BMW 7 Series (F01/F02) 2008-2015 Service Manual / General Vehicle Electronics / Comfort Access
BMW 7 Series: Comfort Access
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Introduction
Keyless Vehicle Access
Using Comfort Access, the customer can unlock and open the vehicle without
active use of the ID transmitter.
Access to the vehicle can be gained from any point. It is importan
System Overview
Input/Output - Comfort Access
Fig. 1: Comfort Access Input/Output Diagram
COMPONENTS DESCRIPTION CHART
CAS 4 Car Access System 4
Footwell module (FRM)
Junction box electronics (JB)
Emergency sta
Functions
Function Overview
Comfort Access is divided into the following functions:
Passive Entry
Passive Go
Passive Exit.
ID transmitters are required for Comfort Access to function.
An ID transmitter co
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Operating Principle Of Optical Steering Angle Detection
Steering angle detection
The code disc enables a 4-digit digital code to be generated for each light
field. The 12- digit digital code is
formed by lining up the 4-digit digital codes. The steering-angle speed can be
ascertained from the changes to
the individual digital codes.
Fig. 135: Operatin
Central Information Display (CID)
The display used on the CIC system in known as CID (central information
display) and is similar to the one
used for the CCC. The diagonal measurement for the CID on the 1 Series and 3
Series remains the same as on
the CCC equipped vehicle at 8.8 inches.
The number of pixels of the CID has doubled
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