Outer Limits 4x4 Board

i want to do a diy bit/experiance on a headlight upgrade loom



is it as simple as making a new loom to plug into the original light plug and hook in some relays and then go back to the lights???
or not


can i please have a diagram for this diy mod

thanks all

Has been dealt with before. Search for a few posts in this section by Drivesafe, he had all the wiring diagrams posted, and yes it is as simple as that, BUT some vehicles are negative (earth) switched, rather than positive switched.

yeah i found that out in my hilux, things are negative earthed, but patrols are normal way arent they?

this is what i made, will it work????

like this in paint form

hi mate that looks ok..
on nbs4x4 they have a wiring diagram i used.. i actually just finished it earlier this week.. well worth it.. oh and upgraded from sealed lights to halogen h4s.. sweet as

i wouldnt earth the original wires to the chassie rather to split it into 2 and run to both relays as the earth for switching and only earth the bulbs earth

its aford not a nissan wrote:i wouldnt earth the original wires to the chassie rather to split it into 2 and run to both relays as the earth for switching and only earth the bulbs earth

how would i do that???

smiley_smoke wrote:hi mate that looks ok..
on nbs4x4 they have a wiring diagram i used.. i actually just finished it earlier this week.. well worth it.. oh and upgraded from sealed lights to halogen h4s.. sweet as

yeah im not after brighter lights, im just giving it a go.

i got HID high and low beam headlights and spotties,why would i need to go any brighter

im just seeing if there could be a market for my style one

the original harness for one bulb has 3 wires
1/ low beam
2/high beam
3/ earth
so to make it more universal for positive and negatively switched headlights you dont want the original earth from the factory loom going to ground / or chassie
so you add another wire to the factory earth then run these to the relays (where you earthed them to the chassie )instead
so basicly the only wire going to earth is the one from the bulb ,this makes it universal for most cars

its aford not a nissan wrote:the original harness for one bulb has 3 wires
1/ low beam
2/high beam
3/ earth
so to make it more universal for positive and negatively switched headlights you dont want the original earth from the factory loom going to ground / or chassie
so you add another wire to the factory earth then run these to the relays (where you earthed them to the chassie )instead
so basicly the only wire going to earth is the one from the bulb ,this makes it universal for most cars

ok ithink i got it, split the old loom wires like you said, and put them to the earth leg on the relay, do i still have the relays earhted to the chassis or do i lt it earth out through the old harness??

you would earth the relays through the old harness not to the chassie