Cornering Fog Lamps for 16+ LX? (1 Viewer)

[atomic8778]

Hey all,

Has anyone swapped their US spec fog lamps for one that has cornering fog lamps? I see that it was available for at least JDM spec LXs; the ones I saw are here: Genuine Lexus Japan 2016-2021 LX 570 LED Fog Lamp Unit Set with LED Cornering Lamps - https://lexusboutique.net/products/genuine-lexus-japan-2016-2017-lx-570-led-fog-lamp-unit-set-with-led-cornering-lamps

Curious if it's a simple plug-n-play; the description in that link seems to indicate that it's not.

Thanks!

 

[bloc]

The fog lamp has no idea when you are cornering, so I’m assuming you’d need some BCM programming/coding to make this work.

BCM hacks aren’t uncommon on some brands of vehicle, but if anyone is doing that on Toyotas I haven’t heard of it yet.

 

[atomic8778]

The fog lamp has no idea when you are cornering, so I’m assuming you’d need some BCM programming/coding to make this work.

BCM hacks aren’t uncommon on some brands of vehicle, but if anyone is doing that on Toyotas I haven’t heard of it yet.

Ah I didn't know that; I mean I did know that the fog lamp itself has no idea I'm cornering of course, but I was hoping that, for example, there was an unconnected harness or the BCM is actually sending a signal that the car is turning, but since there's no extra cornering lamp, there just isn't something that's receiving the signal.

That hope/hunch was based on that the US spec 16+ LX only have one LED bulb, but the one in the link has 2 bulbs - obviously the extra bulb being the one that turns on when cornering. I wasn't sure if there was already a harness or something and it was just a matter of hooking it up.

 

[Mrtwooooo]

would it not turn the cornering light on based on a turn signal?

I think i'd rather have the sequential turn signals the JDM cars got.

 

[atomic8778]

To add more, here's a fog lamp assembly diagram from a JDM spec LX: Fog lamp for Lexus LX570 URJ201W - Genuine parts - Amayama - https://www.amayama.com/en/genuine-catalogs/epc/lexus-japan/lx570/URJ201W/182027/electric/8102, where you can see that secondary cornering bulb. it looks like there's a common connecting wiring harness (81215E), but I'm not sure if that connects to 85967B - Computer, Light Control LED, and I'm not certain whether our stateside LXs came with that same computer, or something else entirely.

(This is the same picture on the other thread I have about fog lamps btw!)

 

[atomic8778]

would it not turn the cornering light on based on a turn signal?

I think i'd rather have the sequential turn signals the JDM cars got.

Unsure - how do current Lexus that have cornering lights work? is it by turn-of-wheel or by indicator? or both?

 

[achillar30]

My wife’s 2018 RX450hL with LED headlights has cornering lights that come on based on steering wheel angle. I don’t even notice them whenever I drive her car.

My 2016 LX also has the default LED headlights and I don’t feel like I notice any difference without the cornering lights bs my wife’s RX. What I do notice that makes a huge difference is how the older Lexus headlights swiveled while driving. My 2016 LS has LED headlights but they’re the older type of design compared to the RX and LX. I can literally see around curves with how much they move. Add on the auto high beam feature and it’s probably some of the best forward illumination I’ve ever seen. The LX and RX supposedly swivel as well, but I can’t even notice it. I believe the pre-facelift LXs had a similar swiveling system as my LS. I feel like the 2016+ took a step back here even though the actual light output from the newer LEDs is superior.

 

[atomic8778]

My wife’s 2018 RX450hL with LED headlights has cornering lights that come on based on steering wheel angle. I don’t even notice them whenever I drive her car.

My 2016 LX also has the default LED headlights and I don’t feel like I notice any difference without the cornering lights bs my wife’s RX. What I do notice that makes a huge difference is how the older Lexus headlights swiveled while driving. My 2016 LS has LED headlights but they’re the older type of design compared to the RX and LX. I can literally see around curves with how much they move. Add on the auto high beam feature and it’s probably some of the best forward illumination I’ve ever seen. The LX and RX supposedly swivel as well, but I can’t even notice it. I believe the pre-facelift LXs had a similar swiveling system. I feel like the 2016+ took a step back here even though the actual light output is superior.

No argument from me here! I agree that it sucks that '16+ LXs lights don't swivel left and right. They do swivel up and down for sure - I notice it whenever I'm against a wall and when the AHC goes from L <> N <> H.

I'd hope that I notice cornering lamps on the LX if I install them though. I do always notice when my fogs go on (since I usually have them off). One thing I don't like about the '16+ headlights is that the beam doesn't feel "wide" enough and I'm hoping that at low speeds, cornering lights could hopefully help a bit more.

 

[atomic8778]

My wife’s 2018 RX450hL with LED headlights has cornering lights that come on based on steering wheel angle. I don’t even notice them whenever I drive her car.

My 2016 LX also has the default LED headlights and I don’t feel like I notice any difference without the cornering lights bs my wife’s RX. What I do notice that makes a huge difference is how the older Lexus headlights swiveled while driving. My 2016 LS has LED headlights but they’re the older type of design compared to the RX and LX. I can literally see around curves with how much they move. Add on the auto high beam feature and it’s probably some of the best forward illumination I’ve ever seen. The LX and RX supposedly swivel as well, but I can’t even notice it. I believe the pre-facelift LXs had a similar swiveling system as my LS. I feel like the 2016+ took a step back here even though the actual light output from the newer LEDs is superior.

Actually looks like someone was able to get the rear sequential lights on: Rear dynamic turn signals installed - ClubLexus - Lexus Forum Discussion - https://www.clublexus.com/forums/lx-3rd-gen-2008-2021/885846-rear-dynamic-turn-signals-installed-2.html. From what I can gather, the front sequential lights require replacement of the entire headlight assembly. youch.

It also looks like someone had gone down the path of cornering lights but couldn't make it work and abandoned the project. Bummer!

 

[achillar30]

Actually looks like someone was able to get the rear sequential lights on: Rear dynamic turn signals installed - ClubLexus - Lexus Forum Discussion - https://www.clublexus.com/forums/lx-3rd-gen-2008-2021/885846-rear-dynamic-turn-signals-installed-2.html. From what I can gather, the front sequential lights require replacement of the entire headlight assembly. youch.

It also looks like someone had gone down the path of cornering lights but couldn't make it work and abandoned the project. Bummer!

Wow I didn’t even know that existed…looks great. After seeing the JDM cornering lamp price, I’m scared to think of how much those taillights cost.

I wonder if there’s a such thing as JDM or ROW LED headlights which might be better than those we get in the US? Won’t be DOT legal, but interesting to see what else we might be missing out on.

 

[atomic8778]

Wow I didn’t even know that existed…looks great. After seeing the JDM cornering lamp price, I’m scared to think of how much those taillights cost.

I wonder if there’s a such thing as JDM or ROW LED headlights which might be better than those we get in the US? Won’t be DOT legal, but interesting to see what else we might be missing out on.

You and me both! I didn't even know they existed and I love it. Yeah cost wise, I'm out as well...but I can dream!

I think the JDM headlights are the same as US. The only thing different is the DRL/turn signal since that's sequential.

 

[bloc]

I think the JDM headlights are the same as US. The only thing different is the DRL/turn signal since that's sequential.

They drive on the other side of the road. There are absolutely differences beyond the sequential turn signals.

 

[atomic8778]

They drive on the other side of the road. There are absolutely differences beyond the sequential turn signals.

I once drove a Land Rover (could've been a BMW...) where it had the feature to toggle if you were driving in a LHD or RHD region and all it did was re-aim the lights. Not saying that's what all what differentiates a US vs JDM LX, but point is, just because they drive on the other side doesn't immediately mean it's different.

Also the sequential turn lights of the LX is its own module. https://partsouq.com/en/catalog/gen...DAihHBExsdExAR2dCM1cOSFdtFA$&vid=0&gid=623&q=, though it sits in the entire headlight assembly of course.

I'm clearly not a headlights expert though so I defer to your expertise.

 

[bloc]

I once drove a Land Rover (could've been a BMW...) where it had the feature to toggle if you were driving in a LHD or RHD region and all it did was re-aim the lights. Not saying that's what all what differentiates a US vs JDM LX, but point is, just because they drive on the other side doesn't immediately mean it's different.

Also the sequential turn lights of the LX is its own module. https://partsouq.com/en/catalog/gen...DAihHBExsdExAR2dCM1cOSFdtFA$&vid=0&gid=623&q=, though it sits in the entire headlight assembly of course.

I'm clearly not a headlights expert though so I defer to your expertise.

The 2008-2015 200 series projects the beam lower on the left side than the right, to avoid blinding oncoming traffic. Stuff like this is tightly regulated by our DOT writing rules on the subject.

08-11 does this with a different shaped reflector, 13-15 via a shutter that blocks part of the beam. Neither can be inverted on the fly.. I’m not sure how the 16+ facelift handles things with their LED. But again you are needing to invert the high/low sides of the low beam to meet regs.

With lighting rules not being standard for all markets most carmakers do make separate light assemblies for those markets.

 

[atomic8778]

The 2008-2015 200 series projects the beam lower on the left side than the right, to avoid blinding oncoming traffic. Stuff like this is tightly regulated by our DOT writing rules on the subject.

08-11 does this with a different shaped reflector, 13-15 via a shutter that blocks part of the beam. Neither can be inverted on the fly.. I’m not sure how the 16+ facelift handles things with their LED. But again you are needing to invert the high/low sides of the low beam to meet regs.

With lighting rules not being standard for all markets most carmakers do make separate light assemblies for those markets.

Yup, definitely knew about the LHD/RHD beams aiming at different heights. I appreciate your insights and post.

But my point is that I don't know what would be the difference between RHD and LHD LX570 headlights besides the aiming of the beams, if any. As far as I can tell, they're the same headlights but of course aimed differently. I wasn't aware of any differences in, for example, light output or adaptive turning headlights for '16+ LXs. I think AFS was dropped after 2015 though perhaps ROW lights got them. Hence my comment that JDM headlights are [maybe] the same as US. I should've clarified that I meant besides the adjustments of the beams.

I did find it's a feature on BMWs Light configuration - https://x3.xbimmers.com/forums/showthread.php?t=1576725, but it sounds like a temporary thing, e.g. just driving through.

Anyway, thanks again for your thoughts!