Back up lights
Asked by Cherokee21486 Feb 13, 2019 at 10:39 AM about the 2003 GMC Envoy 4 Dr SLT 4WD SUV
Question type: Maintenance & Repair
How do I fix my backup lights bulbs
and fuses are new
2 Answers
Diymechanic37 answered 5 years ago
Check your ground near the taillights look up the wiring diagram for your year make model and sub model
Thought this might help. You can see the fuse, upper left. Lower right should be for gmc. The top wire for back-up lamps in diagram is voltage. The bottom black wire in diagram is ground.