AutoCodes – Generic – B28A1

B28A1 Code - EyeSight Communication

Quick Answer

The Diagnostic Trouble Code (DTC) is set when the Engine Control Module (ECM) detects the malfunction of a stereo camera, or when the stereo camera or ECM is assembled incorrectly. Common causes include Faulty Stereo Camera, Stereo Camera harness is open or shorted, Stereo Camera circuit poor electrical connection. 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 indicates EyeSight Communication.
Common causes: Common causes include Faulty Stereo Camera, Stereo Camera harness is open or shorted, Stereo Camera circuit poor electrical connection.
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.

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Code Popularity 457

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 19, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B28A1 Description

The Diagnostic Trouble Code (DTC) is set when the Engine Control Module (ECM) detects the malfunction of a stereo camera, or when the stereo camera or ECM is assembled incorrectly.

OBDII Code B28A1 - EyeSight Communication - AutoCodes.com — B28A1 Code - EyeSight Communication

What does this mean?

What are the Possible Causes of the DTC B28A1?

Faulty Stereo Camera
Stereo Camera harness is open or shorted
Stereo Camera circuit poor electrical connection

How to Fix the DTC B28A1?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B28A1 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Makes

B28A1 Subaru — EyeSight Communication

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 Code

1. What does the OBDII code B28A1 mean?

Code B28A1 indicates an issue with the EyeSight communication system in a Subaru vehicle, which relies on cameras and sensors to assist with safety features like adaptive cruise control and lane-keeping.

2. What are the common symptoms of code B28A1?

Common symptoms include deactivation of EyeSight features, warning lights on the dashboard, or error messages related to the safety system.

3. What causes the B28A1 code to appear?

The code can be triggered by issues such as a misaligned camera, dirty or obstructed sensors, wiring problems, or a malfunction in the EyeSight control module.

4. Can weather conditions cause the B28A1 code?

Yes, adverse weather conditions like heavy rain, snow, or fog can obstruct the cameras or sensors, potentially causing this code to appear temporarily.

5. How do I fix the B28A1 code?

Cleaning the EyeSight camera lenses, ensuring proper alignment, and checking for loose or damaged wiring are good starting points. A professional diagnostic scan may be required if the issue persists.

6. Do I need to recalibrate the EyeSight system to clear the B28A1 code?

Recalibration may be necessary if the cameras or sensors have been misaligned due to windshield replacement, collision, or other impacts.

7. Can a weak battery trigger the B28A1 code?

Yes, a weak or failing battery can cause communication errors in the EyeSight system, potentially triggering this code.

8. Is it safe to drive with the B28A1 code active?

While the vehicle may still be drivable, the EyeSight safety features may be disabled, reducing the overall safety of the vehicle.

9. How much does it cost to repair the B28A1 code?

Costs can vary but may range from simple cleaning or recalibration (around $100-$300) to more expensive repairs if the control module or sensors need replacement.

10. Can I clear the B28A1 code without fixing the problem?

Clearing the code without addressing the root cause is not recommended, as the issue will likely return and could compromise the functionality of the EyeSight system.