When I turn on my parking lights/headlights both filaments of the rear tail light bulb ignite. This makes the brakes useless if the headlights are on. A more simple way of putting it is the brake lights don’t work when I turn the headlights on. but like I said above, actually what is happening is the brake light and the tail light are ignited together when you turn on the parking lights/headlights. Any suggestions on how to fix this? Thanks in advance

Last edited by MattyG; June 08th 2019 10:56 am.