Storage Mode

By switching "OFF" the battery switch, the Power Module goes into Storage Mode 30 minutes after terminal R switches off.

Fig 1: Switching OFF Battery Switch

Courtesy of BMW OF NORTH AMERICA, INC.

Before disconnecting, the PM sends out the "Shutdown" signal. After a further 90 seconds the shut down is completed. If the ignition switch is turned to KL R or KL15, a Check Control message is issued which informs the driver that the vehicle is in Storage Mode.

Fig 2: Displaying CC Message

Courtesy of BMW OF NORTH AMERICA, INC.

When the signal "15w" or change-over of the battery switch to "closed-circuit current monitoring" is detected, the Electronic Battery Master Switch is closed.

The vehicle can still be started and driven in storage mode. All systems remain functional. The CC message remains active.

When KL R "Off" is active, disconnection is carried out after 30 minutes (as explained above).

NOTE: If the battery switch is detected as defective, closed-circuit current monitoring will be activated.

If no function of any kind is activated over a period of 3 weeks, the battery is disconnected from the vehicle's electrical system to prevent battery discharge. This function is independent of the position of the battery switch.