Posted 9/19/2018 05:34 (#6996025 - in reply to #6995827) Subject: RE: Truck brake lights on all the time.
If you replaced that switch, and it is not a faulty new switch, you have a brake valve stuck on or leaking by pressurizing it. Like said above, the foot valve or hand valve would be the place to look.
Truck brake lights on all the time.
