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Wanted simple lighiting diagram
INDY BIRD - 13/1/12 at 10:19 PM

Hi all need to do some wiring on my bros car and need a simple wiring diagram as need to put in front and rear lights,

I have purchased a switch from CBS that says does not require relays if that helps or not,

Any thing you can add or a diagram would really help and please keep it simple if you can,

Thanks all Sean

daniel mason - 13/1/12 at 10:28 PM

what switch have you got sean? and what are you wanting?
sides.dipped,main to front
stop,tail fog,reverse to rear?
i prefer to wire through relays if using stalks and switching the -ve to energise the relay coil to avoid arching and burning out switches!

INDY BIRD - 13/1/12 at 10:41 PM

Hi this is the switch I have,

As you said front lights sides dip main and rears ,

Will run a separate fog light,

Thanks for any help
Sean

Link

http://www.cbsonline.co.uk/mobile/product/Large_Rotary_Headlamp_And_Horn_Switch_HL-HSW

[Edited on 13/1/12 by INDY BIRD]

daniel mason - 13/1/12 at 10:54 PM

i would still use relays for each circuit mate but its up to you.
i would wire a permanent +ve feed to relay, a +ve link from live feed to one side of relay coil,feed from other side of coil to light. then take a -ve to trhe switch and from the switch to the relay -ve so its not switching +12v

INDY BIRD - 13/1/12 at 11:03 PM

Ok I'm lost now not that clever with elecs and lays never worked with them all cars I've done had a complete loom easy then,

Also what does ve stand for sorry bit thick tonight,

I will try to find a diagram that's why I got that switch thought to make it simple but perhaps your right to go with a relay just don't know how they wi up, thanks anyway,

daviep - 13/1/12 at 11:16 PM

quote:
Originally posted by daniel mason
i would still use relays for each circuit mate but its up to you.
i would wire a permanent +ve feed to relay, a +ve link from live feed to one side of relay coil,feed from other side of coil to light. then take a -ve to trhe switch and from the switch to the relay -ve so its not switching +12v


That makes absolutely no sense to me

Especially the part where you state "a +ve link from live feed to one side of relay coil,feed from other side of coil to light."

Why would you connect the relay coil to the lamp? Surely the relay coil needs to be connected to the switch???

Also I'm not convinced that switching the negative is any different to switching the positive except in maybe a bad way, e.g lots more permanently live wiring.

To the OP: Haynes do a nice automotive electrics manual which explains about all components and has lots of typical diagrams. Very worthwhile investment if you need to learn the basics.

Davie

Dusty - 14/1/12 at 02:55 AM

Try this. Non fused supply to switch. You might want to put a fuse in but if it blows you loose all the lights. Limitation of your switch design.
Left and right sides separately fused so if one bulb blows and blows its fuse you still have one light of that type left on.
I'm accepting your reassurance the switch does not need relays and you don't want them.

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snowy2 - 14/1/12 at 07:43 AM

here is an article i wrote some years ago and used to be on the technical section of the early version of this site.......
it is designed to be simple to understand and implement

http://www.andersensmith.freeserve.co.uk/wiringloom6.pdf

perhaps if the admin of this site wish they can make it a sticky again..

wylliezx9r - 14/1/12 at 07:44 AM

quote:
Originally posted by daviep
quote:
Originally posted by daniel mason
i would still use relays for each circuit mate but its up to you.
i would wire a permanent +ve feed to relay, a +ve link from live feed to one side of relay coil,feed from other side of coil to light. then take a -ve to trhe switch and from the switch to the relay -ve so its not switching +12v


That makes absolutely no sense to me

Especially the part where you state "a +ve link from live feed to one side of relay coil,feed from other side of coil to light."

Why would you connect the relay coil to the lamp? Surely the relay coil needs to be connected to the switch???

Also I'm not convinced that switching the negative is any different to switching the positive except in maybe a bad way, e.g lots more permanently live wiring.

To the OP: Haynes do a nice automotive electrics manual which explains about all components and has lots of typical diagrams. Very worthwhile investment if you need to learn the basics.

Davie


+1, current is constant in a circuit weather the negative or positive side, would make no difference.

snowy2 - 14/1/12 at 08:05 AM

this is another on fitting relays (for a cooling fan with over ride switch) but it can be applied to many uses.

http://www.godspeed.me/forums/viewtopic.php?f=14&t=1289

Russell - 14/1/12 at 08:52 AM

What about this?:

Link to wiring diagrams

Russ

daniel mason - 14/1/12 at 09:06 AM

Maybe talk to krismc who has an orange Mnr.he works with relays and alswys suggests switching -ve
a standard 4 pin relay would generally have a fused +ve, a -ve, a wire from 1 side of coil to light and a wire from the switch to the other side of coil. You could switch the switch live or the -ve

daviep - 14/1/12 at 09:33 AM

quote:
Originally posted by daniel mason
Maybe talk to krismc who has an orange Mnr.he works with relays and alswys suggests switching -ve
a standard 4 pin relay would generally have a fused +ve, a -ve, a wire from 1 side of coil to light and a wire from the switch to the other side of coil. You could switch the switch live or the -ve


Sorry that's not how a really is wired, you are still saying that the load should be connected to the coil of the relay???

Normally they are wired:

pin 30 - which is one side of the realy contacts - Fused positive
pin 87 - which is the other side of the relay contacts - Output to load
pin 85 - one side of the coil - 12v from switch
pin 86 - other side of the coil - earth

I'm not saying that switching the earth is wrong or bad, just that it won't make any difference to how the switch performs.

Davie

daniel mason - 14/1/12 at 09:53 AM

sorry yeah i switched the -ve to one side of the coil. i lam using the honda s2000 stalk switches though and had all the wiring diagrams and a theread on s2000 forum. the honda lighting stalk switches the -ve to the relays and i think its to avoid arching ang burning out the switch.
this is not helping sean much though. sorry mate!