Brake lights not working but other lights do I have a 10ft. Supreme service body on van
What is your question?
I noticed brake lights not working but other lights are except for right rear turn signal the lights are sealed units I checked under hood on fuse panel and did not find any fuses in place for rear lights on body is there an auxiliary fuse box on the body of van
How long has your 2011 Chevrolet Express 3500 had this problem?
Just noticed today while fixing the right turn signal
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Unfortunately, you're dealing with non-factory components on a service body, and that in itself has its own wiring diagram independent of the Chevrolet chassis and body. Ideally, you'll be able to reference a wiring diagram for the added body, but the other thing that can be done is that you can trace the wiring back from the lamps - verifying there is no power at the lamp in the first place. There could be circuit protection (fuses) somewhere, but without reference information or hands on inspection it'd be impossible to know where to look.
DaveJM thank you for taking the time to respond to my question I will definitely get a test light and see if I can find a short!