The problem is that the right brake lights are not working, but the center brake light and the left side brake lights are working as well. Both sides of the turn signals work and the running lights work on both sides as well. Doing a cursory check of all lights I find I have no brake lights. So I ran all of the air out of my system and the brake lights … 2011 freightliner m2 with no brake lights and cruise does not disengage when brake pedal is pressed.truck has a aava solenoid not a amu. We got stooped once or twice a week in that thing for one light or another being out. I am working on a 2007 Freightliner M2 single axle road tractor.Id number 1FUBCXDJ47HX48489 the right side brake light on the tractor will not work… If they are drawing too much power then switching to LED lights will solve that problem because they draw a fraction of the power compared to incandescent lights. Got my 98 W900 back from the shop and suddenly my brake lights are getting stuck on. When I left for the Freightliner service center this morning it was still dark and I realized that none of my rear or running or brake lights were working. Freightliner Owners Club. just not brake lights. My AC was corrected and all lights working. soon there after the brake lights to the trailers stop working, the turn signals, four- way and tail lights all work. No fun finding out the lights don't work from a state trooper! Join Date: Oct 2002. I'm hoping someone can give me a quick pointer on troubleshooting because I'm supposed to be heading for Texas tomorrow. Turn, running, and flasher lights work fine, so it appears the light fixtures themselves are OK. Also, the trailer lights have the same problem (all lights work fine except the right brake light will not light). --Just after my buddy and I got our licenses, he had a Simca, a French auto with ALL the switches on the steering wheel hub. That would cause the brake lights to stop working. I too had the same problem with my 05 Freightliner chassis. I replaced pig tail, replaced pig tail plug from truck checked fuses. the wife has a 07 freightliner coronado. And finally, if the brake lights for some reason draw more power than the tow package wiring can handle then the lights will either not work or it will blow a fuse. Posts: 2,300 Brake Lights not Working. If the pin slides out farther, the brake pedal could detach, making it harder to stop the truck. The first time I had this problem. All the Toad lights worked the rigs running, turnsignal, clearance lights worked but "Brake Lights" did'nt. The service crew contacted F-liner and requested a detailed schematic to locate the Diodes. 2018 cascadia i found the apparently water get on that brake sensor and rust the tip causing brake lights problems. she had the head light wiring harness replaced and also replaced fancy taillights. 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