A motor vehicle lighting module including an optical axis, a first optical system with at least one first light source, the system being configured to form a first lighting beam along the optical axis, with a horizontal cutoff; and a second optical system with at least one second light source, the system being configured to produce, in combination with the first optical system, a second lighting beam along the optical axis, that is vertically more extensive than the first beam. The light sources have a variable lighting power varying between a high level and a low level, the first beam being produced at the low level of lighting power and the second beam being produced at the high level of lighting power.