AutoCodes – Lincoln – C1979 Lincoln

C1979 Lincoln Code - IWE Solenoid Circuit Failure

Quick Answer

The Four Wheel Drive (4WD) Control Module monitors the Integrated Wheel End (IWE) Solenoid. Common causes include Faulty Integrated Wheel End (IWE) Solenoid, Integrated Wheel End (IWE) Solenoid harness is open or shorted, Integrated Wheel End (IWE) Solenoid circuit poor electrical connection. 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 Faulty Integrated Wheel End (IWE) Solenoid, Integrated Wheel End (IWE) Solenoid harness is open or shorted, Integrated Wheel End (IWE) Solenoid circuit poor electrical connection.
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 Popularity 2,679

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Dec 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1979 Lincoln Description

The Four Wheel Drive (4WD) Control Module monitors the Integrated Wheel End (IWE) Solenoid. The 4WD Control Module sets the OBDII code when the IWE Solenoid is not to factory specifications.

OBDII Code C1979 Lincoln - IWE Solenoid Circuit Failure - AutoCodes.com — C1979 Lincoln Code - IWE Solenoid Circuit Failure

What does this mean?

What are the Possible Causes of the DTC C1979 Lincoln?

Faulty Integrated Wheel End (IWE) Solenoid
Integrated Wheel End (IWE) Solenoid harness is open or shorted
Integrated Wheel End (IWE) Solenoid circuit poor electrical connection

How to Fix the DTC C1979 Lincoln?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1979 Lincoln code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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.