Ls400 Faulty Central Locking

[avuse31]

Hello, I have just bought a 1999 Lexus LS400. I have one small problem with it and thought I would check if it is common or if anyone else has come across it. My central locking doesn't work from the remote or by putting the key in the door. The central locking works perfectly if I press the locking button beside the window switches, it locks and unlocks perfectly. When I exit the car and try to lock it from either door or use the remote (I have checked and the Battery is O.K. and the LED illuminates) the central locking doesn't work. It's obviously not the end of the world but is alot handier if I could get it to work. I have checked all the fuses are O.K. but as the button inside works the locking and the doors lock individually with the key I am completely lost.

Cheers Simon

[SteveLS400]

Hello, I have just bought a 1999 Lexus LS400. I have one small problem with it and thought I would check if it is common or if anyone else has come across it. My central locking doesn't work from the remote or by putting the key in the door. The central locking works perfectly if I press the locking button beside the window switches, it locks and unlocks perfectly. When I exit the car and try to lock it from either door or use the remote (I have checked and the battery is O.K. and the led illuminates) the central locking doesn't work. It's obviously not the end of the world but is alot handier if I could get it to work. I have checked all the fuses are O.K. but as the button inside works the locking and the doors lock individually with the key I am completely lost.

Cheers Simon

Simon

See if you can upload a picture or 2 of your remote.

[lexusn1ce]

i had the same problem with my 93 ls when i first got it i fixed it myself its the little swithches on the back of the lock, they detect when you are turning the key and arm the alarm and lock the doors, you can either take them off and clean them as they get corroded or you can replace them, they are not fun to get to and require the door card to be removed and then you should be able to reach up inside and undo the bolt that retains the lock, theres also some rods to remove from the lock.

remember to do passengers side too because if one is shorted the other wont work, as for the fob i gave up on mine costs silly money to fix its much easier to get and after market system and fit yourself i have seen a few that even wind up the windows and close the sun roof for not much over 50 quid.