check engine light P0031 and traction control light

Help!!! My traction control light and check engine light came on at the same time. Doing some searches on P0031, it points to the Oxygen Sensor Heater. Based on searches that I did, I checked the two sensors, v6, on the exhaust manifold. The information that I had said that if there is conductivity between the two black wires, the sensor is good, which it was. I then swapped the heater relay with the fog relay, which I new was good, and that did not correct the problem. I am concerned because both lights came on at the same time. Any suggestions?

Thanks.

 

Trac light is on because the check engine light disables traction control. Replace that o2 sensor, and depending on your mileage, all 4 sensors should be replaced. Use Denso brand as they are the OEM brand.