Convertible Roof Open / Close Signal Circuit: Description
WARNING: This page is about a different car, the 2007 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
This circuit detects the convertible top open/close condition and automatically switches sound characteristic to the appropriate type (between two types). Sound is momentarily muted while the convertible top is opening or closing. If an open or short occurs in this circuit, sound characteristic is not switched even though the convertible top is opened or closed.