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Home >> BMW >> 2019 >> X3 M40i >> Repair and Diagnosis >> External Pages >> Different car >> Section 576 (Functional Descriptions - F25 - Charging System, Anti-Theft, Body Electrical Systems) >> Body Electrical System - Functional Description >> Power management >> Brief component description >> IBS: Intelligent battery sensor

IBS: Intelligent battery sensor

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The intelligent battery sensor (IBS) is a mechatronic component with its own microcontroller for monitoring the battery condition. The IBS continuously measures the following values on the battery:

Index Explanation
1 Negative battery terminal
2 Intelligent battery sensor
3 Battery earth lead

For data transfer, the IBS is connected to the DME (Digital Motor Electronics) or DDE (Digital Diesel Electronics) via a local interconnect network bus (LIN bus).