Touchpad, Component Description - GF54.21-P-4511GN
Model 166
as of Model year 2016
with code 531 (COMAND® APS)
Model 292
with code 531 (COMAND® APS)
Shown on Model 292, as of 01.06.2016
Shown on Model 292, up to 31.05.2016
Location
The touch pad is located on the center console.
Tasks
The touchpad is the central control for various telematics functions.
The touchpad can be used to operate the functions shown on the Audio/COMAND® display (A40/8). To this end, the touch pad fulfills the following tasks:
- Touch-sensitive registration of control signals
- Receiving signals
- Sending signals
Touch-sensitive registration of control signals
The user input (operating gestures, including pressing, and handwriting recognition) is detected by the touch-sensitive user interface and the palm rest is recognized. In addition, the touch pad detects when the following integrated buttons are pressed:
- "Back" button
- Background Audio button (enables operation of the audio source without leaving the current menu)
- Home and Favorites button
Model 166
as of Model year 2018
with code 531 (COMAND® APS)
Model 292
as of Model year 2018
with code 531 (COMAND® APS)
When changing from one menu entry to another one, the touchpad provides haptic feedback. This function can be activated and parameterized using the diagnosis tester.
Receiving signals
The touchpad is connected through the telematics CAN (CAN A) to the vehicle electronics.
For example, the touchpad reads in the following signals over the telematics CAN:
- Terminal 15 status
- On-board electrical system status
- Engine running status
- Terminal 58d
- Wake-up signal
- Control signals from the COMAND® controller unit (A40/3)
Sending signals
The touchpad sends the control signals over the telematics CAN to the COMAND® controller unit.
| Wiring diagram for touch pad | PE82.00-P-2061-97NBA |