AutoCodes – GMC – B0229 GMC

B0229 GMC Code - Recirculation Position Feedback Circuit Actuator Range/Performance

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 Recirculation Actuator, Recirculation Actuator harness is open or shorted, Recirculation 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: B0229 GMC indicates Recirculation Position Feedback Circuit Actuator Range/Performance.
Common causes: Common causes include Faulty Recirculation Actuator, Recirculation Actuator harness is open or shorted, Recirculation 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 4,448

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 10, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B0229 GMC 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 a stepper motor, a logic circuit, and a potentiometer. The potentiometer inside the door actuator allows the module to monitor the current position of the actuator drive shaft. The module supplies a 5-volt source voltage to the potentiometer on the 5-volt reference circuit. The module supplies ground to the potentiometer through the low reference circuit. 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 module converts the voltage value to a count value where 1-volt is approximately equal to 51 counts. The HVAC control module calibrates the travel range of the HVAC door actuators when it is initially powered by the battery positive voltage circuit. During calibration, the module commands the actuators in each direction until door travel is stopped. The module stores the minimum door positions and the maximum door positions of each actuator into memory. The total travel range is calculated by subtracting the minimum door position from the maximum door position.

OBDII Code B0229 GMC - Recirculation Position Feedback Circuit Actuator Range/Performance - AutoCodes.com — B0229 GMC Code - Recirculation Position Feedback Circuit Actuator Range/Performance

What does this mean?

What are the Possible Causes of the DTC B0229 GMC?

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

How to Fix the DTC B0229 GMC?

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 B0229 GMC 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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Need Help with the Code?

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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 B0229 GMC Code

1. What are common symptoms of OBDII code B0229 in a GMC vehicle?

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

2. What can cause the OBDII code B0229 to trigger in a GMC vehicle?

- The code B0229 is typically triggered by a faulty recirculation position feedback circuit actuator or issues with the actuator's range or performance.

3. How can I diagnose the cause of OBDII code B0229 in my GMC?

- Diagnosis involves checking the recirculation position feedback circuit actuator for proper function, inspecting wiring for damage, and ensuring there are no obstructions in the system.

4. Can I still drive my GMC with the OBDII code B0229 present?

- It is generally safe to drive with this code, but it is recommended to address the issue promptly to avoid potential HVAC system malfunctions.

5. What are the repair options for fixing OBDII code B0229 in a GMC?

- Repair options may include replacing the recirculation position feedback circuit actuator, repairing or replacing damaged wiring, and resetting the fault codes.

6. Is it necessary to visit a mechanic to fix OBDII code B0229 in my GMC?

- While some DIY enthusiasts may be able to address this issue, professional help is recommended for an accurate diagnosis and proper repair.

7. How much does it typically cost to repair OBDII code B0229 in a GMC?

- The cost of repair can vary depending on the extent of the issue, but it may range from $100 to $300 for parts and labor.

8. Can OBDII code B0229 cause any long-term damage to my GMC if left unresolved?

- Leaving this code unresolved can potentially lead to further HVAC system issues and discomfort while driving, but it is unlikely to cause major long-term damage.

9. Are there any preventive measures to avoid OBDII code B0229 in a GMC?

- Regular maintenance of the HVAC system, such as changing filters and keeping the system clean, can help prevent issues that may trigger this code.

10. How long does it typically take to repair OBDII code B0229 in a GMC?

- Depending on the specific cause of the code and the availability of parts, repairs for OBDII code B0229 can usually be completed within a few hours to a day.