INTRODUCTION
The  Central  Body  Electronics  (ZKE  III)  equipped  on  the  X5  includes  the  following  sub-
systems under the total scope of its control:
• Windshield/tailgate wiping/washing,
including windshield rain sensor (AIC).
• Interior lighting
• Central locking
• Keyless entry
•  Tailgate release
The following is an overview of new or changed features found on the X5 ZKE III variant. 
• Passenger’s  door  module  is  now  incorporated  into  the  passenger’s  door  switchblock
module.
• Sunroof module (SHD)  located on the K bus.
• The Central Locking system uses a new style door lock actuator with hall effect sensors
similar to E46.
• The  GM  III  is  responsible  for  the  Key  Memory  feature.    It  provides  the  added
convenience  of  identifying  users  of  the  vehicle.   Whenever  the  vehicle  is  locked  or
unlocked  via  the  FZV  keyless  entry  system,  a  unique  key  identification  signal  (key
number) is transmitted to the General Module.
The  key  identification  signal  alerts  the  GM  to  communicate  with  other  control  systems
over the K Bus to store (when locked) or reset (when unlocked) certain driver adjustable
settings  for  the  driver  using  the  specific  key.    The  GM  also  resets  certain  driver
adjustable settings that it controls directly.
• Power windows/Sunroof
• DWA alarm system 
• Mirror - adjustment/memory/heating
• Seat adjustment/memory
• Steering column adjustment/memory
• Consumer cut-off/sleep mode
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