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Home >> BMW >> 2010 >> 528xi Automatic >> Repair and Diagnosis >> Electrical >> Body Electrical >> Electric Signals - Overview >> Electronic Signals >> Transistor Function >> Modulated B-/B+ To Operate A Component >> Modulated B+
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Modulated B+

Fig 1: Identifying Output Function To Operate Component (Modulated B+)
G03389106Courtesy of BMW OF NORTH AMERICA, INC.

Output function to operate a component.

The motor is controlled by a transistorized function of the control module, which provides a modulated voltage at a specific frequency to the motor. The throttle position is changed by altering the Duty Cycle of the pulses.