AutoCodes – Generic – C0379:58

C0379:58 Code - Front Axle Switch Circuit System Performance

Quick Answer

The front axle control circuit consists of an electric motor actuator that engages and disengages the front axle. Common causes include Faulty Front Axle Engagement Actuator, Front Axle Engagement Actuator harness is open or shorted, Front Axle Engagement Actuator circuit poor electrical connection. 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: C0379:58 indicates Front Axle Switch Circuit System Performance.
Common causes: Common causes include Faulty Front Axle Engagement Actuator, Front Axle Engagement Actuator harness is open or shorted, Front Axle Engagement Actuator circuit poor electrical connection.
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.

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Code Popularity 445

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 11, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0379:58 Description

The front axle control circuit consists of an electric motor actuator that engages and disengages the front axle. The front axle engagement actuator consists of a permanent magnetic motor, a worm gear-controlled plunger, a front axle switch, and an electronic control circuit within the actuator assembly.
The front axle engagement actuator contains the following circuits: A Run/Crank Ignition 1 Voltage circuit, a Four-Wheel Drive Wheel Lock Indicator circuit, a Front Axle Actuator Control circuit, and a ground circuit.
When a shift to 4WD Auto, 4WD High, or 4WD Low is requested, the Transfer Case Control Module engages the front axle by grounding the front axle actuator control circuit through a current limiting driver.
5 s after a range change, the transfer case control module compares the commanded state of the front axle (Front Axle Engagement Actuator Command parameter) to the monitored state of the front axle (Front Axle Feedback Switch parameter). If the command state differs from the monitored state for more than a predetermined amount of time, the Diagnostic Trouble Code (DTC) sets.

OBDII Code C0379:58 - Front Axle Switch Circuit System Performance - AutoCodes.com — C0379:58 Code - Front Axle Switch Circuit System Performance

What does this mean?

What are the Possible Causes of the DTC C0379:58?

Faulty Front Axle Engagement Actuator
Front Axle Engagement Actuator harness is open or shorted
Front Axle Engagement Actuator circuit poor electrical connection
Faulty Transfer Case Control Module

How to Fix the DTC C0379:58?

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 C0379:58 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.

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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 C0379:58 Code

1. What does OBDII code C0379:58 mean?

Code C0379:58 indicates a performance issue in the front axle switch circuit, often related to the electronic control system for engaging or disengaging the front axle.

2. What are the common symptoms of code C0379:58?

Common symptoms include the inability to shift into or out of four-wheel drive, illuminated warning lights, and possible drivetrain noise.

3. What causes code C0379:58?

Causes may include faulty wiring, a damaged front axle switch, a malfunctioning actuator, or issues with the transfer case control module.

4. Can I drive my vehicle with code C0379:58 present?

While the vehicle may still be drivable, it may not engage four-wheel drive properly, which can affect traction and performance in off-road or slippery conditions.

5. How can I diagnose code C0379:58?

Use a scan tool to confirm the code, visually inspect wiring and connectors for damage, and test the front axle switch and actuator for proper operation.

6. What repairs are common for code C0379:58?

Repairs may include replacing the front axle switch, repairing damaged wiring, replacing the actuator, or reprogramming the transfer case control module.

7. How much does it cost to fix code C0379:58?

Repair costs can vary, but replacing a front axle switch or actuator typically ranges from $100 to $400, depending on labor and parts.

8. Can a low battery cause code C0379:58?

Yes, low voltage or battery-related issues can sometimes cause circuit performance problems, including triggering this code.

9. How do I prevent code C0379:58 from recurring?

Regularly inspect and maintain the four-wheel drive system, ensure wiring and connectors are secure, and avoid exposing components to excessive water or debris.

10. Is C0379:58 specific to certain vehicle brands or models?

This code is commonly found in vehicles equipped with electronic four-wheel drive systems, such as certain GM or Chevrolet models, but can appear in other brands as well.