Central Locking Button (CLB)

The Central Locking button is located in the iDrive Comfort Area as part of the IHKA control panel. However, the CLB is not processed by the IHKA, it has a direct connection to the CAS.

The button is a rocker switch that provides two separate signals; one for unlock and another for lock. The signal provided is a momentary ground.

The operation of the CLB remains the same as the previous E38:

Fig 1: Identifying Central Locking Button (CLB)

Courtesy of BMW OF NORTH AMERICA, INC.

• Central locking/unlocking of the doors (the fuel filler flap remains open).
• Removing a vehicle from double lock to central lock (emergency function)