Hello, I have done my due diligence and figured out this was not a valet button issue, nor a theft deterrent issue. After installing a datasystems suspension controller, the key fob worked once to open the trunk, and has stopped working since. All the other functions on the key fob are working, the gas cap opener is working, and sometimes, but rarely, the power closer button will work to close the trunk after I open it with the master key. The trunk was working flawlessly prior to the battery disconnect. Any help would be greatly appreciated.

 

 

Thanks, I have disconnected and reconnected the battery several times with different settings. I read that if you disconnect the battery with the car locked, it will disable the trunk, so I made sure to disconnect it with the car doors unlocked, no cigar.

 

I think the problem was the extreme cold. It's been steady single digits recently. Left the car in the sun today, despite being single digits, the trunk finally started working again.

 

Welp, disappointed to report the fob and entry button for the trunk aren't working. It worked for about 20 minutes that one time and then nothing, tested in a heated garage and a couple more disconnects, still nothing. The power closer still works half the time, the other half of the time it gives a buzz while open and after 2 presses it disables itself. Replaced the key battery today, still nothing. The only part that isn't connected in the car is the passenger airbag, forgot to reconnect it during a data systems controller and install and will reconnect once my Vline comes in but would be very surprising if the passenger airbag is causing the trunk to not work. Will report back once it starts working again.

Edit: Forgot to mention the trunk will work about once every 100 presses of the fob, I believe my trunk mechanism might be broken, but that is really odd given that the power closer still works about 50% of the time.

 

If I remember correctly, there is only one way to open the trunk that does not involve the wireless remote key (fob) and that is by operation of a switch on the dash, near the driver's left knee. Does that method of opening the trunk work reliably?

 

I open mine a lot by a button under the trunk lid by the rear camera, but it definitely has to recognize the fob nearby.

 

The switch by the driver's left knee doesn't work with the key fob nearby, maybe it would work once out of 100 attempts but I've only had that luck with the fob so far. A lexus tech recommended I check the voltage on the wires, so that would be the next step if it continues not to work after I reconnect the passenger knee area airbag.

 

 

Thanks for the feedback, I have pretty much exhausted every troubleshooting option except one chuck mentioned, hopefully I accidentally loosened a connection when I was taking apart the interior and that is causing the malfunction. I can live with manually opening the trunk for a couple weeks but it's hard to go back to after experiencing the supreme luxury of a power opening truck haha. Really appreciate your help. Will report back once I figure out a solution.

 

 

None of this worked for me ...Totally unimpressed with this car!!!!!

 

First, welcome to the forum. That's a pretty old thread. What year LS460 do you own? Are you having issues with it?

 

you dhould have a key on the fob to openn

 

So, I purchased a rebuilt trunk latch mechanism like the one in the photos above. I'm in the process of installing it tonight and suddenly realized that I don't have the torque spec for the 3 x 10mm bolts that hold the latch mechanism to the trunk lid. I did a quick search of this forum including the DIY sticky, but nothing obvious jumped out. Does anyone have the torque spec for those bolts? TIA