Engine-CodesLincoln – P1107 Lincoln

P1107 Lincoln Code - Dual Alternator Lower Circuit Malfunction

Quick Answer

The P1107 diagnostic trouble code for Lincoln vehicles indicates a Dual Alternator Lower Circuit Malfunction. Common causes include Faulty alternator, Wiring issues in the dual alternator system, Faulty alternator control module. 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
P1107 Lincoln indicates Dual Alternator Lower Circuit Malfunction.
Common causes
Common causes include Faulty alternator, Wiring issues in the dual alternator system, Faulty alternator control module.
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 10, 2024
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Code P1107 Lincoln Description

The P1107 diagnostic trouble code for Lincoln vehicles indicates a Dual Alternator Lower Circuit Malfunction. This means that there is an issue with the lower circuit of the dual alternator system in the vehicle. The alternator is responsible for generating electrical power to charge the battery and power the electrical systems in the vehicle. In a dual alternator system, there are two alternators working together to provide power to the vehicle.

OBDII Code P1107 Lincoln - Dual Alternator Lower Circuit Malfunction
P1107 Lincoln Code - Dual Alternator Lower Circuit Malfunction

Common Causes of P1107 Lincoln

  1. Faulty alternator
  2. Wiring issues in the dual alternator system
  3. Faulty alternator control module
  4. Corrosion or poor connections in the electrical system
  5. Issues with the vehicle's battery

Symptoms of P1107 Lincoln

  1. Dimming or flickering lights
  2. Battery warning light illuminated on the dashboard
  3. Difficulty starting the vehicle
  4. Electrical system failures
  5. Reduced engine performance

How to Fix P1107 Lincoln

  1. Begin by diagnosing the specific cause of the Dual Alternator Lower Circuit Malfunction using a diagnostic scanner to read the fault codes and identify the issue.
  2. Inspect the alternators, wiring, and connections for any signs of damage, corrosion, or wear. Repair or replace any faulty components as needed.
  3. Check the alternator control module for proper functioning and replace if necessary.
  4. Clear the fault codes from the vehicle's onboard computer system and perform a test drive to ensure that the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to pinpoint the exact cause of the malfunction.

Cost to Fix P1107 Lincoln

The cost of repairing a Dual Alternator Lower Circuit Malfunction can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. However, it is important to note that prices can vary significantly based on the location, vehicle make and model, and the extent of the repairs needed. It is recommended to obtain quotes from multiple repair shops to get a more accurate estimate of the cost for addressing this specific issue.

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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.

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