Head light relay mod write up....WOW what a difference - Page 16 - JeepForum.com
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post #226 of 409 Old 11-29-2012, 11:01 AM
Ciamonkey
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Ok thanks I think ill tackle this task next pay cheque, will make my hella conversions stellar

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post #227 of 409 Old 12-01-2012, 11:35 PM
rodgers3
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picking up suplies tomo
happy that radio shack and auto zone are about 1000 ft apart
hopefuly i can get all my parts for the upgrade
whats the estiment on the cost?
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post #228 of 409 Old 12-02-2012, 12:12 AM
Drix
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I will be finishing mine up tomorrow I am 20 bucks into so far mostly for relay's. I think I am gonna run a third relay to power both hi and low beams to a switch for on the trail.

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post #229 of 409 Old 12-02-2012, 10:45 AM
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did u cut the five wires on the switch?
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post #230 of 409 Old 12-02-2012, 10:47 AM
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Nothing gets cut at the switch, nothing gets cut inside the vehicle. Everything is cut at the headlight socket.

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post #231 of 409 Old 12-02-2012, 10:53 AM
rodgers3
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oh ok
so from the driverside headlight then where theres 2 green and a white with a red stripe and tan with red stirpe
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post #232 of 409 Old 12-02-2012, 11:16 AM
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Figure out which us ground and which is power for the low beam and which is power for the high beam.

Black 1993 YJ 4.0, 5 Speed
Slowly but surely getting better and better. Trailer build soon!!
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post #233 of 409 Old 12-02-2012, 11:21 AM
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Quote:
Originally Posted by rodgers3
oh ok
so from the driverside headlight then where theres 2 green and a white with a red stripe and tan with red stirpe
You'll need to figure out which is hi and low. Those two wires will go into two separate relays.

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post #234 of 409 Old 12-02-2012, 11:46 AM
rodgers3
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so i assume green is low and the white is high. from what is read in the first post. black is ground. so from what i understand i take green and run it to one relay on pin 86 then to the headlights off the relay pin 87 . repeat with the white wire on outher relay. then run the ground from the lights to a grounding point??
then run power to pin 30 with the fuse and ground the relays from pin 85. to the frame?
if this is right i think i got it...
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post #235 of 409 Old 12-02-2012, 12:49 PM
Drix
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The lights just need a ground. So long as you run power to one side of the plug and one to the top just run the other side of the light to ground.

I pulled the plugs out of the factory one and reused them. Here is a diagram I drew up of the head light plug. I will eventually reuse them and make a new harness to reuse the old factory plug.
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95' YJ 4" lift 33"x12.5r15's D30/8.8 locked with 4:88's
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post #236 of 409 Old 12-02-2012, 09:00 PM
rodgers3
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well i got my low beams done tonight
need more wire for my high beams
i think i did it right
it looks alot more chrisp white than fadded yellowish white.


before
forumrunner_20121202_215916.jpg


after
forumrunner_20121202_215941.jpg
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post #237 of 409 Old 12-19-2012, 06:25 AM
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just gettin into tackling this. got the lights wired just gotta get the switch wires over to the fuse box side near the battery and wire them into the OEM fuse box. since i dont have AC or ABS there are 3 empty spots for relays so im just gunna wire them into that. im wondering why noone else has mentioned just using the OEM box. instead of running a whole new box. will post pics when im done.
all new 12awg wire (bought 20ft using about that with little left over), 2 JY relays, and 2 inline fuses. $20

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post #238 of 409 Old 12-19-2012, 11:38 AM
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im wondering why noone else has mentioned just using the OEM box. instead of running a whole new box.
You're right. This was probably never mentioned because this writeup was intended for the novice level DIYer, as well as for the simplicity and the time frame in which to complete this task. I would also like to add that some of us on here don't have the luxury of having a PDC (relay center). I have contemplated using my empty relay slots when the winter is over and the weather is more favorable. With how I do things this would take me up to a week to modify, as that I am one to pull the looms, separate and run the wires, bundle them up, and re-wrap them.

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post #239 of 409 Old 12-19-2012, 11:52 AM
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Quote:
Originally Posted by remmons

You're right. This was probably never mentioned because this writeup was intended for the novice level DIYer, as well as for the simplicity and the time frame in which to complete this task. I would also like to add that some of us on here don't have the luxury of having a PDC (relay center). I have contemplated using my empty relay slots when the winter is over and the weather is more favorable. With how I do things this would take me up to a week to modify, as that I am one to pull the looms, separate and run the wires, bundle them up, and re-wrap them.
X2... If you do post up some pics. I'm looking to rid my engine bay of unnecessary wiring and vacuum lines now that's its been Nuttered.

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post #240 of 409 Old 02-12-2013, 01:05 PM
el scorcho
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...

Here's my "write up."

First I left all of the original wiring intact, except for a poor splice job I did on the right headlight after a fire some years back. I bought 2 new head light plugs; 3 different colored, stranded, 12 gauge wires; two 30 amp relays and one 30 amp maxi fuse. I used a power distribution center out of a Ford (lots of Fords used/use it) that I got out of a junk yard when I did the electric fan swap.

I switch the realys on and and off by running 16 AWG wire to the dimmer switch, located on the steering column under the dash. Since all I had was blue wire, I used a permanent marker to stripe one. The white wire on the dimmer switch is for high beam and the light green with black stripe is for low beam. I soldered the appropriate leads to the dimmer switch plug connectors and ran the new leads through the firewall into the fuse box to pin "86" on the corresponding relay. I didn't cut away any of the original wiring, just in case I couldn't get something right.

jeep-yj-258-dimmer-switch-mod.jpg

I ran the new 12 AWG low beam leads from each headlight back into the fuse box, and that's where they are soldered together and connected to pin "87" on the low beam relay. I did the same for the new high beam leads to the high beam relay. Both headlights share a common ground location; I reused the ground spot of the driver's side headlight.

headlight-right-back-mod.jpg

headlight-left-back-mod.jpg

8 gauge wire runs from the battery to the Ford fuse box, supplying power to all the fuses. Main power to pin "30" is shared by both realys coming from one 30 amp maxi fuse. Pin "85" on each relay is ran directly to a common ground.

power-center-mod.jpg
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electrical , h4 , head light , headlight upgrade , relay

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