Having problems with my rear lights

Asked by Apr 07, 2017 at 10:16 PM about the 1991 GMC Sierra 1500 K1500 4WD Extended Cab SB

Question type: Maintenance & Repair

I'm having trouble with my break
lights blinkers and tail lights when I
turn my head lights on but when I
turn them off the break lights and
blinkers work what could be the
problem

1 Answer

19,815

Bad ground for the tail light circuit. Check for a good ground at the wire for each tail lamp connector & bulb sockets. Look for and check any/all grounds to frame near the rear of truck.

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