Need help with codes I am getting off DIC

Can anybody help me with this code I am getting. It is P0135 and according to my code list it is Heated Oxygen Sensor (HO2S) Heater Circuit Bank 1 Sensor 1. I am also getting U1255 Serial data Line Malfunction. What are they and how do I correct the problem?
Thanks
Bobby

[Mr. Lucky]

"Bank 1 Sensor 1" = forward oxygen sensor on driver side

Here is the troubleshooting info for P0135 on your model year:
http://www.gearchatter.com/viewtopic10247.php

Don't worry about the U1255 for now. It is most likely unrelated. Is it even a current code ("C" suffix)?

GL!

Thanks for your help.

Originally Posted by Mr. Lucky

"Bank 1 Sensor 1" = forward oxygen sensor on driver side

Here is the troubleshooting info for P0135 on your model year:
http://www.gearchatter.com/viewtopic10247.php

Don't worry about the U1255 for now. It is most likely unrelated. Is it even a current code ("C" suffix)?

GL!