Engine-CodesFord – P1245 Ford

P1245 Ford Code - Alternator Load Input Failed Low

Quick Answer

The P1245 Ford code indicates that the alternator load input has failed low. Common causes include Faulty alternator, Loose or corroded electrical connections, Faulty alternator load input sensor. 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 Ford indicates Alternator Load Input Failed Low.
Common causes
Common causes include Faulty alternator, Loose or corroded electrical connections, Faulty alternator load input sensor.
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 Aug 30, 2024
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Code P1245 Ford Description

The P1245 Ford code indicates that the alternator load input has failed low. This means that the vehicle's onboard computer is not receiving the expected signal from the alternator regarding the electrical load on the vehicle. The alternator is responsible for charging the battery and providing power to the electrical components of the vehicle. When the load input from the alternator is too low, it can affect the vehicle's overall performance and electrical system.

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

Common Causes of P1245 Ford

  1. Faulty alternator
  2. Loose or corroded electrical connections
  3. Faulty alternator load input sensor
  4. Wiring issues
  5. Battery issues

Symptoms of P1245 Ford

  1. Dim or flickering headlights
  2. Difficulty starting the vehicle
  3. Electrical malfunctions (e.g., power windows not working)
  4. Decreased fuel efficiency
  5. Dashboard warning light indicating charging system issue

How to Fix P1245 Ford

  1. Perform a thorough inspection of the alternator, electrical connections, and wiring.
  2. Test the alternator load input sensor for proper functioning.
  3. Replace the alternator if it is found to be faulty.
  4. Repair or replace any damaged or corroded electrical connections.
  5. Clear the diagnostic trouble codes and test the vehicle to ensure the issue is resolved.

Cost to Fix P1245 Ford

The cost of repairing a P1245 Ford code can vary depending on the specific cause of the issue and the labor rates in your area. On average, repairing an alternator load input failure can cost between $200 and $500, including parts and labor. Keep in mind that additional diagnosis time may be needed to pinpoint the exact cause of the issue, and labor rates can vary between different auto repair shops. It's recommended to get a few quotes from reputable shops in your area to get a more accurate estimate.

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Information for Specific Ford Models

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 Ford Code

1. What are the common symptoms of OBDII code P1245 Ford (Alternator Load Input Failed Low)?

- Common symptoms include dimming headlights, dead battery, electrical system malfunctions, and the vehicle stalling or not starting.

2. What are the possible causes of OBDII code P1245 Ford?

- The code P1245 Ford can be caused by a faulty alternator, damaged wiring or connectors in the alternator circuit, a defective alternator load input sensor, or a problem with the vehicle's powertrain control module (PCM).

3. How can I diagnose and repair OBDII code P1245 Ford?

- To diagnose this code, you can start by checking the alternator and its connections for any obvious signs of damage. Use a multimeter to test the alternator output and the alternator load input sensor. Repair or replace any faulty components as needed.

4. Can I still drive my vehicle with OBDII code P1245 Ford?

- It is not recommended to drive your vehicle with code P1245 Ford, as it can lead to further electrical system issues and potential stalling of the vehicle. It is best to address the problem promptly.

5. How much does it typically cost to repair OBDII code P1245 Ford?

- The cost of repairing OBDII code P1245 Ford can vary depending on the specific cause of the issue and the labor rates in your area. It may range from a few hundred dollars for a simple repair to over a thousand dollars for more complex issues.

6. Can a DIY enthusiast fix OBDII code P1245 Ford at home?

- Depending on your level of expertise, some DIY enthusiasts may be able to diagnose and repair OBDII code P1245 Ford at home. However, working with electrical systems can be complex, so it is crucial to have the right tools and knowledge to avoid further damage.

7. Is OBDII code P1245 Ford a common issue in Ford vehicles?

- While not as common as some other OBDII codes, P1245 Ford (Alternator Load Input Failed Low) can occur in Ford vehicles, particularly in older models or those with high mileage.

8. What happens if I ignore OBDII code P1245 Ford?

- Ignoring OBDII code P1245 Ford can lead to further damage to the alternator, battery, and other electrical components in your vehicle. It can also result in unexpected breakdowns and safety hazards on the road.

9. Can a bad alternator cause OBDII code P1245 Ford to appear?

- Yes, a faulty alternator is one of the common causes of OBDII code P1245 Ford. A bad alternator may not be providing the correct voltage output, triggering the code.

10. How long does it typically take to repair OBDII code P1245 Ford?

- The repair time for OBDII code P1245 Ford can vary depending on the complexity of the issue and the availability of parts. It may take a few hours to a full day for diagnosis and repair by a professional mechanic.

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