S60 T5 L5-2.3L Turbo VIN 53 B5234T3 (2002)
Control Unit: Description and Operation
Active On-demand Coupling (AOC)
Downloading software and replacing the control module
New software for the Differential Electronic Module (DEM) can be downloaded. When ordering software, the hardware and the software in the car
are compared to the data 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 control module is integrated in the coupling unit for the Active On-demand Coupling (AOC). If the control module is replaced, the control
valve/axial solenoid and oil pressure and temperature sensor must also be replaced.
