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Anyone know where the module, etc. for the high mount brake light is on a 2005 F250? Or where that power comes from? Third brake light has quit working, all other lights OK. Only around 1.5 volts at the high light when brake pedal depressed.
Thanks
As near as I can tell from the diagrams, the center brake light is connected directly to the brake pedal position switch on the brake pedal.
It appears there are two switches combined into the brake pedal position switch. One goes to the PCM and the other goes to the center brake light and the turn signal multifunction switch.
The wire coming from the brake pedal switch going to the stop lamps is light green.