any big rig mechanics out there?

[.40CalPatriot]

I have a freightliner FL70 sweeper truck that is giving me some problems. The brake lights won't work at all but all the other lights will. I know that all of the lights are good because I switched them out with another truck and it works just fine. I cannot find a wiring diagram or fuse box diagram anywhere online. Any help is appreciated thanks!

 

[DutchVDub]

The brake lights should be controlled by an air actuated switch on the brake valves at the pedal. Give me a call if you need some help.

720-891-6603

 

[DutchVDub]

It'll probably look something like this:

Jump the two wires and the brake lights should come on.

 

[eflores]

What year? Mercedes powered
We've had issues with the lighting modules on those....

 

[.40CalPatriot]

I beleive it is a 2004.

 

[.40CalPatriot]

Ding ding ding, we have a winner! Thanks Rich!

 

[DutchVDub]

Cool, what's my prize? You can have your shop buy me Clark's Jeep if you want.

Glad you got'r fixed.