Hello,

I'm encountering a strange issue with error code "P1628 sensor voltage reference 2 erratic"
my battery gets derained quickly within a week if I don't drive the car, I've sat inside it with the engine off to notice any abnormalities and I keep hearing a strange buzzing sound from behind the steeringwheel/dashboard that won't go off unless I hit the ignition.
I keep jump-starting and that sucks.

I'd appreciate any help as I just bought the car and I live outside the states.

Regards,