2015 ProStar temp sensor harness

[DPS567180]

Greetings all,
I have a 2015 ProStar with a Cummins ISX. I'm trying to replace the wiring harness for the ambient air temperature sensor. My sensor is located on the bumper and I tried to trace it back but ran into a big wire junction with a wire protector wrapped around it. I was wonqdering if anyone knew where it plugged in at so I can run it directly to that point without taking apart all the wire protectors. I have attached a picture of the harness.[/size]