P1246 Ford 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 Ford 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.
Code P1246 Ford Description
What are the Possible Causes of the DTC P1246 Ford?
- 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 Ford?
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 Ford 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.
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Information for Specific Ford Models
- P1246 1997 Ford F150 — Alternator Load Input Failed
- P1246 1998 Ford F150 — Alternator Load Input Failed
- P1246 1999 Ford F150 — Alternator Load Input Failed
- P1246 2000 Ford F150 — Alternator Load Input Failed
- P1246 2001 Ford F150 — Alternator Load Input Failed
- P1246 2002 Ford F150 — Alternator Load Input Failed
- P1246 2003 Ford F150 — Alternator Load Input Failed
- P1246 2006 Ford Freestyle — Alternator Load Input Failed
- P1246 2007 Ford Fusion — Alternator Load Input Failed
- P1246 2008 Ford Fusion — Alternator Load Input Failed
- P1246 2009 Ford Fusion — Alternator Load Input Failed
- P1246 2010 Ford Fusion — Alternator Load Input Failed
- P1246 2011 Ford Fusion — Alternator Load Input Failed
- P1246 2012 Ford Fusion — Alternator Load Input Failed
Frequently Asked Questions about P1246 Ford Code
1. What are the common symptoms of OBDII code P1246 Ford (Alternator Load Input Failed)?
- Common symptoms include dimming lights, weak battery, dashboard warning lights related to charging system, and potential stalling or rough idling.
2. What are the possible causes of OBDII code P1246 Ford?
- The code may be triggered by a faulty alternator, damaged wiring or connectors in the alternator circuit, or a malfunction in the alternator load input sensor.
3. How can I diagnose the issue causing OBDII code P1246 Ford?
- A thorough inspection of the alternator, wiring, and load input sensor is recommended. Testing the alternator output and load input sensor voltage can help pinpoint the issue.
4. Can driving with OBDII code P1246 Ford cause further damage to the vehicle?
- Continuing to drive with this code can lead to battery drainage, potential stalling, and damage to other electrical components in the vehicle.
5. How can I repair OBDII code P1246 Ford (Alternator Load Input Failed)?
- Repair typically involves replacing a faulty alternator, repairing damaged wiring or connectors, or replacing the load input sensor as needed.
6. Is it safe to drive my vehicle with OBDII code P1246 Ford present?
- It is not recommended to drive the vehicle with this code present, as it can lead to battery failure and potential stalling while driving.
7. Can a DIY enthusiast fix OBDII code P1246 Ford, or is professional help necessary?
- Depending on the root cause, some DIY enthusiasts may be able to address the issue by replacing the alternator, repairing wiring, or replacing the load input sensor. However, professional help is recommended for accurate diagnosis and repair.
8. How much does it typically cost to repair OBDII code P1246 Ford?
- The cost of repair can vary depending on the specific cause of the code, but it may range from a couple hundred to a few hundred dollars for parts and labor.
9. How often does OBDII code P1246 Ford occur in Ford vehicles?
- This code can occur in Ford vehicles equipped with OBDII systems, particularly in models with alternator or charging system issues.
10. Can a temporary fix be applied to clear OBDII code P1246 Ford, or is a permanent repair necessary?
- Clearing the code temporarily may be possible by resetting the vehicle's computer, but a permanent repair is essential to prevent recurring issues with the alternator load input.
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