AutoCodes – Generic – B051D

B051D Code - Right Side Assist Step Position Sensor Circuit

Q: 1. What are the common symptoms of OBDII code B051D related to the Right Side Assist Step Position Sensor Circuit?

- Common symptoms include malfunctioning power retractable running boards, warning lights on the dashboard, and difficulty accessing the vehicle.

Q: 2. What are the possible causes of OBDII code B051D?

- The code B051D may be triggered by a faulty right side assist step position sensor, damaged wiring or connectors, or a malfunctioning control module.

Q: 3. How can I diagnose the issue causing OBDII code B051D?

- Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the wiring and connectors for damage, and testing the right side assist step position sensor for proper function.

Q: 4. Is it safe to drive with OBDII code B051D active?

- It is generally not recommended to drive with code B051D active, as it may affect the operation of the power retractable running boards and compromise the safety and convenience of entering and exiting the vehicle.

Q: 5. Can I reset OBDII code B051D without fixing the underlying issue?

- While you can clear the code temporarily, it is crucial to address the root cause of the problem to prevent the code from recurring and to ensure the proper functioning of the right side assist step system.

Q: 6. How can I repair OBDII code B051D related to the Right Side Assist Step Position Sensor Circuit?

- Repairing the code B051D involves replacing the faulty right side assist step position sensor, repairing damaged wiring or connectors, or reprogramming the control module if necessary.

Q: 7. Are there any DIY tips for troubleshooting OBDII code B051D?

- DIY troubleshooting tips include checking the wiring and connectors for visible damage, ensuring proper sensor alignment, and performing a reset by disconnecting the battery for a few minutes.

Q: 8. Can extreme weather conditions cause OBDII code B051D to trigger?

- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially damage the right side assist step position sensor or its components, leading to the activation of code B051D.

Q: 9. How long does it typically take to repair OBDII code B051D?

- The repair time for OBDII code B051D can vary depending on the specific cause of the issue, but it may take anywhere from 1 to 3 hours to diagnose and fix the problem.

Q: 10. Is it necessary to visit a dealership for OBDII code B051D repair?

- While visiting a dealership is an option, independent auto repair shops and experienced mechanics can also diagnose and repair OBDII code B051D related to the 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 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.

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Code Popularity 1,479

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 B051D 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 B051D - Right Side Assist Step Position Sensor Circuit - AutoCodes.com — B051D Code - Right Side Assist Step Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B051D?

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?

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

B051D:01 Right Side Assist Step Position Sensor Circuit Short to Battery
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 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 code?

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Need Help with the Code?

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Information for Specific Makes

B051D Buick — Right Side Assist Step Position Sensor Circuit
B051D Cadillac — Right Side Assist Step Position Sensor Circuit
B051D Chevrolet — Right Side Assist Step Position Sensor Circuit
B051D GMC — Right Side Assist Step Position Sensor Circuit

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 B051D Code

1. What are the common symptoms of OBDII code B051D related to the Right Side Assist Step Position Sensor Circuit?

- Common symptoms include malfunctioning power retractable running boards, warning lights on the dashboard, and difficulty accessing the vehicle.

2. What are the possible causes of OBDII code B051D?

- The code B051D may be triggered by a faulty right side assist step position sensor, damaged wiring or connectors, or a malfunctioning control module.

3. How can I diagnose the issue causing OBDII code B051D?

- Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the wiring and connectors for damage, and testing the right side assist step position sensor for proper function.

4. Is it safe to drive with OBDII code B051D active?

- It is generally not recommended to drive with code B051D active, as it may affect the operation of the power retractable running boards and compromise the safety and convenience of entering and exiting the vehicle.

5. Can I reset OBDII code B051D without fixing the underlying issue?

- While you can clear the code temporarily, it is crucial to address the root cause of the problem to prevent the code from recurring and to ensure the proper functioning of the right side assist step system.

6. How can I repair OBDII code B051D related to the Right Side Assist Step Position Sensor Circuit?

- Repairing the code B051D involves replacing the faulty right side assist step position sensor, repairing damaged wiring or connectors, or reprogramming the control module if necessary.

7. Are there any DIY tips for troubleshooting OBDII code B051D?

- DIY troubleshooting tips include checking the wiring and connectors for visible damage, ensuring proper sensor alignment, and performing a reset by disconnecting the battery for a few minutes.

8. Can extreme weather conditions cause OBDII code B051D to trigger?

- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially damage the right side assist step position sensor or its components, leading to the activation of code B051D.

9. How long does it typically take to repair OBDII code B051D?

- The repair time for OBDII code B051D can vary depending on the specific cause of the issue, but it may take anywhere from 1 to 3 hours to diagnose and fix the problem.

10. Is it necessary to visit a dealership for OBDII code B051D repair?

- While visiting a dealership is an option, independent auto repair shops and experienced mechanics can also diagnose and repair OBDII code B051D related to the Right Side Assist Step Position Sensor Circuit.