Front Seat Memory Function: Notes

The memory function is available for both the driver's and front-passenger seats. The memory buttons are located on the armrest. The memory function can be activated from terminal 30B ON. The memory function is integrated into the seat module. The seat module of the seat concerned has sole responsibility for this function.

Two memory positions and the current seat position can be stored.

The memory buttons are integrated into the armrest of the vehicle's doors and connected via the LIN bus to the footwell module.

The LIN bus is "looped through" the switch block of the driver's door. This means that the LIN bus cable is routed from the footwell module to the switch block in the driver's door. From the switch block in the driver's door, the LIN bus is routed further to the memory buttons and the door mirror.

The footwell module evaluates the button status and sends it via the K-CAN2.

The footwell module sends the button status via the K-CAN2 to the central gateway module. The central gateway module receives the signal and issues it on the K-CAN. The seat module evaluates the signal and initiates the storing of the memory position, when requested to do so.

Press the memory button to prepare for storing the memory position. The seat module sends the request to switch on the function indicator. From the function indicator, for example, the customer can recognize that the memory function is ready for storing.

Fig 1: F01/F02 LIN Bus Loop Through Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Pressing button "1" or "2" assigns the current position of the driver's seat to the pressed button. One memory position is available for each of the buttons "1" and "2".

Fig 2: Identifying Button Block In Armrests Of F01/F02 Driver's Side

Courtesy of BMW OF NORTH AMERICA, INC.

The data is assigned to the current ID transmitter as part of the Personal Profile, when the memory position is stored.

The button for the passenger-assist function is integrated into the armrest on the driver's side. This function is available in seat models with memory function.