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the_mechanic
September 13th, 2017, 12:53
I am working on wiring up a few center console switches to some lights on the front and rear of my '95 XJ. My plan is for the ones on the rear to be triggered by both the back-up light circuit, as well as a toggle switch in the center console. I will be using two relays wired like shown in the picture here (try not to judge my diagramming skills too harshly :) lol): https://www.dropbox.com/s/uxf15p37nndmbk5/Back-up%20Light%20Relays.JPG?dl=0.

Based on my understanding of relays, it should not matter if one relay is getting power when inactive (i.e. lights active by toggle switch while B/U light circuit is not active). I am not very confident in my electrical prowess so I am hoping someone can confirm or deny my assumption here.

I am also looking to make one of the switches in the console turn on all of my lights as a "Zombie Lights" option. No reason for this, just for fun and to fill the extra switch hole lol Does anyone have some insight on how to best handle that? My original thought was an extra relay which goes to all lights but I feel like I might get some cross-feeding if I go that route.

the_mechanic
September 13th, 2017, 12:54
Worth noting: inputs from the battery will definitely be fused.

N8N_99xj
September 13th, 2017, 13:20
why not just use one relay and put a diode on the B/U light circuit connection to terminal 86 so that it doesn't get backfed by the toggle switch?

I'm assuming these lights will be down low? If they're on a roof basket or something I'm guessing you might get some disapproving looks from the local authorities.

the_mechanic
September 13th, 2017, 13:27
why not just use one relay and put a diode on the B/U light circuit connection to terminal 86 so that it doesn't get backfed by the toggle switch?

I'm assuming these lights will be down low? If they're on a roof basket or something I'm guessing you might get some disapproving looks from the local authorities.

I was going to try to avoid putting in diodes for simplicity's sake (in my mind).
But...as I am looking at this more and looking at the "Zombie Lights" wiring, the diodes may be simpler after all.

Yeah, they are mounted on the rear bumper.

lawagoneer
September 13th, 2017, 14:20
Diodes are much simpler than a military relay circuit.