81
E90 General Vehicle Electrical
The roof functions center receives signals from the other control units for the functions
of the slide/tilt sunroof. The executing control unit is the roof functions center. On
request, it drives the sunroof motor and simultaneously monitors the motor rotation.
The following sunroof functions are integrated in the FZD:
• Reading operating requests
• Controlling sunroof motor
– Anti-trapping protection
– Blocking protection
– Thermal protection
• Panic mode
• Load cut-out during start procedure
• Terminal 58g
• Initialization
Control Modules for Sunroof Operation
Slide/Tilt Sunroof
Index Explanation Index Explanation
1
Car Access System2 (CAS2)
4
Roof Function Center (FZD)
2
Footwell Module (FRM)
5
Comfort Access (CA)
3
Junction Box Electronics Control Module (JBE)