Howdy!
My first public request on my 2008 Is250.

I need your help to find the relay for the fog lights. Yea I found the fuse…

Location and pics would be great!
Thank you!

 

If you found the Fog Light 15 Amp fuse, you found the Front Controller Module. It's inside that module and IIRC, its potted and none serviceable. Replace the module.

It's shown here on the left. So you checked the bulbs and you know the low beam headlight has to on to enable the fog lights or are you trying to bypass that function?

 

Yes. Understood. Thanks!