Massage Seats

Massage seat requests from the on/off soft keys on the Touch Screen (TS) are sent via the High Speed (HS) Controller Area Network (CAN) comfort system bus to the Driver Seat Module (DSM) or Passenger Seat Module (PSM). The DSM or PSM processes the requests and transmits them to the massage master solenoid on the Local Interconnect Network (LIN) bus connection.

When the on soft key is pressed, the massage master solenoid operates the relevant master and slave solenoid valves and activates the air pump. The massage function operates in 10 minute cycles. After a 10 minute cycle is complete the user must reselect the function if a further 10 minute cycle is required.

When the off soft key is pressed, the 10 minute cycle is completed, or the ignition is switched off. The solenoid valves are opened to deflate the massage cells and the air pump turned off.

During operation, the bottom cell pair inflate and then deflate. As the first cell pair are deflating the second cell pair start to inflate. This sequence is repeated for all five cell pairs, from cell pair one at the bottom to cell pair five at the top.