Driver Door Module (DDM) / Passenger Door Module (PDM)

Downloading software and replacing the control module

New software can be downloaded into the passenger door module (PDM) and the driver door module (DDM). When ordering software, the hardware and the software in the car is compared to the information in the Volvo central database. If the comparison is OK the software is downloaded to the control module.
If the comparison between the car and Volvo central database is not OK, the database is updated with the car configuration. When this is complete the software is downloaded.
The window positions must be initialized again after replacing the control module. This is so that the new control module stores the top (closed) position of the window. Design Design
For further information regarding downloading, see Design and Function, Downloading Software.