Control Module Variant Encoding and Programming

The possibility exists that an incorrectly coded or programmed control module will cause system faults and or driveability complaints with no faults found.

This possibility should always be considered (prior to assuming a control module defective) and is easily checked by connecting the DIS/MoDIC and displaying the ID page.

Because of the interaction between the various control units of the Driving Management System, and the various specific model applications, the EML Control Unit is programmed and "coded" for the proper model application (E31, E32/34, E38). Coding is written into the software package of the Control Unit, and identified by the Software Code number. It is also used to identify any updates in the programming.