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Home >> BMW >> 2025 >> 230i >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> General Electrical System -- Repair (G42) >> 61 20 Battery Ground Cable, Power Reset >> 61 20 503 Vehicle battery - closed current monitoring

61 20 503 Vehicle battery - closed current monitoring

Preliminary work needed:

To access the battery ground lead, perform the necessary preliminary work described in the service information DISCONNECTING AND CONNECTING BATTERY GROUND LEAD  .

Do not disconnect the battery ground lead! 

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

Connect diagnostic system.

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

Measure closed-circuit current.