Control Unit Identification

General Information:

Series Identification:

A separate set of disks is used for E31 series.

Every time a control unit is selected, the BMW DIAGNOSTIC SYSTEM checks whether a series E31 vehicle is connected. The tester initially checks whether an EKM (Electronic Vehicle Module) is installed in the vehicle.

If the EKM is defective or if data transfer is faulty, proceed in accordance with the instructions provided on the display screen.

Identification of Control Unit Version:

After selection of a control unit from the control unit overview, the BMW DIAGNOSTIC SYSTEM defines which control unit version (software version, country-specific version etc.) is installed and automatically allocates the correct troubleshooting program. If a different car or it a control unit has been changed, return to the general overview of control units in the BMW DIAGNOSTIC SYSTEM and reselect the corresponding control unit to ensure correct program allocation and to avoid incorrect displays.