Turn Signal relay location on a 2013 Petrbilt 386

Good Morning Ladies and Gentleman,
Here is the long and skinny of it, My clutch went out at 400K I was working local so i limped the truck into the Peterbilt dealership. a week later Ta Da!!! new clutch. Buuut Noooww NO Turn signals on the tractor, No 4 ways on the tractor, the Only turn signal that is working is Passenger side trailer....head scratcher?!?
The only thing I can think of is maybe there is a harness that got unplugged next to the trans or is there a relay that i can check somewhere.
Thanks
Kevin

 

Ok Now remember I have: a 2013 Peterbilt 386 with a PACCAR motor and an Eaton 13 speed trans and 400K on the clock I checked and cleaned every single fuse, checked every single relay,
Then moved to the inside of the cab and removed the kick panel and checked all the fuses....all were good.
I tried to reset the code by cycling on -off with the key. I even looked behind the glove box like one of the service guys suggested for a a 3rd fuse box. On my 2013 Pete 386 there is NO 3rd fuse box behind the glove box just:
1. under the hood/driver side
2. under kick panel/ driver side
3.under the bed in my sleeper/driver side
Thats is IT for fuse boxes
everything else was in working order head lights. tail lights, brake lights.
So as I was about to give up and call a mechanic, I decided aww what the heck, so i grabbed my creeper out of the pick up and went under the truck to see if there was a cut wire/harness etc. I started at the duals and started working my way towards the transmission, checking the wires as i went. I made it to the drive line yoke at the rear of the trans/ driver side frame rail just before the or after the Bendix air dryer there is a small box that has two harnesses plugged into it I noticed that one of the harnesses that was not plugged in all the way and the plastic locking cap/ring was in the up position. So i reached up pushed the plastic lock and harness seated and plugged in. I almost couldnt believe my eyes I so excited that scurried my fat ### right out from under the truck and hit the 4way switch and all my turn signals and 4 ways were back in operation. Man... I was stoked!! Fixed it meself! I will get some better pix later on if people are interested in seeing what it was that was messing with my truck. Maybe this will help someone out there because im SURE im not the 1st guy that this has happened to.