Engine-Codes.com
Engine-Codes – Lincoln – C1979 Lincoln

C1979 Lincoln Code - IWE Solenoid Circuit Failure

Quick Answer

The C1979 diagnostic trouble code (DTC) for Lincoln vehicles specifically refers to a failure in the IWE (Integrated Wheel End) solenoid circuit. Common causes include Damaged wiring or connectors in the IWE solenoid circuit, Faulty IWE solenoid, Vacuum leak in the system. 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
C1979 Lincoln indicates IWE Solenoid Circuit Failure.
Common causes
Common causes include Damaged wiring or connectors in the IWE solenoid circuit, Faulty IWE solenoid, Vacuum leak in the system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 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 C1979 Lincoln Description

The C1979 diagnostic trouble code (DTC) for Lincoln vehicles specifically refers to a failure in the IWE (Integrated Wheel End) solenoid circuit. The IWE system is typically found in four-wheel-drive and all-wheel-drive vehicles and is responsible for engaging and disengaging the front wheel hubs to switch between two-wheel drive and four-wheel drive modes. The IWE solenoid is an essential component of this system, controlling the vacuum that engages or disengages the front wheel hubs.

OBDII Code C1979 Lincoln - IWE Solenoid Circuit Failure
C1979 Lincoln Code - IWE Solenoid Circuit Failure

Common Causes of C1979 Lincoln

  1. Damaged wiring or connectors in the IWE solenoid circuit
  2. Faulty IWE solenoid
  3. Vacuum leak in the system
  4. Malfunctioning control module
  5. Moisture or debris in the IWE system

Symptoms of C1979 Lincoln

  1. Grinding or growling noises from the front end of the vehicle
  2. Difficulty steering, especially at lower speeds
  3. Decreased fuel efficiency
  4. Increased tire wear
  5. Noticeable decrease in overall performance

How to Fix C1979 Lincoln

  1. Diagnose the issue by performing a thorough inspection of the IWE system, including the solenoid, wiring, and vacuum lines.
  2. Test the IWE solenoid and circuit for proper functionality using a multimeter or scan tool.
  3. Replace any damaged wiring, connectors, or components in the IWE system.
  4. Repair any vacuum leaks by replacing faulty hoses or seals.
  5. Clear the DTC from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix C1979 Lincoln

The cost of repairing a C1979 IWE solenoid circuit failure can vary depending on the specific cause of the issue and the labor rates at the repair shop. On average, the parts required for this repair may range from $100 to $300, while the labor costs could add another $100 to $200. It's essential to keep in mind that diagnostic time and labor rates can vary depending on the location, vehicle make and model, and the type of engine. For a more accurate estimate, it's recommended to consult with a local auto repair shop.

Need more information about the C1979 Lincoln code?

Need more information on how to fix the C1979 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1979 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 C1979 Lincoln Code

1. What are the common symptoms of an IWE Solenoid Circuit Failure in a Lincoln vehicle?

- Common symptoms include difficulty engaging or disengaging four-wheel drive, unusual noises from the front end, and the four-wheel drive system not functioning properly.

2. What can cause the OBDII code C1979 in a Lincoln due to IWE Solenoid Circuit Failure?

- The code can be triggered by issues such as a faulty IWE solenoid, damaged wiring, or a malfunctioning four-wheel drive system component.

3. How can I diagnose an IWE Solenoid Circuit Failure in my Lincoln vehicle?

- Diagnosis typically involves using a diagnostic scanner to retrieve the trouble code, checking the IWE solenoid and related wiring for damage, and testing the functionality of the four-wheel drive system.

4. Can I drive my Lincoln with an IWE Solenoid Circuit Failure code?

- It is not recommended to drive the vehicle with this issue, as it can lead to further damage to the four-wheel drive system and compromise vehicle safety.

5. How can I repair an IWE Solenoid Circuit Failure in my Lincoln?

- Repairing the issue involves replacing the faulty IWE solenoid, repairing damaged wiring, and ensuring proper functioning of the four-wheel drive system components.

6. Are there any preventive maintenance tips to avoid IWE Solenoid Circuit Failure in a Lincoln?

- Regularly inspecting and maintaining the four-wheel drive system components, checking for any signs of wear or damage, and addressing any issues promptly can help prevent IWE Solenoid Circuit Failure.

7. Can extreme weather conditions contribute to IWE Solenoid Circuit Failure in a Lincoln?

- Yes, extreme cold or wet conditions can put additional stress on the IWE solenoid and related components, potentially leading to failure.

8. How long does it typically take to repair an IWE Solenoid Circuit Failure in a Lincoln?

- The repair time can vary depending on the extent of the issue and the availability of parts, but it usually takes a few hours to a day to complete the repair.

9. Is it necessary to reset the OBDII code C1979 after repairing an IWE Solenoid Circuit Failure in a Lincoln?

- Yes, it is recommended to clear the trouble code using a diagnostic scanner after repairing the issue to ensure proper functioning of the vehicle's computer system.

10. Can I fix an IWE Solenoid Circuit Failure in a Lincoln myself, or should I seek professional help?

- While some DIY enthusiasts may be able to diagnose and replace the IWE solenoid themselves, it is recommended to seek professional help for proper diagnosis and repair to ensure the issue is resolved correctly.

Discuss the causes and fixes for C1979 Lincoln OBDII Code

Submit a New Comment

Code C1979 Lincoln comments

No comments found for this page.