Lexus Troubleshooting Questions? Ask a Lexus Expert
This is usually just an issue with the heaters in the 02 sensor. You can preform a resistance check on the 02 sensor heater to confirm.
??? I don't see you telling me this info anywhere, have you done a resistance check on the heaters with an ohm meter?
What would you like to do? I can continue to assist with diagnosing this issue?
Apologies, having these codes doesn't tell you the problem, it points to a suspected area for further inspection. The first inspection when you get these codes is to preform a resistance check at the actual sensor.