From the resistivity measurements of 3d metal intercalates MxTiS2 (M = Mn, Fe, Co and Ni; x = 0.05) at 4.2 K in pulsed magnetic fields up to 31 T, we have found that the residual resistivity depends on the kind of guess species. Taking into account these results and available information, we have proposed a possible band model to understand the scattering mechanism by ionized impurities of the intercalated guest M2+ and host Ti3+ ions, in satisfactory agreement with the experiments.