P2A01 - 2007 Escalade how to fix this code

Question

I have a 2007 Escalade with a p2a01 code. How do I fix this?Where is the sensor located? Thank you for any help

Answer 1

P2A01 H02S performance Bank 1 Sensor 2

Bank 1 is where cylinder number 1 is located and along that this is Bank 1, Sensor 2 are catalytic monitor sensor,

 

 Here is a Cadillac 1500 series, , this coded a P2A01 , it was the only code store in the ECM. After replacing the 02 sensor a 02 resistance relearn had to be perfromed, To perfrom the 02 resistance relearn a scan tool is used, clear the code regardless if there is a code stored, this will put the 02 resistance  relearn . After the relearn was performed and the vehicle driven and all the monitor set, week later ,The CK ENG LT came on, This was a P0133 which is Bank 1 sensor 1 slow response. . What you should do when you have this code is clear the code. This will put the 02 sensor in a resistance relearn , from there if there is any other H02S code are set,  those should also be taken care of