AutoCodes – Chevrolet – B051C 2018 Chevrolet Silverado

B051C 2018 Chevrolet Silverado Code - Left Side Assist Step Position Sensor Circuit

Q: 1. What does the OBDII code B051C on a 2018 Chevrolet Silverado indicate?

The code B051C indicates a problem with the Left Side Assist Step Position Sensor Circuit in the vehicle.

Q: 2. What are the common symptoms of a faulty Left Side Assist Step Position Sensor Circuit in a 2018 Chevrolet Silverado?

Common symptoms include malfunctioning or unresponsive left-side assist steps, warning lights on the dashboard, and potential issues with the vehicle's electrical system.

Q: 3. What are some possible causes of the B051C code on a 2018 Chevrolet Silverado?

Possible causes include a damaged or faulty position sensor, wiring issues, loose connections, or a malfunctioning control module related to the left-side assist step system.

Q: 4. How can I diagnose the issue related to the Left Side Assist Step Position Sensor Circuit in my 2018 Chevrolet Silverado?

Diagnosing the problem may involve using an OBDII scanner to retrieve the specific trouble code, conducting a visual inspection of the sensor and wiring, checking for loose connections, and performing electrical tests as needed.

Q: 5. Can I repair the Left Side Assist Step Position Sensor Circuit issue in my 2018 Chevrolet Silverado myself?

Depending on your experience and expertise, you may be able to repair the issue yourself by replacing the faulty sensor, repairing damaged wiring, or addressing loose connections. However, if you're unsure, it's recommended to seek professional help.

Q: 6. Are there any safety concerns associated with a malfunctioning Left Side Assist Step Position Sensor Circuit in a 2018 Chevrolet Silverado?

A malfunctioning sensor circuit can affect the proper operation of the left-side assist steps, potentially leading to safety hazards such as tripping or falling when entering or exiting the vehicle. It's crucial to address this issue promptly.

Q: 7. Will driving my 2018 Chevrolet Silverado with the B051C code cause further damage?

Continuing to drive the vehicle with a faulty Left Side Assist Step Position Sensor Circuit may exacerbate the problem and potentially lead to additional issues with the assist step system or other related components. It's best to address the problem as soon as possible.

Q: 8. How much does it typically cost to repair the Left Side Assist Step Position Sensor Circuit issue in a 2018 Chevrolet Silverado?

The cost of repair can vary depending on the specific cause of the problem, parts needed for replacement, and labor charges. It's advisable to obtain quotes from reputable mechanics or service centers for an accurate estimate.

Q: 9. Can resetting the trouble code associated with the Left Side Assist Step Position Sensor Circuit resolve the issue in my 2018 Chevrolet Silverado?

Resetting the trouble code may temporarily clear the warning lights on the dashboard, but it won't fix the underlying problem with the sensor circuit. It's essential to diagnose and address the root cause of the issue for a lasting solution.

Q: 10. Is the Left Side Assist Step Position Sensor Circuit covered under any warranty for a 2018 Chevrolet Silverado?

Depending on the vehicle's warranty status, the repair or replacement of the Left Side Assist Step Position Sensor Circuit may be covered under the manufacturer's warranty or an extended warranty. Check with your dealership or warranty provider for details.

Quick Answer

The Assist Step Control (ASC) Module controls the running board actuators to extend or retract the running boards. Common causes include Faulty Left Side Assist Step Motor, Left Side Assist Step Motor harness is open or shorted, Left 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: B051C 2018 Chevrolet Silverado indicates Left Side Assist Step Position Sensor Circuit.
Common causes: Common causes include Faulty Left Side Assist Step Motor, Left Side Assist Step Motor harness is open or shorted, Left 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 406

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 B051C 2018 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 B051C 2018 Chevrolet Silverado - Left Side Assist Step Position Sensor Circuit - AutoCodes.com — B051C 2018 Chevrolet Silverado Code - Left Side Assist Step Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B051C 2018 Chevrolet Silverado?

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

How to Fix the DTC B051C 2018 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

B051C:01 Left Side Assist Step Position Sensor Circuit Short to Battery
B051C:02 Left Side Assist Step Position Sensor Circuit Short to Ground
B051C:22 Left Side Assist Step Position Sensor Circuit Low Time < Minimum
B051C:29 Left Side Assist Step Position Sensor Circuit Too Few Pulses
B051C:2A Left Side Assist Step Position Sensor Circuit Too Many Pulses
B051C:62 Left Side Assist Step Position Sensor Circuit Actuator Stuck Open
B051C:63 Left Side Assist Step Position Sensor Circuit Actuator Stuck Closed

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B051C 2018 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 B051C 2018 Chevrolet Silverado code?

Need more information on how to fix the B051C 2018 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 B051C 2018 Chevrolet Silverado Code

1. What does the OBDII code B051C on a 2018 Chevrolet Silverado indicate?

The code B051C indicates a problem with the Left Side Assist Step Position Sensor Circuit in the vehicle.

2. What are the common symptoms of a faulty Left Side Assist Step Position Sensor Circuit in a 2018 Chevrolet Silverado?

Common symptoms include malfunctioning or unresponsive left-side assist steps, warning lights on the dashboard, and potential issues with the vehicle's electrical system.

3. What are some possible causes of the B051C code on a 2018 Chevrolet Silverado?

Possible causes include a damaged or faulty position sensor, wiring issues, loose connections, or a malfunctioning control module related to the left-side assist step system.

4. How can I diagnose the issue related to the Left Side Assist Step Position Sensor Circuit in my 2018 Chevrolet Silverado?

Diagnosing the problem may involve using an OBDII scanner to retrieve the specific trouble code, conducting a visual inspection of the sensor and wiring, checking for loose connections, and performing electrical tests as needed.

5. Can I repair the Left Side Assist Step Position Sensor Circuit issue in my 2018 Chevrolet Silverado myself?

Depending on your experience and expertise, you may be able to repair the issue yourself by replacing the faulty sensor, repairing damaged wiring, or addressing loose connections. However, if you're unsure, it's recommended to seek professional help.

6. Are there any safety concerns associated with a malfunctioning Left Side Assist Step Position Sensor Circuit in a 2018 Chevrolet Silverado?

A malfunctioning sensor circuit can affect the proper operation of the left-side assist steps, potentially leading to safety hazards such as tripping or falling when entering or exiting the vehicle. It's crucial to address this issue promptly.

7. Will driving my 2018 Chevrolet Silverado with the B051C code cause further damage?

Continuing to drive the vehicle with a faulty Left Side Assist Step Position Sensor Circuit may exacerbate the problem and potentially lead to additional issues with the assist step system or other related components. It's best to address the problem as soon as possible.

8. How much does it typically cost to repair the Left Side Assist Step Position Sensor Circuit issue in a 2018 Chevrolet Silverado?

The cost of repair can vary depending on the specific cause of the problem, parts needed for replacement, and labor charges. It's advisable to obtain quotes from reputable mechanics or service centers for an accurate estimate.

9. Can resetting the trouble code associated with the Left Side Assist Step Position Sensor Circuit resolve the issue in my 2018 Chevrolet Silverado?

Resetting the trouble code may temporarily clear the warning lights on the dashboard, but it won't fix the underlying problem with the sensor circuit. It's essential to diagnose and address the root cause of the issue for a lasting solution.

10. Is the Left Side Assist Step Position Sensor Circuit covered under any warranty for a 2018 Chevrolet Silverado?

Depending on the vehicle's warranty status, the repair or replacement of the Left Side Assist Step Position Sensor Circuit may be covered under the manufacturer's warranty or an extended warranty. Check with your dealership or warranty provider for details.