pulled some codes with a vag
17606 - O2 Sensor Heater Circ.,Bank1-Sensor2 Electrical Malfunction
17617 - O2 Sensor Heater Circ.,Bank2-Sensor2 Electrical Malfunction
could the 1st one cause the other two? If not, what could be causing these?
I got a CEL light last thurs, and went off fri morning, then came back on Fri night, off since sat morning. Any help is appreciated. TIA






