triple blinker? - Toyota Yaris Forums

CTScott · 03-04-2009, 02:40 PM

There are two ways that I see of doing this:

1. Modify the flasher module circuitry (or add a microcontroller on top of it that looks for a quick close then open, and then does a tripple flash for you). Doable, but a bit of work.

2. Add two time delay relays (TDRs) in line with the flasher switches (one for left and one for right). TDRs come as either delay on make (DOM) or delay on break (DOB). In this case you'd want a DOB. The relay coil would be wired to the flasher switch. The contacts would be wired to the harness side. When you press and release the flasher switch it would continue to flash for the period which the DOB relay is set for (in this case a number of seconds, rather than a number of flashes).

The nice thing about this method is you can set the DOB for something like 3 to 5 seconds rather than just a quick tripple flash, so it would be more visible, but still have the same effect.

This second method would mean that you would also have the delay when you latch the turn signal, but that wouldn't really be an issue.

03-04-2009, 02:40 PM	#18
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	There are two ways that I see of doing this: 1. Modify the flasher module circuitry (or add a microcontroller on top of it that looks for a quick close then open, and then does a tripple flash for you). Doable, but a bit of work. 2. Add two time delay relays (TDRs) in line with the flasher switches (one for left and one for right). TDRs come as either delay on make (DOM) or delay on break (DOB). In this case you'd want a DOB. The relay coil would be wired to the flasher switch. The contacts would be wired to the harness side. When you press and release the flasher switch it would continue to flash for the period which the DOB relay is set for (in this case a number of seconds, rather than a number of flashes). The nice thing about this method is you can set the DOB for something like 3 to 5 seconds rather than just a quick tripple flash, so it would be more visible, but still have the same effect. This second method would mean that you would also have the delay when you latch the turn signal, but that wouldn't really be an issue.