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Home >> BMW >> 2017 >> X3 sDrive28i >> Repair and Diagnosis >> External Pages >> Different car >> Section 671 (Functional Description - Information & Entertainment Systems) >> Information & Entertainment System - Functional Description >> Bang & Olufsen High End Surround Sound System >> System functions >> Electronic power-up

Electronic power-up

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

The High End audio amplifier is connected with "terminal 30" and ground for voltage supply. The audio amplifier is woken up using the MOST bus. The audio amplifier is active under the following preconditions:

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