DIY yaris III fog lights installation - Toyota Yaris Forums

croustian68 · Yesterday, 08:40 PM

Hi everyone,
I’m currently adding fog lights to my 2016 Canadian Yaris Hatchback (LHD). The car is pre-wired (I’ve found the plugs behind the bumper and the FOG FR fuse is present in the interior panel).
I want to use the factory wiring to keep the installation clean, but I have a specific request: I do not want to replace the steering column stalk (arm). I prefer to relocate the fog light switch to one of the empty slots in the dash, next to the mirror controls.
My situation:
I’ve identified two small connectors near the steering column (one with green wires, one with black wires), but they are too short to reach the dash.
I know I need to install the relay in the "hidden" location behind the Junction Block/Body ECU.
My questions for the experts:
Which specific wire on the steering column harness should I tap into to trigger the factory relay?
If I bridge this wire to a ground through a dash switch, will the factory circuit work (provided the low beams are on)?
Does anyone have the pinout or wire colors for the headlight stalk connector on a 2016 Canadian model to make sure I trigger the right signal?
I’m trying to avoid pulling the steering wheel and changing the stalk while still utilizing the pre-installed harness for the lights themselves.
Any help or wiring diagrams would be greatly appreciated!

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Yesterday, 08:40 PM	#38
croustian68 Drives: Yaris LE 5dr 2016 AT Blue Join Date: May 2020 Location: Montreal Posts: 10	Hi everyone, I’m currently adding fog lights to my 2016 Canadian Yaris Hatchback (LHD). The car is pre-wired (I’ve found the plugs behind the bumper and the FOG FR fuse is present in the interior panel). I want to use the factory wiring to keep the installation clean, but I have a specific request: I do not want to replace the steering column stalk (arm). I prefer to relocate the fog light switch to one of the empty slots in the dash, next to the mirror controls. My situation: I’ve identified two small connectors near the steering column (one with green wires, one with black wires), but they are too short to reach the dash. I know I need to install the relay in the "hidden" location behind the Junction Block/Body ECU. My questions for the experts: Which specific wire on the steering column harness should I tap into to trigger the factory relay? If I bridge this wire to a ground through a dash switch, will the factory circuit work (provided the low beams are on)? Does anyone have the pinout or wire colors for the headlight stalk connector on a 2016 Canadian model to make sure I trigger the right signal? I’m trying to avoid pulling the steering wheel and changing the stalk while still utilizing the pre-installed harness for the lights themselves. Any help or wiring diagrams would be greatly appreciated!