Electronic Overhead Control Panel, Component Description - GF82.20-P-5217RR

Model 190 

Courtesy of MERCEDES-BENZ USA

Location 

The overhead control panel electronics is located at the front, next to the headliner.

Tasks 

The controls for the following systems are arranged at the overhead control panel electronics:

• Interior illumination:
  • Rear dome lamp switch (model 190.3)
  • Interior lamp automatic function switch
  • Dome lamp switch
  • Left reading lamp switch
  • Right reading lamp switch
• Interior and tow-away protection (with code 882 (Interior protection and tow-away protection)):
  • Interior protection switch
  • Towing sensor button
• Emergency call/assist system (with code 348 (Emergency call/assist system) code 350 (eCall Europe emergency call system) or code 351 (Emergency call system (HERMES))):
  • SOS button
  • Breakdown assistance button (N70/3s10) (with code 348 (Emergency call/assist system or code 351 (Emergency call system (HERMES)))
  • MB Info button (N70/3s11) (with code 348 (Emergency call/assist system) or code 351 (Emergency call system (HERMES)))

The node of the wiper/inside rear-view mirror LIN (LIN 2) is integrated in the overhead control panel electronics

The following components are connected to this node:

• Inside rearview mirror (A67) (with code 231 (Garage door opener) or code 494 (USA version) or code P49 (Mirror package))
• Rain/light sensor (B38/2)
• Front SAM control unit with fuse and relay module (N10/1)

The overhead control panel electronics are supplied with voltage by the front SAM control unit.

The following components are supplied with voltage by the overhead control panel electronics:

• Rain/light sensor
• Left sun visor mirror lamp (E14/1) via the left mirror lamp switch (S101)
• Right sun visor mirror lamp (E14/2) via the right mirror lamp switch (S102)

The housing of the overhead control panel electronics contains the following components:

• Interior temperature sensor with integrated fan (N70/3b1)
• Interior protection and tow-away protection control unit (N26/6) (model 190 3 with code 882 (Interior protection and tow-away protection)):
  • Interior protection receiver (N26/6a1)
  • Left interior protection transmitter (N26/6b1)
  • Right interior protection transmitter (N26/6b2)

Wiring diagram for overhead control panel (OCP) control unit

PE54.21-P-2107-97HBA