P2237 on my 12 ford f150 ecoboost what is wrong? O2 Sensor?

Code is P2237 - O2 Sensor Positive Current Control Circuit Open Bank 1 Sensor 1. I have a new O2 Sensor but I do not want to use it unless I know for sure that s the case as I can't take it back once I plug it in.

Heres the code and possibly fixes. And no you can't return after you used unless its defective…http://www.autocodes.com/p2237.html

So tell me just how are you going to be sure if that's the problem or not if you don't have a mechanics scan tool to read the voltage outputs of the 02 sensors?!

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