PlumBob80

I was wondering if anyone knew what steps are needed to modify a 2005 RX 330's fog lights to stay on with the high beams? I found the info on the web & did this modification to my 2010 Tundra but can not find any info pertaining to how to mod an RX. Any help with this would be greatly appreciated.

pauljcl

Fog lights are to be used when there is fog. When there is fog, your high beams (which are not directed 'low') are reflected back to you and blind you more than when you do not use them. I know that in the U.S. many people use their fog lights even when there is no fog. [In Europe, if you do so, you get fined because it is disturbing to oncoming traffic due to the stronger wattage of fog lights.] You do not need the fog lights with your high beams.

kmar

I had a 2000 Tundra some years back and the mod was to remove the fog light relay which was located in a fuse and relay box under the hood, then jumper wire between the two large spade terminals, leaving the other two smaller spade terminals alone. Worked great. When I sold the Tundra, I pulled the jumper wire and replaced the stock relay. I wonder if it works the same way in a 2015 RX 350. Regardless of whether "fog lights" should or should not turn on with high beams, I'd like to run them whenever any lights are on, parking light, low beam or high beam.