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B28A1 Subaru Code - EyeSight Communication

Quick Answer

The B28A1 Subaru code specifically refers to an issue with the EyeSight communication system in the vehicle. Common causes include Faulty camera or sensor in the EyeSight system, Wiring issues or shorts in the system, Corrosion or damage to connectors. 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
B28A1 Subaru indicates EyeSight Communication.
Common causes
Common causes include Faulty camera or sensor in the EyeSight system, Wiring issues or shorts in the system, Corrosion or damage to connectors.
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 08, 2024
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Code B28A1 Subaru Description

The B28A1 Subaru code specifically refers to an issue with the EyeSight communication system in the vehicle. EyeSight is Subaru's advanced driver-assist system that uses cameras and sensors to provide features such as adaptive cruise control, pre-collision braking, lane departure warning, and lane-keeping assist. When this code is triggered, it indicates a problem with the communication between the various components of the EyeSight system, which can lead to the system not functioning properly or potentially not working at all.

OBDII Code B28A1 Subaru - EyeSight Communication
B28A1 Subaru Code - EyeSight Communication

Common Causes of B28A1 Subaru

  1. Faulty camera or sensor in the EyeSight system
  2. Wiring issues or shorts in the system
  3. Corrosion or damage to connectors
  4. Software glitches or malfunctions in the control modules
  5. Physical damage to the components due to accidents or environmental factors

Symptoms of B28A1 Subaru

  1. Malfunction or warning light related to the EyeSight system
  2. Loss of adaptive cruise control functionality
  3. Inability to engage pre-collision braking
  4. Lane departure warning or lane-keeping assist not working correctly

How to Fix B28A1 Subaru

  1. Begin by diagnosing the specific cause of the communication issue by using a diagnostic scanner to read the code and identify the problem area.
  2. Inspect the cameras, sensors, wiring, and connectors for any visible damage or issues that could be causing the communication problem.
  3. Test the components individually to determine if they are functioning correctly or if they need to be replaced.
  4. Repair or replace any faulty components, such as cameras, sensors, wiring, or control modules, as needed to restore proper communication within the EyeSight system.
  5. Clear the diagnostic trouble codes and test the system to ensure that the communication issue has been resolved and that all safety features are working correctly.

Cost to Fix B28A1 Subaru

The cost of repairing the B28A1 Subaru code related to the EyeSight communication issue can vary depending on the specific cause of the problem and the extent of the repairs needed. In general, the cost of parts for replacing components such as cameras, sensors, or control modules can range from $200 to $1000 or more. Labor costs for diagnosing and repairing the issue can add an additional $200 to $500 or more, depending on the shop's hourly rates and the complexity of the repair.

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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 B28A1 Subaru Code

1. What does OBDII code B28A1 in a Subaru indicate?

This code refers to a communication error with the EyeSight system in the vehicle.

2. What are common symptoms of OBDII code B28A1 in a Subaru?

Common symptoms include the EyeSight warning light coming on, loss of EyeSight system functionality, and potential issues with adaptive cruise control.

3. What can cause the OBDII code B28A1 to trigger in a Subaru?

The code may be triggered by wiring issues, a faulty camera module, software glitches, or a malfunction in the EyeSight system components.

4. How can I diagnose the OBDII code B28A1 in my Subaru?

Diagnosis typically involves using a diagnostic scanner to retrieve the code, inspecting the EyeSight system components for any visible damage, and conducting a communication system check.

5. Can I continue to drive my Subaru with the OBDII code B28A1 present?

It is not recommended to drive the vehicle with this code active as it may affect the proper functioning of the EyeSight safety features.

6. How can I repair the OBDII code B28A1 in my Subaru?

Repair options may include checking and repairing wiring connections, replacing a faulty camera module, updating software, or recalibrating the EyeSight system.

7. Is it possible to reset the OBDII code B28A1 in a Subaru by clearing the fault codes?

Clearing the fault codes may temporarily remove the code, but if the underlying issue is not addressed, the code is likely to reappear.

8. Can a DIY enthusiast fix the OBDII code B28A1 issue in a Subaru?

While some simple checks like inspecting wiring connections can be done by a DIY enthusiast, diagnosing and repairing complex EyeSight system issues may require professional expertise.

9. How much does it typically cost to repair OBDII code B28A1 in a Subaru?

The repair costs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, especially if components need to be replaced.

10. How often does the OBDII code B28A1 occur in Subaru vehicles with EyeSight systems?

While not extremely common, the code can occur due to various factors, and prompt attention to the issue is crucial to maintaining the safety features of the EyeSight system.

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