I was wondering why my Nissan 720 turn signals and tailights are having problems. This is not a on and off problem its been happen for the past 4 months. I have checked all of the bulbs I have also checked all of the fuses. My brake lights stay on and will not turn off I have to disconnect the battery to shut them off and also when I press the brake the brake lights will not come on. And when I push up or down on the blinker my turn signals are not showing up on the dash and there is no blinker showing. I need help I checked the brake light switch I going to replace that and see if that fixes it but anyone has any helpful advice please let me know.