Dome Light Wire

[Liu997]

I am going to add some LED bars for interior lighting and don't know which wire is the dome light so that the bars will light up when the doors are open.
And can the circuit handle 4 led bars? Thanks

[Liu997]

no one has hook up lights to the dome wire? Its really that bad?

[staticorex]

While I can't speak for this exact situation, every time I've added light bars I ran them directly to a separate fuse box I attached directly to the battery. You can pick one up for a few bucks and you can set any fuse and any number of lights to it. I know that won't help your lights on with the door open idea but you could still rig something up for that afterward.

[CTScott]

The feed is via a 15A fuse, so you should be fine. That circuit drives the dome, map, and hatch lights.

[Stiv]

I think I have an idea.

I looked at the lightning diagram, and there is a connector called 4K left of the steering wheel. Wire 4K-2 is ECU controlled ground that controls the dome light dimming effect. It goes from 0V (dome light is on) to 12V (dome light is off).

The idea is to hook + connector of the LED or cold cathode neon light to let's say cigarette lighter + wire (or any other available constant 12V wire), and - or ground to the 4K-2 wire.

In theory that works. Please look at http://www.etimago.com/yaris/repairmanual/Lighting.pdf pages 19, 83 and 84.

[CTScott]

Originally Posted by Stiv

I think I have an idea.

I looked at the lightning diagram, and there is a connector called 4K left of the steering wheel. Wire 4K-2 is ECU controlled ground that controls the dome light dimming effect. It goes from 0V (dome light is on) to 12V (dome light is off).

The idea is to hook + connector of the LED or cold cathode neon light to let's say cigarette lighter + wire (or any other available constant 12V wire), and - or ground to the 4K-2 wire.

In theory that works. Please look at http://www.etimago.com/yaris/repairmanual/Lighting.pdf pages 19, 83 and 84.

That would be fine. Depending on the power supply of the cold cathodes, you may not see the dimming effect, but rather just on and off.

[Stiv]

Last time I used these http://www.sharkoon.com/html/produkt.../index_en.html

It was done in Renault Laguna which has a dimmer.
They dimmed as expected and they're still working like a charm

[CTScott]

Originally Posted by Stiv

Last time I used these http://www.sharkoon.com/html/produkt.../index_en.html

It was done in Renault Laguna which has a dimmer.
They dimmed as expected and they're still working like a charm

That works. Another option that I like better than CCFL lamps is EL wire. It is flexible, won't break if you bump it, and extremely power efficient.

http://www.lightnwire.com/raw.html

[Stiv]

Originally Posted by CTScott

That works. Another option that I like better than CCFL lamps is EL wire. It is flexible, won't break if you bump it, and extremely power efficient.

http://www.lightnwire.com/raw.html

That's tight
Do you know which one should have the same brightness as those CCFL I mentioned earlier? Maybe HIGH BRIGHTNESS STANDARD WIRE?

[Altitude]

I actually had some under dash lights hooked up to the dome circuit and I'd tell you which wire on the junction box it was if I hadn't disconnected it. I seem to recall it was a pink-ish wire. I know this doesn't help much but just know that it is possible and easy to wire into the circuit. The under dash lights even faded in and out like the dome light.

[CTScott]

Originally Posted by Stiv

That's tight
Do you know which one should have the same brightness as those CCFL I mentioned earlier? Maybe HIGH BRIGHTNESS STANDARD WIRE?

The high brightness standard should be very similar to if not brighter than the ccfl. The other handy thing about EL wire is that you can cut it to any length, whereas the ccfls come in set sizes.

[Stiv]

Originally Posted by Altitude

I actually had some under dash lights hooked up to the dome circuit and I'd tell you which wire on the junction box it was if I hadn't disconnected it. I seem to recall it was a pink-ish wire. I know this doesn't help much but just know that it is possible and easy to wire into the circuit. The under dash lights even faded in and out like the dome light.

4K-2 actually is pinkish
It look's like I'm on the right track

[Stiv]

Originally Posted by CTScott

The high brightness standard should be very similar to if not brighter than the ccfl. The other handy thing about EL wire is that you can cut it to any length, whereas the ccfls come in set sizes.

Oh man, so nice, I just sent them an email. Hope they ship to Croatia :)

[CTScott]

Originally Posted by Stiv

Oh man, so nice, I just sent them an email. Hope they ship to Croatia :)

If they don't, just do a web search for "EL wire". You should be able to find someone over in that area that carries it.