Headlight Relay

[secretagent]

I'm going to be ordering a relay(s) to upgrade myheadlight in my 40 but really don't know what I'm doing with it. DI need a relay with 4 or five terminals, will 40/20 amp rating be good enough and how many relays do I need for high and low beam, one for low beam and one for high beam. What size wires are best to use?. Also I'm gong to install H4 headlights, do I need a diffrent connector for these lights? and lastly, can somebody post an idiots guide to wiring these (pics or diagram) such as this wire goes to this termional and so on. Thanks

 

[Poser]

ARB dealers sell a very nice pre-made harness that has three relays that is used in conjunction with thier H4 headlamp replacements...


M002 is the part number...


Someone must have one on hand...

Would be far easier, and less time and money in the end....especially since you are admitting that you do not know which wire goes where....


Good luck!


-Steve

 

[burnt03]

I'm probably going to wire some relays in when the snow melts here and it gets a little warmer. Here's a couple links I found useful...

http://www.6066gmctrucks.org/HeadLights.htm

http://www.SPAM website/useful_info/headlamp_wiring.htm

http://www.birfield.com/~morgan/tech/h4/index.html

 

[FLYINGLOW]

I'm going to be ordering a relay(s) to upgrade myheadlight in my 40 but really don't know what I'm doing with it. DI need a relay with 4 or five terminals, will 40/20 amp rating be good enough and how many relays do I need for high and low beam, one for low beam and one for high beam. What size wires are best to use?. Also I'm gong to install H4 headlights, do I need a diffrent connector for these lights? and lastly, can somebody post an idiots guide to wiring these (pics or diagram) such as this wire goes to this termional and so on. Thanks

4 terminals, as long as its a normally open relay, but 5 will work, one gets left untouched. The original plug will fit fine, but cause of 20 or more years of corrosion, I recommend you buy new ones, they're cheap enough. H4s rock! I would use 14 guage, I did use 12 for mine but that is overkill. Don't know where to get a wiring diagram. They are pretty simple, hook up your old head light high and low wires to activate the relay, get some fused power from a good source hooked up to the relays and hook em to your head lights. The relays I use have a little schematic on them to show you which terminals activate the relay and which ones the main power goes through. Clear as mud? PM me if ya want and I could draw something out for ya if you can't find it on line.