Related DTCS

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.

DTC No.	SAE	Monitoring Item	Link
P00FE-00	P00FE	EVAP vent line blocked	Refer to DTC P00FE-00: EVAP System Tank Vapor Line Restricted/Blocked [10/2022 - ]
P0171-00	P0171	Purge VSV stuck open*	Refer to 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] , or refer to 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 - ]
P043E-00	P043E	Reference orifice clogged (built into canister pump module)	Refer to DTC P043E-00: Evaporative Emission System Leak Detection Reference Orifice Low Flow; DTC P043F-00: Evaporative Emission System Leak Detection Reference Orifice High Flow; DTC P2400-7E: Evaporative Emission System Leak Detection Pump Control Circuit Actuator Stuck On; DTC P2400-7F: Evaporative Emission System Leak Detection Pump Control Circuit Actuator Stuck Off; DTC P2418-7E: Evaporative Emission System Switching Valve Control Circuit Actuator Stuck On [10/2022 - ]
P043F-00	P043F	Reference orifice high-flow (built into canister pump module)
P0441-9C	P0441	Purge VSV (Vacuum Switching Valve) stuck closed No. 1 check valve stuck closed Purge flow	Refer to DTC P0441-9C: Evaporative Emission System Incorrect Purge Flow Low/Insufficient Flow [10/2022 - ]
P0450-11	P0452	Canister pressure sensor (built into canister pump module) voltage low	Refer to DTC P0450-11: Evaporative Emission System Pressure Sensor/Switch Circuit Short to Ground; DTC P0450-15: Evaporative Emission System Pressure Sensor/Switch Circuit Short to Battery or Open; DTC P0450-2F: Evaporative Emission System Pressure Sensor/Switch Signal Erratic [10/2022 - ]
P0450-15	P0453	Canister pressure sensor (built into canister pump module) voltage high
P0450-2F	P0451	Canister pressure sensor (built into canister pump module) signal noise
P0455-00	P0455	EVAP gross leak	Refer to DTC P0455-00: Evaporative Emission System Leak Detected (Large Leak); DTC P0456-00: Evaporative Emission System Leak Detected (Very Small Leak) [10/2022 - ]
P0456-00	P0456	EVAP small leak
P148D-7E	P148D	No. 1 check valve stuck open	Refer to DTC P148D-7E: Purge One Way Valve Stuck Open [10/2022 - ]
P2400-7E	P2402	Leak detection pump stuck on (built into canister pump module)	Refer to DTC P043E-00: Evaporative Emission System Leak Detection Reference Orifice Low Flow; DTC P043F-00: Evaporative Emission System Leak Detection Reference Orifice High Flow; DTC P2400-7E: Evaporative Emission System Leak Detection Pump Control Circuit Actuator Stuck On; DTC P2400-7F: Evaporative Emission System Leak Detection Pump Control Circuit Actuator Stuck Off; DTC P2418-7E: Evaporative Emission System Switching Valve Control Circuit Actuator Stuck On [10/2022 - ]
P2400-7F	P2401	Leak detection pump stuck off (built into canister pump module)
P2418-7E	P2419	Vent valve stuck closed (built into canister pump module)
P2418-7F	P2420	Vent valve stuck open (vent) (built into canister pump module)	Refer to DTC P2418-7F: Evaporative Emission System Switching Valve Control Circuit Actuator Stuck Off [10/2022 - ]
P2610-29	P2610	Soak timer (built into ECM)	Refer to DTC P2610-29: ECM/PCM Engine Off Timer Performance Signal Invalid; DTC P2610-93: ECM/PCM Engine Off Timer Performance No Operation [10/2022 - ]
P2610-93	P2610	Soak timer (built into ECM)

*: If Purge VSV is stuck open, air is sucked in from Purge VSV, and the air fuel ratio becomes Lean and stores P0171-00.

If any EVAP system DTCs are output, the malfunctioning area can be determined using the table below.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE:

If the reference pressure difference between the first and second checks is more than the specification, all the DTCs relating to the reference pressure (P043E-00, P043F-00, P2400-7E, P2400-7F and P2418-7E) will all be stored.