Backup Boost Converter Circuit [10/2022 - ]: Wiring Diagram

WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P323A-00.

Refer to DTC P323A-00: Backup Boost Converter "A"; DTC P323A-16: Backup Boost Converter "A" Circuit Voltage Below Threshold; DTC P323B-14: Backup Boost Converter "A" Control Circuit Circuit Short to Ground or Open; DTC P323B-29: Backup Boost Converter "A" Control Circuit Signal Invalid; DTC P323B-38: Backup Boost Converter "A" Control Circuit Signal Cycle Invalid [10/2022 - ]