P0979 2016 Chevrolet Silverado Code - Shift Solenoid Valve 3 Control Circuit Low Voltage
Quick Answer
The P0979 code in a 2016 Chevrolet Silverado indicates a problem with the Shift Solenoid Valve 3 Control Circuit, specifically detecting low voltage. Common causes include Faulty wiring or connectors in the shift solenoid circuit, Malfunctioning shift solenoid valve, Low transmission fluid levels. 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
- P0979 2016 Chevrolet Silverado indicates Shift Solenoid Valve 3 Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty wiring or connectors in the shift solenoid circuit, Malfunctioning shift solenoid valve, Low transmission fluid levels.
- 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 P0979 2016 Chevrolet Silverado Description
The P0979 code in a 2016 Chevrolet Silverado indicates a problem with the Shift Solenoid Valve 3 Control Circuit, specifically detecting low voltage. The shift solenoid valve is a crucial component in the transmission system that controls the flow of transmission fluid to engage the appropriate gear. In this case, the low voltage detected suggests an issue with the electrical circuit that controls the solenoid valve.
Common Causes of P0979 2016 Chevrolet Silverado
- Faulty wiring or connectors in the shift solenoid circuit
- Malfunctioning shift solenoid valve
- Low transmission fluid levels
- Defective transmission control module
- Electrical issues in the transmission system
Symptoms of P0979 2016 Chevrolet Silverado
- Harsh or delayed shifting
- Poor fuel efficiency
- Reduced acceleration
- Illuminated Check Engine Light
- Transmission slipping
How to Fix P0979 2016 Chevrolet Silverado
- Begin by conducting a thorough inspection of the shift solenoid valve 3 control circuit to check for any damaged wiring or connectors.
- Test the shift solenoid valve to determine if it is functioning correctly. If faulty, replace the solenoid valve.
- Check the transmission fluid levels and top up if necessary. Inspect for any leaks that may be causing low fluid levels.
- Scan the vehicle's computer system to identify any other potential codes or issues that may be related to the transmission problem.
- If the issue persists, consider seeking professional help from a certified mechanic or transmission specialist for further diagnosis and repair.
Cost to Fix P0979 2016 Chevrolet Silverado
The cost of repairing a P0979 code in a 2016 Chevrolet Silverado can vary depending on the exact cause of the issue. Replacing a shift solenoid valve can range from $150 to $300, while addressing wiring or connector issues may cost between $100 to $200. Additional costs for diagnostic testing, transmission fluid replacement, and labor should also be factored in. Overall, the total repair cost could range from $300 to $800 or more, depending on the extent of the repairs needed. It's recommended to obtain quotes from local auto repair shops to get a more accurate estimate based on your specific situation. Labor rates typically range from $80 to $150 per hour, but can vary based on location and shop rates.
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Frequently Asked Questions about P0979 2016 Chevrolet Silverado Code
1. What does the OBDII code P0979 mean on a 2016 Chevrolet Silverado?
P0979 indicates a "Shift Solenoid Valve 3 Control Circuit Low Voltage," meaning the vehicle's transmission control module (TCM) has detected low voltage in the circuit controlling shift solenoid 3.
2. What are the common symptoms of code P0979 on a 2016 Chevrolet Silverado?
Common symptoms include harsh or delayed shifting, failure to shift into certain gears, transmission overheating, or the vehicle entering limp mode.
3. What causes the P0979 code to appear on a Chevrolet Silverado?
Possible causes include a faulty shift solenoid, damaged wiring or connectors in the solenoid circuit, a malfunctioning TCM, or low transmission fluid.
4. Can low transmission fluid cause the P0979 code?
Yes, low transmission fluid can affect solenoid operation and cause the P0979 code to trigger.
5. How is the P0979 code diagnosed?
A mechanic will scan for additional codes, inspect wiring and connectors for damage, test the shift solenoid's resistance, and check the TCM for proper function.
6. Can I drive my 2016 Chevrolet Silverado with the P0979 code?
Driving with this code is not recommended, as it can lead to further transmission damage or unsafe driving conditions.
7. How do you fix the P0979 code on a Chevrolet Silverado?
Repairs may include replacing the faulty shift solenoid, repairing or replacing damaged wiring, cleaning or reconnecting corroded connectors, or reprogramming or replacing the TCM.
8. How much does it cost to fix the P0979 code on a 2016 Silverado?
Repair costs vary but may range from $150 to $400 for solenoid replacement, depending on parts and labor. Wiring or TCM repairs may cost more.
9. Can a dead battery cause the P0979 code to appear?
A dead or weak battery is unlikely to cause this specific code but may contribute to electrical issues if other symptoms are present.
10. How can I prevent the P0979 code from returning?
Regularly inspect the transmission system, maintain proper fluid levels, and address electrical issues promptly to prevent recurrence.
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