Center Console Switch Cluster (SZM)

The center console switch cluster (SZM) is connected by means of a 14-wire ribbon cable directly to the IHKA control module. The commands from the SZM are then transmitted via K-CAN to the corresponding systems.

The A/C control and operating unit is also responsible for activation of the LEDs for function and backlighting.

Fig 1: Identifying Center Console Switch Cluster

Courtesy of BMW OF NORTH AMERICA, INC.