Engine-Codes.com
Engine-Codes – Chevrolet – B374A:61 Chevrolet

B374A:61 Chevrolet Code - Air Flow Control Position Feedback Circuit Stuck

Quick Answer

The B374A:61 diagnostic trouble code (DTC) in a Chevrolet vehicle indicates a problem with the Air Flow Control Position Feedback Circuit being stuck. Common causes include Faulty air flow control position sensor, Damaged or corroded wiring in the feedback circuit, ECM malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B374A:61 Chevrolet indicates Air Flow Control Position Feedback Circuit Stuck.
Common causes
Common causes include Faulty air flow control position sensor, Damaged or corroded wiring in the feedback circuit, ECM malfunction.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B374A:61 Chevrolet Description

The B374A:61 diagnostic trouble code (DTC) in a Chevrolet vehicle indicates a problem with the Air Flow Control Position Feedback Circuit being stuck. This code is specifically related to the air flow control system, which plays a crucial role in regulating the amount of air entering the engine for combustion. The position feedback circuit is responsible for sending signals to the engine control module (ECM) to ensure the proper air flow is maintained.

OBDII Code B374A:61 Chevrolet - Air Flow Control Position Feedback Circuit Stuck
B374A:61 Chevrolet Code - Air Flow Control Position Feedback Circuit Stuck

Common Causes of B374A:61 Chevrolet

  1. Faulty air flow control position sensor
  2. Damaged or corroded wiring in the feedback circuit
  3. ECM malfunction
  4. Poor electrical connections
  5. Environmental factors such as moisture or debris affecting sensor operation

Symptoms of B374A:61 Chevrolet

  1. Decreased engine power
  2. Rough idling or stalling
  3. Hesitation during acceleration
  4. Poor fuel efficiency
  5. Emissions issues

How to Fix B374A:61 Chevrolet

  1. Check and repair any damaged wiring in the air flow control position feedback circuit.
  2. Test the air flow control position sensor for proper operation and replace if necessary.
  3. Inspect and clean electrical connections to ensure a secure connection.
  4. Reset the ECM to clear the DTC and monitor for any recurring issues.
  5. Perform a test drive to verify that the air flow control system is functioning correctly.

Cost to Fix B374A:61 Chevrolet

The cost of repairing a B374A:61 code in a Chevrolet vehicle can vary depending on the extent of the issue and the specific parts needed for repair. In general, the cost of parts for this repair may range from $100 to $300, with additional labor costs ranging from $100 to $300. Overall, the total cost of addressing this issue could range from $200 to $600. It's important to note that labor rates and part prices can fluctuate based on location and the specific auto repair shop. It's advisable to obtain a personalized cost estimate from a qualified mechanic to get an accurate idea of the total repair expenses.

Need more information about the B374A:61 Chevrolet code?

Need more information on how to fix the B374A:61 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B374A:61 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

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 B374A:61 Chevrolet Code

1. What does the OBDII code B374A:61 mean on a Chevrolet?

The code B374A:61 indicates an issue with the Air Flow Control Position Feedback Circuit, specifically that it is stuck or not responding as expected.

2. What are the symptoms of the B374A:61 code in a Chevrolet?

Common symptoms include inconsistent airflow from the vents, inability to change vent modes, unusual noises from the HVAC system, or a climate control system that doesn’t respond properly.

3. What causes the B374A:61 code to appear on a Chevrolet?

This code is typically caused by a malfunctioning air flow control actuator, a stuck or misaligned blend door, wiring issues in the feedback circuit, or a fault in the HVAC control module.

4. Can I drive my Chevrolet with the B374A:61 code?

Yes, the vehicle is generally safe to drive, but you may experience discomfort due to improper climate control or vent operation.

5. How can I diagnose the B374A:61 code in my Chevrolet?

Diagnosis involves checking for obstructions in the blend door, testing the air flow control actuator, inspecting wiring and connections in the feedback circuit, and scanning the HVAC control module for additional codes.

6. How do I fix the B374A:61 code on my Chevrolet?

Repairs may include replacing the air flow control actuator, clearing obstructions in the blend door, fixing damaged wiring, or reprogramming or replacing the HVAC control module.

7. How much does it cost to repair the B374A:61 code?

The repair cost varies but typically ranges from $150 to $400, depending on whether you need to replace the actuator or fix wiring issues.

8. Can a software update fix the B374A:61 code?

In some cases, a software update for the HVAC control module may resolve the issue if the problem is due to a software-related glitch.

9. What tools are needed to fix the B374A:61 code?

You’ll need a scan tool that can read HVAC codes, a multimeter for testing electrical circuits, and basic hand tools to access and replace the air flow control actuator.

10. Is the B374A:61 code covered under warranty?

It depends on your vehicle’s warranty coverage. If your Chevrolet is still under a bumper-to-bumper or HVAC system warranty, this repair may be covered.

Discuss the causes and fixes for B374A:61 Chevrolet OBDII Code

Submit a New Comment

Code B374A:61 Chevrolet comments

No comments found for this page.