This has me stumped. My park brake light is on and my signals wont work until i turn on my headlight switch and apply the brake pedal. As soon as i release the brake pedal the signals stop and park brake light comes back on. With the headlights on there is also a chatter coming from the 4 way switch. turn off the headlights it goes away but nothing works again... I am so confused and so in need of some direction... Thank you. PS. I changed the brake pedal switch and the brake pressure switch and nothing has changed.
My Park brake light wont go off.It will go off with lights on and brakes applied on 2002 Ford F-250 Super Duty
could be your combo switch
In agreement with goodguy,sounds like the multi-function switch.