Yes. It is actuated when the pedal is pressed. If you short across the wiring and your lights come on then the switch is faulty. If they don't then the problem is somewhere else and the switch may be fine. Some switches operate by the button being released when the pedal is moved away from it, some by a spring pulling on it that is attached to the pedal. Don't know which sort yours is but it usually is a cheap and easy fix if the switch does need replacing.Yes. It is actuated when the pedal is pressed. If you short across the wiring and your lights come on then the switch is faulty. If they don't then the problem is somewhere else and the switch may be fine. Some switches operate by the button being released when the pedal is moved away from it, some by a spring pulling on it that is attached to the pedal. Don't know which sort yours is but it usually is a cheap and easy fix if the switch does need replacing.
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Ford 250 350 1997 2004 Workshop Service Repair Manual Download
for the easy solution download the pdf file
Check the brake light activation switch
is that the switch on the brake pedal??
Yes. It is actuated when the pedal is pressed. If you short across the wiring and your lights come on then the switch is faulty. If they don't then the problem is somewhere else and the switch may be fine. Some switches operate by the button being released when the pedal is moved away from it, some by a spring pulling on it that is attached to the pedal. Don't know which sort yours is but it usually is a cheap and easy fix if the switch does need replacing.