Maybe someone here might know the answer. In wiring up the lights on my trailer how come when I turn the turn signals on all I get is a brighter light as if it were the brake light? When I turn the lights on everything comes on just fine, hit the brakes and the brake lights come on just fine. But when I engage the turn signal all I get is a brighter light.

I asked someone else and they mentioned to me that the problem they had with their turn signals was once the trailer is hooked up to the truck his turn signals flash extremely fast, but as soon as he unplugs the trailer his truck turn signals go back to flashing at a normal speed.

Any advice on either of these two situations?