Headlight Dimmer Switch Circuit [01/2019 - 06/2021]: Description

WARNING: This page is about a different car, the 2022 Toyota Corolla, 2021 Toyota Corolla, 2020 Toyota Corolla, and 2019 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

The steering sensor receives the following switch information:

Light control switch in DRL OFF*1, off*2, tail, head or AUTO position
Dimmer switch in high, low or high flash (pass) position
Fog light switch in front or off position*3
1. *1: w/ DRL OFF Switch
2. *2: w/o DRL OFF Switch
3. *3: w/ Front Fog Light