Lexus Troubleshooting Questions? Ask a Lexus Expert
Hello, my name is***** that all the bulbs are the same. They must all be the same brand like GE or Wagner. Check the wires between the failure sensor and the bulb sockets. Bypass the failure module by jumping the Green/White to the Green/Yellow and Green/Red wire. If lights now work then replace the failure module. Here is a picture of module, let me know if you have more questions. Thanks.
I'd start by replacing other side also so it is the same type of light if that doesnt help then bypass sensor module, if that allows brake lights to work then replace the module. Let me know how it goes or if you have more questions, thanks.