Oznium.com Store
Oznium Forum
The value of this forum is in the interaction with your fellow LED lighting enthusiasts.
Register today! - It is FREE and quick

Relay Help, Door Negatively Switched (I think)

Author
Message
EvilMonkey

Joined: Jul 19 2012
Posts: 7


Are you sure you want to delete this post?
  
Post Fri Jul 20, 2012 10:51 am

Hello,

I drive a 2006 Mazdaspeed6 and bought some of the Strip LED Ribbons and other parts from this site. I am new at this, so bear with me.

what I'm looking to do is:
- wire the LEDs so that when one door is open, all LEDs in the footwell light up
- put an "on-off-on" switch (purchased from this site) on the LEDs so I can turn them on regardless if the door is open or not (much like the dome light)

I was going to accomplish the first part by splicing the variable ground that connects to the door lights (in the door) and connect it to one of the "on" poles of the switch.

The second part I thought I could just connect a constant ground (like a car bolt on the chassis) to the other "on" pole of the switch and have everything work out as planned.

However, after reading this forum and many others, it became clear to me I need to include a relay. However, the only discussion on this forum I have seen is for dome lights that are positively switched, and I am trying to connect it to the negatively switched doors. I don't want to wire it to my dome light as I'd like to keep its functionality separate.

So my questions are:
1. What kind of relay should I buy? A 5 pin 40A relay? (https://www.oznium.com/wire-12v-and-relays/relay40)
2. How do you hook up said relay to accomplish what I want to do? I was thinking:
- 85: Constant 12v (add a fuse from fuse box)
- 86: Wire to constant ground (chassis bolt)
- 87: Output to positive of LEDs
- 30: ?
- 87a: Negatively switched wire from door light
But then I don't know where the switch comes in.

3. Where should the relay be placed (i.e. is it a central component as everything connects to it?)

Thanks for your time.
bad venge

Joined: Jul 28 2007
Posts: 3550


Are you sure you want to delete this post?
  
Post Fri Jul 20, 2012 5:58 pm

You have to VERIFY how the dome lights are switched IF they are negative It's a TOTALLY different wiring

It SOUNDS like the dome lights are negative switched

Heres the wiring :
User posted image

Pin 30 to the NEGATIVE on the strips
Constant Positive thru fuse to the strips

Pin 87a the negative switched from the door

Pin 87/86 To Ground

Pin 85 to Power from switch
EvilMonkey

Joined: Jul 19 2012
Posts: 7


Are you sure you want to delete this post?
  
Post Fri Jul 20, 2012 9:49 pm

The lights are negatively switched. when you say power from switch (pin 85) which pole do I connect to? What about the other "on" switch?
bad venge

Joined: Jul 28 2007
Posts: 3550


Are you sure you want to delete this post?
  
Post Sat Jul 21, 2012 3:58 am

pin 85 (on the relay) is WHERE you connect to this gives the leds Ground to turn them on via the switch the door will function automatically , you really don't need the on/off/on switch you have
EvilMonkey

Joined: Jul 19 2012
Posts: 7


Are you sure you want to delete this post?
  
Post Sat Jul 21, 2012 1:54 pm

so how would I turn the LEDs on without the door being open?
bad venge

Joined: Jul 28 2007
Posts: 3550


Are you sure you want to delete this post?
  
Post Sat Jul 21, 2012 5:27 pm

by connecting to pin 85 THAT turns the relay on that turns in the lefs without the doors open
EvilMonkey

Joined: Jul 19 2012
Posts: 7


Are you sure you want to delete this post?
  
Post Sat Jul 21, 2012 8:56 pm



So I do better with pictures, does this look correct?
bad venge

Joined: Jul 28 2007
Posts: 3550


Are you sure you want to delete this post?
  
Post Sun Jul 22, 2012 6:06 am

you need the leds powered constantly (can't understand the drawing) fused

power from switch to 85

power from fusebox thru fuse ( I recomend key on that way you can't leave them on accidently) to switch

86/87 to ground can use jumper
EvilMonkey

Joined: Jul 19 2012
Posts: 7


Are you sure you want to delete this post?
  
Post Sun Jul 22, 2012 9:29 am

Ok, so lets try this with v2... hopefully i got it right.

bad venge

Joined: Jul 28 2007
Posts: 3550


Are you sure you want to delete this post?
  
Post Sun Jul 22, 2012 2:34 pm

need a constant power to the leds meaning power with key off
EvilMonkey

Joined: Jul 19 2012
Posts: 7


Are you sure you want to delete this post?
  
Post Sun Jul 22, 2012 2:58 pm

So this configuration is right, as long as I power the LED with a power source that is always on, such as the cigarette lighter?
bad venge

Joined: Jul 28 2007
Posts: 3550


Are you sure you want to delete this post?
  
Post Sun Jul 22, 2012 3:21 pm

most cigarette lighters are switched on current cars ...
you'll need a clock / dome light circuit for constant power
EvilMonkey

Joined: Jul 19 2012
Posts: 7


Are you sure you want to delete this post?
  
Post Mon Jul 23, 2012 3:47 pm

Okay, so I found a constant power source, so if I follow my diagram everything should theoretically work right?

Thanks for all your help bad venge!
bad venge

Joined: Jul 28 2007
Posts: 3550


Are you sure you want to delete this post?
  
Post Mon Jul 23, 2012 6:06 pm

should as long as it's negative switched as you indicated
The time now is Mon Sep 24, 2018 10:59 pm
Page 1 of 1