Component description for overhead control panel control unit - GF82.20-P-5216CE

MODEL 204 with CODE (414) Power glass tilting/sliding roof as of model year 2009 /YoM 08 

Location 

The overhead control panel control unit is located in the front section of the headliner.

Task 

The overhead control panel control unit has the following tasks:

• Reading in of sensors, pickups and signals 
• Evaluation of input factors 
• Actuation of components 

Reading in of sensors, pickups and signals 

The input factors are read in via the following connections:

• Direct line 
• Wiper/inside rearview mirror LIN (LIN 2) 
• Interior CAN (CAN B) 

Direct line 

The signals from the following components are read via a direct line:

• Hall sensor 1, tilting/sliding roof (M12b1)
• Hall sensor 2, tilting/sliding roof (M12b2)
• Interior temperature sensor
• Tilting/sliding roof switch
• Rear dome lamp switch
• Interior lamp automatic function switch
• Front dome lamp switch
• Left front reading lamp switch
• Right front reading lamp switch
• Interior protection switch
• Towing sensor button

Wiper/inside rearview mirror LIN 

The signals from the following sensors are read in via the wiper/inside rearview mirror LIN:

• On vehicles with code (249) Automatic dimming inside and outside rearview mirrors including folding outside mirror without code (494) USA version or code (249) Automatic dimming inside rearview mirror and outside mirror (driver) and code (494) USA version:
  • Forward automatic mirror dimming light sensor (A67h1)
  • Rearward automatic mirror dimming light sensor (A67h2)
  • Mirror dimming (A67h3)
• Garage door opener (A67n2) (with code (232) Garage door opener with frequency 284-390 MHz)
• Light sensor (B38/1) (without code (345) Rain sensor)
• Rain/light sensor (B38/2) (with code (345) Rain sensor)

Interior CAN 

The signals are read in by the overhead control panel control unit via the interior CAN.

The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).

Evaluation of input factors 

The input factors are evaluated by the integrated microprocessor and the corresponding components are actuated.

Actuation of components 

Components are actuated with the following line:

• Direct line 

Direct line 

The following components are actuated via a direct line:

• Left reading lamp (A67e1)
• Right reading lamp (A67e2)
• Left front interior lamp
• Right front interior lamp
• Left sun visor mirror lamp (E14/1) via the left front mirror lamp switch (S101)
• Right sun visor mirror lamp (E14/2) via the right front mirror lamp switch (S102)
• Rear dome lamp (E15/3)

The housing of the overhead control panel control unit also contains the following components:

• On vehicles with code (882) Interior monitoring (with ATA only):
  • Interior protection and tow-away protection control unit (N26/6)
  • Interior protection receiver (N26/6a1)
  • Left interior protection transmitter (N26/6b1)
  • Right interior protection transmitter (N26/6b2)
• On vehicles with code (359) TELE AID emergency call system:
  • Emergency call system operating and display elements
• On vehicles with code (810) Sound system:
  • Sound system microphone (B25/6)

Wiring diagram for overhead control panel (OCP) control unit

PE54.21-P-2107-97FAA