Hello everyone, new to the site. I have a 2012 IQ and ran the codes due to the check engine light coming on. I'm getting a code for the O2 sensor and a code that say "low voltage bank one sensor 2". Not sure if the two are related and need some advice. Replacing the O2 is pretty straight forward but I'm not sure how to pursue the low voltage issue. I've been having issues with the "maintenance required" and "trac off" lights coming and going for the past couple of months. Could the low voltage issue cause this? Any ideas on where to start other than the O2 sensor which I'll be replacing soon? Thanks in advance for the help.