2011 explorer brake light headlight issue

[briansfordproblem91]

I have a issue when I turn on headlights the brake lights activate constantly but the third brake light works when I apply the brakes but the regular taillights stay on but if I turn off headlights the taillights and third brake light works fine I just need a direction to start to look for this issue electrical issues are not my strong suite also it doesn't matter if it is in auto lights or manual setting for headlights it does the same

 

[dvdswan]

Check for a bad bulb in the rear. Or did you install a single element bulb instead of a dual element bulb in the rear. Or one of the rear bulbs the element is touching the other element.

 

[peterk9]

I have a issue when I turn on headlights the brake lights activate constantly but the third brake light works when I apply the brakes but the regular taillights stay on but if I turn off headlights the taillights and third brake light works fine I just need a direction to start to look for this issue electrical issues are not my strong suite also it doesn't matter if it is in auto lights or manual setting for headlights it does the same

Welcome to the Forum.
As mentioned, check to see if there is an issue with the a filament shorting out.

Peter

 

[briansfordproblem91]

Check for a bad bulb in the rear. Or did you install a single element bulb instead of a dual element bulb in the rear. Or one of the rear bulbs the element is touching the other element.

No just bought it . It came wit

Welcome to the Forum.
As mentioned, check to see if there is an issue with the a filament shorting out.

Peter

I'll check that I will update later today thank you