Section 19 (Engine Control System - Diagnostic Codes (P0171-P0195))
WARNING: This page is about a different car, the 2025 Lexus RX 450h+, 2025 Lexus RX 350h, 2024 Lexus RX 450h+, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.
- SFI System
- DTC P0171-00: System Too Lean Bank 1; DTC P0172-00: System Too Rich Bank 1; DTC P1170-00: Fuel Performance/Port Injector; DTC P117B-00: Fuel Performance/Direct Injector [10/2022 - 08/2023]
- DTC P0171-00: System Too Lean Bank 1; DTC P0172-00: System Too Rich Bank 1; DTC P1170-00: Fuel Performance/Port Injector; DTC P117B-00: Fuel Performance/Direct Injector [08/2023 - ]
- DTC P0190-11: Fuel Rail Pressure Sensor "A" Circuit Short to Ground [10/2022 - 08/2023]
- DTC P0190-11: Fuel Rail Pressure Sensor "A" Circuit Short to Ground [08/2023 - ]
- DTC P0190-15: Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open [10/2022 - 08/2023]
- DTC P0190-15: Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open [08/2023 - ]
- DTC P0190-2A: Fuel Rail Pressure Sensor "A" Signal Stuck in Range; DTC P0190-64: Fuel Rail Pressure Sensor "A" Signal Plausibility Failure [10/2022 - 08/2023]
- DTC P0190-2A: Fuel Rail Pressure Sensor "A" Signal Stuck in Range; DTC P0190-64: Fuel Rail Pressure Sensor "A" Signal Plausibility Failure [08/2023 - ]
- DTC P0195-11: Engine Oil Temperature Sensor Circuit Short to Ground [10/2022 - 08/2023]
- DTC P0195-11: Engine Oil Temperature Sensor Circuit Short to Ground [08/2023 - ]