Sometimes that happens! Impossible to explain why...

Likewise, impossible to understand why you're unable to set the Partial 'Easy Exit' feature.

I guess you're aware that once the Partial 'Easy Exit' feature is set (and SAVED) in LPS it doesn't react until you turn Off the car, right?

 

Yes I'm aware

 

There's something with the seatbelt, as well, where it'll wait until you unbuckle.

 

Is this module the same for F sport and non f sport models? P/N 89221-30332 (for 2013)
I couldn't find much info on it.

 

I think that Part Number is for the Multiplex Network Body ECU that you'd have to tear into the dash to replace. Look HERE to refresh your memory about it

I don't think you want to tear into your dash!

The Seat Position Control ECU Assembly is Part Number 89710-30160 I think. Replacing it requires removing the seat, but at least you don't have to tear into the dash

 

You shouldn't need to fully remove the seat to replace the seat module. I swapped one of @Wanitive into mine to test something else and you just loosen the seat bolt and lean it back and swap.

Reach out to him, he might have some spare ones.
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@fedcrom - Let's do some investigating!

The Easy Exit feature is explicitly linked to the seatbelt circuit - in other words if the seatbelt is not plugged-in (outer seatbelt's tongue plate connected to the inner seatbelt buckle) the Easy Exit feature ain't gonna work! Only when the outer seatbelt's tongue plate is unplugged (and the car turned Off) will the Easy Exit feature work! Likewise, if the seatbelt circuit 'thinks' (for some reason) that the seatbelt tongue plate is plugged-in (when it's really not) the Easy Exit feature is not going to work... And, the car must also be turned Off along with seatbelt being unbuckled for the Easy Exit feature to activate.

Moving forward, (correct me if I'm wrong) we know all motorized positions of the driver power seat operates fully and we know the memory feature works. We also know the steering wheel column motor works. So, Let's check out the seatbelt!

Get in the car and start the engine - don't do anything else. Look at your instrument cluster, is the red seatbelt warning light On - warning that the seatbelt is not buckled?

If there is no red seatbelt warning light (with the seatbelt still loose and not plugged-in (tongue plate not connected) - it might be because the inner or outer seatbelt connection sensor is bad - or it is sending a [false] signal that the seatbelt is already connected. In other words, it thinks it’s plugged-in (tongue plate connected) when it isn’t.

Also, think about if you or anyone else has put anything on the floor behind the driver seat (or even sat behind the driver seat) recently that may have snagged a wire or plug when the item was removed or shifted around during travel. Get a flashlight and trying looking underneath the driver seat for a loose, or partially backed-out or dangling wire or plug.

The only thing that remains is the driver seat Occupant Detection Sensor that detects the driver's weight sitting in the seat. So, if you have a reasonable amount of meat on your bones and your butt weighs more than about 70lbs the Occupant Detection Sensor should trigger the red warning light to come On - warning that the driver's seatbelt tongue plate is unplugged when the car is started.
Just to summarize the rationale of the 'Easy Exit' feature:

Movement to the Driving Position:
With the driver's key fob - to have the driver seat and steering wheel adjust to the driving position (as set by #1, #2 or #3) from its previously retracted 'partial' or 'full' exit position:
► Either buckling the seatbelt or starting the car accomplishes this movement.


Movement to the Exit Position*:
With the driver's key fob - to have the driver seat and steering wheel adjust to the retracted exit position of either 'partial' or 'full' (as set in LPS):
► Only when car is turned Off and the seatbelt is unbuckled will the 'Easy Exit' feature be performed.
(Note: The Easy Exit feature does not function if just the seatbelt is unbuckled - the car must also be turned Off.)

* There is a consolidation of both (1) turning Off the car and (2) unbuckling the seatbelt as a safeguard measure before the Easy Exit feature activates.

 

@fedcrom - Unfortunately, troubleshooting your problem using deductive reasoning leaves too many deeply embedded, open-ended questions that are not easily answered because we lack the troubleshooting checklist and the proper equipment.

I actually have the troubleshooting checklist but it is very extensive, and you do not have the equipment needed to perform the testing.


We know there is likely a coordination of the Seat Position Control ECU Assembly with another ECU.

We know there is likely a coordination of the Main Body ECU (Multiplex Network Body ECU) with another ECU.

We know there is a process coordination with the driver seatbelt that sequentially has a coordination with the car being either turned On or turned Off.

We presume to know there is a process coordination with one or more of the above ECU processes with the driver seat Occupant (Weight) Detection Sensor.

However, we do not know or understand how any of the processes from the above ECU devices influence other devices or their processes.

At this time all we can really do is try to find any element or feature that is not working as it is expected to (e.g. seatbelt warning light) to help in determining where the problem may be, and to eliminate that item as being associated with the problem...

And, you need to:

► Confirm the driver seat is not close to the rearmost or forwardmost position limit or close to the highest or lowest position limit. ◄

 

I replaced the body control multiplex ecu, but it did not fix the issue. I also lost the lock unlock with the new unit, so I put the old one back in. Next, I'll try the driver seat position control ecu assembly.

 

@fedcrom - Man, you've been through hell and back with this. Unfortunately, nothing has worked and you're now going to replace the last ECU to hopefully solve this mysterious problem. I sure hope that fixes it.

I hesitate to mention this, but it makes me wonder if your car's CAN (Controller Area Network) system - that is responsible for linking all of the electronic systems within the car together to allow them to communicate with each other - has somehow become corrupted.

If replacing the driver seat position control ECU assembly doesn't fix it you may have to resort to having the experience of a Master or Senior Lexus technician troubleshoot it and fix it. But that would likely cost a hefty diagnosis charge, and full retail for any placement parts, plus labor. Not something anyone wants to deal with.

Best of luck replacing the driver seat position control ECU assembly to fix it...