Using turn indicators as DRLs on 2009 HB

[tamrat]

Originally Posted by ezhacker1

If its just using relays then i think this will be it:

You need the pulsed signal in the engine bay to be a constant so it can trigger another relay




85 - Output from above relay
86 - Ground
30 - 12v
87a -Turn signal 12v

Now unless the (pulse to constant relay) is sending pixies to the 2nd relay. You will have constant 12v to the front turn signal.

I don't know why this didn't work the first time (in simulation). But there is good news. With the comment on switchbacks and this diagram and also help from a lot of people, I have a fully working system now. I mocked it up on the bench and its perfect. Flawless.

Here is the wiring diagram and component specs:


The 6600uF capacitor holds plenty enough charge to keep the relay energized for about 1.6 seconds. This duration is long enough when compared to the period of the pulses from the indicator light wires.

I'll have already started installing the system. I have laid out wires and where every thing goes. I just need waterproof containers for the circuits and also a switch that will fit one of the empty slots around the AUX port. And its a bummer that the Yaris doesn't have a gromet in the driver's side (LHD). I had to pull it though the passenger side.

I'll put up pictures once I'm done.

Tamrat,