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Wiring diagram, is this ok?
Mark G - 9/9/08 at 08:36 PM

Hi all

I'm making my loom at the mo and I've come to the lights, I just wanted to check this is ok before I go ahead and make the loom.



Two concerns of mine that I'd like opinions on. One is the fog light, should I run it off a relay? The second is the way I've powered the side lights when the headlights are on. Is this ok?

Indicator loom coming soon...

[Edited on 9/9/08 by Mark G]


yamapinto - 9/9/08 at 08:40 PM

If your out in the fog in a 7 i'd question your sanity rather than if you need a relay or not

We've not got a relay on ours espescially now we've got LED lamps.


Mark G - 9/9/08 at 08:47 PM

quote:
Originally posted by yamapinto
If your out in the fog in a 7 i'd question your sanity rather than if you need a relay or not



The day this thing passes the SVA I don't care if its snowing, I'm going for a drive!


Paul TigerB6 - 9/9/08 at 08:47 PM

What rating is your fog light switch?? The fog light will only be 21W or so wont it so only draw a couple of amps tops?


Mark G - 9/9/08 at 08:49 PM

quote:
Originally posted by Paul TigerB6
What rating is your fog light switch?? The fog light will only be 21W or so wont it so only draw a couple of amps tops?


I got it from premier wiring, looking at their website it should be 20amp.


adithorp - 9/9/08 at 08:50 PM

Thats pretty much how mine is. I did my dip/main beam differently. I used a relay for each and a changeover on/on switch to select/trigger one or the other; Swings and roundabouts!
Fog doesn't need a relay. Think my fog is on with dip-beam (as many tin-tops) but it's not anSVA requirement. Don't forget numberplate lights in the loom.

adrian


omega 24 v6 - 9/9/08 at 08:52 PM

looks ok apart from 2 things IMHO

Your main light switch should be able to handle around 6 amps to power everything as wired (includes a bit for safety).
Presumeably you have not shown any fuses for reasons of clarity?? I'd reconsider running all of the lights on both sides from 1 fuse.
i.e split the sidelights headlights and main beam into left and right. Personal choice that one, but at the very least split the side lights, as one problem will take out the fuse for both sides and voila your sitting at the roadside on a dark night


[Edited on 9/9/08 by omega 24 v6]


Mark G - 9/9/08 at 09:12 PM

As you guessed I left fuses out to keep it simple. I plan on using a seperate fuse for Side lights as opposed to headlights but will consider running seperate sides.


02GF74 - 9/9/08 at 09:32 PM

quote:
Originally posted by Mark G

The second is the way I've powered the side lights when the headlights are on. Is this ok?


interesting use of diode - you need to be awarethatthe diode will drop in region of 0.7 V so you will be converting power into heat as opposed into light. you can always put the side lamps on a relay to reduce that.

also do current through the diode to ensure it can cope.

if you had a dpdt throw switch, you can do away with the diode altogether.


Mark G - 9/9/08 at 09:56 PM

quote:
Originally posted by 02GF74
if you had a dpdt throw switch, you can do away with the diode altogether.


A what now for the who what?


adithorp - 9/9/08 at 10:07 PM

What sort of switches are you going to use?

adrian


Mark G - 9/9/08 at 10:10 PM

My switch pack is below. For the lights I was planning on using a on-off-on toggle. Having googled a dpdt it would make some sense to use one of them.

I'm going into maplins tomorrow after work anyway so I'll keep my eyes open whilst I'm in there.


adithorp - 9/9/08 at 10:30 PM

DPDT switches tend to be on-off-on which means going through off between side and head (and bulky). Durite do a toggle ligth switch. Its off-on-on and feeds one terminal in both on positions and the other only in the second on position. In other words... Off - Side on - Side+head on.

I've gt the number at work, I'll post it tommorow

adrian


Mark G - 9/9/08 at 10:31 PM

Sounds good,

Thanks


nstrug - 9/9/08 at 11:12 PM

I think you might have forgotten about the headlight flash - you need to be able to flash your fullbeams with no lights switched on at all.

Nick


adithorp - 10/9/08 at 07:30 AM

Durite side/headlight toggle switch is part No. 0-645-00 they cost me £7+vat.

With one of them you can do away with the diode, put dip and main on 2 seperate relays and switch trigger feed to them via an on/on toggle (dip/mian switch). You can then use a momentary on (headlight flash) to trigger the main beam relay from aswell.

Hope that makes sense. If you cant get hold of the switch I can get one and post it if need be.

adrian


sucksqueezebangblow - 10/9/08 at 08:23 AM

DPDT Double Pole Double Throw. In effect two switches in one.


Mark G - 10/9/08 at 06:44 PM

I've been doing some thinking and think that I'd like to keep with my switch as it matches the rest (sad I know), So with changing the first relay and also adding a relay for the main beam flash, I think this is good to be made.

Please correct me if its wrong as I'd rather hear it now than at the SVA center.

Cheers all


adithorp - 10/9/08 at 08:53 PM

Looks ok to me.

adrian