After replacing the PSE control modules (A37), the following coding must be performed, the menu item 5 appears on the HHT's display.
Only after programming is the ATA function activated in the PSE control module (A37). The programm is menu-driven. Access to version coding is via: Body and Accessories - ATA - Version Coding

Proper version coding is required for the proper indication in the Actual Values and Activation menus', as well as in DTC memory.