On most vehicles, the brake lights are part of the rear turn signal circuit. In addition, if you have a 1986 or newer model, your car is equipped with a light mounted at the bottom or top of the rear window. This extra stop light is not part of the turn signal circuit. Consider looking at the back light turn signal diagram at www.chuckschevytruckpages.com/80hlightschematic.html on the
. troubleshooting steps. You need an elementary understanding of electrical circuit operation, but if you want to learn basic circuit repair procedures, this guide will help you.
