Component Description For Overhead Control Panel Control Unit - GF82.20-P-5216GW

Model 463 (except 463.342) 

as of model year 2013 

Model 463.342 

as of model year 2017 

except code ZD4 (Vehicle for non-civilian operations) 

Model 463.342 

as of model year 2017 

with code F16 (Tilting/sliding sunroof, electric) 

with code ZD4 (Vehicle for non-civilian operations) 

Model 463 (except model 463.342) as of 03.04.2018, shown with code F15 (Glass electric sliding roof) and code EM2 (HERMES - UMTS communication module) and code EU8 (Burmester 3D surround sound system) 

Courtesy of MERCEDES-BENZ USA

Model 463 up to 02.04.2018, model 463.342, shown on model 463.23 

Courtesy of MERCEDES-BENZ USA

Model 463 up to 02.04.2018, model 463.342, with code FZ8 (Alarm system), shown on model 463.23 

Courtesy of MERCEDES-BENZ USA

Model 463 up to 02.04.2018, model 463.342, with code ZU8 (National version for the USA), shown on model 463.23 

Courtesy of MERCEDES-BENZ USA

Location 

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

Tasks 

The overhead control panel control unit has the following tasks:

• Reading in of signals 
• Evaluation of input factors 
• Actuation of components 
• Transmission and reception of ultrasound waves (as of 03.04.2018 except model 463.342, with code FZ8 (Alarm system)) 
• Recognition of changes in vehicle inclination (as of 03.04.2018 except model 463.342, with code FZ8 (Alarm system)) 
• Output of information (up to 02.04.2018 or model 463.342) 

Reading in of signals 

The input factors are read in via the following connections:

• Direct line 
• Roof LIN (LIN B13) 
• Alarm systems LIN (LIN B14) (as of 03.04.2018 except model 463.342, with code FZ8 (Alarm system)) 
• Interior CAN (CAN B) (as of 03.04.2018 except model 463.342) 

Direct line 

For vehicles as of 03.04.2018 except model 463.342 the following applies: 

The signals from the following components are read via direct lines:

• Interior temperature sensor with integrated fan (N70b1)
• Roof system switch (with code F15 (Glass electric sliding roof))
• Interior lamp automatic function button
• Front dome lamp button
• Rear dome lamp button
• Left front reading lamp button
• Right front reading lamp button
• SOS button (with code EK1 (HERMES - LTE communication module) or code EM2 (HERMES - UMTS communication module))
• Mercedes me connect button (with code EK1 (HERMES - LTE communication module) or code EM2 (HERMES - UMTS communication module))
• Left rear dome lamp button (E11/1s1) in the left rear dome lamp (E11/1)
• Right rear dome lamp button (E11/2s1) in the right rear dome lamp (E11/2)
• Left rear glass breakage sensor (B39), right rear glass breakage sensor (B39/1) and rear window glass breakage sensor (B39/4) (with code FZ8 (Alarm system))

For vehicles up to 02.04.2018 or model 463.342 the following applies: 

The signals from the following component parts are read in over direct lines:

• Interior temperature sensor with integrated fan
• Roof system switch (model 463.202 or with code D27 (Power glass tilting/sliding roof) or code F16 (Electric sliding roof with tilting function))
• Rear dome lamp switch
• Interior lamp automatic door system switch
• Left front reading lamp switch (except model 463.342)
• Right front reading lamp switch (except model 463.342)
• Anti-theft alarm system/emergency call system button group (with code FZ5 (Anti-theft alarm system) or code FZ8 (Alarm system) or code ZU8 (USA national version))

The automatic door system interior lamp switch has the following positions:

• Interior illumination ON
• Automatic door system ON
• Automatic door system OFF

Roof LIN 

The signals are read in by the overhead control panel control unit via the roof LIN.

Alarm systems LIN (as of 03.04.2018 except model 463.342, with code FZ8 (Alarm system)) 

The overhead control panel control unit reads in the signals from the alarm siren (H3/1) via the alarm system LIN.

Interior CAN (as of 03.04.2018 except model 463.342) 

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

Evaluation of input factors 

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

Actuation of components 

The actuation of the components takes place via the following connections:

• Direct line 
• Roof LIN (as of 03.04.2018 except model 463.342) 
• Alarm systems LIN (as of 03.04.2018 except model 463.342, with code FZ8 (Alarm system)) 
• Interior CAN (as of 03.04.2018 except model 463.342) 

Direct line 

For vehicles as of 03.04.2018 except model 463.342 the following applies: 

The following components are actuated via direct lines:

• Front dome lamp
• Glasses case illumination (N70e8) (except code EU8 (Burmester 3D surround sound system))
• Fan motor in interior temperature sensor with integrated fan
• 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)
• Left rear dome lamp
  • Left rear reading lamp (E11/1e1)
  • Left rear interior lamp (E11/1e2)
• Right rear dome lamp
  • Right rear reading lamp (E11/2e1)
  • Right rear interior lamp (E11/2e2)

For vehicles up to 02.04.2018 or model 463.342 the following applies: 

The following components are actuated via direct lines:

• Left reading lamp (A67e1) (except model 463.342)
• Right reading lamp (A67e2) (except model 463.342)
• Left front interior lamp (integrated)
• Right front interior lamp (integrated)
• Left sun visor mirror lamp via the left front mirror lamp switch
• Right sun visor mirror lamp over the right front mirror lamp switch
• Dome lamp (E15) (model 463.20)
• Rear dome lamp (E15/3) (model 463.23/24/27/34)
• Anti-theft alarm system button group/emergency call system (with code FZ5 (Antitheft anti-theft alarm system) or code FZ8 (Alarm system) or code ZU8 (National version for the USA) or code EK0 (Mercedes-Benz emergency call system))

Roof LIN (as of 03.04.2018 except model 463.342) 

The overhead control panel control unit actuates the following components over the roof-LIN:

• Left reading lamp
• Right reading lamp
• Ambient lamp (A67e3)

Alarm systems LIN (as of 03.04.2018 except model 463.342, with code FZ8 (Alarm system)) 

The overhead control panel control unit actuates the alarm siren via the alarm system LIN.

Interior CAN (as of 03.04.2018 except model 463.342) 

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

Transmission and reception of ultrasound waves (as of 03.04.2018 except model 463.342, with code FZ8 (Alarm system)) 

The overhead control panel control unit monitors the vehicle interior for movements by sending and receiving ultrasonic waves. The overhead control panel control unit contains the following components for this purpose:

• Interior protection receiver (N70a1)
• Left interior protection transmitter (N70a2)
• Right interior protection transmitter (N70a3)

Recognition of changes in vehicle inclination (as of 03.04.2018 except model 463.342, with code FZ8 (Alarm system)) 

If the inclination sensor integrated in the overhead control panel control unit senses an alarm-relevant inclination change, an alarm is output.

Output of information (up to 02.04.2018 or model 463.342) 

The overhead control panel control unit sends information over the roof LIN.

	Wiring diagram for overhead control panel (OCP) control unit	Model 463 (except 463.342) as of model year 2013 up to model year 2019	PE54.21-P-2107-97ZGA
		Model 463.342 as of model year 2017 except code ZD4 (Vehicle for non-civilian operations) Model 463.342 as of model year 2017 with code F16 (Tilting/sliding sunroof, electric) with code ZD4 (Vehicle for non-civilian operations)	PE54.21-P-2107-97ZBA
		Model 463 (except 463.342) as of model year 2019	PE54.21-P-2107-97ZHA