System Circuit Diagram for Electric Motor Driven Reel

Fig 1: Electric Motor Driven Reel - Circuit Diagram

Courtesy of BMW OF NORTH AMERICA, INC.

ELECTRIC MOTOR DRIVEN REEL LEGENDS

Index	Explanation
1	Dynamic stability control DSC
2	Central gateway module (ZGM)
3	Car Access System (CAS)
4	Crash safety module (ACSM)
5	Junction Box
6	Control unit, electric motor driven reel, left
7	Electric motor driven reel, left
8	Integrated Chassis Management
9	Control unit, electric motor driven reel, right
10	Electric motor driven reel, right
11	Luggage compartment junction box

Bus signals 

BUS SIGNALS REFERENCE CHART

In/out	Information	Source/sink	Function
In	Terminal control	CAS > EMA LE/EMA RI	Status terminal 30b
In	Vehicle speed	DSC > EMA LE/EMA RI	Vehicle speed
In	Braking torque	DSC > EMA LE/EMA RI	Emergency braking detection
In	Yaw speed	ICM > EMA LE/EMA RI	Detection of skidding tilt
In	Steering angle effective at the front axle	ICM > EMA LE/EMA RI	Steering effort
In	Longitudinal acceleration	ICM > EMA LE/EMA RI	Acceleration
In	Lateral acceleration	ICM > EMA LE/EMA RI	Lateral acceleration
In	Accelerator pedal angle	DME > EMA LI/EMA RE	Driver power request
In	Belt contact status	ACSM > EMA LE/EMA RI	Information whether the seat belt is fastened
In	Door contact	FRM > EMA LE/EMA RI	Information whether the doors are closed