DTC B1508-19: Turn Signal/Hazard Flasher Circuit Current Above Threshold [06/2018 - 01/2019]: Wiring Diagram

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.