How to Test an O2 Sensor P0031Test Heater Circuit With a Multi Meter Clear your check engine light

How to Test an O2 Sensor P0031Test Heater Circuit With a Multi Meter DVOM. 2 center pins in the 6 pin connector on the Infiniti G35 and other Nissan and Infiniti models is for the heater circuit, this test is for this code. o2 sensors still put out a variable voltage for o2 readings, this is not my code, my code is for the heater, this is what is causing my check engine light, A better video will be made, I really wanted to show those in need