All,
Suddenly I had those unrelated issues together yesterday afternoon from my 2002 Lexus LS 430:
1. remote key could not lock or unlock the doors
2. inside the car, could not open the trunk door, could open manually with the remote key
3. inside the car, could not open the gas door, had to open the trunk and pull the rope
4. inside the car, power door lock not working, could not open other side windows, except the driver side window
5. could not adjust both side mirrors
6. if leave the headlights on auto, lights would stay on after turning off the car and locked the door.
7. a few times, when I started the engine, alarm would sound, would not stop even the car was turned off.

all other works and no issue driving.
checked all 6 fuse boxes, no issue.
The funny thing was that around 8 pm yesterday, all worked and back to normal.
This morning, all worked, around 2 pm, all issues resumed.

I had battery died a week ago, AAA checked and no issue with the battery, might leave the radio on too long the night before without starting the car.

Had a custom Kenwood radio/back camera combo. Did the vsc light off reset successfully the other day due to smog check, shorted the pin 3 (top) and 5(bottom) per forum instruction, no issue.

Please help.

 

by the way, at 9:27 pm, the remote works and all issues disappeared again just like last night. Maybe related to heat? After I drive for a few times, the issue resumed, now idle for a few hours, back to normal?