Control Module

The control module is located along the center line of the vehicle, generally in the area of the center console depending on model and year. It contains the following circuitry:

• Electronic acceleration sensor for crash detection.
• Processing electronics/final stages for airbag activation.
• Self diagnostics for self test and system monitoring.
• Internal mechanical safety switch - must close in conjunction with acceleration sensor before airbag activation.

Replacement control modules must be coded when installed in the vehicle using the DIS tester or MoDiC.

Fig 1: View Of MRS II Control Module

Courtesy of BMW OF NORTH AMERICA, INC.