General

General







A control module can be reprogrammed in two ways using VADIS/VIDA. Either different software can be downloaded or a customer parameter can be changed (via vehicle communication).

NOTE: Customer parameters are only programmed locally in one control module. Certain parameters have already been reprogrammed at the factory which makes this remedy very important.

The customer parameters are functions in certain control modules which can be modified or adjusted to the customer's wishes, for example the temperature of the heated seats or the duration of the interior lighting. It is important to read off the customer parameters before ordering software. These parameters are only stored in the control module and not in the Volvo central database.

Customer parameters are reset to the default value when new software is downloaded and must be reprogrammed after the download.

VADIS/VIDA vehicle communication is used to read off and programming the customer parameters.

Usually a fault in the car is due to hardware faults such as: loose connections, oxidation, open-circuits, short-circuits or other faults which can lead to defective function.

Software is not perishable and does not deteriorate with time. However the software may behave in an unexpected manner because of the difficulty of testing all the possible combinations in such a complex system. It may also be necessary to upgrade the software to meet legal requirements or movement to another market.

It is recommended that the VADIS/VIDA symptom input is used for fault-tracing. Suitable tests are also suggested for faults which do not generate a diagnostic trouble code (DTC).