Battery Isolation Switch: Notes
WARNING: This page does not describe the selected car, but rather 208 other vehicles, including the 2010 BMW Z4, 2010 BMW X6 M, 2010 BMW X6, 2010 BMW X5 M, and 2010 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
The Battery Isolation Switch provides the vehicle with separate battery systems for the vehicle circuits and the starting circuit.
When the isolation switch is open, the vehicle circuit battery is the only power source connected to the power distribution center.
When the isolation switch is closed the starter battery is charged and the vehicle circuit battery is boosted by the starter battery.
Modes of the isolation switch:
- Starting Mode:
- Normal Starting.
- Safety Starting.
- Driving Mode.
- Charging Mode.
- Sleep Mode.