allvtecyo

Hello,
So I have a set of LED side marker lights I'm going to in putting in the fenders of my 98 coupe. Now I've seen this done a few ways, and I've done it myself but I want to try and do something new. Every time I've installed these, I've wired it into my turn signal so they blink with the turn signal. However, when I do this my front turn light and the side marker blink at the exact same time. I'd like to make it where they blink sequentially (back and forth). I've seen a guy with a JDM integra that had them and his would blink that way but, he didn't install them so he wasn't any help.

Can someone please tell me how I install them to where they blink sequentially(back and forth). I want the front to blink then the side marker, front, side marker, and so on.

Also, does anyone know how they are installed in Japan? As in are they park lamps or turn lamps? Does anyone know the exact position on a 98 coupe?

NotARaCist

iTrader: (1)

What you want to do is pretty easy with a 4 pin relay. Wire the signal side of the relay in-line with the turn signal. Run the "on position" wire to the turn signal bulb, and the "off position" wire to the fender light.

allvtecyo

Is there a certain type of relay to do this that I can order from Honda? Is there a special brand or type that you would suggest I buy other than a plain 4 pin relay? Am I going to need 2 of these? I would assume that I would need 2, one for each side. But I figured I would ask you just to make sure.

Thanks

grumblemarc

iTrader: (4)

He said "4 pin relay". I didn't hear him say "Special Honda 4 pin relay".

NotARaCist

iTrader: (1)

A standard, $3 on Amazon, 4 or 5 pin relay will work.

andoxviii

iTrader: (1)

LOL. You sir, are grumpy.

2LEM1

iTrader: (1)

Background info:

Our corner lamps are dual filament bulbs which have 3 wires:
Red +12V parking lamp
Green +12V blinker
Black 0V ground
(colors may vary, check your manual or use a multimeter)

The sidemarker has a single filament, which has 2 wires:
Red +12V
Black 0v ground


How do you want it to be wired? There are 3 options...

Option 1:
-Sidemarker is illuminated (providing your parking lamps are on)
-Otherwise, sidemarker is off (it will not blink)

Option 2::
-Sidemarker and blinker blink in phase (at the same time)
-Otherwise, sidemarker is off

Option 3:
-Sidemarker and blinker blink out of phase (alternate illumination)
-Otherwise, sidemarker is illuminated (providing your parking lamps are on)


How do you wire them up?

Option1-
Connect Red to Red.
Connect Black to Black.

Option2-
Connect Green to Red.
Connect Black to Black.

Option3-
Connect Red to Red.
Connect Green to Black.


The reason/how option 3 works…

When the parking lights are on, +12V is on the positive side of the sidemarker and the blinker, being off, sends no voltage (0V) to the negative side. This +12V illuminates the bulb. Now, when the blinker is activated, +12V pulses are observed on the negative side. This means that there is +12V on BOTH sides of the bulb, which because of the lack of voltage difference, the bulb turns off. This is also why the blinker and sidemarker alternate illumination.




*note the stock harness wire colors are extended to the side marker wire colors to better illustrate where the wires originate.





Just in case some future noob actually uses the search button.

andoxviii

iTrader: (1)

^^ Good informative post.

NotARaCist

iTrader: (1)

Also a valid way to do it, although I'm personally not a fan of putting more load on OEM wiring and fuses than they were initially made for. I'm sure plenty of people do it, I just wouldn't.

grumblemarc

iTrader: (4)

Sorry. Lately people seem to be going out of their way to make things harder than they are.