B0013 Guide to Diagnosing
Passenger Knee Bolster Deployment Control
The OBD-II (On-Board Diagnostics) code B0013 refers to a Passenger Knee Bolster Deployment Control issue. It is related to the airbag system in a vehicle, specifically the deployment control of the passenger knee bolster airbag. Passenger Knee Bolster Deployment Control indicates a malfunction in the system responsible for controlling the deployment of the passenger knee bolster airbag. The knee bolster airbag is part of the airbag system designed to protect the passenger's knees and lower legs in the event of a collision.
Symptoms:
Airbag Warning Light, Non-Deployment of Airbag or Stored Code
Possible Causes of B0013 Code :
- Faulty Wiring or Connectors: There may be a broken, corroded, or loose wire or connector in the airbag system that controls the passenger knee bolster.
- Malfunctioning Sensing or Control Module: The airbag control module (ACM) or sensing module may be faulty and failing to properly control the deployment of the knee bolster airbag.
- Faulty Passenger Knee Bolster Airbag: The airbag itself could be defective, preventing the system from properly deploying it during a crash.
- Damaged Impact Sensors: The sensors that detect a crash and trigger the airbag deployment may be malfunctioning.
How to Fix it?
Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
Common Diagnose and Repairs:
- Scan for Codes: Use an OBD-II scanner to check for additional codes. The B0013 may be accompanied by other airbag-related codes that can give more context to the issue.
- Inspect Wiring: Visually inspect the wiring related to the knee bolster airbag system. Look for any obvious damage, such as cuts, wear, or corrosion.
- Check the Airbag Control Module: Ensure the airbag control module is functioning properly. If it’s damaged, it may need to be replaced or reprogrammed.
- Test the Passenger Side Sensors: Test the sensors involved in the deployment of the knee bolster airbag to ensure they are working correctly.
- Examine Connectors: Inspect all electrical connectors for the airbag system to ensure they are securely fastened and free from corrosion or damage.
- Replace Faulty Components: If any specific component, such as the airbag module or a sensor, is found to be defective, it should be replaced.
- Clear Codes: After addressing the issue, clear the trouble codes and check if the code reappears during a test drive.
