61 20 503 Vehicle battery - closed-circuit current monitoring (530i 2017-2022, 530i xDrive 2017-2022, 530e PHEV 2018-2022, 530e xDrive PHEV 2018-2022, 540i 2017-2022, 540i xDrive 2017-2022, M550i xDrive 2018-2022)

To access the battery earth lead, perform the necessary preliminary work described in the SERVICE INFORMATION Disconnecting battery earth lead.

Do not disconnect the battery earth lead!

NOTE: If several 12 V batteries are installed in the vehicle:
Closed-circuit current check is possible on the vehicle battery only .

Connect diagnosis system using an appropriate scan tool.

Connect the clip-on probe to the battery earth lead of the vehicle battery. The arrow on the clip-on probe must point towards the vehicle battery.

Measure closed-circuit current.