Headlight (HI-BEAM) Circuit: Description
WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
The body ECU controls the headlight relay, No. 2 daytime running light relay (Marking: DRL NO. 2) and No. 4 daytime running light relay (Marking: DRL NO. 4).