Power window switch

The passenger's door and the rear doors are equipped with separate power window switches. The power window regulator on the front passenger door sends its signals to the front electronic module (FEM). The power window regulator of the rear doors send their signals directly to the rear electronic module (REM).

The power window switches are supplied with power by the front electronic module (FEM with the locator lighting (terminal 58g).

Fig 1: Power Window Switch And 4-Pin Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.