AutoCodes – Generic – B051C:01

B051C:01 Code - Left Side Assist Step Position Sensor Circuit Short to Battery

Q: 1. What are common symptoms of OBDII code B051C:01 - Left Side Assist Step Position Sensor Circuit Short to Battery?

The common symptoms include the left side assist step not deploying or retracting properly, the assist step getting stuck, and the corresponding warning light illuminated on the dashboard.

Q: 2. What are the possible causes of OBDII code B051C:01?

Possible causes include a short circuit in the wiring of the left side assist step position sensor, a malfunctioning position sensor, or a faulty control module.

Q: 3. How can I diagnose the issue related to OBDII code B051C:01?

Diagnosing the issue may involve visually inspecting the wiring harness, testing the position sensor for proper operation, and using a scan tool to read the trouble codes stored in the vehicle's computer system.

Q: 4. Can I still drive my vehicle with OBDII code B051C:01 active?

While it may be possible to drive the vehicle with this code, it is recommended to address the issue promptly to ensure the proper operation of the left side assist step and to prevent further damage to the system.

Q: 5. Is it safe to attempt repairs for OBDII code B051C:01 on my own?

If you have experience with automotive electrical systems and the necessary tools, you may attempt basic repairs such as checking and repairing wiring connections. However, more complex issues may require professional assistance.

Q: 6. How can I reset the OBDII code B051C:01 after making repairs?

After completing the necessary repairs, you can reset the trouble code using an OBDII scan tool or by disconnecting the vehicle's battery for a few minutes to clear the error code.

Q: 7. Are there any preventive measures to avoid OBDII code B051C:01 in the future?

Regular inspection and maintenance of the left side assist step system, including checking the wiring harness and sensors for any signs of wear or damage, can help prevent issues like a circuit short to battery.

Q: 8. How much does it typically cost to repair OBDII code B051C:01 at a repair shop?

The cost of repairs can vary depending on the exact cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed. It is advisable to obtain quotes from multiple shops for comparison.

Q: 9. Can OBDII code B051C:01 affect other vehicle systems?

While this code specifically relates to the left side assist step position sensor circuit, electrical issues in one part of the vehicle can sometimes cause issues in other systems. It's important to address the problem promptly to prevent any potential cascading effects.

Q: 10. How long does it take to repair OBDII code B051C:01?

The repair time can vary based on the complexity of the issue and the availability of parts. Simple repairs like fixing a wiring connection may take less time, while replacing a faulty sensor or control module could require more extensive work and time.

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:01 indicates Left Side Assist Step Position Sensor Circuit Short to Battery.
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 255

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:01 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:01 - Left Side Assist Step Position Sensor Circuit Short to Battery - AutoCodes.com — B051C:01 Code - Left Side Assist Step Position Sensor Circuit Short to Battery

What does this mean?

What are the Possible Causes of the DTC B051C:01?

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:01?

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:01 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.

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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:01 Code

1. What are common symptoms of OBDII code B051C:01 - Left Side Assist Step Position Sensor Circuit Short to Battery?

The common symptoms include the left side assist step not deploying or retracting properly, the assist step getting stuck, and the corresponding warning light illuminated on the dashboard.

2. What are the possible causes of OBDII code B051C:01?

Possible causes include a short circuit in the wiring of the left side assist step position sensor, a malfunctioning position sensor, or a faulty control module.

3. How can I diagnose the issue related to OBDII code B051C:01?

Diagnosing the issue may involve visually inspecting the wiring harness, testing the position sensor for proper operation, and using a scan tool to read the trouble codes stored in the vehicle's computer system.

4. Can I still drive my vehicle with OBDII code B051C:01 active?

While it may be possible to drive the vehicle with this code, it is recommended to address the issue promptly to ensure the proper operation of the left side assist step and to prevent further damage to the system.

5. Is it safe to attempt repairs for OBDII code B051C:01 on my own?

If you have experience with automotive electrical systems and the necessary tools, you may attempt basic repairs such as checking and repairing wiring connections. However, more complex issues may require professional assistance.

6. How can I reset the OBDII code B051C:01 after making repairs?

After completing the necessary repairs, you can reset the trouble code using an OBDII scan tool or by disconnecting the vehicle's battery for a few minutes to clear the error code.

7. Are there any preventive measures to avoid OBDII code B051C:01 in the future?

Regular inspection and maintenance of the left side assist step system, including checking the wiring harness and sensors for any signs of wear or damage, can help prevent issues like a circuit short to battery.

8. How much does it typically cost to repair OBDII code B051C:01 at a repair shop?

The cost of repairs can vary depending on the exact cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed. It is advisable to obtain quotes from multiple shops for comparison.

9. Can OBDII code B051C:01 affect other vehicle systems?

While this code specifically relates to the left side assist step position sensor circuit, electrical issues in one part of the vehicle can sometimes cause issues in other systems. It's important to address the problem promptly to prevent any potential cascading effects.

10. How long does it take to repair OBDII code B051C:01?

The repair time can vary based on the complexity of the issue and the availability of parts. Simple repairs like fixing a wiring connection may take less time, while replacing a faulty sensor or control module could require more extensive work and time.