AutoCodes – Ford – P1246 2012 Ford Fusion

P1246 2012 Ford Fusion Code - Alternator Load Input Failed

Quick Answer

The Powertrain Control Module (PCM) monitors generator load from the generator/regulator in the form of frequency. Common causes include Faulty Alternator/Generator, Alternator/Generator harness is open or shorted, Alternator/Generator 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: P1246 2012 Ford Fusion indicates Alternator Load Input Failed.
Common causes: Common causes include Faulty Alternator/Generator, Alternator/Generator harness is open or shorted, Alternator/Generator 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 1,860

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1246 2012 Ford Fusion Description

The Powertrain Control Module (PCM) monitors generator load from the generator/regulator in the form of frequency. The frequency range is determined by the temperature of the voltage regulator where 97% represents full load, below 6% means no load.

OBDII Code P1246 2012 Ford Fusion - Alternator Load Input Failed - AutoCodes.com — P1246 2012 Ford Fusion Code - Alternator Load Input Failed

What does this mean?

What are the Possible Causes of the DTC P1246 2012 Ford Fusion?

Faulty Alternator/Generator
Alternator/Generator harness is open or shorted
Alternator/Generator circuit poor electrical connection
Damaged Powertrain Control Module (PCM)

How to Fix the DTC P1246 2012 Ford Fusion?

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 P1246 2012 Ford Fusion 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 P1246 2012 Ford Fusion code?

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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 2012 Ford Fusion Code

1. What are the common symptoms of OBDII code P1246 in a 2012 Ford Fusion?

The common symptoms of code P1246, indicating an Alternator Load Input Failed error, may include dimming headlights, weak or dead battery, and dashboard warning lights related to the charging system.

2. What are the potential causes of OBDII code P1246 in a 2012 Ford Fusion?

Possible causes of code P1246 in a 2012 Ford Fusion include a faulty alternator, damaged wiring or connectors in the alternator system, or a failing battery.

3. How can I diagnose OBDII code P1246 in my 2012 Ford Fusion?

Diagnosing code P1246 involves checking the alternator output voltage, inspecting the wiring and connectors for any damage, and testing the battery's condition to ensure it is functioning properly.

4. What are the repair options for OBDII code P1246 in a 2012 Ford Fusion?

Repair options for code P1246 may include replacing the alternator, repairing or replacing damaged wiring or connectors, and ensuring the battery is in good working order.

5. Can I continue driving my 2012 Ford Fusion with OBDII code P1246 present?

It is not recommended to continue driving your 2012 Ford Fusion with code P1246 present, as it could lead to further damage to the electrical system and potential stalling of the vehicle.

6. How much does it typically cost to repair OBDII code P1246 in a 2012 Ford Fusion?

The cost of repairing code P1246 in a 2012 Ford Fusion can vary depending on the specific underlying issue, but it may range from a few hundred dollars to over a thousand dollars for parts and labor.

7. Is it possible to reset OBDII code P1246 in a 2012 Ford Fusion without repairing the issue?

While you can clear the code using an OBDII scanner, it is not recommended to do so without addressing the underlying problem, as it will likely reappear once the issue persists.

8. How can I prevent OBDII code P1246 from occurring in the future in my 2012 Ford Fusion?

To prevent code P1246 in the future, it is essential to perform regular maintenance on the alternator, battery, and electrical system of your 2012 Ford Fusion, including checking for any signs of wear or damage.

9. Will OBDII code P1246 cause my 2012 Ford Fusion to fail an emissions test?

If code P1246 is triggering the check engine light, it may cause your 2012 Ford Fusion to fail an emissions test, as it indicates a malfunction in the alternator load input system, which is essential for proper vehicle operation.

10. Can a DIY enthusiast with basic automotive knowledge repair OBDII code P1246 in a 2012 Ford Fusion?

While some DIY enthusiasts may be able to address simple causes of code P1246, such as a loose connector or corroded wiring, more complex issues like alternator replacement may require professional expertise to ensure proper repair and safety.