Dummy alarm light

[warrior]

My sister cant afford an alarm at the moment so I got her a dummy alarm light from jarcar today, went to fit it and for the life of me I cant get it to work.

It has no instructions.

It has one red wire and one black wire.

I did a quick search on the net and the best I could see was...

RED wire to constant power.

Black wire to ACC power.

But this will not work. Any ideas guys???????

[Snapfrozen]

Black needs to be earthed. I would try it to the ACC ground, so that when ACC is off, it comes on.

[warrior]

Is the ACC different than a normal earth? I have tried earthing the black wire and the light works but does not go off.

[WideOpenThrottle]

When I did an LED one on an earlier car I think it worked just by connecting red to pos & black to neg.This will make it run all the time
I then got fancy and used a relay to turn it off while driving and then only flash with the key out.

[warrior]

This should run the correct way without the relay, just need to work out the correct wireing.

[WideOpenThrottle]

Just try it across the battery terminals to see if it goes!

[warrior]

Yeah it does but it wont stop.

[WideOpenThrottle]

Its not supposed too...that's why I used a relay to cut the power when the ignition was turned on.

[Snapfrozen]

Is the ACC different than a normal earth? I have tried earthing the black wire and the light works but does not go off.

This way when ACC is on - the light won't go on, when it's off, the light will come on. I may have worded it backwards, it's late at night