Monitor Description
WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.
If the fuel pressure (for high pressure side) decreases despite an increase request signal being sent to the fuel (engine room side) pump assembly (for high pressure side) by the ECM, the ECM will illuminate the MIL and store this DTC.