Engine-CodesGeneric – C0379:08

C0379:08 Code - Front Axle Switch Circuit Signal Invalid

Quick Answer

The C0379:08 code indicates that there is an issue with the front axle switch circuit signal in the vehicle. Common causes include Faulty front axle switch, Damaged wiring or connectors in the circuit, Malfunctioning control module. 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
C0379:08 indicates Front Axle Switch Circuit Signal Invalid.
Common causes
Common causes include Faulty front axle switch, Damaged wiring or connectors in the circuit, Malfunctioning control module.
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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code C0379:08 Description

The C0379:08 code indicates that there is an issue with the front axle switch circuit signal in the vehicle. This means that the signal being sent from the front axle switch to the vehicle's computer system is invalid or not within the expected parameters. The front axle switch is an essential component in the vehicle's four-wheel-drive system, responsible for engaging and disengaging the front axle as needed. When the front axle switch circuit signal is invalid, it can lead to problems with the vehicle's four-wheel-drive system, potentially affecting its performance and drivability.

OBDII Code C0379:08 - Front Axle Switch Circuit Signal Invalid
C0379:08 Code - Front Axle Switch Circuit Signal Invalid

Common Causes of C0379:08

  1. Faulty front axle switch
  2. Damaged wiring or connectors in the circuit
  3. Malfunctioning control module
  4. Issues with the vehicle's computer system
  5. Corrosion or water damage in the front axle switch circuit

Symptoms of C0379:08

  1. Difficulty engaging or disengaging four-wheel drive
  2. Illumination of the four-wheel-drive warning light on the dashboard
  3. Unusual noises coming from the front axle
  4. Poor traction or stability in slippery conditions
  5. Inability to switch between two-wheel drive and four-wheel drive modes

How to Fix C0379:08

  1. Diagnose the specific cause of the invalid signal using a diagnostic scanner
  2. Inspect the front axle switch, wiring, and connectors for any damage or corrosion
  3. Test the control module and computer system for any faults
  4. Replace the front axle switch if it is found to be faulty
  5. Clear the diagnostic trouble codes and test the four-wheel-drive system for proper operation

Cost to Fix C0379:08

The typical repair costs for addressing a C0379:08 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. Generally, the cost of parts such as a front axle switch can range from $100 to $300, while labor costs can range from $150 to $300. Overall, the total repair cost for resolving this issue could be between $250 and $600. It is important to consider that labor rates can vary based on location, vehicle make and model, and other factors, so it is advisable to obtain a personalized estimate from a trusted auto repair shop.

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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.

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