Which of the following is NOT a function of a vehicle computer?

The function of transmitting data wirelessly is not a primary role of a vehicle computer, as it typically deals with processing and controlling various aspects of vehicle operation. Vehicle computers are primarily designed to manage and optimize engine performance, including control of fuel delivery, monitoring engine parameters like temperature and pressure, and executing diagnostic tests to ensure proper functioning of vehicle systems. While some modern vehicles may include modules that can communicate wirelessly for telematics or features such as infotainment systems, the core functions associated with the engine control unit and other dedicated vehicle computers do not involve transmitting data wirelessly as a standard capability.