I installed LED Projection Door Welcome ligts on my 2011 LS460. The passenger side works but the drivers side does not. Switched back to the original lights and I am experiencing the same problem. HELP!

 

Do you have an ohmmeter to check voltage?

 

Swap the bulbs to the other door to make sure you have good bulbs.
First thing is to check for voltage using a test light or multi meter to determine if voltage is present at the bulb socket...... IF no voltage is there then check the fuses and if the fuses are good then start chasing the wires back looking for voltage at the connectors. This may get complicated for you so be prepared to get frustrated.

 

Thanks, I will have this checked and let you know the outcome. All of the others are working, so I hope that it is just a fuse. I really like the lights

 

Pull out the assembly/housing first and see how the connections look. Go from there. Fuses15, 22 and 23 located under the drivers side footwell area are the fuses you'll want to look at..