P0979 Mercury Code - Shift Solenoid 'C' Control Circuit Low
Quick Answer
The P0979 code for Mercury vehicles indicates a problem with the Shift Solenoid 'C' Control Circuit being detected as low. Common causes include Faulty shift solenoid, Damaged wiring or connectors, Transmission control module issues. 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 Mercury indicates Shift Solenoid 'C' Control Circuit Low.
- Common causes
- Common causes include Faulty shift solenoid, Damaged wiring or connectors, Transmission control module issues.
- 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 Mercury Description
The P0979 code for Mercury vehicles indicates a problem with the Shift Solenoid 'C' Control Circuit being detected as low. The shift solenoid is a crucial component in the transmission system that controls the flow of transmission fluid to engage different gears. In this case, when the control circuit for Shift Solenoid 'C' is detected as low, it means that there is an issue with the electrical signal being sent to the solenoid, affecting its ability to function properly.
Common Causes of P0979 Mercury
- Faulty shift solenoid
- Damaged wiring or connectors
- Transmission control module issues
- Low transmission fluid levels
- Electrical issues such as blown fuses or relays
Symptoms of P0979 Mercury
- Harsh or delayed shifting
- Erratic transmission behavior
- Transmission slipping
- Overheating transmission
- Illumination of the Check Engine Light
How to Fix P0979 Mercury
- Begin by diagnosing the specific cause of the issue using a scan tool to pinpoint the exact problem within the transmission system.
- Inspect the wiring and connectors related to the Shift Solenoid 'C' to check for any damage or corrosion. Repair or replace as necessary.
- Test the shift solenoid itself to determine if it is functioning correctly. Replace the solenoid if it is found to be faulty.
- Check the transmission control module for any issues or malfunctions. Repair or replace the module if needed.
- Clear the diagnostic trouble codes from the vehicle's computer and test drive the vehicle to ensure that the issue has been resolved.
Cost to Fix P0979 Mercury
The typical repair costs for addressing a Shift Solenoid 'C' Control Circuit Low issue can vary depending on the extent of the problem and the specific components that need to be repaired or replaced. On average, the cost for parts such as a new shift solenoid or transmission control module can range from $100 to $500, while labor costs can range from $150 to $300. Overall, a total repair cost for this issue could range from $250 to $800. It's essential to keep in mind that diagnostic time and labor rates can vary, so it's advisable to check with local auto repair shops for more accurate pricing information.
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