AutoCodes – GMC – B0413 GMC

B0413 GMC Code - Main Temperature Control Feedback Circuit

Quick Answer

The Heating, Ventilation, and Air Conditioning (HVAC) control module controls the HVAC door actuators to regulate the airflow through the HVAC system. Common causes include Faulty Drivers Air Temperature Actuator, Drivers Air Temperature Actuator harness is open or shorted, Drivers Air Temperature 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
B0413 GMC indicates Main Temperature Control Feedback Circuit.
Common causes
Common causes include Faulty Drivers Air Temperature Actuator, Drivers Air Temperature Actuator harness is open or shorted, Drivers Air Temperature 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 25,321
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 29, 2024
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Code B0413 GMC Description

The Heating, Ventilation, and Air Conditioning (HVAC) control module controls the HVAC door actuators to regulate the airflow through the HVAC system. Each actuator consists of an electric motor and a potentiometer. The module supplies a low reference and 5-volt reference source voltage to the potentiometer. The HVAC control module monitors the voltage drop across the potentiometer on the door position signal circuit. When the actuator shaft rotates, the voltage on the door position signal circuit changes. The control circuit uses either a 0, 2.5, or 5-volt signal to command the actuator movement. When the actuator is at rest, the control circuit value is 2.5 volts. A 0 or 5-volt control signal commands the actuator movement in opposite directions.
OBDII Code B0413 GMC - Main Temperature Control Feedback Circuit - AutoCodes.com
B0413 GMC Code - Main Temperature Control Feedback Circuit

What are the Possible Causes of the DTC B0413 GMC?

  • Faulty Drivers Air Temperature Actuator
  • Drivers Air Temperature Actuator harness is open or shorted
  • Drivers Air Temperature Actuator circuit poor electrical connection

How to Fix the DTC B0413 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0413 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 B0413 GMC code?

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Need Help with the Code?

Get the B0413 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC 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 B0413 GMC Code

1. What are the common symptoms of OBDII code B0413 GMC?

The common symptoms of OBDII code B0413 GMC include issues with the main temperature control system, such as inconsistent or incorrect temperature readings on the climate control panel.

2. What causes OBDII code B0413 GMC to be triggered?

OBDII code B0413 GMC is typically triggered when there is a malfunction in the main temperature control feedback circuit, which can be caused by a faulty temperature sensor, wiring issues, or a defective control module.

3. How serious is OBDII code B0413 GMC?

OBDII code B0413 GMC is not a critical issue that affects the drivability of the vehicle, but it can lead to discomfort due to improper temperature control inside the vehicle.

4. How can I diagnose OBDII code B0413 GMC?

Diagnosing OBDII code B0413 GMC involves using a diagnostic scan tool to retrieve the trouble code and then performing a thorough inspection of the main temperature control system components to identify the root cause of the issue.

5. What are the repair options for OBDII code B0413 GMC?

Repair options for OBDII code B0413 GMC may include replacing the faulty temperature sensor, repairing or replacing damaged wiring, or replacing the control module, depending on the specific cause of the issue.

6. Can I drive my vehicle with OBDII code B0413 GMC?

You can typically drive your vehicle with OBDII code B0413 GMC, but it is recommended to address the issue promptly to ensure proper functioning of the main temperature control system.

7. How much does it cost to repair OBDII code B0413 GMC?

The cost of repairing OBDII code B0413 GMC can vary depending on the underlying cause of the issue, the parts required for the repair, and the labor rates of the repair shop. It is advisable to obtain quotes from different service providers.

8. Can OBDII code B0413 GMC be fixed at home?

If you have the necessary tools, experience, and access to the appropriate replacement parts, you may be able to fix OBDII code B0413 GMC at home. However, it is recommended to seek professional help if you are unsure about the repair process.

9. Will OBDII code B0413 GMC reset on its own?

OBDII code B0413 GMC may not reset on its own even if the underlying issue is temporarily resolved. To clear the code from the vehicle's computer memory, you may need to use a diagnostic scan tool to reset the system.

10. How can I prevent OBDII code B0413 GMC from reoccurring?

To prevent OBDII code B0413 GMC from reoccurring, it is important to address any underlying issues promptly, perform regular maintenance on the main temperature control system, and ensure proper installation of components during repairs.

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