Component description for COMAND operating, display and controller unit - GF82.85-P-3134GQJ
MODEL 164.1 with CODE (527) COMAND APS with single DVD drive (with navigation) with CODE (498) Japan version as of model year 2009
MODEL 164.8 with CODE (527) COMAND APS with single DVD drive (with navigation) with CODE (498) Japan version as of model year 2009
MODEL 251.0 with CODE (527) COMAND APS with single DVD drive (with navigation) with CODE (498) Japan version as of model year 2009
MODEL 251.1 with CODE (527) COMAND APS with single DVD drive (with navigation) with CODE (498) Japan version as of model year 2009
Shown on model 164.1
Location
The COMAND operating, display and controller unit is installed in the center of the instrument panel.
Task
- Central operating and display unit for the entertainment and communication systems integrated into the vehicle
- Reading in the controls and input signals
- Evaluation of input factors
- Actuates output media
Central control and display device for entertainment and communications systems integrated into vehicle
The COMAND operating, display and controller unit provides a structured and uniform user surface to the user.
Reading in the controls and input signals
The input factors are read in via the following connections:
- Direct line
- Controller Area Network (data bus/CAN bus) (CAN)
- Media Oriented System Transport (MOST)
Direct line
- Circuit 30
- Circuit 31
- Wake-up for MOST (bidirectional)
- AUX input 1
- Antenna input for FM2 and Vehicle Information and Communication System (VICS) signals from the FM rear window antenna amplifier (A2/19) via roof antenna module (A2/93)
- Antenna input for AM and FM1 signals from the FM/AM/RRCL [FZV] antenna (A2/93a1)
- Bluetooth antenna (A2/91)
- GPS antenna (A2/93a6)
- Handsfree system microphone group (A67b1) (2 microphones for handsfree use)
- Electronic Toll Collection antenna (ETC) (A2/94) (Dealer Option)
- VICS antenna (A2/95) (Dealer Option)
- TV input (digital), with code (865) TV tuner
- Reversing camera
- Communications control unit (N123/6) (up to 30.6.10)
- Electronic Toll Collection control unit (ETC) (A50/3) (Dealer Option)
- AUX input 2
CAN
The COMAND operating, display and controller unit is a subscriber of the interior CAN (CAN B). It communicates with the following control units, for example:
- EZS control unit (N73)
- Steering column tube module (N80)
- Central gateway control unit (N93)
MOST
The COMAND operating, display and controller unit is a subscriber of MOST. It communicates with the following control units, for example:
- TV digital tuner (A90/3), with code (865) TV tuner
- Sound system amplifier (N40/3), with code (810) Sound system
- Media interface control unit (N125/1), with code (518) Media interface
Evaluation of input factors
The input values are processed by the COMAND operating, display and controller unit.
Actuates output media
The following direct output signals are possible:
- Audio out to the following speakers (except code (810) Sound system):
- Left front door speaker (H4/5)
- Right front door speaker (H4/6)
- Left rear door speaker (H4/3)
- Right rear door speaker (H4/4)
- Left front door tweeter (H4/33)
- Right front door tweeter (H4/34)
- Left rear door tweeter (H4/35)
- Right rear door tweeter (H4/36)
- External fan (power supply, speed control and diagnosis)
- Communications control unit power supply (up to 30.6.10)
- Power supply for Electronic Toll Collection (ETC) antenna (Dealer Option)
- Power supply for VICS antenna (Dealer Option)
- Power supply for Electronic Toll Collection (ETC) control unit (Dealer Option)
- FM/AM/RRCL [FZV] antenna power supply
- Bluetooth antenna power supply
- Power supply for GPS antenna
Design
The following components are also integrated:
- DVD drive
- Central computer
- Hard disk
- Navigation module
- Audio amplifier, except code (810) Sound system
Function
The control buttons on the COMAND operating, display and controller unit are read in and made available for the integrated central computer. The button operations are processed further in the central computer and transferred to other system components as a message via MOST or the interior CAN.
If the "ON" button on the COMAND operating, display and controller unit is pressed, the COMAND operating, display and controller unit is switched on or off. The volume is regulated by turning the volume setting rotary switch for each set audio source. Pressing the function keys enables the user to switch to the desired system components.
DVD drive
The integrated DVD drive can be used to play audio or video CDs and DVDs (including in MP3 format).
| Cockpit Management and Data System (COMAND) control unit wiring diagram | Model 164 | PE82.85-P-2101-97MAF | |
| Model 251 | PE82.85-P-2101-97RAF |