Center Console Switch Center (SZM)
From 1999 MY E38, E39 and E53 vehicles are equipped with a SZM to control the front seat heating and provide a diagnostic interface with the DISplus/GT-1 via the K BUS.
The SZM directly controls:
- Front Seat Heating
- Rear Window Roller Blind
SZM also provides a unitized switching center for:
- Park Distance Control (PDC)
- Dynamic Stability Control (DSC III)
- Electronic Damper Control (EDC).
The switch signal output for these systems is a direct output signal. All diagnosis functions are carried out through their respective control systems.