XC90 AWD L6-3.2L VIN 98 B6324S (2007)
Headlamp Control Module: Programming and Relearning
Downloading software and replacing the control module
New software can be downloaded to the headlight control module (HCM).
When ordering software the vehicle's hardware and software are compared with Volvo's central database. If the comparison is correct the software is
downloaded to the control module.
If the comparison between the car and Volvo's central database does not correspond, then the database is updated with the vehicle's configuration. When
this is complete the software is downloaded.
For further information regarding downloading, see Design and Function, Downloading Software.