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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 Control Unit (PCU) >> Notes for Service department >> Auxiliary battery service function

Auxiliary battery service function

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After being replaced, the new auxiliary battery must be registered. A service function is available in the diagnosis accordingly:

Path: 03 body > voltage supply > auxiliary battery (PCU): Register battery replacement  .

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