510 headlight wiring

[SRSANDS]

yes I know this is a worn out subject and information has been given about how to do this over and over again.I myself was given a diagram at one time to relay my lights and I did it but for the life of me cannot find where I put it. I searched alot of stuff on the web and couldnt find it either :( I want to use two relays and redo my headlight circuit. Does anyone have a schematic I can follow again ??? Sory fellas. I have looked at the couple of schematics on the web like the audi one and the 510/1600 one but neither show the 510 harness colors ect. And I still stumble when understanding relays controling ground side of things

[ggzilla]

Datsun 510 already has a headlight relay doesn't it? My Datsun already has factory 12-gauge wiring for high beams.

[SRSANDS]

would like to use the ones i have installed....two bosch 30ampers.....bmw elipsoids and mercedes yellows...with higher wattage bulbs are too much for the stock setup

[DanielC]

I think the easiest way for you to use the extra Bosch relays you have is this.

 

Hook pin 86 on both of your extra Bosch relays up to either the red wire, or the red with a blue stripe wire, depending on what side to the car you put the relays. Hook pin 85 of one relay to the red with white wire, that is now your high beam relay. Hook pin 85 of the other relay to the red with black stripe wire, that is your low beam relay. These colors of wires are at your stock headlight plug.

 

Hook up fused battery power to pin 30 of both relays. Use separate fuses, and wires. That way if one fuse blows, you have the other beam to get to a stop and fix the problem.

 

Hook pin 87 of the high beam relay to the high beam lights, and the high beam part of the high/lo beam lights.

 

Hook pin 87 of the low beam relay to the low beam side of the high/low beam lights. Ground the common terminal of all four headlights. I would ground to the engine block, or alternator frame.

[housew]

Old thread i know, but i'm thinking this is what i need to do. Wouldn't it be wise to do this upstream of the existing headlight relay though, eliminate some room for error / redundant parts. seems that way you would have a signal activating a relay, which was activating a relay.

 

I think my relay is dead (has a terminal broken off i think for the high beams) so im looking to build a harness from just upstream of the relay. Or would i need to keep all that plugged in so my parking lights would still work.

[banzai510(hainz)]

SRSANDS?

 

wife left him and so did the car.

 

housew

fix the relay by getting another and then buy a H4 harness hook up to the stock harness on passenger side and your done. took me about 20mins

[housew]

werd, the more i stare at the diagram and think the more i think that's the easiest way to keep the colum mounted high beam switch without overloading it.

 

I found the stock relay on rock auto/napa, but they don't look anything like what i have, or even have the same amount of wires. But i think 2 wires are redundant so i could probably get away with the 5 prong they have listed if i could figure out how to wire in the new one.

[housew]

also found this dime quarterly article about cleaning / replacing them.

 

http://dimequarterly.blogspot.com/2011/10/tech-how-to-repairing-headlight-relay.html

 

supposedly the early ones (what i have) don't go bad often (mine has a broken wire) but nissan part number 25230-N4300

 from a 280zx is plug and play.

 

It wouldn't even be cheaper to wire up my own after i bought a relay, a socket, wire, and connectors.

[banzai510(hainz)]

I got this for my 510

http://www.4crawler.com/4x4/CheapTricks/Headlights.shtml#OnLineOrdering

 

These different version of this harness. 2 headlite as what I used and a 4 headlite. But most driving is on lowbeans and thats where the H4 lamp comes in to play. Your highs are already 50watts anyways. Only realson for a 4 would be if you ran BiGGER watt hight beams lit 80 or 100watts.

 

once installed it only uses enought current to trigger the stock relays to tell the new harness and the new relays to use more current and the wires are thick. the stock harness should not have a proplem again

[housew]

yea, my stock relay has a wire broken off, so i need to resolder, or rewire.

 

I'm moving to a high/low hid kit (hid low beam, halogen high beam) just in the outer housings and no high beam housings (just 2 lights with intake horns in the highs)

 

so with the HID kit i don't think i can rock switched ground, and since i'd have to fix my current relay to trigger the new relays that seems sillier than building a harness that just does what i want. I wrote up what i plan to do in my build thread, im going to try to start sourcing the sockets, relays, wires, loom ect soon.

[banzai510(hainz)]

if the all 4 lights go out on HIGH then its the relay contacks inside. most time its the contacks that carbon up.

bend tabs open to remove cover on can and ck to see contacks and clean with sandpaper.