BMW 5 Series: Main bus systems
K-CAN
In the G30 the following K-CAN's are used:
- K-CAN2
- K-CAN3
- K-CAN4
- K-CAN5
The control units on the K-CAN5 are not displayed in the bus overview by the BMW diagnosis system ISTA. Diagnosis is performed via the Body Domain Controller.
All K-CAN data buses have a data transfer rate of 500 kBit/s.
PT-CAN
In the G30 the following PT-CAN are used:
- PT-CAN
- PT-CAN2
The gateway for the PT-CAN2 is located in the DME.
Both PT-CAN data buses have a data transfer rate of 500 kBit/s.
MOST
On the G30 the MOST system known from other BMW models with a data transfer rate of 22.5 MBit/s is used. The gateway for the MOST system is located in the HEADUNIT.
FlexRay
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FlexRay
- Dynamic Stability Control (DSC)
- Digital Motor Electronics (DME2) (8-cylinder engine)
- Transfer case
- Electronic Power Steering (EPS)
- Electric active roll stabilization front (EARSV)
- Digital Motor Electronics (DME) (4 & 6-cylinder engine)
- Body Domain Controller (BDC)
- Vertical Dynamics Platform (VDP)
- Electric active roll stabilization rear (EARSH)
- Rear axle slip angle control (HSR)
- Advanced Crash Safety Module (ACSM)
- Optional equipment system (SAS)
The FlexRay overview includes all engine versions and optional equipment. The DME (item 6) is used for 4 & 6-cylinder engines. On 8-cylinder engines the DME2 (item 2) is used. The terminating resistors for line termination are located in the DME control units and in the Body Domain Controller.
The FlexRay has a data transfer rate of 10 MBit/s.
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Ethernet
On the G30 the 2-wire OABR Ethernet (OPEN Alliance BroadR-Reach) from the G12
is used.
The Ethernet variant with 5 lines (4 data lines and 1 activation line) is still
used on the G30 by the
OBD2 in
Sub-bus systems
LIN-Bus
For a better overview, the LIN buses are divided up between several wiring
diagrams for the G30.
LIN bus overview in the door area
LIN-Bus
Body Domain Controller (BDC)
Exterior mirror, fr
Local CAN
In the G30 the following Local Controller Area Networks are available with
the corresponding
equipment:
Local CAN from electronic transmission control (EGS) to the gear
selector switch (GWS).
Lo
SEE MORE:
Road Sign Recognition
The Speed Limit Information function is known from the G12. Current top speed
limitations are
detected by the Road Sign Recognition system and displayed in the instrument
cluster or the Head‐Up
Display in the form of speed limit symbols.
Top speed limitation symbol shown in the instrument clust
ConnectedDrive Services
Functional requirements
Subscription to the optional Convenience
Plan.
The date setting on the Control Display is
current, see Owner's Manual for the vehicle.
Cellular network reception must be available.
ConnectedDrive Store
Concept
In vehicles with specific technical requirements,
various s
