AutoCodes – Generic – B0226

B0226 Code - Recirculate Position Command Circuit High

Quick Answer

Stepper motors are used for temperature regulation, air distribution control and recirculation door control. 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: B0226 indicates Recirculate Position Command Circuit High.
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 2,755

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 B0226 Description

Stepper motors are used for temperature regulation, air distribution control and recirculation door control. With the switches and dials on the HVAC controls, air temperature door position, mode door position and recirculation door position can be selected. The selected values are passed to the Heating, Ventilation, and Air Conditioning (HVAC) Control Module via serial data. The HVAC control module supplies a 12 V reference voltage to the stepper motors and energizes the 4 stepper motor coils with a pulsed ground signal. The stepper motors move the appropriate doors into the calculated positions, in order to reach the desired positions.

OBDII Code B0226 - Recirculate Position Command Circuit High - AutoCodes.com — B0226 Code - Recirculate Position Command Circuit High

What does this mean?

What are the Possible Causes of the DTC B0226?

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 B0226?

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 B0226 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.

Need more information about the B0226 code?

Need more information on how to fix the B0226 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0226 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B0226 Buick — Recirculate Position Command Circuit High
B0226 Cadillac — Recirculate Position Command Circuit High
B0226 Chevrolet — Recirculate Position Command Circuit High
B0226 GMC — Recirculate Position Command Circuit High

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 B0226 Code

1. What are the common symptoms of OBDII code B0226 (Recirculate Position Command Circuit High)?

- Common symptoms include the inability to control the recirculation of air within the vehicle's HVAC system, incorrect air distribution, and potential issues with the air conditioning system.

2. What could cause the OBDII code B0226 to trigger?

- The code B0226 may be triggered by a malfunction in the recirculate position command circuit, which could be caused by wiring issues, a faulty recirculation door actuator, or a problem with the HVAC control module.

3. How can I diagnose the OBDII code B0226?

- Diagnosis typically involves using a scan tool to retrieve the code, inspecting the recirculation door actuator and its wiring for any visible damage, and testing the HVAC control module for proper operation.

4. What are the repair options for OBDII code B0226?

- Repair options may include repairing or replacing damaged wiring, replacing the recirculation door actuator if faulty, or reprogramming the HVAC control module as needed.

5. Can I continue to drive my vehicle with OBDII code B0226?

- While the vehicle may still be operable with this code present, it is recommended to address the issue promptly to ensure proper functionality of the HVAC system and to prevent potential long-term damage.

6. How much does it cost to repair OBDII code B0226?

- The cost of repairing OBDII code B0226 can vary depending on the underlying cause of the issue, the required parts, and labor costs. It is advisable to consult with a professional mechanic for an accurate estimate.

7. Are there any DIY tips for troubleshooting OBDII code B0226?

- DIY troubleshooting tips may include checking fuses related to the HVAC system, inspecting wiring connections for any loose or damaged wires, and ensuring the recirculation door actuator moves freely without obstruction.

8. Will resetting the OBDII code B0226 make it go away permanently?

- Resetting the code may temporarily clear it, but if the underlying issue causing the code to trigger is not addressed, the code is likely to return. It is essential to diagnose and repair the root cause of the problem.

9. Can extreme weather conditions affect the likelihood of OBDII code B0226 being triggered?

- Extreme temperature changes and humidity levels can potentially impact the HVAC system's components, including the recirculation door actuator, which may increase the likelihood of OBDII code B0226 being triggered.

10. Is OBDII code B0226 specific to certain car makes and models?

- OBDII code B0226 can be found in various car makes and models equipped with an OBDII system. However, the specific repair procedures and components involved may vary depending on the vehicle manufacturer.