Leave the bulbs in their sockets, then check for voltage on both terminals. If the twelve volts is gone, I will explain why a test light would be more accurate than a voltmeter. If you find twelve volts on both terminals, the ground circuit is open. Look for a cut wire, rusted ground connection on the body, or the ground wire is corroded off the socket.
Monday, May 8th, 2017 AT 12:10 AM