Sunroof Switch

Mounted in the sunroof motor trim cover, the switch provides coded ground signals for system operation. The following signals are generated over three wires:

• Rest position.
• Slide open request (press and hold switch to first detent of open position).
• Automatic slide open request (press further to second detent and release).
• Tilt open (press and hold).
• Slide close request (press and hold switch - first detent of close direction).
• Automatic slide close request (press further to second detent and release).
  Fig 1: Identifying Sunroof Switch

  Courtesy of BMW OF NORTH AMERICA, INC.