The electrical and software systems of all cars are
inspected by the FIA at the start of the season and the teams must
notify them in advance of any subsequent changes to the systems. All
teams must use the same FIA-specification Electronic Control Unit (ECU)
for controlling their engine and gearbox.
All software must be
registered with the FIA, who check all the programmable systems on the
cars prior to each event to ensure that the correct software versions
are being used. Electronic systems which can automatically detect the
race start signal are forbidden.
All cars must have an accident
data recorder. This is linked to a medical warning light positioned
ahead of the cockpit opening, which gives rescue crews an immediate
indication of the severity of an accident.
In the cockpit, every
car must have a track signal information display, which informs the
driver of circuit conditions via red, blue and yellow lights.