Removing and installing the ICM control unit
The ICM control unit performs tasks that are important for many vehicle functions, e. g. provision of sensor signals. If the vehicle were operated without the ICM control unit installed, a large number of vehicle functions would not be available. In the area of dynamic driving systems, for example, the Servotronic and stabilization functions would no longer be available. In addition, fault code memory entries would inevitably also be generated in many control units.
NOTE:
If the ICM control unit needs to be replaced, the repair instructions must be observed without fail.
For example, the vehicle battery must be disconnected before removing the control unit and reconnected following the installation. This is the only way to ensure synchronized restarting of the control unit assembly.
For example, the vehicle battery must be disconnected before removing the control unit and reconnected following the installation. This is the only way to ensure synchronized restarting of the control unit assembly.
NOTE:
Once the new ICM control unit has been installed, it must be started up with the assistance of the diagnostic system. To do this, the following steps must be carried out (depending on the equipment specification):
- Calibration of the sensors integrated into the ICM
- Calibration of the ride-height sensors
- Initialization of the Integral Active Steering.