Indicator warning light led

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randybugger
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Indicator warning light led

Putting in some shiney led warning lamps and can't figure out how to wire the indicator one. Power comes in from either side depending on what way you are turning. Result is it only flashes for one way as the led cant work backwards like a normal bulb.

any ideas?

cheers

Tony

 

Jonathan Kay
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Which model of Seven?

Have you got a single indicator lamp in the dash not in an instrument? That type uses a funny circuit that won't work if you replace the incandescant lamp with a diode, exactly as you've found.

But there's a simple way of using an LED which only needs a bit more wiring and a couple of diodes and a new earth. It's described here but IIRC there's something more recent with more detail... 2018, with an explanatory circuit diagram linked from post #9.

Jonathan

randybugger
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Thanks Jonathon

1990 dedion 

one light

ill check that link and see if I can make heads or tails of it.

i hoped I could just buy something and plug it in 

Jonathan Kay
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You can!

Jonathan

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Do you have a buzzer? If so you may already have the diodes connected to it. I fitted an LED light in the dash but couldn't run the LED and the buzzer off the same diodes so fitted extra ones. However, after a while I found the LED was far more effective at reminding me that an indicator was on than the buzzer so I removed it. So if there is a buzzer present you could remove it and connect the LED up to the old buzzer wiring.
randybugger
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No buzzer so I need a diode thingy Y connector.  I've tried googling but not sure what I'm searching for 

randybugger
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Sorry for my ignorance but what would happen if I joined the two wires together and earthed the bulb? 
 

Jonathan Kay
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Jonathan Kay
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Sorry for my ignorance but what would happen if I joined the two wires together and earthed the bulb? 

Whichever side you switch on they'll both illuminate.

Jonathan

randybugger
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Thanks very much, I’ve learnt a lot, I didn’t even know what a diode was until tonight.

randybugger
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Indicators now working.

new problem, now ignition light stays on and won’t go out... guess I need some other electric gizmo?