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Home >> BMW >> 2012 >> X5 35d >> Repair and Diagnosis (Single Page) >> Steering >> Steering Column >> Functional Description - Charging, Cooling, Fuel Supply, HVAC, Lubrication, Steering Systems >> Charging System - Functional Description >> Alternator >> Functional description >> Structure and inner electrical connection

Structure and inner electrical connection

The alternator has a separate terminal for the positive battery lead. The control variables (e.g. nominal voltage of alternator) are transferred to the controller via the serial data interface (BSD or LIN).

The regulator is attached to the back of the alternator.

Fig 1: Structure And Inner Electrical Connection - Circuit Diagram
G09841204Courtesy of BMW OF NORTH AMERICA, INC.
Index Explanation
1 Electronic component with controller
PIN REFERENCE

Pin Explanation
BSD/LIN serial data interface (BSD or LIN)
U Positive battery cable
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