AutoCodes – Saturn – B0272 Saturn

B0272 Saturn Code - Air Flow Control 7 Circuit Open

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: B0272 Saturn indicates Air Flow Control 7 Circuit Open.
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 909

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 B0272 Saturn 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 B0272 Saturn - Air Flow Control 7 Circuit Open - AutoCodes.com — B0272 Saturn Code - Air Flow Control 7 Circuit Open

What does this mean?

What are the Possible Causes of the DTC B0272 Saturn?

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 B0272 Saturn?

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 B0272 Saturn 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 B0272 Saturn code?

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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 B0272 Saturn Code

1. What are common symptoms of OBDII code B0272 in a Saturn related to Air Flow Control 7 Circuit Open?

The common symptoms include rough idling, engine misfires, decreased fuel efficiency, and potential stalling of the vehicle.

2. What are the possible causes of OBDII code B0272 in a Saturn indicating Air Flow Control 7 Circuit Open?

The code may be triggered by issues such as a faulty air flow control sensor, damaged wiring or connectors in the air flow control circuit, or a problem with the air flow control actuator.

3. How can I diagnose the OBDII code B0272 in my Saturn for Air Flow Control 7 Circuit Open?

Diagnosing this code typically involves using a diagnostic scanner to retrieve the code, checking the air flow control circuit for any visible damage, and testing the sensor and actuator for proper functionality.

4. What are some repair tips for fixing OBDII code B0272 in a Saturn related to Air Flow Control 7 Circuit Open?

Repair tips may include replacing a faulty air flow control sensor, repairing damaged wiring or connectors in the circuit, and ensuring proper installation of the air flow control actuator.

5. Is it safe to drive my Saturn with the OBDII code B0272 indicating Air Flow Control 7 Circuit Open?

It is not recommended to drive the vehicle with this code active, as it can lead to poor engine performance and potential further damage if not addressed promptly.

6. Can I reset the OBDII code B0272 in my Saturn related to Air Flow Control 7 Circuit Open by disconnecting the battery?

While disconnecting the battery may clear the code temporarily, it is essential to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it cost to repair OBDII code B0272 in a Saturn for Air Flow Control 7 Circuit Open?

The cost of repair can vary depending on the exact cause of the code, but it may involve parts and labor expenses ranging from $100 to $500 or more.

8. Can a DIY enthusiast fix the OBDII code B0272 in a Saturn indicating Air Flow Control 7 Circuit Open?

Depending on your level of expertise, you may be able to diagnose and repair the issue yourself by following repair guides or consulting with a professional for guidance.

9. Will OBDII code B0272 in a Saturn for Air Flow Control 7 Circuit Open cause the check engine light to illuminate?

Yes, this code will trigger the check engine light to illuminate on the dashboard, indicating a problem with the air flow control circuit.

10. How can I prevent OBDII code B0272 in my Saturn related to Air Flow Control 7 Circuit Open from occurring in the future?

Regular maintenance, such as inspecting and replacing worn components, ensuring proper wiring connections, and addressing any engine performance issues promptly, can help prevent this code from reoccurring.