needing help with wiring off road lights

geoyota760 · Sep 23, 2017

bagleboy said: ↑

I'd suggest bringing ground all the way back to the battery instead. Splicing into existing ground wires to carry loads isn't a good idea unless the wire you are splicing into is rated for all the current flowing through it and once you make a practice of doing it it's hard to keep track of what's been added where and complicating any trouble shooting. Grounding to the frame us common but frames are bolted together and rust so every frame connection between the device and the battery ground becomes a possible weak connection. Any connection has contact resistance that robs voltage and reduces output, most of the time it's not a problem but you can eliminate that concern with a return ground wire the same guage as the hot lead.
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Good stuff, thanks for the quick reply.

I suspect it is a possible ground issue, as I have a same gauge (10) ground running from the lights, but it is a spliced/shared ground back to a bolt underneath the hood. Going to rewire/re-ground and run singles from each light to see if that solves the issue.

bagleboy · Sep 23, 2017

Check the bolt connection to make sure you have contact to bare metal. Some of the tapped bolt holes have paint in the threads. Maybe wire brush any stacked lugs.

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needing help with wiring off road lights

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geoyota760 Allergic to pavement

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needing help with wiring off road lights

#21 geoyota760 Allergic to pavement

#22 bagleboy Well-Known Member

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#21
geoyota760 Allergic to pavement

#22
bagleboy Well-Known Member

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