Re: [DML] Flashing (turn signal) side lights (thought #1)

[Martin Gutkowski <webmaster@xxxx>]

I'm surprised Jan hasn't come in on this... It's SO easy:

Disconnect the GROUND wire to the front marker light, and connect the 
bulb's ground to the switched signal on the adjacent indicator.

That's it!

Quick explanation:

1) When the indicator is off, the +side is grounded. When it's flashing, 
this alternates between +12 and ground (obviously)
2) The marker light's +side is grounded when switched off.
3) Because of (2) when the indicator is switched on, you pull the ground 
side of the marker to +12v lighting the marker with the indicator
4) When headlights are on, the marker is grounded through the indicator 
(1) and lights up as usual. When the indicator flashes ON, the marker 
light turns OFF, as both of its connectors are taken to +12v.

A bulb doesn't care which way round the supply is connected. This takes 
advantage of that and the fact that the relays/flashers ground their 
outputs when off.

Martin
#1458


content22207 wrote:

> Never occurred to me (all my vehicles are 1981 or earlier -- front &
> rear flashers only). Is interesting idea however.