General

General







A control module can be reprogrammed in two ways using VIDA. Either by downloading other software or by changing a customer parameter (via vehicle communication).

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.

Reading off and programming the customer parameters is carried out using VIDA vehicle communication.

A fault in the car is normally due to a hardware fault, such as: loose connections, oxidation, open-circuit, short-circuit or other faults that can cause incorrect function.

Software does not wear out. The function of the software does not degrade over time. However an unexpected aspect of the software may occur because of the difficulty of testing all the possible combinations in such a complex system. Software may also be required to be upgraded by statutory requirement or when moving into another market.

It is recommended that VIDA symptom input is used when fault tracing where suitable tests are suggested, even for faults which do not generate a diagnostic trouble code (DTC).