BMW 7 Series: Electronic Power Steering
ADJUSTMENT/INITIAL OPERATION FOR ACTIVE FRONT STEERING
NOTE: Adjustment/start-up of the active steering must be carried out:
- Before adjustment work on the front axle/steering
- After work on the steering column
- After replacement of following components:
- Active front steering control unit
- ICM control unit
- Steering-column switch cluster (SZL)
- Steering gear
Connect vehicle to BMW diagnosis system.
Select and carry out initial operation/adjustment for active front steering under Service functions.
REMOVING AND INSTALLING/REPLACING CONTROL UNIT FOR ACTIVE FRONT STEERING
IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION).
Necessary preliminary work
- Disconnect BATTERY EARTH LEAD
- RELEASE LEFT FRONT SEAT and tilt towards rear
- Remove front left DOOR SILL COVER STRIP
- Remove footwell SIDE TRIM PANEL on A-pillar
- Remove cover of BASS SPEAKER at left front
Fold back front left carpet to one side.
Unscrew nuts (1).
Tightening torque 32 43 1AZ.
Installation note: Secure grounding strap (2) to screw fastening point.
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Fig. 180: Identifying Strap And Nut
Release screws (1).
Tightening torque 32 43 2AZ.
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Fig. 181: Identifying Screws
Disconnect plug connections (1) and remove control unit.
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Fig. 182: Identifying Control Unit Plug Connections
After installation
- Replacement only: Carry out PROGRAMMING/ENCODING
- ADJUSTMENT FOR ACTIVE STEERING
STARTUP OF ICM CONTROL UNIT
NOTE: Startup of ICM control unit must be carried out:
- After replacement or removal and installation of ICM control unit
Connect vehicle to BMW diagnosis system.
Select and carry out startup of ICM control unit under Service functions of BMW scan tool.
READ NEXT:
Adjusting Brake System
Proper adjustment of the brake system is only possible if the brake Bowden
cables and all brake system
moving parts move freely and are ready for operation.
The wheels must be completely fitted and
SEE MORE:
System Overview
Schematic System Circuit Diagram - Interior Lighting
The system circuit diagram follows the description below and provides an
overview of the full extent of all
possible interior lighting options.
The status of the door contact (Hall sensor) in the lock (38) changes, for
example, when the door is
Components
Active Roll Stabilization (ARS)
Control Unit
The VDM control unit is located in the passenger compartment near the
right-hand A-pillar. The VDM control
unit receives its power supply via Terminal 15N and is protected by a 5A fuse.
The VDM control unit is
activated exclusively by the Car Access Sys
