99 CH613 Sleeper Controls

[ckstreetman]

Does anyone know where to start on the sleeper climate controls/audio controls? I pulled the panel off the back wall and everything seems to be connected, I checked the fuses next to storage door and in front on the dash, no blown fuses. I don't get anything when i switch on in the sleeper. The copper tubes are cold and sweating and i can get very low static out of the speakers if i crank them up. Am i missing a fuse box somewhere or I'm just at a loss as to where to start. The whole unit isn't made by mack and I don't have the truck to be able to see who made it. 

[Joey Mack]

so you have probed for power in the sleeper and sleeper fuse panel, and there is none? outside on the firewall next to the steering shaft is a fuse box that has sleeper and trailer fuses. I think it the left row of maxi fuses...  jojo

[ckstreetman]

On 11/9/2021 at 6:38 PM, Joey Mack said:

so you have probed for power in the sleeper and sleeper fuse panel, and there is none? outside on the firewall next to the steering shaft is a fuse box that has sleeper and trailer fuses. I think it the left row of maxi fuses...  jojo

I for sure probed the dash fuses and the sleeper fuses, they all check out. I don't remember any on the firewall, maybe that's what I'm missing. 

[Joey Mack]

There is a black box, roughly 4x6"  next to the steering column, on the fire wall...  Open it up and get familiar with it.  The EECU is fuse 40 and the back-up light s is #41...  anyway, my point is that even though there is not a lot of fuses in there, they need to be clean and tight, because they are under the hood where a lot of things like ,,, dirt, water, oil, soot, coolant etc: that can get in there and F'up  you're truck...  Jojo