AutoCodes – Cadillac – B0228 Cadillac

B0228 Cadillac 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 Cadillac 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 4,290

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

What does this mean?

What are the Possible Causes of the DTC B0228 Cadillac?

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 Cadillac?

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 Cadillac 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 Cadillac Code

1. What are the common symptoms of OBDII code B0228 in a Cadillac 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 switch between fresh and recirculated air.

2. What are the possible causes of OBDII code B0228 in a Cadillac?

- The code B0228 in a Cadillac can be triggered by a faulty recirculation door actuator, damaged wiring or connectors, or a malfunctioning HVAC control module.

3. How can I diagnose the issue causing OBDII code B0228 in my Cadillac?

- Diagnosis involves checking the recirculation door actuator for proper operation, inspecting the wiring and connectors for damage, and using a scan tool to communicate with the HVAC control module for error codes.

4. Can I repair OBDII code B0228 in my Cadillac at home?

- Repairing code B0228 may require some mechanical knowledge and tools. It typically involves replacing the faulty recirculation door actuator, repairing damaged wiring or connectors, and clearing the trouble codes with a scan tool.

5. Are there any tips for preventing OBDII code B0228 in a Cadillac?

- Regular maintenance of the HVAC system, checking for any unusual noises or air conditioning issues, and addressing them promptly can help prevent the recurrence of code B0228 in a Cadillac.

6. How serious is OBDII code B0228 in a Cadillac?

- While code B0228 may not cause immediate harm to the vehicle, it can affect the comfort and functionality of the HVAC system. It is recommended to address the issue to ensure proper operation of the climate control system.

7. Is it safe to continue driving with OBDII code B0228 in a Cadillac?

- It is generally safe to drive with code B0228, but it is advisable to address the issue as soon as possible to prevent further damage to the HVAC system and ensure optimal comfort while driving.

8. Can OBDII code B0228 in a Cadillac cause other problems if left unattended?

- Ignoring code B0228 can lead to potential issues with the climate control system, affecting the overall comfort and functionality of the HVAC system in the Cadillac.

9. How long does it typically take to repair OBDII code B0228 in a Cadillac?

- The repair time for code B0228 can vary depending on the exact cause of the issue and the expertise of the person performing the repair. It may take a few hours to a half-day to diagnose and fix the problem.

10. Is it recommended to reset the OBDII code B0228 in a Cadillac after repairing the issue?

- Yes, it is important to reset the trouble codes using a scan tool after repairing the underlying problem causing code B0228. This ensures that the issue has been successfully addressed and allows for proper monitoring of the system.