P1245 Mercury Code - Alternator Load Input Failed Low
Quick Answer
The P1245 diagnostic trouble code (DTC) for Mercury vehicles indicates that the alternator load input has failed low. Common causes include Faulty alternator load sensor, Loose or corroded electrical connections, Damaged wiring harness. 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 Mercury indicates Alternator Load Input Failed Low.
- Common causes
- Common causes include Faulty alternator load sensor, Loose or corroded electrical connections, Damaged wiring harness.
- 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 P1245 Mercury Description
The P1245 diagnostic trouble code (DTC) for Mercury vehicles indicates that the alternator load input has failed low. This means that the vehicle's onboard computer system is not receiving the expected amount of electrical load information from the alternator. The alternator plays a crucial role in charging the vehicle's battery and providing power to various electrical components while the engine is running. When the alternator load input fails low, it can lead to electrical issues, battery drain, and potential stalling of the vehicle.
Common Causes of P1245 Mercury
- Faulty alternator load sensor
- Loose or corroded electrical connections
- Damaged wiring harness
- Defective alternator
- Issues with the vehicle's computer system
Symptoms of P1245 Mercury
- Dimming headlights or interior lights
- Battery warning light illuminated on the dashboard
- Electrical system malfunctions (e.g., radio cutting out, power windows not working)
- Difficulty starting the vehicle or frequent battery issues
How to Fix P1245 Mercury
- Perform a visual inspection of the alternator load sensor and wiring connections to check for any damage or corrosion.
- Test the alternator load sensor using a multimeter to determine if it is functioning properly.
- Check the alternator output voltage to ensure it is within the manufacturer's specifications.
- Replace the alternator load sensor if it is found to be faulty.
- Clear the DTC with a scan tool and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1245 Mercury
The cost of repairing a P1245 alternator load input failed low code can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Keep in mind that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the specific repair shop. It's recommended to obtain quotes from multiple auto repair shops to get a more accurate estimate of the total cost.
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