P0979 Cadillac Code - Shift Solenoid 'C' Control Circuit Low
Quick Answer
The P0979 diagnostic trouble code (DTC) in a Cadillac indicates a problem with the Shift Solenoid 'C' control circuit being detected as low. Common causes include Faulty Shift Solenoid 'C', Wiring or connector issues in the control circuit, 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 Cadillac indicates Shift Solenoid 'C' Control Circuit Low.
- Common causes
- Common causes include Faulty Shift Solenoid 'C', Wiring or connector issues in the control circuit, 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 Cadillac Description
The P0979 diagnostic trouble code (DTC) in a Cadillac indicates a problem with the Shift Solenoid 'C' control circuit being detected as low. The shift solenoid is a crucial component of the transmission system that helps regulate the flow of transmission fluid to engage the appropriate gear for smooth and efficient operation. 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, potentially leading to improper gear shifting and performance issues.
Common Causes of P0979 Cadillac
- Faulty Shift Solenoid 'C'
- Wiring or connector issues in the control circuit
- Low transmission fluid levels
- Transmission control module (TCM) malfunction
- Electrical system issues
Symptoms of P0979 Cadillac
- Erratic shifting patterns
- Harsh or delayed gear shifts
- Transmission slipping
- Illuminated Check Engine Light
- Decreased fuel efficiency
How to Fix P0979 Cadillac
- Perform a thorough diagnostic scan to confirm the P0979 code and identify the specific cause of the issue.
- Inspect the wiring and connectors in the Shift Solenoid 'C' control circuit for any damage or corrosion.
- Test the Shift Solenoid 'C' for proper functionality and replace if necessary.
- Check and top up transmission fluid levels if low.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0979 Cadillac
The cost of repairing a Shift Solenoid 'C' control circuit low issue in a Cadillac can vary depending on the specific cause of the problem and the labor rates in your area. On average, the parts for this repair can range from $100 to $300, while labor costs can be around $150 to $300. Overall, you can expect to pay anywhere from $250 to $600 for this repair at an auto repair shop. It's recommended to get quotes from different shops to find the best price for your specific situation.
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