Can Trailer Light Grounds Run To Main Ground on 4-Way Wiring Harness
Updated 01/05/2026 | Published 09/24/2024
Question:
If my utility trailer wiring harness has a full length white wire, do I still need to ground each individual light or can I just attach it to the white wire?
asked by: Mark D
0
Expert Reply:
Hello Mark; you can run a jumper over to the main ground wire if you want to. However, if some of your lights aren't functioning properly I would go ahead and ground them to the frame unless it is aluminum.
expert reply by:
Robin H
0
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etrailer Rubber Hitch Cover for 2" Trailer Hitches - Qty 1
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Robin H.
1/5/2026
Hey Mark, how did things go with grounding the lights on your trailer? Did connecting them to the main ground wire solve the issue or did you end up grounding them to the frame? Your update could make it easier for the next person with the same wiring setup.