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Guest Message by DevFuse

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Headlight trouble, '85 Brat

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32 replies to this topic

#26 jonas


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Posted 03 August 2013 - 04:15 PM

I just know when I fix this it will be something incredibly simple. Right?

#27 pressingonward


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Posted 04 August 2013 - 11:35 AM

I can almost guarantee you wired the H4s wrong. You have to change the wiring at the light because it is different than for the stock sealed beams. I had the same issues with my BRAT when I got it.


Here's my thread on the topic:



I can take a picture of my headlight connector if you need to see which wires go where. Otherwise you can just get an h4 bulb pinout diagram off of Google

#28 jonas


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Posted 04 August 2013 - 01:15 PM

OOPS! posted in wrong thread! Sounds exactly like my problem except i havent replaced my bulbs. I did plasti-dip my headlight retaining rings but i did nothing to the actual buckets. Would that be messing with the grounds? Maybe i just have crappy tired pins and need to re-pin? Everything was working fine for about a week after i dipped. thatnks for the imput. Every little bit gets me closer.

#29 jonas


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Posted 11 August 2013 - 10:00 AM

Good morning guys and gals! So I still haven't fixed my headlight problem. Been over every inch of my Brat. We have gotten very close. :wub:  Really all im left with is a faulty switch solution.


I have a switch from an '80 (thanks Mikaleda!) I could use, but the pins on the '80 switch harness are set up differently than the '85.

Now my question is if I re-pin the '80 harness so the wires correspond to the '85 pins, will this work or am I asking for trouble? This is really starting to suck. I love driving my Brat and my wife wants her Jeep back. B)

#30 Gloyale


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Posted 11 August 2013 - 09:24 PM

The relay for the Hellas is tied into the headlights? correct? so that they go out when the HI beams are on?  correct.


I believe the problem lies there.


What circuit is the coil of the relay tapped into (85,86 terminals)


And where is the 30 terminal supplied power from?


I guess I need to undertand how you've got the relay trigged. 


Also, how are you determining your headlight relays to be fine?

Edited by Gloyale, 11 August 2013 - 09:31 PM.

#31 jonas


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Posted 12 August 2013 - 02:05 AM

The hellas are not wired in ATM. I just had them wired from the battery, hadn't done a permenant install yet. I swapped the headlight relays with the ones from my '84. No change. I can't borrow the switch from the '84 because a couple months back the plastic male/female connector on the '85 headlight switch harness was toast, so i took that part out. I dont want to cut up my '84 switch.

#32 jonas


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Posted 18 August 2013 - 12:46 PM

Welp, gonna put it back together today. There is a shop close to work that I've noticed gen 2's at occasionally. Thanks everyone for all the imput. Unfortunately my problem wasn't resolved. I'll let you all know what happens.

#33 Mykeys Toy

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Posted 18 August 2013 - 02:15 PM

please do then maybe we can add it to the old gen database.

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