Structure and inner electrical connection

The accelerator-pedal module functions with induction. The two sensors receive separate 5-volt power supplies from the engine-management control unit, to which they also have separate earth connections. The electronic processing circuitry generates analogue voltage signals, reflecting the accelerator pedal's position, for use by the engine-management control unit. The sensor signals are transmitted to the engine-management control unit separately.

Fig 1: Accelerator-Pedal Module Circuit Diagram

Courtesy of BMW OF NORTH AMERICA, INC.