P1244 Code - Alternator Load Input Failed High
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
- P1244 indicates Alternator Load Input Failed High.
- 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 P1244 Description
What are the Possible Causes of the DTC P1244?
- 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 P1244?
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 P1244 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 P1244 code?
Need more information on how to fix the P1244 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1244 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1244 Acura — Closed Throttle Position Insufficient
- P1244 Audi — Injector Circuit Open Cylinder 8
- P1244 BMW — Fuel Pump Emergency Shutoff
- P1244 Chevrolet — Injector 8 Output Circuit
- P1244 Ford — Alternator Load Input Failed High
- P1244 GMC — Injector 8 Output Circuit
- P1244 Honda — Closed Throttle Position Insufficient
- P1244 Jaguar — Barometric Pressure Sensor Range/Performance
- P1244 Lincoln — Alternator Load Input Failed High
- P1244 Mazda — Alternator Load Input Failed High
- P1244 Mercury — Alternator Load Input Failed High
- P1244 MINI — Fuel Pump Emergency Shutoff
- P1244 Mitsubishi — RAM Test For All Area
- P1244 Subaru — Wastegate Control Solenoid Valve Malfunction Low Input
- P1244 Volkswagen — Injector Circuit Open Cylinder 8
Frequently Asked Questions about P1244 Code
1. What does OBDII code P1244 mean?
P1244 indicates that the Powertrain Control Module (PCM) has detected an issue with the alternator load input signal being higher than expected.
2. What are the common symptoms of code P1244?
Symptoms include battery charging issues, dim or flickering headlights, electrical system malfunctions, and possibly an illuminated Check Engine Light.
3. What causes P1244 to appear?
The code can be triggered by a faulty alternator, a bad alternator load input circuit, corroded or damaged wiring, or a malfunctioning PCM.
4. Can a bad alternator cause code P1244?
Yes, a failing alternator can cause this code if it sends incorrect load signals to the PCM.
5. How do I diagnose P1244?
Start by inspecting the alternator, battery, and related wiring for damage or corrosion. Then test the alternator load input circuit and verify proper voltage levels.
6. Can I drive my car with code P1244?
Driving with this code is not recommended as it could lead to battery drain or electrical system failure, leaving you stranded.
7. How is P1244 fixed?
Repairs may involve replacing the alternator, repairing damaged wiring or connectors, or in rare cases, reprogramming or replacing the PCM.
8. Can a weak battery trigger code P1244?
Yes, a weak or failing battery can cause abnormal alternator load signals, potentially triggering this code.
9. How much does it cost to fix code P1244?
The repair cost depends on the root cause but typically ranges from $100 for wiring repairs to $500 or more for alternator replacement.
10. How can I prevent code P1244 from recurring?
Regular maintenance of the battery, alternator, and electrical system can help prevent this code from appearing in the future.
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