Drivable short-term, but fix now to avoid damage.
This code means the engine computer detected a problem in the control circuit for the alternator (generator), which the computer uses to manage charging output. It can be caused by wiring or connector faults, a failing alternator, or an issue inside the computer itself. Repairs usually involve inspecting the alternator wiring and connections and, in many cases, replacing the alternator.
$150 – $800
Varies by vehicle and root cause.
Only for short distances, and with caution. If the alternator isn't charging properly, the battery can drain and leave you stranded when the car stalls. Have it checked quickly and avoid long trips until it's fixed.
A wiring or connector repair may run $150 to $300. If the alternator needs replacing, the total typically lands between $400 and $800 depending on the vehicle and parts.
Yes, it can be. A charging system fault can leave you with a dead battery and a stalled car. It's best to fix it promptly to avoid being stranded.
It can. If the alternator isn't charging because of this control circuit fault, the battery slowly loses charge while you drive and may not restart the car. That's why prompt repair matters.