1997 Nissan Maxima Smog test codes

Po110 intake air temp sensor circuit malfunction. Po600 dalta link connector failure. Change the IAT, located on or near the air filter housing. And the connector for the scan tool, is faulty and needs to be repaired, but do the other one first. Then rescan, the second code may not even come up or may be a false code, because I dont see how you can extract the first code and then it says it cant communicate.