AutoCodes – Buick – B0228 Buick

B0228 Buick Code - Left Recirculate Position Feedback Circuit

Quick Answer

The Heating, Ventilation, and Air Conditioning (HVAC) control module controls the HVAC door actuators to regulate the airflow through the HVAC system. Common causes include Faulty Recirculate Actuator, Recirculate Actuator harness is open or shorted, Recirculate Actuator circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B0228 Buick indicates Left Recirculate Position Feedback Circuit.
Common causes: Common causes include Faulty Recirculate Actuator, Recirculate Actuator harness is open or shorted, Recirculate Actuator circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 5,417

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 29, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0228 Buick Description

The Heating, Ventilation, and Air Conditioning (HVAC) control module controls the HVAC door actuators to regulate the airflow through the HVAC system. Each actuator consists of an electric motor and a potentiometer. The module supplies a low reference and 5-volt reference source voltage to the potentiometer. The HVAC control module monitors the voltage drop across the potentiometer on the door position signal circuit. When the actuator shaft rotates, the voltage on the door position signal circuit changes. The control circuit uses either a 0, 2.5 or 5-volt signal to command the actuator movement. When the actuator is at rest, the control circuit value is 2.5 volts. A 0 or 5-volt control signal commands the actuator movement in opposite directions.

OBDII Code B0228 Buick - Left Recirculate Position Feedback Circuit - AutoCodes.com — B0228 Buick Code - Left Recirculate Position Feedback Circuit

What does this mean?

What are the Possible Causes of the DTC B0228 Buick?

Faulty Recirculate Actuator
Recirculate Actuator harness is open or shorted
Recirculate Actuator circuit poor electrical connection
Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module

How to Fix the DTC B0228 Buick?

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 does this mean?

Code Tech Notes

B0228:02 Recirculate Position Feedback Circuit Short to Ground
B0228:05 Recirculate Position Feedback Circuit Short to Battery or Open
B0228:61 Recirculate Position Circuit Actuator Stuck

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0228 Buick 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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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 B0228 Buick Code

1. What are the common symptoms of OBDII code B0228 in a Buick related to the Left Recirculate Position Feedback Circuit?

- Common symptoms include inconsistent air conditioning performance, unusual noises from the HVAC system, and the inability to control the recirculation function.

2. What can cause the OBDII code B0228 to trigger in a Buick?

- The code B0228 is typically triggered by a malfunction in the left recirculate position feedback circuit, which can be caused by a faulty recirculation door actuator, wiring issues, or a defective HVAC control module.

3. How can I diagnose the OBDII code B0228 in my Buick?

- Diagnosing the code B0228 involves using an OBDII scanner to retrieve the code, inspecting the left recirculate door actuator and associated wiring for any visible damage, and testing the components for proper functionality.

4. What are some repair tips for fixing OBDII code B0228 in a Buick?

- Repair tips include replacing the left recirculate door actuator if faulty, repairing any damaged wiring, ensuring proper connections, and resetting the HVAC system to clear the code.

5. Can I drive my Buick with the OBDII code B0228 present?

- It is generally safe to drive with the B0228 code, but it is recommended to address the issue promptly to prevent further HVAC system malfunctions.

6. How much does it cost to repair OBDII code B0228 in a Buick?

- The cost of repairing the B0228 code can vary depending on the exact cause of the issue, but it may involve parts and labor costs ranging from $100 to $300 or more.

7. Will resetting the OBDII code B0228 make it go away permanently?

- Resetting the code may temporarily clear it, but if the underlying issue causing the code is not fixed, it is likely to return.

8. Can a DIY enthusiast fix the OBDII code B0228 in a Buick?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the B0228 code by following repair guides and using the necessary replacement parts.

9. Is the OBDII code B0228 specific to Buick vehicles only?

- The code B0228 related to the Left Recirculate Position Feedback Circuit is specific to Buick vehicles and may not apply to other car makes and models.

10. How long does it typically take to repair OBDII code B0228 in a Buick?

- The repair time for the B0228 code can vary based on the exact cause of the issue and the expertise of the technician, but it generally takes around 1-2 hours to diagnose and fix the problem.