Engine-CodesFord – P1246 2008 Ford Fusion

P1246 2008 Ford Fusion Code - Alternator Load Input Failed

Quick Answer

The P1246 diagnostic trouble code (DTC) for a 2008 Ford Fusion indicates that the alternator load input has failed. Common causes include Faulty alternator, Loose or corroded alternator connections, Broken or damaged alternator belt. 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
P1246 2008 Ford Fusion indicates Alternator Load Input Failed.
Common causes
Common causes include Faulty alternator, Loose or corroded alternator connections, Broken or damaged alternator belt.
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 16, 2024
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Code P1246 2008 Ford Fusion Description

The P1246 diagnostic trouble code (DTC) for a 2008 Ford Fusion indicates that the alternator load input has failed. This means that the vehicle's onboard computer system has detected a problem with the alternator's ability to provide the necessary electrical power to the vehicle's systems. The alternator is responsible for charging the battery and providing power to the electrical components of the vehicle while the engine is running.

OBDII Code P1246 2008 Ford Fusion - Alternator Load Input Failed
P1246 2008 Ford Fusion Code - Alternator Load Input Failed

Common Causes of P1246 2008 Ford Fusion

  1. Faulty alternator
  2. Loose or corroded alternator connections
  3. Broken or damaged alternator belt
  4. Faulty voltage regulator
  5. Wiring issues in the alternator circuit

Symptoms of P1246 2008 Ford Fusion

  1. Dimming or flickering headlights
  2. Battery warning light on the dashboard
  3. Difficulty starting the vehicle
  4. Electrical components not functioning properly
  5. Engine stalling or running rough

How to Fix P1246 2008 Ford Fusion

  1. Begin by checking the alternator connections for any looseness or corrosion. Tighten connections or clean them as needed.
  2. Inspect the alternator belt for wear or damage. Replace the belt if necessary.
  3. Test the alternator's output using a multimeter to ensure it is providing the correct voltage. Replace the alternator if it is faulty.
  4. Check the voltage regulator for proper functioning. Replace if necessary.
  5. Inspect the wiring in the alternator circuit for any damage or breaks. Repair or replace wiring as needed.

Cost to Fix P1246 2008 Ford Fusion

The cost of repairing an alternator load input failure on a 2008 Ford Fusion can vary depending on the specific cause of the issue and the cost of parts and labor in your area. On average, the cost of replacing an alternator in a Ford Fusion ranges from $300 to $800, including parts and labor. Additional costs may be incurred if other components need to be replaced or if there are wiring issues that require repair. It's recommended to get a detailed estimate from a reputable auto repair shop in your area to determine the exact cost for your specific situation. Labor rates at auto repair shops typically range from $80 to $150 per hour, but can vary based on location and other factors.

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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.

Frequently Asked Questions about P1246 2008 Ford Fusion Code

1. What are the common symptoms of OBDII code P1246 in a 2008 Ford Fusion?

The common symptoms of code P1246 include dimming or flickering lights, battery warning light illuminated on the dashboard, and difficulty starting the vehicle.

2. What does the OBDII code P1246 "Alternator Load Input Failed" indicate in a 2008 Ford Fusion?

Code P1246 indicates a malfunction in the alternator load input circuit, which may result in the alternator not properly charging the vehicle's battery.

3. What are the possible causes of OBDII code P1246 in a 2008 Ford Fusion?

Possible causes of code P1246 include a faulty alternator, damaged wiring or connectors in the alternator load input circuit, or a malfunctioning battery temperature sensor.

4. How can I diagnose the OBDII code P1246 in my 2008 Ford Fusion?

Diagnosing code P1246 typically involves checking the alternator output voltage, inspecting the wiring and connectors in the alternator load input circuit, and testing the battery temperature sensor for proper operation.

5. Can I still drive my 2008 Ford Fusion with OBDII code P1246 present?

It is not recommended to drive your vehicle with code P1246 present, as it may lead to a dead battery and potential stalling of the vehicle while driving.

6. How can I repair OBDII code P1246 in my 2008 Ford Fusion?

Repairing code P1246 may involve replacing the alternator, repairing or replacing damaged wiring or connectors, and ensuring the battery temperature sensor is functioning correctly.

7. Will resetting the OBDII code P1246 in my 2008 Ford Fusion make it go away permanently?

Resetting the code may clear it temporarily, but if the underlying issue causing code P1246 is not addressed, the code is likely to return.

8. Can a DIY enthusiast fix OBDII code P1246 in a 2008 Ford Fusion?

While some basic troubleshooting and repairs can be done by a DIY enthusiast, diagnosing and repairing code P1246 may require specialized tools and expertise, so it is recommended to consult a professional mechanic.

9. How much does it typically cost to repair OBDII code P1246 in a 2008 Ford Fusion?

The cost of repairing code P1246 can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. How urgent is it to address OBDII code P1246 in a 2008 Ford Fusion?

It is important to address code P1246 promptly to prevent potential damage to the vehicle's electrical system and ensure the proper functioning of the alternator and battery.

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