Engine-CodesLincoln – P0979 Lincoln

P0979 Lincoln Code - Shift Solenoid 'C' Control Circuit Low

Quick Answer

The P0979 diagnostic trouble code for Lincoln vehicles indicates a fault in the Shift Solenoid 'C' control circuit. Common causes include Faulty shift solenoid 'C', Wiring or electrical 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 Lincoln indicates Shift Solenoid 'C' Control Circuit Low.
Common causes
Common causes include Faulty shift solenoid 'C', Wiring or electrical 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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0979 Lincoln Description

The P0979 diagnostic trouble code for Lincoln vehicles indicates a fault in the Shift Solenoid 'C' control circuit. The shift solenoid is a vital component of the transmission system that is responsible for controlling the flow of transmission fluid, which in turn, controls the shifting of gears. When the control circuit for Shift Solenoid 'C' is detected to be operating at a low voltage level, it signifies that there is an issue with the solenoid's ability to function properly. This could lead to problems with gear shifting, causing the vehicle to experience issues such as harsh shifting, delayed shifting, or the inability to shift gears at all.

OBDII Code P0979 Lincoln - Shift Solenoid 'C' Control Circuit Low
P0979 Lincoln Code - Shift Solenoid 'C' Control Circuit Low

Common Causes of P0979 Lincoln

  1. Faulty shift solenoid 'C'
  2. Wiring or electrical issues in the control circuit
  3. Low transmission fluid levels
  4. Mechanical problems in the transmission system
  5. Faulty transmission control module

Symptoms of P0979 Lincoln

  1. Harsh or delayed shifting
  2. Inability to shift gears
  3. Transmission slipping
  4. Illumination of the check engine light
  5. Decreased fuel efficiency

How to Fix P0979 Lincoln

  1. Diagnose the issue by using a scan tool to confirm the P0979 code and assess the condition of the shift solenoid 'C'.
  2. Inspect the wiring and connectors in the control circuit for any signs of damage or corrosion.
  3. Check the transmission fluid level and quality, topping up or replacing if necessary.
  4. Test the shift solenoid 'C' for proper function and replace if found to be faulty.
  5. Reset the vehicle's computer system to clear the trouble code and test drive the vehicle to ensure proper shifting functionality.

Cost to Fix P0979 Lincoln

The cost of repairing 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 replaced. On average, the cost of parts for this repair can range from $150 to $300, while labor costs can range from $100 to $200. Overall, the total repair cost could be anywhere from $250 to $500. It is important to note that these estimates are approximate and actual costs may vary based on factors such as location, vehicle make and model, and shop rates. It is recommended to obtain quotes from local auto repair shops to get a more accurate cost estimate for this repair.

Need more information about the P0979 Lincoln code?

Need more information on how to fix the P0979 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0979 Lincoln code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0979 Lincoln Code

No Frequently Asked Questions about P0979 Lincoln Code found.

Discuss the causes and fixes for P0979 Lincoln OBDII Code

Code P0979 Lincoln comments

No comments found for this page.