An enriched chromium oxide layer on stainless steel AISI 316LVM was obtained by means of current pulse anodizing process (CPAP) through repetitive chronopotentiometry. Samples were treated varying current pulse width for both anodic and cathodic current. The characterization techniques SEM, Raman spectroscopy and AFM were employed for identifying thickness, surface morphology composition, and topography of the coating. Nyquist and Bode's diagrams obtained by Electrochemical Impedance Spectroscopy in a simulated body fluid solution (SBF), showed two-time constants associated with the electrochemical double layer electrolyte/oxide layer and to the oxide layer respectively. EIS data were fitted and represented by an equivalent circuit determining that circuit resistances for the coating obtained with a cathodic current pulse width (CPW) were higher than the ones obtained by anodic current pulse width (APW), showing an increase in the biomaterial resistance.