P0979 Ford Code - Shift Solenoid 'C' Control Circuit Low
Quick Answer
The P0979 Ford diagnostic trouble code refers to an issue with the Shift Solenoid 'C' Control Circuit being detected as low. Common causes include Faulty shift solenoid 'C', Wiring issues in the control circuit, Malfunctioning transmission control module (TCM). 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 Ford indicates Shift Solenoid 'C' Control Circuit Low.
- Common causes
- Common causes include Faulty shift solenoid 'C', Wiring issues in the control circuit, Malfunctioning transmission control module (TCM).
- 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 Ford Description
The P0979 Ford diagnostic trouble code refers to an issue with the Shift Solenoid 'C' Control Circuit being detected as low. In an automatic transmission system, shift solenoids are responsible for controlling the flow of transmission fluid to engage or disengage gears. Solenoid 'C' specifically is involved in the shifting of gears within the transmission. When the control circuit for this solenoid is detected as low, it means that there is a problem with the electrical signal being sent to the solenoid, which can result in issues with gear shifting.
Common Causes of P0979 Ford
- Faulty shift solenoid 'C'
- Wiring issues in the control circuit
- Malfunctioning transmission control module (TCM)
- Electrical problems affecting the signal to the solenoid
- Low transmission fluid levels or contaminated fluid
Symptoms of P0979 Ford
- Harsh or delayed shifting
- Erratic shifting patterns
- Transmission slipping
- Transmission getting stuck in a particular gear
How to Fix P0979 Ford
- Diagnose the issue by using a scan tool to retrieve the trouble codes and conduct a visual inspection of the wiring and solenoid.
- Test the shift solenoid 'C' for proper operation and resistance using a multimeter.
- Replace the faulty shift solenoid 'C' if it fails the resistance test.
- Inspect and repair any damaged wiring or connectors in the control circuit.
- Clear the trouble codes and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0979 Ford
The typical repair costs for addressing a Shift Solenoid 'C' Control Circuit Low issue can range from $150 to $400, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to check with local auto repair shops to get a more accurate estimate for this repair.
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Frequently Asked Questions about P0979 Ford Code
1. What are the common symptoms of OBDII code P0979 in a Ford vehicle?
- Common symptoms include harsh or delayed shifting, transmission slipping, and illuminated Check Engine Light.
2. What does the OBDII code P0979 Shift Solenoid 'C' Control Circuit Low mean for a Ford vehicle?
- The code indicates that there is a low voltage condition in the control circuit of shift solenoid 'C' in the transmission.
3. What are the possible causes of the P0979 code in a Ford vehicle?
- Potential causes include a faulty shift solenoid 'C', damaged wiring or connectors in the solenoid circuit, low transmission fluid level, or a malfunctioning transmission control module.
4. How can I diagnose the P0979 code in my Ford vehicle?
- Diagnosing involves checking the transmission fluid level, inspecting the wiring and connectors for damage, testing the shift solenoid 'C' for proper operation, and scanning the vehicle's computer for related trouble codes.
5. Can I continue driving my Ford with the P0979 code present?
- It is not recommended to continue driving with the P0979 code as it can lead to further transmission damage and potential safety hazards. It's best to address the issue promptly.
6. How can I repair the Shift Solenoid 'C' Control Circuit Low issue in my Ford vehicle?
- Repair steps may include replacing the faulty shift solenoid 'C', repairing or replacing damaged wiring or connectors, ensuring proper transmission fluid levels, and resetting the trouble codes.
7. Is it possible to clear the P0979 code in a Ford vehicle without fixing the underlying issue?
- Clearing the code without addressing the root cause is not recommended, as the problem will likely persist and trigger the Check Engine Light again. It's best to fix the issue first.
8. How much does it typically cost to repair the P0979 code in a Ford vehicle?
- The cost of repairs can vary depending on the exact cause of the issue, but it may range from $200 to $600, including parts and labor.
9. Can I fix the P0979 code in my Ford vehicle myself, or do I need a professional mechanic?
- Depending on your skill level and access to tools, you may be able to address the issue yourself by following repair guides or consulting with professional help for more complex repairs.
10. How long does it usually take to repair the P0979 code in a Ford vehicle?
- The repair time can vary based on the specific cause of the issue and your experience level. Simple fixes like checking the fluid level may take minutes, while replacing a shift solenoid could take a few hours.
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