Recently bought a 2010 LX570 and the master drivers door window and lock switch was not working. First thing I tried was buying a salvaged replacement from ebay. I installed it and it actually worked briefly (one car trip) then stopped working and I'm back at the same symptoms. I'm going to start digging in to the FSM and see if I can find anything, as of right now I'm totally unfamiliar with this system. Below is the full list of symptoms as well as what I've done so far to troubleshoot.
Symptoms:
What I've tried:
Anyone have any ideas of where I should start? I will hopefully find a solution and keep track here in case this helps someone else.
Symptoms:
- The driver door lock will not operate the locks (unlock or lock)
- The driver window switch for the driver window works, although the auto does not work
- The driver window switches for the rest of the windows are totally unresponsive
- The windows all work at their respective door switch, BUT something strange is that the auto does not work at first. I have to press the button twice for the window to operate. On the second push, it goes down. Once I roll it all the way up, the auto will work on the first click of the button.
- This is not true for the driver door. I can't get the auto to work even after going up/down all the way and holding the switch.
What I've tried:
- Tried reprogramming the windows by holding the switch down, then up, after operating each window. Held for 5 seconds each way at top and bottom.
- When that didn't work, I ordered a salvaged switch and replaced it.
- Reprogrammed, didn't work.
- The next day, reprogammed again while my wife was driving and the windows and lock started all working fine!
- The following day, does not work anymore and the symptoms are all back identical to the list above.
Anyone have any ideas of where I should start? I will hopefully find a solution and keep track here in case this helps someone else.