BMW F12 2011 Technical Training Manual page 52

F12￿Chassis￿Dynamics
5.￿Steering
F12￿12￿V￿operation￿of￿EPS￿in￿event￿of￿a￿fault
Index
1
2
3
4
5
6
7
LIN-Bus
The￿separator￿assumes￿the￿12￿V￿position￿before￿terminal￿15￿or￿if￿a￿fault￿develops.￿The￿auxiliary￿battery
is￿no￿longer￿connected￿in￿series￿and￿is￿disconnected￿from￿the￿circuit.
48
Explanation
Battery￿power￿distribution￿box
Battery
Intelligent￿battery￿sensor￿(IBS)
Auxiliary￿battery
Separator
Charging￿controller￿for￿auxiliary￿battery￿(Battery￿Charge￿Unit￿[BCU])
Luggage￿compartment￿power￿distribution￿box
Local￿interconnect￿network￿bus