AutoCodes – Chevrolet – B051B 2014 Chevrolet Silverado

B051B 2014 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 2014 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 259

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 2014 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 2014 Chevrolet Silverado - Right Side Assist Step Motor Control Circuit - AutoCodes.com — B051B 2014 Chevrolet Silverado Code - Right Side Assist Step Motor Control Circuit

What does this mean?

What are the Possible Causes of the DTC B051B 2014 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 2014 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 2014 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 2014 Chevrolet Silverado code?

Need more information on how to fix the B051B 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B051B in a 2014 Chevrolet Silverado?

The common symptoms of OBDII code B051B in a 2014 Chevrolet Silverado include a malfunctioning right side assist step, difficulty deploying or retracting the step, and an illuminated warning light on the dashboard.

2. What does the OBDII code B051B for Right Side Assist Step Motor Control Circuit indicate?

OBDII code B051B for Right Side Assist Step Motor Control Circuit indicates a fault with the control circuit of the right side assist step motor in a 2014 Chevrolet Silverado.

3. What are some possible causes of OBDII code B051B in a 2014 Chevrolet Silverado?

Possible causes of OBDII code B051B in a 2014 Chevrolet Silverado include a faulty assist step motor, damaged wiring or connectors in the control circuit, or a malfunctioning control module.

4. How can I diagnose the issue related to OBDII code B051B in my 2014 Chevrolet Silverado?

Diagnosing the issue related to OBDII code B051B in a 2014 Chevrolet Silverado involves inspecting the wiring and connectors associated with the right side assist step motor, testing the motor itself, and checking the control module for proper operation.

5. Can I still drive my 2014 Chevrolet Silverado with OBDII code B051B?

It is generally safe to drive your 2014 Chevrolet Silverado with OBDII code B051B, but it is recommended to have the issue diagnosed and repaired as soon as possible to ensure the proper functioning of the right side assist step.

6. How can I repair OBDII code B051B in my 2014 Chevrolet Silverado?

To repair OBDII code B051B in a 2014 Chevrolet Silverado, you may need to replace the right side assist step motor, repair any damaged wiring or connectors, or reprogram the control module as necessary.

7. Is it possible to reset OBDII code B051B in a 2014 Chevrolet Silverado without fixing the underlying issue?

While you can clear the code temporarily by resetting the OBDII system, the code is likely to reappear if the underlying issue causing it is not addressed.

8. How much does it typically cost to repair OBDII code B051B in a 2014 Chevrolet Silverado?

The cost to repair OBDII code B051B in a 2014 Chevrolet Silverado can vary depending on the specific cause of the issue, but it may range from a few hundred to a thousand dollars, including parts and labor.

9. Can a DIY enthusiast fix OBDII code B051B in a 2014 Chevrolet Silverado?

Depending on your level of experience and access to tools, a DIY enthusiast may be able to fix OBDII code B051B in a 2014 Chevrolet Silverado by following repair guides and procedures, but professional help is recommended for complex issues.

10. How can I prevent OBDII code B051B from occurring in my 2014 Chevrolet Silverado in the future?

To prevent OBDII code B051B from occurring in the future, you can perform regular maintenance checks on the right side assist step system, avoid physical damage to the step, and address any issues promptly to avoid further complications.