Buses And Control Units In The E60, E61, E63, E64

In the E60, the K-CAN S and K-CAN P from the E65, E66 have been combined to form the K-CAN.

This means the E60 has the following buses: byteflight  , K-CAN, MOST, F-CAN, PT-CAN plus a local CAN (for the engine control system).

The central interface for exchanging data between buses is the safety and gateway module (SGM).

From September 2005, the bus structures of the E60 are modified as follows:

• No byteflight  data bus

  The SZL control unit is connected to the PT-CAN and no longer to the byteflight  .

  As before, the SZL control unit is connected to the F-CAN.

  Following control units are dropped together with the byteflight: 

  • SBSL: B-pillar satellite, left
  • SBSR: B-pillar satellite, right
  • TMBF: Door module, front-passenger
  • TMFA: Door module, driver
• ACSM is added.

  The crash safety system is controlled by a new control unit:

  ACSM: crash safety module

  The ACSM control unit is on the K-CAN.

  ("ACSM" = Advanced Crash Safety Module or Management)

• ALBBF and ALBFA are added.

  2 new control units for the active backrest width adjustment are added on the PT-CAN.

  ALBBF: Active seat back width, front passenger seat

  ALBFA: Active seat back width, driver's seat

• CA is added.

  A control unit for comfort access is added on the K-CAN.

  CA: Comfort Access

• KGM is added.

  As of September 2005, the data interface for the buses is the body-gateway module (KGM). The previous data interface for the buses, the safety and gateway module (SGM) has been dropped.

  The following functions are integrated in the KGM control unit:

  • Data interface for buses
  • Outside door handle electronics
  • Vehicle center satellite
  • micro-power module
• IBS: Intelligent battery sensor

  The IBS is connected via the bit-serial data interface (BSD) to the engine control unit. The IBS has been part of the power supply on the BMW 5-Series since start of series production.

• FLA is added.

  A new control unit for the main-beam assistant is added on the K-CAN:

  FLA: Main-beam assistant

• For US vehicles: IBOC is added.

  For US vehicles, a control unit is added to the MOST for analogue and digital radio reception.

  IBOC: Digital tuner US

• For Korea vehicles: KNAV is added.

  A control unit for the navigation system is added for vehicle in Korea.

  KNAV: Korea navigation system

  The KNAV control unit is connected to the MOST.

• A new control unit for the night vision assistant is added on the K-CAN:

  NVE: night vision electronics

• MPM dropped.

  No micro-power module (MPM) on the K-CAN. The KGM control unit performs the functions of the MPM.

• For US vehicles: RDC is added.

  For US vehicles, a new control unit added on the K-CAN for monitoring tire pressure has been.

  RDC: Tyre pressure control

• > E60, E61, E63, E64 from 09/2005: Buses and control units

From March 2005, the bus structures of the E60 are modified as follows:

• AHL discontinued:

  From March 2005, the AHL control unit (adaptive headlights) is integrated into the light module. The light module is connected to the K-CAN and the PT-CAN.

• The VTG is now also integrated: For the E60 and E61, an all-wheel drive vehicle is available. The control unit for the xDrive on the E60 and E61 is known as the VTG: Transfer case.

• > E60, E61, E63, E64 from 03/2005 until 09/2005: Buses and control units

To support the workshops, a description of the previous version of the bus structures on the E60 is also provided:

• > E60, E61, E63, E64 up to 03/2005: Buses and control units