System Overview

Fig 1: CIC System Block Diagram

Courtesy of BMW OF NORTH AMERICA, INC.

CIC SYSTEM EXPLANATION CHART

Index	Explanation
1	Central information display (CID)
2	Car Information Computer (CIC)
3	User interface (BO)
4	Application software
5	Hardware

Fig 2: Bus Overview E9x And E8x (Not Including E83, E85, E86) Model Series, CIC

Courtesy of BMW OF NORTH AMERICA, INC.

BUS EXPLANATION CHART

Index	Explanation
ACSM	Advanced crash and safety management
CAS	Car access system
CDC	CD changer
CID	Central information display
CIC	Car Information Computer
CON	Controller
FS	MOST direct access
JB	Junction box
SDARS	Satellite radio tuner
TCU	Telematics Control Unit
TOP-HiFI	Top-HiFi amplifier
SBX-High	USB interface box High

Fig 3: CIC System Circuit Diagram, In E9x And E8x Model Series (Not Including E83, E85, E86)

Courtesy of BMW OF NORTH AMERICA, INC.

CIC SYSTEM EXPLANATION CHART

Index	Explanation
1	Instrument cluster
2	Dynamic stability control
3	Junction box
4	Central information display
5	Car Information Computer
6	USB Import/Export jack, glove compartment
7	Future antenna expansion
8	Microphone for hands-free facility
9	Controller
10	AF output for audio jack (standard equipment) if no USB Audio interface is installed
11	Antenna diversity module with antenna amplifier
12	MOST distributor in rear area
13	OBD interface (including Ethernet connection to CIC)
14	AF signals to speakers
15	MOST direct access
16	Footwell module
17	Steering column switch cluster