This 2010 truck came in with three fault codes active. Instead of walking you through the testing, let's just go right to what was causing each code to set.
Here they are: P0522, P1281 and P0456
P0522 was a leaking oil pressure sensor.
P2181 was a poor connection at the coolant temperature sensor.
P0456 was a bad gas cap seal.
Now there was also a complaint of long cranking time at start, intermittently. These do have known problems with the fuel pump relay, which is built into the TIPM but the complaint could have also been caused by the poor coolant sensor connection. Since the problem hasn't appeared and since it could possibly be fixed via cleaning the connection, I've elected to do the wait and see option on that particular problem.
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