P1125 GMC - What part am I actually getting fixed in this case?

Question

I also have three other codes associated with this one: P2138, P2125, and P2120. I've been to five different places and no seems to be able to help!

Answer 1

P2138 Accelerator pedal position (APP) sensor 1-2 correlation

P2125 Accelerator pedal position (APP) sensor 2 circuit

P2120 Accelerator pedal position (APP) sensor 1 circuit

When P2125 codes it usually sets P2138, When P2120 it usually set  P2138, and P1125, You can just be looking at one problem . Use this TSB as a starting point for the solution. TSB bulletin #  08-06-04-041B titled Electrical P2138/P1125/P2101/P2120/P2125.What this TSB is about it the electrical connector tends to get moisture or water inside its electrical connection.

 Here the connection, disconnect, dry if moisture is found .

 Heree the finished conection, which is now waterproof and moisture proof