AutoCodes – Generic – B0268

B0268 Code - Air Flow Control 7 Circuit

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: B0268 indicates Air Flow Control 7 Circuit.
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 9,331

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 B0268 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 B0268 - Air Flow Control 7 Circuit - AutoCodes.com — B0268 Code - Air Flow Control 7 Circuit

What does this mean?

What are the Possible Causes of the DTC B0268?

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 B0268?

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 B0268 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 B0268 code?

Need more information on how to fix the B0268 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0268 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B0268 Buick — Air Flow Control 7 Circuit
B0268 Cadillac — Air Flow Control 7 Circuit
B0268 Chevrolet — Air Flow Control 7 Circuit
B0268 GMC — Air Flow Control 7 Circuit
B0268 Pontiac — Air Flow Control 7 Circuit
B0268 Saturn — Air Flow Control 7 Circuit

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 B0268 Code

1. What does the OBDII code B0268 mean?

B0268 refers to an issue in the Air Flow Control 7 Circuit, typically involving a malfunction in the electronic system that regulates airflow within the vehicle's HVAC system.

2. What are the common symptoms of the B0268 code?

Symptoms may include a lack of airflow from certain vents, inconsistent HVAC operation, or unusual noises coming from the ventilation system.

3. What causes the B0268 code to appear?

The code is often triggered by a faulty actuator, damaged wiring or connectors, or a failure in the HVAC control module.

4. Can I still drive my car with the B0268 code?

Yes, you can drive with this code, but the HVAC system may not function properly, leading to discomfort in extreme weather conditions.

5. How do I diagnose the B0268 code?

Start by visually inspecting the wiring and connectors for damage, then test the actuator and control module with a multimeter or diagnostic tool.

6. What tools are needed to fix the B0268 code?

You may need a multimeter, a scan tool, and basic hand tools to test and replace components within the affected circuit.

7. How much does it cost to repair the B0268 code?

Repair costs can range from $50 to $200, depending on whether the issue is a simple wiring fix or requires replacing an actuator or module.

8. Can I reset the B0268 code without fixing the problem?

You can clear the code with a diagnostic scanner, but it will likely return if the underlying issue is not addressed.

9. What happens if I ignore the B0268 code?

Ignoring the code can lead to further wear on HVAC components and reduced comfort due to improper airflow control.

10. Is the B0268 code specific to certain vehicle makes or models?

No, this code is a generic OBDII code, but the exact components and repair procedures may vary based on the vehicle's make and model.

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