Terminal letters will be on the connectors.

 

Sure, if you have both connectors
I only have an 07 harness, and therein lies the problem.

 

Why would you need the other harness? The connectors are the same. You just need to know the holes each signal wire goes in. Never mind. I see you don't get it.

 

If you get a replacement pigtail the pin id isnt always stamped on the connecyor, the same connector body is used for a few different things throughout the vehicle, maybe i dont get it either, but when i have to wire **** in from one connector style to another, i want both wiring diagrms both connector end views and will check, double check, recheck and before i plug anything in i will check it all again against the diagrams just to be sure its done right... and i dont care if its a 3 pin map sensor connector, or a 42 pin engine harness connector, better to be safe than sorry, less expensive to print off a couple extra sheets of paper to make sure you are only doing it once than to connect one wore to the wrong pin and fry something, becuase its a 12v signal where a 5v should be, or a 12v input into a ground... either would be bad and let the smoke out of something.....then you have to send it off to het the smoke put back in...

 

My 04 harness had different colors than the colors used on the newer connector. Something to watch out for.