Alright, so I've got a 2007 Lexus is350 and recently I've been having lots of issues with the key fob and locking of the vehicle. I bought it used knowing that it had lots of issues already plaguing it, but recently my key fob won't work on the vehicle whatsoever. I can be standing a few feet away from the car and pressing the lock or unlock button and nothing will happen whatsoever and even when I get into the vehicle I have to push the key right against my start button as if my key is dead to start the vehicle (I've replaced my key fob keys multiple times so it's not the case).

I've taken the liberty of searching through some older threads in an attempt to track down my issue and I found that it could possibly be linked to my lock control module in the rear deck so I've removed all the seats and found it and a new one is already on the way, but in the event that it's not that module I've also ordered a new smart key control module ecu (part number 89990-53015), but I haven't been able to find any discussions of where exactly this part is if someone wanted to replace it themselves or if there are any procedures that I'll need to go through to properly program the new ECU with my vehicle.

Any help whatsoever would be greatly appreciated. And if anyone has any suggestions that might solve my car recognizing my key in terms of starting my vehicle without having to go through the dead key fob procedure that would also be a lifesaver, I've been eyeing a new push to start button on eBay though I'm not sure if that'll actually solve anything.

 

Not sure how accurate this pic is, but I found it online. It seems to have the entry modules.

 

Can confirm. That is the location. It's a blue box, about as thick as a deck of cards. Held in with two 10mm bolts.

 

I was scouring Google for literal days looking for this so I'm not sure where exactly you found this at, but you're genuinely a lifesaver, thank you so much. The replacement hasn't come in yet, but I went out and checked behind the liner earlier and saw it sitting there so I'll be replacing that whenever it does if I can't solve the issue before then, I'll keep you guys updated. Thank you for this again.

 

Hello, did you end up finding your issue?