Roof function center (FZD)

The FZD receives information from the inside mirror. The FZD is connected across the K-CAN with the footwell module (FRM) and the junction box electronics (JBE).

Fig 1: Identifying Inside Mirror Glass And Automatic-Dim Feature Photosensor

Courtesy of BMW OF NORTH AMERICA, INC.

Graphic shows inside mirror on the R56

Item	Description
1	Inside mirror glass (electrochromic)
2	Photosensor for automatic-dim feature (electrochromic)
3	Buttons for the integrated universal remote control

Fig 2: Identifying Inside Mirror Glass

Courtesy of BMW OF NORTH AMERICA, INC.

Graphic shows the inside mirror on the E70

Item	Description
1	Inside mirror glass (electrochromic)
2	Photosensor for automatic-dim feature (electrochromic)
3	LED for the anti-theft alarm system (DWA)
4	Buttons for the integrated universal remote control