A cochlear implant system comprising: a cochlear electrode comprising a first contact electrode; a stimulator in electrical communication with the cochlear electrode, the stimulator comprising a first source element in electrical communication with the first contact electrode; a return electrode; and one or more controllers configured to: (a) apply an initial compliance voltage to the first source element; (b) cause the stimulator to emit a first predetermined electrical current from the first source element to the return electrode via a first current path; (c) determine a first voltage corresponding to a voltage at the first contact electrode relative to a reference voltage; (d) determine a second voltage corresponding to a voltage at the return electrode relative to the reference voltage; (e) determine a first impedance associated with the first current path based on the determined first voltage, the determined second voltage, and the first predetermined electrical current emitted from the first source element; and (f) determine a first compliance voltage for the first source element based on the determined first impedance and a first prescribed current for the first source element. a cochlear electrode comprising a first contact electrode; a stimulator in electrical communication with the cochlear electrode, the stimulator comprising a first source element in electrical communication with the first contact electrode; a return electrode; and one or more controllers configured to: (a) apply an initial compliance voltage to the first source element; (b) cause the stimulator to emit a first predetermined electrical current from the first source element to the return electrode via a first current path; (c) determine a first voltage corresponding to a voltage at the first contact electrode relative to a reference voltage; (d) determine a second voltage corresponding to a voltage at the return electrode relative to the reference voltage; (e) determine a first impedance associated with the first current path based on the determined first voltage, the determined second voltage, and the first predetermined electrical current emitted from the first source element; and (f) determine a first compliance voltage for the first source element based on the determined first impedance and a first prescribed current for the first source element. (a) apply an initial compliance voltage to the first source element; (b) cause the stimulator to emit a first predetermined electrical current from the first source element to the return electrode via a first current path; (c) determine a first voltage corresponding to a voltage at the first contact electrode relative to a reference voltage; (d) determine a second voltage corresponding to a voltage at the return electrode relative to the reference voltage; (e) determine a first impedance associated with the first current path based on the determined first voltage, the determined second voltage, and the first predetermined electrical current emitted from the first source element; and (f) determine a first compliance voltage for the first source element based on the determined first impedance and a first prescribed current for the first source element.