voltztron Posted September 27, 2019 Share Posted September 27, 2019 I couldn't find this information anywhere else so I am posting it here for anyone who is looking in the future. I added fog lights to my 2016 Corolla. I was able to use the factory wiring already in place. I had to replace the headlight stalk with one that had the fog light switch. I sourced one from eBay. The wires for the fog lights were already behind the bumper in place. I bought OEM Toyota LED fog lights that fit my car. I found fog light bezels on eBay. I used #10 3/4 hex head screws to install the lights. Once the new switch and lights were installed it just needed the relay for the fog lights. The 10A fuse was already installed from the factory in the fuse relay box under the hood next to the battery. I was unable to locate the location of the relay for the fog lights. I got a subscription to the TIS and was able to locate it through that documentation. It is behind the instrument panel. Once I was able to locate it I installed the relay and the lights work as they should. It is a clean OEM setup. The bonus is the LED fog lights match the color of the factory LED headlights. Relay Part Number: 90080-87026 Toyota LED Headlights: PT413-42191 Headlight Switch: 0R020 17F927 L59 1 Quote Link to comment Share on other sites More sharing options...
Toyota Owners Club Posted September 30, 2019 Share Posted September 30, 2019 Thanks very much for posting up this useful guide and diagram, superb job! Quote Link to comment Share on other sites More sharing options...
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