Posted: Thu Oct 22, 2020 20:38 Post subject: Flashing red light for dash
Hi everyone
I was going to put one of those flashing LEDs on the dash to act as a visual deterrent. Can someone point me in the direction as to where a live wire is under the dash that I can use when the ignition is turned off? I have a 1994 L400 3L V6
Joined: 08 Mar 2008 Posts: 3829 Location: Borehamwood
Posted: Fri Oct 23, 2020 19:44 Post subject:
There is always a Live wire to the Ignition switch.
I did this years ago. Wired the LED from a + Live to the Ignition coil - Soon as Ignition is ON, it extinguished the LED.
Dunno if/how this would work with modern electronic ignition.
Thinking about it I have got other ideas. Don't be shy to ask.
BTW RED LEDs only draw 20 milliamps and run on Approx 2 volts, that needs a resistor of around 500 ohms + - 40 ohms.
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