Structure and inner electrical connection

The front electronic module (FEM) is connected to the vehicle with 9 plug connections.

To avoid confusion during connection, connector housings of the same color have different encoding. This prevents them being inserted in the wrong position inadvertently.

The input for the voltage supply of the FEM is a 1-pin plug connection.

Fuses for the following consumer units are installed in the fuse block of the Front Electronic Module (FEM):

• Central locking drive
• Outside door handle electronics
• Powertrain of the power window regulators
• Light operating facility, operating facility for the assist systems and steering column switch cluster
• Rear Electronic Module (REM) and headlight driver module
• Fanfare
  Fig 1: Front Electronic Module - Circuit Diagram

  Courtesy of BMW OF NORTH AMERICA, INC.

Pin assignments 

The graphic above shows only the supply and bus connection. The current pin assignment is recorded on the wiring diagrams in the ISTA diagnosis system (Integrated Service Technical Application). Click on the component code in the wiring diagram to activate the "Installation location" and "Pin assignment" tabs.