Gold Founding Member
Join Date: Aug 1998
Location: 30.1298228, -97.9771166
Re: 69 Turn signal/brake light issues
The bulbs in the front and rear light housings have two elements - one for the park or running lights (dim) and one for the turn signals (bright). I start with the hazard lights to see if the lights come on. They are on a separate flasher unit and work without the ignition on. I check the brake lights, check the parking lights. Take an inventory of what works and what doesn't. Sometimes process of elimination you can guess where the problem is. Otherwise, start on the end and work to the start of the circuit or vice versa. Power to turn signal switch, power out of turn signal switch, power in and out of the brake light switch, etc. Don't overlook the grounds either.