Originally Posted by kenforum

His previous post seems to state that the sequential circuit is in the taillight:

"Due to new cars having a CAN system(Controller Area Network) almost every component has a "computer" or more specifically, some sort of electronic circuitry that can communicate with the body computer. In the RCL and BUL these "computers" will report any outage issues as well as a current on vs off function for the lamp.With that being said, what determines how the lamp lights up is the computer that is INSIDE the lamp. So unless you swap out said computer and design you own computer (which is impossible without destroying your lamp) you will not get sequential turn signals."

What I wonder is, can I "plug and play" the lights from japan and then the computer in the new light can communicate with the ECU of the car automatically?

Originally Posted by kenforum

Sorry but I'm confused...I thought BUL ("back up light" is just that single light bulb that turns on when you shift to R? How can the BUL perform the sequence? By the way, I have the "high grade" lamp according to your definition.

Originally Posted by 760A

Yes, its plug and play if you source the 740's, they send the same signals to the BCM.

Originally Posted by 760A

Sorry for the double post, But the automotive industry calls the lamp that contains the Back Up function a BUL regardless of what other functions it contains.

Originally Posted by kenforum

Just to confirm, am I right about the difference between BUL and RCL in the pic?



Attachment 382827

Also, so then you mean I can buy the BUL from e.g. japan and plug and play?

Originally Posted by 760A

Yes, your illustration is correct, and if you have the LED turn(High grade) RCL from the North American market, all you need is the BUL from the 740 (Japaneses) market to have sequential turn signals. (FYI Pictured in your illustration is the base grade)

Originally Posted by kenforum

Yes I just googled a random tail light pic; mine is the LED turn signal "High grade".
Thanks so much for the info!
Next challenge: sourcing the 740 BUL!

Originally Posted by 760A

Go to japan, Find a Lexus Dealer, buy lamps, ship back home. Or wait a few years for "JDM" parts on Ebay.

There might be a few other ways I can think of but I do not want to comment on them.

Again

"I take no responsibly of the content of this post, and do not recommend doing this. FMVSS 108 regulations should be followed. These are the opinions of myself and do not reflect on an

Originally Posted by ghabicht

So now we wait for some brave soul to actually do this and tell the rest of us...

Originally Posted by RXOwner

I am thinking around $2000

Originally Posted by Bearcat

One triple beam LED on the front is over $2k

Originally Posted by kenforum

Called a lexus dealer and found out the cost of one 760A BUL is about $492. Hope the 740A is not too much more expensive.