DTC B1805: Short in P Squib Circuit; DTC B1806: Open in P Squib Circuit; DTC B1807: Short in P Squib Circuit (to Ground); DTC B1808: Short in P Squib Circuit (to +B) [04/2018 -]: Wiring Diagram
WARNING: This page is about a different car, the 2022 Toyota Avalon, 2021 Toyota Avalon, 2020 Toyota Avalon, and 2019 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.