The Footwell module switches the low-beam headlight on. To do this, the automatic driving lights control must be activated (light switch in switch position ”A”).Īt dusk, the rain-light sensor sends the message ”dusk”. Depending on the ambient lighting conditions, the Footwell module will switch the driving lights on or off. The rain/light sensor measures the ambient brightness outside the vehicle.
In conjunction with the LDM, the option ”Active Cruise Control” uses the ”turn signal” from the Footwell module to help when changing lanes. The lighting for the luggage compartment and the glove box lighting are connected to the junction box electronics. The Footwell module is connected to the FZD control unit via the K-CAN. The High variant of the roof function centre has its own control unit, the FZD control unit. The interior light and the rear-compartment interior light are activated via the Footwell module (FRM). The Basic variant of the roof function centre has its own control unit. The roof function centre is responsible for the components of the interior lighting in the roof area. On the basis of this recommendation and various other the input variables, the Footwell module decides whether the main-beam headlights should be switched on or off.
In accordance with the traffic situation, the high-beam assistant sends a switch-on recommendation or a switch-off recommendation for the high-beam headlights to the Footwell module (FRM). To do this, a signal must be sent from the DSC to the accelerator pedal module via the PT-CAN. When cruise control is in operation, the brake lights are actuated during automatic braking (legal requirement). The trailer module (AHM) is connected to the Footwell module via the K-CAN. This brings the lower area immediately around the vehicle, i.e. Automatic parking function: To improve the view of the kerb, the outside mirror glass is folded downwards when reverse gear is engaged. If a trailer is detected, the automatic parking function is disabled. the rear Park Distance Control (PDC) and the rear fog lamp on the vehicle. During trailer towing, the trailer module automatically disables e.g. The trailer module also controls the trailer lighting. The trailer module delivers the signal indicating whether a trailer is attached to the vehicle.
The belt handover on the passengers side is only activated when the front passenger seat is occupied. On the E92, the crash safety module sends a message regarding the front passenger seat occupation detection on the K- CAN. In the event of an accident, the FRM Footwell module switches on the interior light and the hazard warning lights automatically. The Footwell module is connected to the crash safety module / MRS control unit via the K-CAN. ACSM or MRS: Crash safety module / multiple restraint systemĮ81, E82, E87, E89, E90, E91, E92: Multiple restraint systemĮ70, E71, E93: ACSM (”Advanced Crash Safety Module”).The following is a list of all the control units involved in the lighting system, listed in alphabetical order: The BMW FRM Footwell module performs the following system functions:Ĭontrol units involved in the lighting system There is another 26-pin connector that goes to the dashboard. There are two 51-pin connectors for the main wiring harness. The BMW FRM footwell module is connected to the vehicle through 3 connectors. 2 belt feeder controllers (only on E92)Īny problems with the above functions on your car ? Get a FRM Footwell Repair.2 stepper motor controllers for the adaptive headlight stepper motors.The BMW FRM controls the following mechanisms: The BMW FRM receives signals from the following sources: The FRM receives signals from the doors, it controls the lighting, it commands the the adaptive headlights and it also interfaces with the dashboard.
#2006 bmw frm programming drivers#
The BMW Footwell module (FRM) functions as an electrical hub or a node in the footwell on the drivers side. Electrical engineers who are interested in reverse engineering BMWs.DYIers who want to develop their own device for BMW.Regular BMW owners who need to diagnose a faulty BMW FRM module.The information in this articles is meant for: This unit is also known as the Footwell module or the Lights module. In this article we discuss the BMW FRM module.
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