Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hello I will help,
Do you have a voltmeter?
Great, can you check the yellow wire at the rear turn bulb socket connector and see if it has pulsating 12 volts while the turn signal is on?
If you get the voltage to the socket look in the wire harness attached to the trunk hinge for a broken black wire, if you get nothing there check the yellow wire in the same place.
Let me know how I can help
That can do it too.
Please let me know if you have further questions