Pattern Select Switch Eco Mode Circuit [08/2020 - ]: Description
WARNING: This page is about a different car, the 2022 Toyota Avalon and 2021 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
When selecting ECO drive mode, the ECO drive mode switch (electric parking brake switch assembly) operation signal is sent to the air conditioning amplifier assembly. Following this, ECO drive mode control is activated for the heater and air conditioning system and the hybrid vehicle control system.