B051D 2015 GMC Sierra Code - Right 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 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
- B051D 2015 GMC Sierra indicates Right Side Assist Step Position Sensor 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.
Code B051D 2015 GMC Sierra Description
What are the Possible Causes of the DTC B051D 2015 GMC Sierra?
- 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 B051D 2015 GMC Sierra?
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
B051D:02 Right Side Assist Step Position Sensor Circuit Short to Ground
B051D:22 Right Side Assist Step Position Sensor Circuit Low Time < Minimum
B051D:29 Right Side Assist Step Position Sensor Circuit Too Few Pulses
B051D:2A Right Side Assist Step Position Sensor Circuit Too Many Pulses
B051D:62 Right Side Assist Step Position Sensor Circuit Actuator Stuck Open
B051D:63 Right Side Assist Step Position Sensor Circuit Actuator Stuck Closed
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B051D 2015 GMC Sierra 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 B051D 2015 GMC Sierra code?
Need more information on how to fix the B051D 2015 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B051D 2015 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B051D 2015 GMC Sierra Code
1. What does the OBDII code B051D mean for a 2015 GMC Sierra?
B051D indicates an issue with the Right Side Assist Step Position Sensor Circuit, which monitors the position of the retractable assist step on the passenger side.
2. What are the common symptoms of code B051D in a 2015 GMC Sierra?
Common symptoms include the right side assist step not deploying or retracting properly, warning messages on the dashboard, or erratic movement of the step.
3. What causes the B051D code to appear on a 2015 GMC Sierra?
The code can be triggered by a faulty assist step position sensor, damaged wiring or connectors in the sensor circuit, or issues with the control module.
4. How can I diagnose the B051D code on my GMC Sierra?
First, inspect the wiring and connectors for damage or corrosion. Then, test the assist step position sensor for proper operation using a multimeter or diagnostic tool.
5. Can I still drive my GMC Sierra with the B051D code active?
Yes, you can drive the vehicle, but the right side assist step may be inoperable or unsafe to use until the issue is resolved.
6. How do I fix the B051D code on my 2015 GMC Sierra?
Repairs may include replacing the faulty position sensor, repairing damaged wiring, or cleaning corroded connectors in the sensor circuit.
7. How much does it cost to fix the B051D code?
Repair costs vary but typically range from $100 to $300, depending on whether the sensor or wiring requires replacement.
8. Can a B051D code be caused by a software issue?
While rare, a software issue in the control module could potentially cause this code. Updating or reprogramming the module may be necessary in some cases.
9. Is it possible to clear the B051D code without fixing the problem?
You can clear the code with an OBDII scanner, but it will likely return if the underlying issue is not resolved.
10. How can I prevent the B051D code from recurring?
Regularly inspect and maintain the assist step mechanism, including keeping the sensor and wiring clean and free of debris or corrosion.
Discuss the causes and fixes for B051D 2015 GMC Sierra OBDII Code
Code B051D 2015 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
