Specifications

45
Testing Testing Bus Systems
4.7.1 Bus Types
BMW vehicles use the following bus systems. Use the charts below for bus system application.
• M—IHKA climate control using smart stepper motors
• K—Body bus
• P—Peripheral bus (General, Door, Seat memory, and Sunroof modules)
• I—Information bus
• D—Diagnostic bus
• CAN—Controller Area Network
• K CAN P—K and P Bus integrated using a CAN bus
• K CAN S—K and S Bus integrated using a CAN bus
• MOST—Fiber optic communication systems
• BYTE FLIGHT—Fiber optic airbag system
• Pt CAN—Powertrain systems
• Lo CAN—Valvetronic control
• BSD—Alternator control
• Lin—IHKA, lamp control, driver’s switch block, tire monitoring
• F CAN—Active steering
• K CAN—Body systems
Table 4-16 1992–2002 bus system applications
Model M K P I D CAN
E31 8 Series YES YES YES
E32 7 Series YES YES
E34 5 Series YES
E36 3 Series
YES
(Z3 only)
YES
E38 7 Series YES YES YES YES YES YES
E39 5 Series
High Cluster
YES YES
YES (1997
and later)
YES YES YES
E39 5 Series
Low Cluster
YES YES YES YES YES
E46 3 Series YES YES YES YES
E52 Z8 YES YES YES YES
E53 X5
High Cluster
YES YES YES YES YES YES
E53 X5
Low Cluster
YES YES YES YES YES
Table 4-17 2002 and later bus system applications, part 1
Model M K P I D CAN K CAN P K CAN S
E65/66 YES YES YES YES
E60
5Series
YES YES
E85 Z4 YES YES YES YES
E46 YES YES YES YES