What is fault code 3597?

[LeSienna]

Fault code 3597+02 indicates an exhaust system malfunction. The solution is to replace the exhaust system or remove any foreign objects in the exhaust system. Below is relevant information: Constant illumination: If the light remains constantly illuminated, accompanied by insufficient engine power or severe shaking, please visit a service station or repair facility to use a computer diagnostic tool. Conduct a thorough inspection of the vehicle's engine system. When the vehicle's malfunction indicator light is on, it signifies that the engine control unit has detected a potential fault location. It is necessary to use the diagnostic tool to read the fault data for targeted repairs. Engine malfunction warning light: The engine malfunction light is designed to display the operational status of the engine. When turning the key to the "ON" position during startup, the vehicle performs a self-check, and this indicator light will illuminate. After starting the vehicle, the light should automatically turn off. If the light remains illuminated after starting the vehicle or comes on during driving, it indicates a fault in the engine system, such as excessive exhaust emissions, poor combustion conditions, knocking, valve train system malfunctions, abnormal sensor data, etc.