Schematic Circuit Diagram - Exterior Lighting System, Front

Fig 1: Exterior Lighting System Circuit Diagram (Front)

Courtesy of BMW OF NORTH AMERICA, INC.

COMPONENTS DESCRIPTION CHART

Index	Explanation
1	Main headlight, left
2	Front fog light, left
3	Front fog light, right
4	Main headlight, right
5	Direction indicator repeater, right
6	Power distribution box, front
7	Power distribution box, luggage compartment
8	Integrated Chassis Management ICM
9	Ride-height sensor, rear
10	Central gateway module ZGM
11	Direction indicator repeater, left
12	Ride-height sensor, front
13	Car Access System (CAS)
14	Hazard warning lights switch
15	Control panel, light switch
16	Footwell module FRM
17	Steering column switch cluster SZL
K-CAN2	Body CAN2
FlexRay	FlexRay
LIN-Bus	Local interconnect network bus
KL. 30F	Terminal 30, fault switched

K-CAN2 signals at footwell module

K-CAN SIGNALS CHART

In/Out	Information	Sender/Receiver	Function
In	Crash signal	Crash sensor > Crash safety module	Interior lighting ON, hazard warning lights ON, Terminal 58g ON
In	Status, trailer module	Trailer socket outlet > trailer module	Trailer lighting
In	Outside temperature	Outside temperature sensor > instrument cluster	Outside temperature for calculation of the headlight overheating protection
In	Delayed switch-off home lights	Controller > Central information display	Switch-on time for the home lights function
Out	Driving lights status	Light switch > Footwell module	Trailer lighting ON/OFF (trailer module)
Out	Direction indicator	Turn-signal/high-beam switch > Footwell module	Direction indicator ON (trailer module)
Out	Direction indicator status	Turn-signal/high-beam switch > Footwell module	Synchronization flashing signal (e.g. display in the instrument cluster)

The lights control panel (15) includes:

The steering column switch cluster (15) includes: