AutoCodes – Chevrolet – B051C 2015 Chevrolet Silverado

B051C 2015 Chevrolet Silverado Code - Left Side Assist Step Position Sensor 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 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 2015 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 281
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 13, 2022
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Code B051C 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 B051C 2015 Chevrolet Silverado - Left Side Assist Step Position Sensor Circuit - AutoCodes.com
B051C 2015 Chevrolet Silverado Code - Left Side Assist Step Position Sensor Circuit

What are the Possible Causes of the DTC B051C 2015 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 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B051C 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 B051C 2015 Chevrolet Silverado code?

Need more information on how to fix the B051C 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 B051C 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B051C on a 2015 Chevrolet Silverado?

- Common symptoms include the left side assist step not deploying or retracting properly, and the driver receiving a warning light on the dashboard.

2. What does the OBDII code B051C indicate in a 2015 Chevrolet Silverado?

- The code B051C signifies a fault in the left side assist step position sensor circuit of the vehicle.

3. What are the possible causes of OBDII code B051C on a 2015 Chevrolet Silverado?

- The code B051C can be triggered by a faulty left side assist step position sensor, damaged wiring or connectors, or a malfunction in the control module.

4. How can I diagnose the issue causing OBDII code B051C on my 2015 Chevrolet Silverado?

- To diagnose the problem, you can use a scan tool to retrieve the trouble code, inspect the wiring and connectors for any damage, and test the left side assist step position sensor for proper function.

5. Can I still drive my 2015 Chevrolet Silverado with OBDII code B051C?

- 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 left side assist step.

6. How can I repair OBDII code B051C on a 2015 Chevrolet Silverado?

- Repairing the B051C code may involve replacing the faulty left side assist step position sensor, repairing any damaged wiring or connectors, or reprogramming the control module.

7. Is it possible to reset OBDII code B051C on a 2015 Chevrolet Silverado without repairs?

- While clearing the code temporarily may be possible, it is crucial to address the underlying issue causing the code to prevent it from reoccurring.

8. Are there any DIY tips for troubleshooting OBDII code B051C on a 2015 Chevrolet Silverado?

- DIY tips include visually inspecting the wiring and connectors for any visible damage, checking the fuse related to the left side assist step, and ensuring proper sensor alignment.

9. How much does it cost to repair OBDII code B051C on a 2015 Chevrolet Silverado?

- The cost of repairing OBDII code B051C can vary depending on the specific issue, parts needed, and labor costs, so it is recommended to consult a professional for an accurate estimate.

10. Can OBDII code B051C on a 2015 Chevrolet Silverado cause other problems if left unresolved?

- Ignoring OBDII code B051C can lead to continued issues with the left side assist step, potential safety concerns, and may trigger additional warning lights or codes in the vehicle's system.

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