Functional description

The footwell module (FRM) is the master control unit for the exterior lights. That means: All lighting functions are controlled by the footwell module (FRM).

On request from the footwell module (FRM) the LED main light module controls the relevant lighting functions. The footwell module (FRM) sends the request in the form of a message on the K-CAN2. The central gateway module (ZGM) forwards the message on the K-CAN3 to the LED main light module on the left (LHML) and LED main headlight module on the right (LHMR). The following graphic shows the LED main light module on the left (LHML) using the example of the F01 with LED headlight.

Fig 1: Identifying LED Main Light Module

Courtesy of BMW OF NORTH AMERICA, INC.