P1246: Alternator Load Input Failed
HighPowertrainElectrical/Charging
What does P1246 mean?
P1246 is a diagnostic trouble code indicating "Alternator Load Input Failed". This code relates to your vehicle's electrical/charging and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.
Common causes
- Faulty electrical/charging component
- Wiring or connector issue in the related circuit
- Failed sensor providing incorrect readings
- Software/calibration issue requiring ECU update
- Related component causing secondary fault
What should you do?
This is a significant issue that should be diagnosed and repaired soon. Avoid long trips or heavy driving until the problem is resolved. Continued driving may cause additional damage.
Get a diagnosis for YOUR car
Code P1246 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.