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C0379 2014 Chevrolet Silverado Code - Front Axle Switch Circuit

Quick Answer

The C0379 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado relates to the Front Axle Switch Circuit. Common causes include Faulty front axle actuator switch, Wiring issues or shorts in the front axle switch circuit, Corrosion or damage to electrical connectors related to the front axle switch. 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
C0379 2014 Chevrolet Silverado indicates Front Axle Switch Circuit.
Common causes
Common causes include Faulty front axle actuator switch, Wiring issues or shorts in the front axle switch circuit, Corrosion or damage to electrical connectors related to the front axle switch.
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 15, 2024
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Code C0379 2014 Chevrolet Silverado Description

The C0379 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado relates to the Front Axle Switch Circuit. This code indicates a problem with the front axle actuator switch circuit, which is responsible for engaging and disengaging the front axle in four-wheel drive systems. The front axle switch circuit plays a crucial role in the vehicle's drivetrain, allowing the driver to switch between two-wheel drive and four-wheel drive modes as needed.

OBDII Code C0379 2014 Chevrolet Silverado - Front Axle Switch Circuit
C0379 2014 Chevrolet Silverado Code - Front Axle Switch Circuit

Common Causes of C0379 2014 Chevrolet Silverado

  1. Faulty front axle actuator switch.
  2. Wiring issues or shorts in the front axle switch circuit.
  3. Corrosion or damage to electrical connectors related to the front axle switch.
  4. Defective front axle actuator.
  5. Issues with the transfer case control module.

Symptoms of C0379 2014 Chevrolet Silverado

  1. Difficulty switching between two-wheel drive and four-wheel drive modes.
  2. Front axle remains engaged or disengaged regardless of mode selected.
  3. Illumination of the "Service 4WD" light on the dashboard.
  4. Unusual noises coming from the front axle area.
  5. Reduced traction or handling in slippery or off-road conditions.

How to Fix C0379 2014 Chevrolet Silverado

  1. Begin by conducting a visual inspection of the front axle switch circuit, looking for any visible damage, corrosion, or loose connections.
  2. Test the front axle actuator switch and related components using a multimeter to check for continuity and proper operation.
  3. Replace any faulty components, such as the front axle actuator switch or damaged wiring, as needed.
  4. Clear the DTC from the vehicle's computer using a diagnostic scan tool.
  5. Test the vehicle to ensure that the front axle switch circuit is functioning correctly and that the issue has been resolved.

Cost to Fix C0379 2014 Chevrolet Silverado

The typical repair costs for addressing a C0379 Front Axle Switch Circuit code in a 2014 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, parts for this repair can range from $50 to $200, while labor costs can add an additional $100 to $200. Overall, the total cost for resolving this issue may fall between $150 and $400. However, it's important to note that these estimates are approximate, and actual costs may vary based on factors such as location, labor rates, and the extent of the repairs needed. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate tailored to your specific situation.

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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 C0379 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code C0379 in a 2014 Chevrolet Silverado?

- Common symptoms include the "Service 4WD" warning light illuminated on the dashboard, difficulty shifting into 4WD mode, or complete loss of 4WD functionality.

2. What does the OBDII code C0379 on a 2014 Chevrolet Silverado indicate?

- OBDII code C0379 specifically refers to a Front Axle Switch Circuit malfunction in the vehicle's 4WD system.

3. What are the possible causes of OBDII code C0379 in a 2014 Chevrolet Silverado?

- The common causes of OBDII code C0379 include a faulty front axle switch, damaged wiring or connectors in the circuit, or issues with the 4WD control module.

4. How can I diagnose the Front Axle Switch Circuit issue triggering code C0379 in my 2014 Chevrolet Silverado?

- Diagnosing the issue involves inspecting the front axle switch, checking the wiring and connectors for any damage, and using a diagnostic scanner to retrieve specific trouble codes.

5. Can I continue driving my 2014 Chevrolet Silverado with OBDII code C0379 present?

- It is not recommended to continue driving the vehicle with this code active, as it may lead to further damage to the 4WD system or potential safety issues.

6. Is it possible to reset the OBDII code C0379 in a 2014 Chevrolet Silverado without fixing the underlying issue?

- While you can clear the trouble code using a diagnostic scanner, it is crucial to address the root cause of the problem to prevent the code from reoccurring.

7. How much does it typically cost to repair OBDII code C0379 in a 2014 Chevrolet Silverado?

- The repair cost can vary depending on the specific issue causing the code, but it may involve replacing the front axle switch, repairing damaged wiring, or reprogramming the 4WD control module.

8. Are there any DIY tips for fixing the Front Axle Switch Circuit issue triggering code C0379 in a 2014 Chevrolet Silverado?

- DIY enthusiasts can start by inspecting the front axle switch and its connections for any visible damage or corrosion before proceeding with more advanced diagnostics or repairs.

9. Will fixing OBDII code C0379 in a 2014 Chevrolet Silverado require professional expertise?

- While some basic diagnostics and repairs can be done by DIYers, resolving complex issues related to the Front Axle Switch Circuit may require the expertise of a qualified mechanic or technician.

10. How important is it to address OBDII code C0379 promptly in a 2014 Chevrolet Silverado?

- It is essential to address this code promptly to ensure the proper functioning of the 4WD system and prevent potential drivability issues or damage to other components.

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