E46 Reversing Sensor
Hello, my 330d E46 has just starting beeping erratically whilst selecting reverse, sometimes it flatlines, sometimes rapid beeping, sometimes nothing. The noises don't equate to any distances from objects in the rear view mirror. I've listened to each sensor and they are all ticking/buzzing whilst reverse is selected? Does this mean they are all still working? Also is there a fuse that is relevant to the parking sensors as I can't find the fuse map? Any help would be gratefully recieved!