Are GT86 Headlights Plug and Play with FRS?

[bggns]

I'm glad you kept your EDM headlights and got them installed. How did the install go? Do you have pics of the LEDs in the high and low settings?

[tbwoodlee]

Originally Posted by bggns

I'm glad you kept your EDM headlights and got them installed. How did the install go? Do you have pics of the LEDs in the high and low settings?

Yeah, now that they are in, I am glad it worked out like it did. Here are pictures of the LED's. I can get better shots tonight though

The first is the DRL and they are in a lower setting. When I turn my sidemarkers on they are in their brightest mode which can be seen in the second picture.

[dokterdewe]

Originally Posted by Moto-P

Here's the pin identification if you anyone needs it.

Easiest and the most reliable way to wire the Japanese HID/LED lamps to Scion FRS halogen systems is to pull the pins out of both light assemblies and re-pin them into the proper socket location on the FRS lamp assembly connector. That way all connections are water-proof and original FRS sockets can be used without cutting most of them or tapping them at all, except one pin...
One can easily find another single pin male/female connector for this... I used the aftermarket HID bulb 1 pin waterproof socket as it is commonly available.
To remove the socket pins, you need to simply yank on the white plastic guide-locks to remove it, then finding the pin lock tabs for each one, move it up and pull gently on the wires from the back of the socket.


Japanese HID/LED (GT-Limited) "socket" pins:
#'s correspond to pin position in the 8 pin socket.

1. Not Used (Empty)

2. White - LED High (DRL 3.3W mode, 12V+ *must bypass the resistor on USA FRS to power this)
3. Green - LED Low (12V+ 0.5 w mode)
4. Black 12 Guage - LED Common GND

5. Red (12guage) - HID Ballast 12V +
6. Black (12 guage) - HID Ballast GND

7. Yellow - High Beam bulb position actuator 12+
8. Blue - High Beam bulb position actuator GND

On the USA Scion FRS 6 of the 7 necessary wires are all in the 6 pin socket, and it's a matter of re-pinning the sockets to proper locations. All of them except the pin needed for the DRL (LED-High 3.3w mode) are there.

To wire the DRL properly, pull the DRL resistor located on the right front bumper just below the horn assembly. Tap into the live 12V side of the harness and leave the resistor unplugged so it does not feed the high beam actuator in the Japanese assembly.

This is done because the USA FRS has the high beam bulb doing tha dual role of DRL and HIGH Beam, and Japanese assembly has LED High mode at 3.3 doing the DRL, and is separate from the actual HIGH beam which is done with HID main bulb with bulb position locator shifting the Low beam to high.

Take the live side tapped wire to the LED high 12V wire on the Japanese headlight assembly so you get full 12V, and at the same time leave the socket off the resistor so it does not feed the High Beam actuator with attenuated voltage that normally powers the FRS high side halogen... (yes I said this twice to remind you)...

On the Japanese headlamp, now you should have 6 wires left, after you connected the white to the DRL 12V circuit (with resistor bypassed)

**I'd just simply remove this resistor altogether as you don't want a shop or dealer plugging it back in. The FRS only needs it so it can under-drive a halogen lamp on high beam at lower voltage during DRL. The Japanese system does not use it, as it has a LED array that is designed for this, separate from the HID high beam.

Now you need to use this USA Scion FRS headlight "Harness side" custom socket diagram to put the pins in the right locations for the FRS socket to be used on the Japanese LED lamp to power the system correctly.

USA Scion FRS lamp assembly socket pin (6 Pin connector)

1. Green (High beam) 12V ----> Blue bulb position actuator 12V+
4. White (High beam) GND ---> Yellow bulb position actuator GND

3. Red - (Low beam) 12V------> Red HID Ballast 12V
2. Black - (low beam) GND-----> Black HID ballast GND

5. unused on FRS headlight but pre-wired on the car (parking GND)--------> 16guage Black LED Common GND
6. unused on FRS headlight but pre-wired on the car (parking 12V)--------->Green LED Low 0.5w mode 12V+

*7 not on the headlight socket, wired separately from the live side of the DRL resistor on the FRS DRL line. ------>White (LED High 3.3w mode 12V for DRL)
* leave the resistor disconnected.


Now you should be done.

Check Operation:

Parking lamp on = Low LED light up.
Headlight on = HID Low beam + Low LED light up.
High beam = HID Low and HIGH should now be lit with bulb relocated by actuator into the proper position inside the projector+ LOW LED lit.
Flasher = HID should power with actuator in high beam mode, and upon releasing the High mode LED also flashes for a split second (latter if the headlight is on)
DRL with all light switches in Off and with car in Reverse or Drive Gears, and parking brake down, engine on = DRL mode LED should be lit with full 5.5w really bright.

There you have it. Properly working like a Japanese GT-Limited 86.

so in GT-Limited 86 there is DRL , which means the LED strip beside the HID will always be ON right ??

how do i made it to my 86 model ? the LED will not ON unless i click the switch..

[dokterdewe]

Originally Posted by sav

Thanks for this.

Quick question - the white & green connections for High and Low, I'm assuming output is switched between them, in other words, they're never both powered at the same time?

Our cars came standard with the LED lights but they only work when the lights are switched on so I want to rewire them to make them work as DRL.

Funny enough, we've got an empty relay socket for DRL but fitting a relay does nothing.

i want that too !! Indonesia model maybe is the exact set up as South Africa.. mine is A/T though..

have you find the solution ?

[sav]

No solution yet.

Somebody else fitted a relay in the open DRL socket in the engine bay and it worked. Maybe give that a try first?

[iketiak]

Can anyone provide a picture of where the DRL resistor is located?

[kALMIGHTY]

Do you think if Scion starts to sell these headlights at some point, and I order the lights from them, that they'll do the install for me so I wouldn't have to worry about messing with these wires?

[civicdrivr]

Originally Posted by kALMIGHTY

Do you think if Scion starts to sell these headlights at some point, and I order the lights from them, that they'll do the install for me so I wouldn't have to worry about messing with these wires?

No disrespect to those that work in dealers, but do you really trust them to rewire the headlights?

Sent from my Nexus 4

[kALMIGHTY]

Originally Posted by civicdrivr

No disrespect to those that work in dealers, but do you really trust them to rewire the headlights?

Sent from my Nexus 4

I'd trust them more than I'd trust myself. Besides, if they were willing to do it, why not? If something goes wrong, they're liable and will have to fix it.

[tbwoodlee]

As someone who has done it myself I can definitely say I would not take it to a dealer. The wiring is incredibly easy.

Since the bumper has to be removed you can bet the dealer will charge you a pretty penny and I am all about saving some money. Having done quite a few mods to the vehicle myself, I will say that this one is one of the easier ones. Hell, I had a harder time with the fog lights.

[sav]

Cool, so what are we missing here? We've got the LED lights already, we know the ECU supports it because you can hear the relay clicking when testing via Techstream but they're only switching on with the headlights. Something must surely be disconnected?

[HRTROB]

Originally Posted by dokterdewe

i want that too !! Indonesia model maybe is the exact set up as South Africa.. mine is A/T though..

have you find the solution ?

Try plugging in a relay on the empty DRL slot inside the fuse box in the engine compartment. It worked for us over here in the Philippines. Let us know how it goes!

[sav]

Thanks, I have tried that already - can hear the relay clicking but DRL not switching on.

[dokterdewe]

Are you talking about BCU ? Main Body ECU ???