51 21 150 Blocking, if necessary initializing, car key in immobilizer control module
WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Execution in diagnosis system:
→Service functions→
→Body→
→Locking and security functions→
→Remote control key
→Service functions→
→Body→
→Locking and security functions→
→Remote control key