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System overview: Signals
The chart below summarizes input and output signals to and from the power seat module (PSM) (4/52). The signal types are divided into directly connected signals, serial communication and controller area network (CAN) communication. The illustration below displays the same information with the Volvo component designations.
| Input signals |
Output signals |
| Directly connected: |
Directly connected: |
- Control panel (3/26) with:
- Control buttons (eight input signals, two buttons)
- Memory button 1, 2 and 3
- Programming button (MEM).
- Hall sensors (four integrated into the seat motor)
- Control circuit connected to the control panel.
|
- Seat motors (6/16-19) (four units).
|
| Via Controller Area Network (CAN) communication: |
Via Controller Area Network (CAN) communication: |
- Central electronic module (CEM) (4/56)
- Upper electronic module (UEM) (4/70).
|
- Driver door module (DDM) (3/126)
- Passenger door module (PDM) (3/127).
|
Courtesy of VOLVO CARS OF NORTH AMERICA.