P279C 2017 Chevrolet Silverado Code - Four Wheel Drive Neutral Range Performance
Quick Answer
The P279C diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado relates to the Four Wheel Drive Neutral Range Performance. Common causes include Faulty neutral range switch, Wiring issues or electrical connections related to the four-wheel-drive system, Malfunctioning transfer case 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
- P279C 2017 Chevrolet Silverado indicates Four Wheel Drive Neutral Range Performance.
- Common causes
- Common causes include Faulty neutral range switch, Wiring issues or electrical connections related to the four-wheel-drive system, Malfunctioning transfer case 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.
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Code P279C 2017 Chevrolet Silverado Description
The P279C diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado relates to the Four Wheel Drive Neutral Range Performance. This code indicates that there is an issue with the neutral range in the four-wheel-drive system, affecting the vehicle's ability to engage or disengage the four-wheel-drive mode properly. The neutral range is a crucial component in the four-wheel-drive system, allowing the vehicle to transition between two-wheel-drive and four-wheel-drive modes seamlessly.
Common Causes of P279C 2017 Chevrolet Silverado
- Faulty neutral range switch
- Wiring issues or electrical connections related to the four-wheel-drive system
- Malfunctioning transfer case control module
- Mechanical issues with the transfer case
- Software or programming issues in the vehicle's control modules
Symptoms of P279C 2017 Chevrolet Silverado
- Difficulty engaging or disengaging four-wheel-drive mode
- Erratic shifting between two-wheel-drive and four-wheel-drive modes
- Poor traction and stability in off-road or slippery road conditions
- Jerky or rough driving experience
- Illumination of the Four-Wheel Drive warning light on the dashboard
How to Fix P279C 2017 Chevrolet Silverado
- Begin by conducting a thorough diagnosis of the four-wheel-drive system to pinpoint the exact cause of the issue.
- Inspect the neutral range switch and wiring for any signs of damage or corrosion, replacing any faulty components as needed.
- Check the transfer case control module for proper operation and reprogram or replace it if necessary.
- Inspect the transfer case for any mechanical issues, such as worn components or damaged seals, and repair or replace them accordingly.
- Clear the DTC from the vehicle's computer system and test the four-wheel-drive system to ensure proper functionality.
Cost to Fix P279C 2017 Chevrolet Silverado
The cost of repairing the Four Wheel Drive Neutral Range Performance issue can vary depending on the specific cause of the problem and the extent of the repairs needed. In general, the cost of parts and labor for this repair can range from $200 to $800. However, it is essential to note that diagnostic time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It is advisable to check with local auto repair shops for a more accurate estimate based on your specific circumstances.
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Frequently Asked Questions about P279C 2017 Chevrolet Silverado Code
1. What does the OBDII code P279C mean for a 2017 Chevrolet Silverado?
P279C indicates an issue with the Four-Wheel Drive (4WD) Neutral Range Performance, meaning the transfer case system is not functioning as expected when shifting into or operating in neutral.
2. What are the common symptoms of the P279C code?
Symptoms may include the 4WD system not engaging properly, the transfer case stuck in neutral, warning lights on the dashboard, or the vehicle failing to shift into or out of 4WD modes.
3. What causes the P279C code on a 2017 Chevrolet Silverado?
Possible causes include faulty transfer case motor or encoder, damaged wiring or connectors, a malfunctioning transfer case control module (TCCM), or mechanical issues within the transfer case.
4. Can I drive my 2017 Silverado with the P279C code?
Driving with this code may be risky if the transfer case is stuck in neutral or if the 4WD system is malfunctioning, potentially leading to a loss of traction or drivability issues.
5. How is the P279C code diagnosed?
A mechanic will typically scan for codes, inspect the transfer case motor and wiring, test the transfer case control module, and check for mechanical damage inside the transfer case.
6. What repairs can fix the P279C code?
Repairs may involve replacing the transfer case motor or encoder, repairing damaged wiring, reprogramming or replacing the transfer case control module, or servicing the transfer case.
7. How much does it cost to repair the P279C code on a 2017 Chevrolet Silverado?
Repair costs can vary widely but may range from $150 for minor wiring repairs to over $1,000 if the transfer case motor or module needs replacement.
8. Can a low battery cause the P279C code?
Yes, a weak or low battery can disrupt communication between the transfer case control module and the motor, potentially triggering this code.
9. How can I prevent the P279C code from occurring again?
Regular maintenance of the 4WD system, checking for worn or damaged wiring, and keeping the transfer case fluid at the proper level can help prevent the issue.
10. Does the P279C code require reprogramming the transfer case control module?
In some cases, reprogramming the TCCM may resolve the issue if the problem is related to software glitches or incorrect calibration.
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