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Engine-Codes – Ford – P1245 2009 Ford Fusion

P1245 2009 Ford Fusion Code - Alternator Load Input Failed Low

Quick Answer

The P1245 code for a 2009 Ford Fusion indicates that the alternator load input has failed low. Common causes include Faulty alternator, Loose or damaged alternator belt, Malfunctioning voltage regulator. 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
P1245 2009 Ford Fusion indicates Alternator Load Input Failed Low.
Common causes
Common causes include Faulty alternator, Loose or damaged alternator belt, Malfunctioning voltage regulator.
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 16, 2024
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Code P1245 2009 Ford Fusion Description

The P1245 code for a 2009 Ford Fusion indicates that the alternator load input has failed low. This means that the power output from the alternator is lower than what is expected by the vehicle's electrical system. The alternator is responsible for charging the battery and providing power to the electrical components of the vehicle while the engine is running. When the alternator load input is low, it can lead to a variety of issues that affect the vehicle's performance and overall functionality.

OBDII Code P1245 2009 Ford Fusion - Alternator Load Input Failed Low
P1245 2009 Ford Fusion Code - Alternator Load Input Failed Low

Common Causes of P1245 2009 Ford Fusion

  1. Faulty alternator.
  2. Loose or damaged alternator belt.
  3. Malfunctioning voltage regulator.
  4. Wiring issues connecting the alternator to the electrical system.
  5. Poor electrical connections.

Symptoms of P1245 2009 Ford Fusion

  1. Dimming headlights or interior lights.
  2. Erratic behavior of dashboard lights.
  3. Difficulty starting the engine.
  4. Slow power window operation.
  5. Battery warning light illuminated on the dashboard.

How to Fix P1245 2009 Ford Fusion

  1. Begin by checking the alternator belt for any signs of wear or damage. Replace the belt if necessary.
  2. Test the alternator's output voltage using a multimeter to determine if it is functioning correctly. Replace the alternator if the output is below the recommended levels.
  3. Inspect the voltage regulator for any defects or malfunctions. Replace the voltage regulator if needed.
  4. Check the wiring connecting the alternator to the electrical system for any signs of damage or corrosion. Repair or replace any damaged wiring.
  5. Clear the diagnostic trouble codes from the vehicle's computer using an OBD-II scanner after completing the repairs.

Cost to Fix P1245 2009 Ford Fusion

The cost of repairing a low alternator load input issue on a 2009 Ford Fusion can vary depending on the specific cause of the problem and the extent of the repairs needed. On average, the cost of replacing an alternator can range from $300 to $800, including parts and labor. The cost of replacing an alternator belt is typically around $50 to $100, while a voltage regulator replacement may cost between $100 and $200. Wiring repairs or replacements can vary in cost depending on the extent of the damage. It is advisable to consult with a trusted mechanic or auto repair shop to get an accurate estimate based on the specific circumstances of the vehicle. Keep in mind that labor rates at auto repair shops can vary, so it's essential to inquire about rates in your local area for a more precise cost estimate.

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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 P1245 2009 Ford Fusion Code

1. What are the common symptoms of OBDII code P1245 on a 2009 Ford Fusion?

The common symptoms of OBDII code P1245 on a 2009 Ford Fusion include dimming or flickering lights, battery warning light on the dashboard, and difficulty starting the vehicle.

2. What does the OBDII code P1245 "Alternator Load Input Failed Low" mean on a 2009 Ford Fusion?

The OBDII code P1245 on a 2009 Ford Fusion indicates that the alternator is not providing enough electrical load to the vehicle's electrical system.

3. What are the possible causes of OBDII code P1245 on a 2009 Ford Fusion?

Possible causes of OBDII code P1245 on a 2009 Ford Fusion include a faulty alternator, damaged wiring or connectors, a weak battery, or a malfunctioning voltage regulator.

4. How can I diagnose the OBDII code P1245 on my 2009 Ford Fusion?

To diagnose OBDII code P1245 on a 2009 Ford Fusion, you can use an OBDII scanner to read the code and check the alternator's output voltage using a multimeter. Inspect the wiring and connectors for any damage or loose connections.

5. Can I still drive my 2009 Ford Fusion with OBDII code P1245?

It is not recommended to drive your 2009 Ford Fusion with OBDII code P1245 as it can lead to further electrical issues and potentially leave you stranded if the alternator fails completely.

6. How do I repair OBDII code P1245 on my 2009 Ford Fusion?

To repair OBDII code P1245 on a 2009 Ford Fusion, you may need to replace the alternator, repair any damaged wiring or connectors, and ensure the battery is in good condition. It is recommended to have a professional mechanic perform the repairs.

7. What should I do if I encounter OBDII code P1245 intermittently on my 2009 Ford Fusion?

If you encounter OBDII code P1245 intermittently on your 2009 Ford Fusion, it is still important to address the issue promptly to prevent further damage to the electrical system. Consider having a professional diagnose the problem to prevent any unexpected breakdowns.

8. Can a DIY enthusiast fix OBDII code P1245 on a 2009 Ford Fusion?

While some DIY enthusiasts may have the skills to diagnose and repair OBDII code P1245 on a 2009 Ford Fusion, it is recommended to consult a professional mechanic for this issue due to the complexity of the electrical system and potential safety hazards.

9. Will resetting the OBDII code P1245 on my 2009 Ford Fusion make the problem go away?

Resetting the OBDII code P1245 on your 2009 Ford Fusion may temporarily clear the warning light, but the underlying issue causing the code will still need to be addressed to prevent further electrical problems.

10. How much does it typically cost to repair OBDII code P1245 on a 2009 Ford Fusion?

The cost to repair OBDII code P1245 on a 2009 Ford Fusion can vary depending on the specific cause of the issue, but it may involve replacing the alternator, repairing wiring, or addressing other related components. Expect repair costs to range from a few hundred to over a thousand dollars.

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