AutoCodes – GMC – B0150 GMC

B0150 GMC 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 GMC 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,073

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

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

What does this mean?

What are the Possible Causes of the DTC B0150 GMC?

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 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 B0150 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.

Need more information about the B0150 GMC code?

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

Need Help with the Code?

Get the B0150 GMC 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 GMC Code

1. What are the common symptoms of OBDII code B0150 GMC (Air Flow Position Feedback #3 Circuit Malfunction)?

- Common symptoms include poor engine performance, rough idling, stalling, and a decrease in fuel efficiency.

2. What are the possible causes of OBDII code B0150 GMC?

- The code B0150 GMC can be triggered by issues such as a faulty air flow sensor, wiring problems, or a defective engine control module.

3. How can I diagnose the OBDII code B0150 GMC?

- To diagnose the code B0150 GMC, you can use an OBDII scanner to read the code and check the air flow sensor and related wiring for any visible damage.

4. What are some repair tips for fixing OBDII code B0150 GMC?

- Repair tips include checking and repairing any damaged wiring, replacing the air flow sensor if necessary, and resetting the code using the OBDII scanner.

5. Can I drive my vehicle with OBDII code B0150 GMC?

- It is not recommended to drive your vehicle with the code B0150 GMC as it can lead to further engine damage and poor performance.

6. How much does it typically cost to repair OBDII code B0150 GMC?

- The cost of repairing the code B0150 GMC can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

7. Can I reset the OBDII code B0150 GMC on my own?

- Yes, you can reset the code B0150 GMC on your own using an OBDII scanner by clearing the code after fixing the underlying issue.

8. How urgent is it to address OBDII code B0150 GMC?

- It is important to address the code B0150 GMC promptly to prevent further damage to the engine and ensure optimal performance of your vehicle.

9. Is OBDII code B0150 GMC a common issue in GMC vehicles?

- While the code B0150 GMC may not be extremely common, it can occur in GMC vehicles with air flow sensor and circuitry issues.

10. Can a DIY enthusiast repair OBDII code B0150 GMC at home?

- Depending on your mechanical skills and experience, a DIY enthusiast may be able to repair the code B0150 GMC at home by following repair guides and using the necessary tools.