help dtc codes

[steve57]

hi everyone
can you help
i have 2 codes they are to do with the rear parking aid

they are
01543, audi parking aid chime open or short to ground ( where is the chime located how easy to change ? anyone have a part number)
and
01547

thanks

[Crasher]

Clipped to the underside of the rear parcel shelf.

[steve57]

hi
thanks all sorted fitted new buzzer (got from dealer £13) now all working