P1246 2010 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 2010 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.
Code P1246 2010 Ford Fusion Description
What are the Possible Causes of the DTC P1246 2010 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 2010 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 2010 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.
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Frequently Asked Questions about P1246 2010 Ford Fusion Code
1. What does the OBDII code P1246 mean on a 2010 Ford Fusion?
P1246 indicates that the Alternator Load Input signal has failed, meaning the vehicle's PCM (Powertrain Control Module) is not receiving proper data from the alternator about its load or output.
2. What are the common symptoms of the P1246 code in a 2010 Ford Fusion?
Symptoms include an illuminated check engine light, charging system warning light, battery not charging properly, dim headlights, or difficulty starting the vehicle.
3. What causes the P1246 code to appear on a 2010 Ford Fusion?
Common causes include a faulty alternator, damaged or corroded wiring to the alternator, a defective PCM, or a bad alternator load input sensor.
4. Can a weak or failing battery trigger the P1246 code in a 2010 Ford Fusion?
Yes, a weak or failing battery can cause communication issues between the alternator and PCM, potentially triggering the P1246 code.
5. How do you diagnose the P1246 code on a 2010 Ford Fusion?
Diagnosis involves inspecting the alternator, checking the wiring and connectors for damage or corrosion, testing the battery, and verifying the alternator's output using a multimeter.
6. Can I drive my 2010 Ford Fusion with the P1246 code active?
It is not recommended to drive the vehicle with this code active, as it may lead to battery discharge, loss of electrical power, or a breakdown.
7. How is the P1246 code typically fixed on a 2010 Ford Fusion?
Common fixes include repairing or replacing the alternator, cleaning or replacing damaged wiring, and in rare cases, replacing the PCM if it is faulty.
8. How much does it cost to fix the P1246 code on a 2010 Ford Fusion?
Repair costs can range from $100 to $500 or more, depending on whether the alternator, wiring, or PCM needs replacement.
9. Does the P1246 code always mean the alternator is faulty in a 2010 Ford Fusion?
No, the issue could also stem from wiring problems, a weak battery, or a PCM malfunction, so proper diagnosis is essential.
10. Can clearing the P1246 code solve the issue on a 2010 Ford Fusion?
Clearing the code may remove the check engine light temporarily, but the underlying issue must be addressed to prevent the code from returning.
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