DTC P1AC4-9E: Hybrid/EV Battery Stack 1 Current Interrupt Device Stuck On; DTC P1AC5-9E: Hybrid/EV Battery Stack 2 Current Interrupt Device Stuck On [08/2020 - ]: Wiring Diagram
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.
Refer to the wiring diagram for DTC P1A00-1C.
Refer to WIRING DIAGRAM