regime of determination method of a starter of a combustion engine

The invention relates to a method for determining the regime of a starterof a heat engine, the startercomprising a pinionto be meshed with the ring gear of the engine flywheeland can be rotated using a electric motor. According to the invention: - the electric motorof the starteris supplied, then the power is off, the startersystem being in free fall, - the armature voltage Ui of the starteris measured during the free fallphase, and - the starterscheme is determined depending on the measured value of said armature voltage.