Upgraded/Replaced my 2015 Halogens to 2018+ LED Headlights. You can find them on eBay or Yahoo auctions typically close/around ~$2K.
I used the OEM LED Headlight retrofit/wire harness guide by joey on the other forum to guide me in the right direction in making a conversion harness.

I’ve read various/conflicting info regarding how to wire up the newer headlights, the pin out, differing wiring color schemes between models, etc. so I found that the best way was to figure out the new headlight pin out on my own. I did not wire up the Self-Leveling module (yet) as my stock halogens/chassis wire harness did not have them.



Parts used.

• Lo Beam H11 Male connector x2
• Hi Beam 5-Pin Male Connector Part #90980-11598 x2
• Parking/DRL 6-Pin Male Connector Part #90980-11193 x2
• 2018+ Main LED 8-Pin Female Connector Part #90980-10897 x2
• 18 Gauge AWG copper wire
• Terminals with Seals/Grommets
• Open Barrel Terminal Crimper Molex Plier Tool

Note: If you de/re-pin the stock chassis harness plugs into connector 90980-10897, you won’t need the stock 5-Pin & 6-Pin connectors (90980-11598 & 90980-11193). You can buy most of the plugs on amazon or the Toyota dealer.



There are 7 solid colors (White, Green, Blue, Grey, Yellow, Black, Red) on the main 8-Pin plug on the 2018+ headlights. I started by making an 8-Pin pigtail harness using Female Connector Part #90980-10897. I assumed white & black were ground, then using a voltmeter to verify most of the pin out, then using a 9V battery to see what powered on. If anyone gets a pair, make sure you verify your own pin out (may vary) by using a voltmeter and testing it on your own.



The headlights I purchased did not have the turn signal indicator bulb/socket. The old halogen ones do not fit, so I modified them to work by using a razor blade to trim the socket plug tabs. They fit well, no problems so I did not bother to find the appropriate bulb socket/plug part # for the newer headlights






I took my front bumper off, mounted the new headlights, double checked its function by using the pigtail to plug in the wiring one by one to the stock harness, then measuring & cutting to length, then proceed to crimping on the terminals and placing them in the appropriate parts of the connectors. I haven’t figured out what Grey Pin #4 was for, but my Lo/Hi, DRL, Parking lights all work well without throwing a check headlight sensor indicator.

 

How would you compare light output and cutoff? Better than stock CT/Prius LED’s?

Any pictures of what the light output looks like at night?

Link to the wiring diagram that you mention?

Are you local to San Diego? Would love to see these in person.

Would you make the harnesses for a fee so I could just plug and play these lights?

 

Problem with these headlights they do not have the right cutoff being RHD, as a temporary solution I've lowered the beam level so I'm not blinding oncoming traffic. I can't compare stock LED's in comparison, but anything was better than the stock halogens.

The pic above was prior to making any beam adjustments, it's the only horrible pic I have showing the obvious RHD cutoff. The headlights have a Left/Right and Up/Down adjustment. The only proper way to fix this would be to open them up to adjust/modify the cutoff
Diagrams were on a different forum/post https://mhhauto.com/Thread-JDM-Diagr...-LED-Headlight and then I found a link for other diagrams so it may or may not be the correct ones https://cardiagn.com/lexus-ct200h-em...iring-diagram/

I'm in Riverside County so about 1-1.5 hours away,. Depending on the time/availability, I may consider wiring them up (Lo/Hi, DRL/Parking, Turn signal) for a fee as long as I have everything needed. I know LED to LED will be different, so that may take me longer to figure out
Someone on here wrote a LED to 2018+ LED wiring, but I found some of the information to be conflicting or my pin out might be different. https://www.clublexus.com/forums/ct-...l#post10209891

 

Very cool been waiting for someone to do this. When I had my CT, this was what I wanted to do one day.

RHD cutoff though.. tsk tsk.

As for output, these are very likely your run of the mill last-gen koito bi-LED gen 1s. Not bad, but not great. Just .. decent. But still overall a nice upgrade from halogen and beats those $20 LED bulbs people strap in the low beams.

 

oh excellent, I did not know they had the same shape as phase 2. Damage to the rhd. Can't find in lhd?
In any case it makes really good, good job

 

I'm lucky to have spent ~$1,200 as they usually go for more, you might have luck on Yahoo Auctions. I don't know which countries have them available in LHD, but you'll probably have to deal with getting them brand new and hope that the dealer/seller is willing to ship to the US.

I tried some $20 tier bulbs for my Lo beams when my bulbs went out, nice color change with horrible output. I'll eventually open them up and properly adjust the cutoff. How you liking the newer ride compared to the CT?

 

Nice job, Indolent!

Also, as one of the few factory LED headlight owners in the world (apparently... ) I can post a picture of my headlights at night if anyone would like.

 

lhd throughout europe. the new price at my Lexus dealership is 1650 euros excluding item tax. It's madness!

 

Yeah I do like the strap in LED bulbs (good ones) for the high beams. they work fantastic and since they're only for momentary use, i had little reserve to use them.

I do like my new car. it's just big/wide to park compared to the CT. i miss the CT in that it has that fun zip around feeling of being able to go anywhere. the new car gets noticeaby better MPG without having to try though which is cool.

 

Update 1/3/22

Decided to install the 2018+ F-Sport Fog Lamp Bezels since I’m unsure when my order for 2018+ F-Sport radiator grill(s) arrive. I like the newer/modern weave pattern better, the only downside is that it has a license plate frame on the lower radiator grill. I’ll figure out a proper delete later for a sleeker look. I didn’t like the big faux vents bezels at first, but they grew onto me.



It was a little difficult trying to figure out how to accurately line it up well due to the mounting tabs on the bezel. I found that starting from the inner to outward worked best for me. Lining up (as best I could) the lower mounting holes underneath helped guide me, marked the areas, then used a dremel to make the slots (8-9). I messed up some holes, but luckily it’s all hidden and I’m not afraid of some bodywork. After getting one side done, I taped some paper together to make a template for the slots (used the body lines as markers). Then I flipped that template over to the other side, marked it up, made the slots, test fit, adjust accordingly, then secured it with the retainer clips (x8 per side).

 

Looks good. Instead of the yellow fogs, I'd go Morimoto Type T LEDs. Ready for the rear hatch trim piece and tail light upgrade next? lol.

also i don't hate the chrome ring around the fogs, but i'd probably experiment wrapping them in gloss black. should be easy to try.

 

It's funny, I was literally talking with a friend last night about getting rid of the yellow lens at least due to the contrast with the newer front end looks kinda off to me. I'll look into the Morimoto's, thanks for the suggestion.
I've thought about the chrome rings as well and have been debating on the color to wrap. I would like to do it black chrome, but most black chrome vinyl wraps differ from my black chrome mouldings so I may end up doing gloss black when I do the radiator grill swap.
I've been ready for the tail light & hatch garnish (already ordered), but I didn't want to mention anything yet until the parts arrived lol.

 

Looks great! Thanks for sharing all of these upgrades. Feel free to share any new pics you get over time. Including a beam output pattern of the head lights or if you get the leveling motors working. Looking forward to the tail light update!

 

I'm still figuring the wiring, awaiting the garnish to arrive, but here's a sneak peak. I'll be doing another attempt at a write up once I have everything figured out

 

Wow! nice job...