BMW F48 Technical Training Manual page 9

F48￿General￿Vehicle￿Electronics
1.￿Vehicle￿Electrical￿System
Index
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The￿CAN￿buses￿are￿shown￿in￿the￿overview￿of￿the￿bus￿systems.￿The￿actual￿physical￿layout￿(topology)￿is
shown￿using￿the￿example￿of￿the￿K-CAN2.
As￿with￿most￿bus￿systems,￿terminating￿resistors￿are￿also￿used￿for￿protection￿of￿the￿K-CAN￿to￿avoid
residual￿voltages￿on￿the￿data￿lines.
The￿terminating￿resistors￿for￿the￿termination￿are￿located￿in￿the:
• Body￿Domain￿Controller￿and
• K-CAN￿terminators.
All￿other￿control￿units￿are￿connected￿at￿the￿K-CAN￿terminator￿without￿a￿terminating￿resistor.
Explanation
Body￿Domain￿Controller￿(BDC)
Integrated￿heating￿and￿air￿conditioning
Headunit
Controller￿(CON)
K-CAN￿terminator
Touchbox￿(TBX)
Audio￿amplifier￿(AMP)
Telematic￿Communication￿Box￿(TCB)
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