During the first four Grands Prix of the season, drivers were forced to compete without cockpit warning lights and had to rely on race engineers to inform them of DRS usage under yellow flags, as the link between race control and the cars had failed.
However, with a break of almost three weeks between the most recent round at Sakhir and Formula 1's arrival in Europe, a solution is expected to have been found.
"We've been told they've got an upgrade which is going to Barcelona and then it'll be working from there," Derek Warwick, who has acted as the driver representative steward on a number of occasions, explained to the Reuters news agency.