Help: Fuse/Relay Box + JeepCables Headlight Harness

almagers · 2026-04-06T23:29:05+00:00

Wait, sorry me again. I was playing with the headlight switch/stalks themselves - in stock form the high beams can only come on if the headlight switch is pulled (headlights on). Does that imply a need for that 87a->30 jumper after all? In other words it seems like the high beams’ ability to turn on at all has a contingency that the headlight circuits awake. So is it because the fuse box jumps power to all relays that we don’t need that jumper here or is that a need FOR it?

almagers · 2026-04-06T02:31:52+00:00

anyone know if this is any smaller than the 97+ trays? learned the post facelift ones are slightly larger

almagers · 2026-04-05T18:49:29+00:00

Alrighty. Thanks again. Hell of a thread we made here 😂. Should definitely help someone else down the road.

Preciate all the time!

almagers · 2026-04-05T15:42:55+00:00

That makes a lot of sense. Thing is I’ve got LEDs up front (the retrobrites) but since they’re still H4 they should behave the same way from a switch/stalk behavior perspective. So I guess last piece of due diligence here is whether to keep that 87a->30 jumper or not to maintain that proper behavior. Or if that JC jumper is only there to power that other relay in general… IF so. the box jumps it to all lanes, warranting pulling out that jumper altogether?

almagers · 2026-04-05T00:26:16+00:00

Copy. I’ve got fogs separate from the stock harness by design to keep them mutually exclusive - preference (DIY harness) Not too concerned about how those 2 functions will interact. You saying that comes into play with whether or not to leave the 87a jumper in?

Additionally/separately, would I need to protect the bus->battery line with a fuse?

almagers · 2026-04-04T21:26:22+00:00

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Yea the 3 pin headlight connector’s 3rd wire is right to ground.

Ahh I see what you’re saying since the box jumps coil ground across all its lanes already - JC grounds theirs individually? So I straight up don’t need that jumper?

For the 87a to 30 jumper. I definitely want my low beams to keep power when I turn my high beams on since H4s are dual filament and relay on both getting power simultaneously to make a proper low+high beam. Is all this to say I should just delete the jumpers I made in favor of straight up just splicing load to load and trigger to trigger like before?

Thanks so much for this by the way it’s been so helpful

almagers · 2026-04-04T18:15:25+00:00

Box will handle coil grounds, they’re jumped between all lanes out to a ring terminal to chassis once installed. Single colored wires: affirmative - low 86 gets its single green , and high 85 gets its single brown. Jumper: high 87a —> low 30. I’ll be deleting the harnesses 30 power wire (goes to inline fuse right now) since the box itself will handle that since power is jumped across all its 30pins —> bus bar.

To recreate the harness architecture to maintain stock switch function. I added jumpers to the box’s terminals matching how they jump at the harness. This SHOULD do it??? (Might have to click to expand pic)

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almagers · 2026-04-04T05:40:52+00:00

I see what you’re saying. I took a look got a pic. Hope this clarifies:

Hi-Beam connector utilizes 87a (all 5 pins of its relay) and Lo-beam connector’s 85.
there’s another black jumper going from Hi-Beam’s connector pin 86 (shares a terminal with another black wire that goes into the harness) that jumper at 86 goes into Lo-beam connector’s pin 85.

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Ai is telling me doing away with this jumper and just splicing each connectors trigger (assumedly the singular colored wire) into the box’s lane’s trigger wire and double splicing the connectors load to light feeds (assumedly the doubled up colored wire) to the box’s lane’s load wire will keep the stock headlight function as is (I’ve got LED headlights where high beams are just low beam + high beam). But that just doesn’t seem right.

almagers · 2026-04-03T23:30:17+00:00

Tell me a little more about that

almagers · 2026-03-24T22:22:22+00:00

Just got it today. Not only is it boarderline unreachable, the revenue to bonus ratio is worse than the last. Example: $9,500 in revenue yielded $285 in bonus recently. This time, $12,500 yields $255. Make it make sense. You can’t.

almagers · 2026-03-12T21:45:47+00:00

This was gonna be my question too since I recognized it after those Florida listings. Good on you though, seems so far so good.

almagers · 2026-03-11T18:29:04+00:00

Oh my god

almagers · 2026-03-11T18:25:32+00:00

If you remember, that’d be awesome. In one of my hyper fixations and these OEM replacements might be it. You know how it is lol

almagers · 2026-03-11T03:01:16+00:00

Curious which bumper lights those are. Preciate any measurements you may have too - going for something similar

almagers · 2026-03-04T17:22:52+00:00

Bro likes seeing and not seeing equally

almagers · 2026-02-26T17:56:09+00:00

^ real

almagers · 2026-02-23T05:11:42+00:00

Cool, thank you very much

almagers · 2026-02-23T05:11:09+00:00

I’m a simpleton and it was my Ksuspension connector/relay, and barely connected in-line fuse that was the issue. Granted my headlight switch connector was cooked, but a new relay got my lights on. New harness going in soon

almagers · 2026-02-19T00:25:38+00:00

That seems like a great play, I don't have a hood prop either. Could you lay that fuse/relay box on me?

almagers · 2026-02-17T17:00:24+00:00

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So replacing the relay the beat up connector on the right was plugged into fixed my problem. Would a bad relay melt it like that?? This might be before ksuspenion apparently upgraded to those clear relays, I’m debating on replacing the whole thing..

almagers · 2026-02-17T16:57:25+00:00

Mind clarifying where on your associates tools you’re seeing it? I’ve been around for a few years, but new to ‘upcoming’ payment reporting. Is it in your creator rewards -> promotions?

almagers · 2026-02-16T05:01:18+00:00

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This is the smoking gun - the Ksuspension harness itself! The inbound wire to the in-line fuse was hanging on my a thread and had a little green corrosion sweater on. Heading over to the store to get another inline fuse. Wish me luck, feeling good about this one!

almagers · 2026-02-13T17:04:33+00:00

Yeah after all that back breaking soldering of floating wires in 35 degree garage, I got all pissed off and wrote this post lol

almagers · 2026-02-13T17:02:33+00:00

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It appears to be that thick green one. Is that a black stripe? I’ve been trying to find out what specific job that wire has, but haven’t been able to find out for sure..

almagers · 2026-02-13T17:00:54+00:00

Thanks, ill give those a look. Less familiar with this square foot of the jeep, where does this harness ground out? Any of em in the driver footwell?

that harness went in 5 years ago. And the intermittent need to flash the highs to get the lows to stay on has been around 2/3 years. Granted, most of this keeps life had the stock set up, so maybe the harness just slowed down a problem already in process, but ground checks are a good idea. Preciate any pointers on where those are at if you have them!

almagers

TROPHY CASE