2004 Other GMC Models 4 cyl Two Wheel Drive Manual
When I turn the lights on the left rear tail light does not work. If I push the brakes the lights work. I checked the bulbs and they were fine but I put new ones in and the problem still exists. I then put new tail light housings on and the problem still exists. I checked the fuse and nothing is wrong with it. The right rear works. What could the problem be?