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Home >> Mini >> 2017 >> Cooper Base, 2D Convertible, Automatic Trans >> Repair and Diagnosis >> General Information >> OEM General Information >> Functional Description (F57) >> Alternator >> 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.

G09841204Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Electronic component with controller
PIN ASSIGNMENT SPECIFICATION

Pin Explanation
LIN Serial data interface LIN
U Positive battery cable


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.

G09841204Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Electronic component with controller
PIN ASSIGNMENT SPECIFICATION

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