Engine-CodesGeneric – B28A3

B28A3 Code - EyeSight Communication

Quick Answer

The B28A3 diagnostic trouble code (DTC) relates to the EyeSight communication system in a vehicle equipped with Subaru's EyeSight driver-assist technology. Common causes include Faulty EyeSight camera, Damaged wiring in the EyeSight system, Malfunctioning control module. 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
B28A3 indicates EyeSight Communication.
Common causes
Common causes include Faulty EyeSight camera, Damaged wiring in the EyeSight system, Malfunctioning control module.
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 16, 2024
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Code B28A3 Description

The B28A3 diagnostic trouble code (DTC) relates to the EyeSight communication system in a vehicle equipped with Subaru's EyeSight driver-assist technology. EyeSight is a safety feature that uses cameras and sensors to monitor the road ahead, providing features such as adaptive cruise control, lane departure warning, and pre-collision braking. When the B28A3 code is triggered, it indicates a communication error within the EyeSight system.

OBDII Code B28A3 - EyeSight Communication
B28A3 Code - EyeSight Communication

Common Causes of B28A3

  1. Faulty EyeSight camera
  2. Damaged wiring in the EyeSight system
  3. Malfunctioning control module
  4. Communication error between EyeSight components

Symptoms of B28A3

  1. EyeSight warning light illuminated on the dashboard
  2. Loss of adaptive cruise control functionality
  3. Inability to engage lane departure warning
  4. Erratic behavior of pre-collision braking system

How to Fix B28A3

  1. Perform a diagnostic scan to retrieve the specific DTC and pinpoint the cause of the communication error.
  2. Inspect the EyeSight cameras, sensors, and wiring for any visible damage or issues.
  3. Test the communication network between the EyeSight components to identify any faults.
  4. Replace any faulty components, such as sensors, wiring, or the control module, as needed.
  5. Clear the DTC and perform a system reset to ensure proper functionality of the EyeSight system.

Cost to Fix B28A3

The typical repair costs for addressing the B28A3 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the repair for a communication error in the EyeSight system can range from $200 to $800, including parts and labor. It's important to note that diagnosis time and labor rates can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check with local auto repair shops for a more accurate estimate based on the specific circumstances.

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Code B28A3 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 B28A3 Code

1. What are the common symptoms of OBDII code B28A3 (EyeSight Communication)?

- Common symptoms include the EyeSight system not functioning properly, warning lights on the dashboard, and issues with adaptive cruise control or lane keep assist.

2. What are the possible causes of OBDII code B28A3?

- Possible causes of this code include faulty communication between the EyeSight system components, a damaged wiring harness, or a malfunctioning camera or sensor.

3. How can I diagnose OBDII code B28A3?

- Diagnosing this code typically involves conducting a visual inspection of the wiring, checking the connections of the EyeSight components, and using a diagnostic scanner to read the specific fault codes.

4. Can I still drive my vehicle with OBDII code B28A3?

- It is not recommended to drive your vehicle with this code present, as it may indicate a serious issue with the EyeSight system, compromising your safety on the road.

5. How can I repair OBDII code B28A3?

- Repairing this code may involve fixing any damaged wiring, replacing faulty components such as the camera or sensor, or reprogramming the system with updated software.

6. Will resetting the OBDII code B28A3 make it go away permanently?

- Simply resetting the code may temporarily clear the warning lights, but the underlying issue causing the code will likely persist and trigger the code again until properly diagnosed and repaired.

7. Is OBDII code B28A3 specific to a certain vehicle make or model?

- OBDII code B28A3 related to EyeSight Communication is commonly associated with Subaru vehicles equipped with the EyeSight safety system.

8. Can a DIY enthusiast fix OBDII code B28A3 at home?

- While some basic troubleshooting steps can be performed at home, diagnosing and repairing OBDII code B28A3 may require specialized tools and expertise, so it is recommended to consult a professional mechanic.

9. How much does it typically cost to repair OBDII code B28A3?

- The cost of repairing this code can vary depending on the specific issue causing it, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Is it important to address OBDII code B28A3 promptly?

- Yes, it is crucial to address OBDII code B28A3 promptly to ensure the proper functioning of the EyeSight system, which plays a significant role in enhancing vehicle safety and driver assistance features.

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