P1246 code meaning, causes and symptoms
P1246 means alternator load input failed.
P1246 code meaning is one of the most common OBD-II searches when a warning light appears on the dashboard.
Drivers searching for P1246 usually want to know what the code means, whether the car is safe to drive and what part may need testing first.
Because P1246 can appear on multiple makes and models, it is important to combine the code meaning with live data, symptoms and any other stored faults.
A proper diagnosis for P1246 should normally include a scan tool check, freeze-frame review and inspection of the components related to alternator load input failed.
Severity: Medium
Driving advice: Whether you can keep driving depends on how the vehicle is behaving. If there is rough running, loss of power, overheating or stalling, diagnose it as soon as possible.
FAQs
What does P1246 mean?
P1246 means alternator load input failed.
What can cause P1246?
Causes can include failed components, wiring faults, leaks, pressure issues, bad readings or another upstream fault affecting the same system.
Is P1246 serious?
Severity depends on how the vehicle is behaving and what system is affected. Some codes are minor, while others can affect engine performance, emissions or drivability.