Sleep Mode
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 isolation switch goes into sleep mode as soon as the engine is switched off. The current draw of the isolation switch drops below 1 mA. The isolation switch comes out of sleep mode if:
- KL15 is recognized.
- Starter battery voltage exceeds 13.8 volts (charging mode)
Failure of KATON signal:
If the KATON signal is not received due to:
- Open or short to B+ - isolation switch closes for 4 seconds after start-up, TD received.
- Short to B- - isolation switch opens 60 seconds after receiving TD.