DTC P1CE9-31: Charger Cooling Fan Revolution Signal No Signal; DTC P1CE9-96: Charger Cooling Fan Revolution Signal Component Internal Failure [08/2023 - ]: Wiring Diagram
WARNING: This page is about a different car, the 2025 Lexus RX 450h+ and 2024 Lexus RX 450h+. However, it is still accessible from the selected car via links, so may be relevant.