Medium and Heavy Trucks
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good afternoon my name is ***** ***** I will assist
did you check the brake light switch on the trailer??? when hooked to a trailer, there is a brake light switch for the tractor and one for the trailer.
it is part of the trailer. you would have to look around for it on the trailer. location varies according to manufacturer.
yes, it looks the same
yes, trailers have these switches. there is 12 volts supplied from the tractor to the switch and then air pressure completes the circuit and turns on the lights.
I agree with all the trailers. check the output at the tractor for voltage to the trailer. check all the fuses at the top of the dash on passenger side as well as behind the drivers seat.
no there is not.
I will opt out and re post for you to see if anyone else has any other ideas
Hi I'm Wayne
I will try to help you with this
is this a M2 F/L
Thank you for that
look under the truck on the frame rail
see if you have a electric box with modules and air lines
OK , that is fine
just between you and I and the gate Post , worked 34+ years as mechanic,
never seen a stop light switch on a trailer, not saying there is not, but I have never seen one