Engine-CodesGeneric – B052B:02

B052B:02 Code - Assist Step Position Sensor Supply Circuit Short to Ground

Quick Answer

The B052B:02 diagnostic trouble code (DTC) indicates a problem with the Assist Step Position Sensor Supply Circuit being shorted to ground. Common causes include Wiring harness damage or wear leading to a short to ground, Faulty assist step position sensor, Corrosion or poor connections in the sensor supply circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B052B:02 indicates Assist Step Position Sensor Supply Circuit Short to Ground.
Common causes
Common causes include Wiring harness damage or wear leading to a short to ground, Faulty assist step position sensor, Corrosion or poor connections in the sensor supply circuit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 18, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B052B:02 Description

The B052B:02 diagnostic trouble code (DTC) indicates a problem with the Assist Step Position Sensor Supply Circuit being shorted to ground. This sensor is responsible for detecting the position of the assist step on the vehicle, which is a motorized step that extends out when the door is opened to help passengers enter and exit the vehicle more easily. When the sensor supply circuit is shorted to ground, it can cause issues with the proper functioning of the assist step system.

OBDII Code B052B:02 - Assist Step Position Sensor Supply Circuit Short to Ground
B052B:02 Code - Assist Step Position Sensor Supply Circuit Short to Ground

Common Causes of B052B:02

  1. Wiring harness damage or wear leading to a short to ground.
  2. Faulty assist step position sensor.
  3. Corrosion or poor connections in the sensor supply circuit.
  4. Water intrusion into the sensor or wiring causing a short.
  5. Electrical issues within the vehicle's electrical system affecting the sensor circuit.

Symptoms of B052B:02

  1. Assist step not deploying or retracting properly.
  2. Warning light on the dashboard related to the assist step system.
  3. Unusual noises coming from the assist step mechanism.
  4. Inconsistent behavior of the assist step when opening or closing the vehicle door.

How to Fix B052B:02

  1. Begin by visually inspecting the wiring harness and connections related to the assist step position sensor for any signs of damage, wear, or corrosion.
  2. Test the assist step position sensor using a multimeter to check for proper functionality and resistance values.
  3. Check for any water intrusion into the sensor or wiring and address any sealing or drainage issues.
  4. Repair or replace any damaged wiring, connectors, or components in the sensor supply circuit.
  5. Clear the DTC from the vehicle's computer using a diagnostic scan tool and test the assist step system to ensure proper operation.

Cost to Fix B052B:02

The typical repair costs for addressing a B052B:02 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair could range from $50 to $200, while labor costs could range from $100 to $300. It's important to note that these are rough estimates, and actual costs may vary based on factors such as the vehicle make and model, the location of the repair shop, and any additional diagnostic or repair work required. It's recommended to consult with a qualified mechanic or repair shop for a more accurate cost estimate based on the specific circumstances of the vehicle.

Need more information about the B052B:02 code?

Need more information on how to fix the B052B:02 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B052B:02 code diagnosed by a professional: Find a repair shop in your area

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 B052B:02 Code

1. What does the OBDII code B052B:02 mean?

The code B052B:02 indicates a "short to ground" issue in the supply circuit of the assist step position sensor, which monitors the deployment or retraction of powered assist steps on a vehicle.

2. What are the common symptoms of code B052B:02?

Common symptoms include assist steps not deploying or retracting, intermittent operation, or a completely non-functional powered assist step system.

3. What causes the B052B:02 code to trigger?

This code is typically caused by damaged wiring or connectors, a short circuit to ground, a faulty assist step position sensor, or a malfunction in the assist step motor.

4. Can I still drive my vehicle with the B052B:02 code?

Yes, you can generally drive your vehicle, but the powered assist steps may not function properly, which could make entering or exiting the vehicle more difficult, especially for passengers with mobility concerns.

5. How do I diagnose the B052B:02 code?

Start by inspecting the wiring and connectors for damage or corrosion, followed by testing the assist step position sensor and the motor for proper operation with a multimeter.

6. What tools are needed to fix the B052B:02 code?

You’ll need a diagnostic scan tool, a multimeter, wire repair supplies, and potentially replacement parts such as the assist step position sensor or related wiring harnesses.

7. How much does it typically cost to repair the B052B:02 code?

The repair cost depends on the cause, but it can range from $50 to $200 for wiring repairs or sensor replacement, excluding labor costs if done by a professional.

8. Can I fix the B052B:02 code myself?

Yes, if you have basic automotive repair knowledge and tools, you can inspect and replace damaged wiring, connectors, or the assist step position sensor.

9. Does the B052B:02 code always mean the assist step position sensor is faulty?

No, the code may also be triggered by damaged wiring, corroded connectors, or a short circuit elsewhere in the system.

10. What should I do if the B052B:02 code returns after repair?

If the code persists, recheck the wiring and connectors for hidden damage, ensure all repairs were done correctly, and consider inspecting the control module for potential faults.

Discuss the causes and fixes for B052B:02 OBDII Code

Code B052B:02 comments

No comments found for this page.