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December 18, 2024 Service bulletin

MIL ON condition with Diagnostic Trouble Code (DTC) P24517F ? Evaporative Emission System Switching Valve...

Lexus technical service bulletin TTT074523 for 2023 Lexus RX Hybrid.

Bulletin number
TTT074523
Component
Engine and engine cooling: exhaust system: emission control
Summary
TSB: Some 2023 model year RX 500h vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P24517F ? Evaporative Emission System Switching Valve Actuator Stuck Off present. This DTC may erroneously be displayed when the fault is related to DTC P14502A ? Fuel Tank Pressure Sensor Signal Stuck in Range. The Engine Control Model (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified so DTC P24517F will not be erroneously detected. Follow the Repair Procedure in this bulletin to address these conditions.

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