C0379 2016 Chevrolet Silverado Code - Front Axle Switch Circuit
Quick Answer
The C0379 code on a 2016 Chevrolet Silverado indicates a problem with the front axle switch circuit. Common causes include Faulty front axle switch, Damaged wiring or connectors in the front axle switch circuit, Corrosion or moisture in the front axle switch circuit. 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 2016 Chevrolet Silverado indicates Front Axle Switch Circuit.
- Common causes
- Common causes include Faulty front axle switch, Damaged wiring or connectors in the front axle switch circuit, Corrosion or moisture in the front axle switch circuit.
- 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 C0379 2016 Chevrolet Silverado Description
The C0379 code on a 2016 Chevrolet Silverado indicates a problem with the front axle switch circuit. The front axle switch is responsible for engaging and disengaging the front axle in four-wheel drive vehicles. When this circuit malfunctions, it can lead to issues with the vehicle's four-wheel drive system, affecting its performance and drivability.
Common Causes of C0379 2016 Chevrolet Silverado
- Faulty front axle switch.
- Damaged wiring or connectors in the front axle switch circuit.
- Corrosion or moisture in the front axle switch circuit.
- Issues with the front axle actuator.
- Electronic control module (ECM) failure.
Symptoms of C0379 2016 Chevrolet Silverado
- Difficulty engaging or disengaging four-wheel drive mode.
- Illumination of the four-wheel drive warning light on the dashboard.
- Unusual noises coming from the front axle area.
- Decreased traction and stability, especially in slippery conditions.
- Limited or no power to the front wheels in four-wheel drive mode.
How to Fix C0379 2016 Chevrolet Silverado
- Begin by diagnosing the specific cause of the C0379 code using a diagnostic scanner to pinpoint the exact issue.
- Inspect the front axle switch, wiring, and connectors for any signs of damage or corrosion. Replace any faulty components.
- Test the front axle actuator to ensure it is functioning correctly. Replace if necessary.
- Clear the trouble code from the vehicle's ECM using the diagnostic scanner.
- Test drive the vehicle to verify that the issue has been resolved and that the four-wheel drive system is functioning properly.
Cost to Fix C0379 2016 Chevrolet Silverado
The typical repair costs for addressing a C0379 code on a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue. On average, the parts required for this repair may range from $100 to $300, while labor costs can range from $150 to $400. However, it's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the shop's labor rates. It's recommended to consult with a professional mechanic for a more accurate cost estimate based on your specific situation. Labor rates at auto repair shops typically range from $80 to $150 per hour, but rates may differ at dealerships or in metropolitan areas.
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Frequently Asked Questions about C0379 2016 Chevrolet Silverado Code
1. What does the OBDII code C0379 mean on a 2016 Chevrolet Silverado?
C0379 indicates a problem with the front axle switch circuit, which is part of the four-wheel-drive system that controls the engagement of the front axle.
2. What are the common symptoms of code C0379 in a 2016 Silverado?
Symptoms may include the Service 4WD light turning on, failure to engage or disengage four-wheel drive, or unusual noises from the front axle.
3. What causes the C0379 code to appear?
Common causes include a faulty front axle switch, damaged wiring or connectors in the switch circuit, or an issue with the transfer case control module (TCCM).
4. How do I diagnose the C0379 code on a Chevrolet Silverado?
Start by inspecting the front axle switch and its wiring for damage or loose connections. Use a scan tool to monitor the TCCM and perform circuit continuity tests.
5. Can I continue driving my Silverado with the C0379 code?
While the truck may still be drivable, the four-wheel-drive system may not function correctly, which could be problematic in off-road or slippery conditions.
6. How can I fix the C0379 code on my Silverado?
Repairs may include replacing the front axle switch, repairing or replacing damaged wiring, or reprogramming or replacing the TCCM if necessary.
7. How much does it cost to repair the C0379 code?
Repair costs can vary but typically range from $100 to $300 for parts and labor, depending on whether the switch or wiring needs replacement.
8. Is the C0379 code specific to the 2016 Chevrolet Silverado?
No, this code can appear in other GM vehicles with a similar four-wheel-drive system, but the diagnosis and repair steps are specific to the vehicle model.
9. Can a dead battery cause the C0379 code to appear?
A low or dead battery can sometimes cause communication issues with the TCCM, potentially triggering this code. Ensure the battery is fully charged before further diagnosis.
10. Does the C0379 code always require part replacement?
Not always. The issue might be due to a loose or corroded connection in the circuit, which can often be resolved with cleaning or securing the connectors.
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