P279A 2017 Chevrolet Silverado Code - Four Wheel Drive High Range Performance
Quick Answer
The diagnostic trouble code P279A for a 2017 Chevrolet Silverado indicates an issue with the performance of the four-wheel-drive high range. Common causes include Faulty transfer case actuator, Wiring issues in the four-wheel-drive system, Malfunctioning sensors related to the high-range operation. 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
- P279A 2017 Chevrolet Silverado indicates Four Wheel Drive High Range Performance.
- Common causes
- Common causes include Faulty transfer case actuator, Wiring issues in the four-wheel-drive system, Malfunctioning sensors related to the high-range operation.
- 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 P279A 2017 Chevrolet Silverado Description
The diagnostic trouble code P279A for a 2017 Chevrolet Silverado indicates an issue with the performance of the four-wheel-drive high range. This code is triggered when the control module detects that the high-range operation is not functioning within the expected parameters. The four-wheel-drive system allows the vehicle to switch between two-wheel drive and four-wheel drive high range for better traction and control in off-road or slippery road conditions.
Common Causes of P279A 2017 Chevrolet Silverado
- Faulty transfer case actuator
- Wiring issues in the four-wheel-drive system
- Malfunctioning sensors related to the high-range operation
- Problems with the four-wheel-drive control module
- Low fluid levels in the transfer case
Symptoms of P279A 2017 Chevrolet Silverado
- Difficulty engaging or disengaging four-wheel-drive high range
- Illumination of the four-wheel-drive warning light on the dashboard
- Reduced traction or stability in slippery conditions
- Unusual noises coming from the drivetrain
- Limited power delivery to the wheels in four-wheel-drive high range
How to Fix P279A 2017 Chevrolet Silverado
- Perform a diagnostic scan to retrieve the trouble code and identify the specific cause of the issue.
- Inspect the transfer case actuator and related wiring for any signs of damage or malfunction.
- Test the sensors and control module to ensure they are functioning correctly.
- Replace any faulty components, such as the transfer case actuator or sensors, as needed.
- Clear the trouble code from the system and test the four-wheel-drive high range operation to verify that the issue has been resolved.
Cost to Fix P279A 2017 Chevrolet Silverado
The typical repair costs for addressing a four-wheel-drive high range performance issue can vary depending on the specific cause of the problem. In general, parts such as a transfer case actuator or sensors can range from $200 to $500, while labor costs can range from $150 to $300. Overall, the total repair costs for this issue could range from $350 to $800. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check local rates for a more accurate estimate.
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Frequently Asked Questions about P279A 2017 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P279A in a 2017 Chevrolet Silverado?
- Common symptoms may include difficulty engaging or disengaging the four-wheel drive high range, reduced performance in four-wheel drive mode, and an illuminated warning light on the dashboard.
2. What are some possible causes of OBDII code P279A in a 2017 Chevrolet Silverado?
- Possible causes could include a malfunctioning transfer case control module, wiring issues, a faulty actuator motor, or a problem with the transfer case itself.
3. How can I diagnose the OBDII code P279A in my 2017 Chevrolet Silverado?
- Diagnosing this code typically involves using an OBDII scanner to retrieve the code, checking for any other related codes, inspecting the transfer case components, and testing the transfer case control module.
4. Can I continue driving my 2017 Chevrolet Silverado with OBDII code P279A?
- It is not recommended to continue driving with this code as it may lead to further damage to the transfer case components and affect the performance of the four-wheel drive system.
5. How can I repair OBDII code P279A in my 2017 Chevrolet Silverado?
- Repairing this code may involve replacing the transfer case control module, repairing any damaged wiring, replacing the actuator motor, or servicing the transfer case as needed.
6. Is it possible to reset OBDII code P279A in a 2017 Chevrolet Silverado without repairs?
- While clearing the code may temporarily turn off the warning light, it is crucial to address the underlying issue causing the code to prevent further damage and ensure proper functioning of the four-wheel drive system.
7. Are there any DIY tips for troubleshooting OBDII code P279A in a 2017 Chevrolet Silverado?
- DIY tips may include checking the transfer case fluid level, inspecting for any visible damage to wiring or components, and ensuring proper connections to the transfer case control module.
8. How long does it typically take to repair OBDII code P279A in a 2017 Chevrolet Silverado?
- The repair time can vary depending on the exact cause of the code and the extent of the repairs needed. It is advisable to consult a professional mechanic for an accurate estimate.
9. Can extreme weather conditions contribute to triggering OBDII code P279A in a 2017 Chevrolet Silverado?
- Yes, extreme weather conditions such as extreme cold or heat can sometimes affect the performance of the transfer case components and potentially trigger this code.
10. Is it recommended to seek professional help for diagnosing and repairing OBDII code P279A in a 2017 Chevrolet Silverado?
- Yes, due to the complexity of the four-wheel drive system and the specific components involved, it is advisable to consult a qualified mechanic or dealership for accurate diagnosis and repair of this code.
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