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Engine-Codes – Generic – B28B9

B28B9 Code - EyeSight Steering Switch 2

Quick Answer

The B28B9 diagnostic trouble code (DTC) specifically relates to the EyeSight Steering Switch 2 in the vehicle. Common causes include Defective EyeSight Steering Switch 2 component, Wiring harness issues, such as loose connections or damaged wires, Software glitches or programming errors within the EyeSight system. 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
B28B9 indicates EyeSight Steering Switch 2.
Common causes
Common causes include Defective EyeSight Steering Switch 2 component, Wiring harness issues, such as loose connections or damaged wires, Software glitches or programming errors within the EyeSight system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code B28B9 Description

The B28B9 diagnostic trouble code (DTC) specifically relates to the EyeSight Steering Switch 2 in the vehicle. EyeSight is a driver-assist system developed by Subaru that uses cameras and sensors to provide features such as adaptive cruise control, pre-collision braking, lane departure warning, and lane-keeping assist. The Steering Switch 2 refers to a component within the system that is responsible for controlling certain functions related to steering input and driver assistance features.

OBDII Code B28B9 - EyeSight Steering Switch 2
B28B9 Code - EyeSight Steering Switch 2

Common Causes of B28B9

  1. Defective EyeSight Steering Switch 2 component.
  2. Wiring harness issues, such as loose connections or damaged wires.
  3. Software glitches or programming errors within the EyeSight system.
  4. Sensor failures or malfunctions affecting the steering input detection.
  5. Environmental factors, such as extreme temperatures or moisture, impacting system performance.

Symptoms of B28B9

  1. Malfunction indicator light (MIL) or check engine light illuminated on the dashboard.
  2. Loss of certain EyeSight driver-assist features, such as adaptive cruise control or lane-keeping assist.
  3. Inaccurate or erratic behavior of the steering input or assistance functions.
  4. Error messages related to the EyeSight system displayed on the vehicle's information screen.
  5. Increased difficulty in maintaining safe distances or staying within lanes while driving.

How to Fix B28B9

  1. Begin by conducting a thorough diagnostic scan of the vehicle's onboard computer to retrieve the specific DTC and pinpoint the issue with the EyeSight Steering Switch 2.
  2. Inspect the wiring harness and connections related to the EyeSight system for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the Steering Switch 2 component for functionality and replace it if found to be defective.
  4. Update the software or perform a system reset to address any programming errors or glitches within the EyeSight system.
  5. Calibrate and test the EyeSight system to ensure proper functionality and alignment of the driver-assist features.

Cost to Fix B28B9

The typical repair costs for addressing the B28B9 code related to the EyeSight Steering Switch 2 can vary depending on the specific cause of the issue and the extent of repairs needed. In general, parts and labor for this type of repair may range from $200 to $500 or more. It's important to note that diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and the complexity of the repair. It's advisable to consult with a qualified technician or service center to obtain a more accurate estimate based on your individual circumstances.

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Code B28B9 Information for Specific Makes

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 B28B9 Code

1. What are common symptoms associated with OBDII code B28B9 (EyeSight Steering Switch 2)?

- Common symptoms may include issues with the steering control system, such as unresponsive steering switches or malfunctioning steering assist features.

2. What could cause OBDII code B28B9 to trigger?

- The code B28B9 may be triggered by a faulty EyeSight steering switch, wiring issues, or a malfunction in the steering control module.

3. How can I diagnose the cause of OBDII code B28B9?

- Diagnosis typically involves inspecting the EyeSight steering switch, checking the wiring for any damage, and using a diagnostic scanner to identify the specific issue.

4. Can a DIY enthusiast repair OBDII code B28B9 at home?

- Repairing code B28B9 may require advanced technical knowledge and specialized tools. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

5. Is it safe to continue driving with OBDII code B28B9 present?

- Driving with code B28B9 present may affect the performance of the steering control system. It is advisable to address the issue promptly to ensure safe driving conditions.

6. How much does it typically cost to repair OBDII code B28B9?

- The cost of repairing code B28B9 can vary depending on the specific cause of the issue, parts needed for replacement, and labor costs. It is recommended to obtain quotes from different repair shops.

7. Can resetting the OBDII code B28B9 clear the issue?

- Resetting the code may temporarily clear the error from the system, but if the underlying issue is not addressed, the code is likely to reappear.

8. What are the potential risks of ignoring OBDII code B28B9?

- Ignoring code B28B9 may lead to compromised steering functionality, affecting the vehicle's handling and safety. It is important to address the issue promptly.

9. Are there any recalls or technical service bulletins related to OBDII code B28B9?

- It is advisable to check with the vehicle manufacturer or authorized service centers for any recalls or technical service bulletins related to code B28B9 to ensure proper resolution.

10. Can a faulty EyeSight Steering Switch 2 impact other vehicle systems?

- A faulty EyeSight Steering Switch 2 can impact the overall performance of the EyeSight system, which may affect other safety features and driver assistance systems in the vehicle.

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