Headlight Dimmer Switch Circuit [08/2013 - ]: Description
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
The main body ECU (multiplex network body ECU) receives the following switch information:
- Light control switch in off (DRL OFF), tail, head or AUTO position
- Dimmer switch in high, low or high flash (pass) position
- Front fog light switch in on or off position