00 Protege Check engine problem

Hi All

Have a 2000 Protege 1,6L 5 Spd that the check engine light came on. It runs fine as always. I have a cheap scanner tool that says P1170 Code O2 sensor but the car has two which one. I check the heated part of the o2 sensors and it is about 3 Omns Cold Is that right

any help would be great

Thanks