The invention relates to a process of correction for determining, by a central unit that is provided with a receiver and that equips a vehicle, the longitudinal position, either on the front wheel assembly or on the rear wheel assembly, of emitters that are each mounted on a wheel of said vehicle. This process consists of, in a preliminary phase, determining and storing, for each wheel of the vehicle, a reference field level, received by the receiver and having for an origin an emitter that is combined with said wheel and that exhibits a given mean radiated power. Then, during each start-up of the vehicle and according to the process of the invention, the field levels that are received by the receiver are analyzed, and the location of each of said emitters is deduced therefrom; the analyzed field levels are compared to the reference field levels that correspond to the same location; the deviation between the analyzed field levels and the corresponding reference field levels is derived from this comparison, and the value of each analyzed field level is corrected by a value that is equivalent to the computed deviation, such that said analyzed field level is brought to the same level as the corresponding reference field level.