BMW E90 User Manual

Initial Print Date: 03/05
Table of Contents
Subject Page
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Primary Control Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Functions of Junction Box Electronics Control Module . . . . . . . . . .10
Functions of Footwell Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Functions of Roof Function Center . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Functions of Car Access System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Car Access System 2 - Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Car Access System 2 - Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . .18
Central Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Control Modules for Central Locking Function . . . . . . . . . . . . . . . . . . . .20
Car Access System 2 (CAS2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Footwell Module (FRM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Unlocking/Locking the Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Unlocking Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Locking Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Using Identification Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Center-Lock Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Mechanical Key/Spare Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Locking Button on Vehicle Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Opening the Trunk Lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Opening with Remote Control/Identification Transmitter . . . . . . . . .24
Opening with the Outer Trunk Lid Button . . . . . . . . . . . . . . . . . . . . . .24
Opening with the Inner Trunk Lid Button . . . . . . . . . . . . . . . . . . . . . . .24
Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Automatic Locking (Personal Profile) . . . . . . . . . . . . . . . . . . . . . . . . . .25
Selective Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Unlocking After an Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Location of Control Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Footwell Module (FRM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Car Access System 2 (CAS2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Junction Box Electronics Control Module (JBE) . . . . . . . . . . . . . . . .26
Components of Central Locking System . . . . . . . . . . . . . . . . . . . . . . . . .27
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Center-Lock Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Driver's Door Lock Barrel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
E90 General Vehicle Electrical
Revision Date: 04/05

BMW E90 Specifications

General

Display Type	LCD
Display Size	6.5 inches or 8.8 inches (optional)
Navigation System	Optional
Bluetooth	Optional (with phone pairing)
USB Port	Optional (depending on model year and options)
Auxiliary Input	Standard
CD Player	Standard
DVD Player	Optional (with navigation system)
iDrive System	Yes (version dependent on model year)

Summary

Central Locking

Control Modules for Central Locking Function

Identifies control modules involved in the vehicle's central locking system.

Unlocking/Locking the Vehicle

Details the procedures for unlocking and locking the vehicle using the central locking system.

Comfort Access

Control Modules for Comfort Access Function

Identifies the control modules that manage the Comfort Access system's operations.

Functions of Comfort Access

Outlines the primary benefits and operational advantages of the Comfort Access system.

Passive Entry

Describes the process of entering the vehicle without active key use.

Passive Go

Explains how to start the engine without inserting the ID transmitter.

Passive Exit

Details the function for locking the vehicle without active key use.

Power Windows

Control Modules for Power Windows

Identifies the control modules that operate the vehicle's power window system.

Opening & Closing

Indirect Anti-Trapping Protection

Anti-Theft Alarm System (DWA)

Control Modules for System Operation

Functions of the Anti-Theft Alarm System

Arming the Anti-Theft Alarm System

Electronic Steering Lock (ELV)

Control Modules for ELV

Operation of ELV

Unlocking the Steering

Locking the Steering