We report on magnetoimpedance (MI) measurements in the ferromagnetic Heusler compounds Pd 2 MnSn and Pd 2 MnSb in temperature ranges encompassing their Curie temperatures. In the ordered phase, spontaneous contributions to both the real and imaginary parts of the MI are identified below T c in experiments performed at zero applied field. Large variations of the MI are also observed when a static magnetic field is applied parallel to the current orientation.