Silverado?

- Repair options may include replacing the left side assist step motor, repairing damaged wiring or connectors, replacing a blown fuse, or reprogramming the control module if needed.

6. Can I still drive my Chevrolet Silverado with OBDII code B051A present?

- It is not recommended to drive the vehicle with this code present, as it may affect the operation of the left side assist step and compromise safety.

7. How much does it typically cost to repair OBDII code B051A in a 2017 Chevrolet Silverado?

- The cost of repair can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Is it possible to reset or clear OBDII code B051A in a Chevrolet Silverado without repairing the issue?

- While you can clear the code temporarily with a diagnostic scanner, it will likely reappear until the underlying issue is resolved.

9. Can a DIY enthusiast with basic automotive knowledge fix OBDII code B051A in a 2017 Chevrolet Silverado?

- Depending on the root cause of the issue, some DIY repairs may be possible, such as checking and replacing fuses or repairing damaged wiring. However, more complex issues may require professional assistance.

10. How can I prevent OBDII code B051A from occurring in my Chevrolet Silverado in the future?

- Regularly inspect and maintain the left side assist step system, avoid physical damage to the step, and address any warning signs promptly to prevent this code from appearing.

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