I have a 1990 Firebird. At the taillights, I have signal wires for each turn signal (left and right) and brake signal wires. The way it was setup, the outer lights would blink as the inner 2 lights were the brakes. However, putting in a STS-1 module from webelectric brings up some issues. I'm able to get the lights to sequence, but now I don't have anywhere to hook up the brake signals to. The module is referring to cars having brake/turn signals in 1 wire. Well, as stated, I do not. If I hook up the brake signal and turn into 1 connection on the module, when the turn signal is on, and I hit the brakes, the turn signal stops and the blinker is "frozen" until I let off the brakes.
So, I think what I need to do (without having to run more signal wires from the flasher to the back of the car), is have a momentary relay in place. What it would do is, when the turn signal is blinking, it will remove the brake signal from the assembly, so that the module can sequence the lights. The only problem is, the turn signal is "pulsing" a 12V signal, so the relay will be clicking the brake signal on and off. That will not work and/or mess up the module. So, from a pulsing input, I need the coil on the relay to stay constant until the pulsing stops, and then reapply the brake signal so that my brake lights work.
I hope this makes sense and is an easy solution! Thanks!
I'll have to use 4 relays it seems...2 to change pulsed input to constant, the others to switch the brake signals on and off from the side that has the turn signal applied. It seems a bit excessive to have 4 relays for this application. If I can do it with a single relay on each side, I would just need it to hold the output for each pulse of the turn signal flasher. Do I need a giant capacitor for this?
I need a relay that when given a pulsed 12V (in about 1 second intervals), will provide a constant output (keeping the coil energized without clicking it on and off with the pulses). But when the pulsing stops, I need the coil to de-energize right away also (not staying on for 5 seconds after, etc.).
Is this the setup:
https://www.the12volt.com/12voltimages/constantmoment.gif
Or it may be this one:
https://www.the12volt.com/relays/page5.asp#pts
10kuF seems pretty excessive. And the description says to increase the cap for a longer output. If this diagram describes a "constant" output, what would be a "longer" output?
Thanks!
Just came across this, but based on the description
here
your flasher module simply outputs the sequential output once each time it sees a trigger, and gets retriggered when your turn signals flash.
For the brakes, if the input is a steady on signal, it sequences once, and then they all remain on.
You possibly might be able to do it with a single relay, try it with the following connections with standard relay designations:
COM terminal 30 to the sequencer module input
NC terminal 87A to the brake light line
NO terminal 87 to the turn signal line
Coil (+) terminal 86 to the turn signal line
Coil (-) terminal 85 to ground
If the module is electronic and is able to retrigger with a very short break time between the turn signal flashes, the time that the signal is interrupted when the relay switches from normally closed to normally open may be able to trigger the next sequence cycle.
If it doesn't work because it needs a longer trigger, you could do it with two relays per side though you said you don't want to use that many.
Two relays