AutoCodes – Chevrolet – B0150 Chevrolet

B0150 Chevrolet Code - Air Flow Position Feedback #3 Circuit Malfunction

Quick Answer

The actuators operate using 5 circuits. Common causes include Faulty Auxiliary Mode Actuator, Auxiliary Mode Actuator harness is open or shorted, Auxiliary Mode 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: B0150 Chevrolet indicates Air Flow Position Feedback #3 Circuit Malfunction.
Common causes: Common causes include Faulty Auxiliary Mode Actuator, Auxiliary Mode Actuator harness is open or shorted, Auxiliary Mode 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 1,637

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 B0150 Chevrolet Description

The actuators operate using 5 circuits. A 5-volt reference, low reference, signal circuit and two bi-directional 0 or 12 volt control circuits. The Heating, Ventilation, and Air Conditioning (HVAC) Control Module supplies a low reference and 5-volt reference to the potentiometer. The HVAC control module monitors the voltage drop across the potentiometer on the door position signal circuit. As the actuator door changes position the door position signal circuit voltage also changes. The two bi-directional control circuits enable the actuator to operate. Both circuits are set to 0 volts when the HVAC control module detects, from the feedback potentiometer, that the actuator is in the desired position. In order to move the actuator, the HVAC control module switches the appropriate control circuit to 12 volts.

OBDII Code B0150 Chevrolet - Air Flow Position Feedback #3 Circuit Malfunction - AutoCodes.com — B0150 Chevrolet Code - Air Flow Position Feedback #3 Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B0150 Chevrolet?

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

How to Fix the DTC B0150 Chevrolet?

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 B0150 Chevrolet 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 B0150 Chevrolet code?

Need more information on how to fix the B0150 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0150 Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 B0150 Chevrolet Code

1. What are the common symptoms of OBDII code B0150 for Chevrolet related to Air Flow Position Feedback #3 Circuit Malfunction?

- Common symptoms include poor engine performance, reduced fuel efficiency, and the illumination of the Check Engine Light.

2. What are the possible causes of the B0150 code in a Chevrolet, indicating Air Flow Position Feedback #3 Circuit Malfunction?

- Possible causes include a faulty air flow sensor, damaged wiring or connectors, a dirty air filter, or a problem with the Engine Control Module (ECM).

3. How can I diagnose the B0150 code in my Chevrolet to pinpoint the issue with Air Flow Position Feedback #3 Circuit Malfunction?

- Diagnose the code by inspecting the air flow sensor, checking the wiring and connectors for damage, cleaning or replacing the air filter, and using an OBDII scanner to read the code.

4. Can I continue driving my Chevrolet with the B0150 code indicating Air Flow Position Feedback #3 Circuit Malfunction?

- It is not recommended to continue driving with this code as it can lead to further engine damage and decreased performance. Address the issue promptly.

5. How can I repair the B0150 code in my Chevrolet related to Air Flow Position Feedback #3 Circuit Malfunction?

- Repair options include replacing the air flow sensor, repairing damaged wiring or connectors, cleaning or replacing the air filter, and resetting the ECM after the repair.

6. Will resetting the Check Engine Light after repairing the B0150 code in my Chevrolet solve the issue permanently?

- Resetting the Check Engine Light is a good practice, but it does not guarantee a permanent solution. Ensure that the root cause of the code has been properly addressed.

7. Are there any DIY tips for troubleshooting the B0150 code in my Chevrolet before seeking professional help?

- DIY tips include checking the air flow sensor for debris, inspecting wiring and connectors for damage, cleaning or replacing the air filter, and using an OBDII scanner to reset the code.

8. How much can I expect to pay for professional repairs related to the B0150 code in my Chevrolet?

- Repair costs for the B0150 code can vary depending on the exact issue, but expect to pay anywhere from $100 to $500 for parts and labor.

9. Can a faulty air flow sensor trigger other OBDII codes in my Chevrolet besides B0150 for Air Flow Position Feedback #3 Circuit Malfunction?

- Yes, a faulty air flow sensor can trigger other codes related to air flow, fuel mixture, and engine performance issues. It is important to address the root cause promptly.

10. Is it possible to prevent the B0150 code in my Chevrolet related to Air Flow Position Feedback #3 Circuit Malfunction from occurring again in the future?

- Regular maintenance, such as replacing the air filter as recommended, keeping the air flow sensor clean, and addressing any engine performance issues promptly, can help prevent the recurrence of this code.