AutoCodes – Chevrolet – B051B 2015 Chevrolet Silverado

B051B 2015 Chevrolet Silverado Code - Right Side Assist Step Motor Control 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 Right Side Assist Step Motor, Right Side Assist Step Motor harness is open or shorted, Right 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: B051B 2015 Chevrolet Silverado indicates Right Side Assist Step Motor Control Circuit.
Common causes: Common causes include Faulty Right Side Assist Step Motor, Right Side Assist Step Motor harness is open or shorted, Right 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 288

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 13, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B051B 2015 Chevrolet Silverado 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 potentiometer. The module supplies a low reference and 10-volt reference source voltage to the potentiometer. The ASC control module monitors the voltage drop across the potentiometer on the position signal circuit. When the actuator shaft rotates, the voltage on the position signal circuit changes. The ASC control module supplies the actuator motor with a 12-volt control circuit and a ground control circuit. The ASC module controls the direction of the actuator by changing the polarity of the control circuits.

OBDII Code B051B 2015 Chevrolet Silverado - Right Side Assist Step Motor Control Circuit - AutoCodes.com — B051B 2015 Chevrolet Silverado Code - Right Side Assist Step Motor Control Circuit

What does this mean?

What are the Possible Causes of the DTC B051B 2015 Chevrolet Silverado?

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

How to Fix the DTC B051B 2015 Chevrolet Silverado?

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 does this mean?

Code Tech Notes

B051B:0B Right Side Assist Step Motor Control Circuit Current Above Threshold
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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B051B 2015 Chevrolet Silverado 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 B051B 2015 Chevrolet Silverado code?

Need more information on how to fix the B051B 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the 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 B051B 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B051B in a 2015 Chevrolet Silverado?

The common symptoms of OBDII code B051B in a 2015 Chevrolet Silverado include malfunctioning right side assist step motor, failure of the retractable step to deploy or retract properly, and illuminated warning lights on the dashboard.

2. What causes the OBDII code B051B in a 2015 Chevrolet Silverado?

The OBDII code B051B in a 2015 Chevrolet Silverado is typically caused by a malfunction in the right side assist step motor control circuit, which can be due to wiring issues, damaged components, or a faulty motor.

3. How can I diagnose the OBDII code B051B in my 2015 Chevrolet Silverado?

Diagnosing the OBDII code B051B in a 2015 Chevrolet Silverado involves using a diagnostic scanner to retrieve the trouble codes, inspecting the wiring and connectors for damage, testing the assist step motor, and checking for any other related issues.

4. Can I still drive my 2015 Chevrolet Silverado with OBDII code B051B?

It is not recommended to drive your 2015 Chevrolet Silverado with the OBDII code B051B, as the malfunctioning right side assist step motor may pose a safety risk and affect the overall performance of the vehicle.

5. How can I repair the OBDII code B051B in my 2015 Chevrolet Silverado?

Repairing the OBDII code B051B in a 2015 Chevrolet Silverado involves fixing the underlying issue causing the malfunction in the right side assist step motor control circuit, which may include repairing or replacing damaged wiring, connectors, or the motor itself.

6. Can I reset the OBDII code B051B in my 2015 Chevrolet Silverado without repairing the issue?

While you can clear the trouble codes to turn off the warning lights temporarily, the OBDII code B051B will likely reappear if the underlying issue causing the malfunction in the right side assist step motor control circuit is not repaired.

7. Is the repair for OBDII code B051B in a 2015 Chevrolet Silverado covered under warranty?

Depending on the warranty status of your 2015 Chevrolet Silverado, the repair for OBDII code B051B may be covered if the vehicle is still under warranty. Check with your dealership or manufacturer for more information.

8. Are there any recalls related to OBDII code B051B in a 2015 Chevrolet Silverado?

It is advisable to check with the manufacturer or the National Highway Traffic Safety Administration (NHTSA) for any recalls related to the OBDII code B051B in a 2015 Chevrolet Silverado to see if your vehicle is affected.

9. Can extreme weather conditions cause OBDII code B051B in a 2015 Chevrolet Silverado?

Extreme weather conditions can potentially affect the right side assist step motor control circuit in a 2015 Chevrolet Silverado, leading to issues that trigger the OBDII code B051B. It is important to keep the vehicle well maintained in all conditions.

10. How can I prevent OBDII code B051B from occurring in my 2015 Chevrolet Silverado?

To prevent the OBDII code B051B in a 2015 Chevrolet Silverado, it is essential to regularly inspect and maintain the right side assist step motor control circuit, address any wiring or component issues promptly, and follow the manufacturer's recommended maintenance schedule.