What is fault code 3597?
3 Answers
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.
The other day I encountered trouble code 3597, and the decoder indicated it was an issue with the purge valve circuit in the evaporative emission system. This code usually means there's a fault in the valve control circuit, possibly due to a broken wire, corroded connector, or stuck valve body. While driving on the highway, I noticed a strong gasoline smell, and the dashboard light kept coming on, which was quite annoying. If left unfixed for a long time, it could lead to excessive emissions, potential failure in annual inspections, and increased fuel consumption. Checking it isn't too difficult: use an OBD scanner to read the data stream and check for abnormal voltage, or pop the hood yourself and trace the wiring to the purge valve—usually located near the fuel tank or engine—then squeeze the hose to see if it's clear. If you're handy, you can test the wire resistance, but don't overdo it and create safety risks. Once fixed, the system stabilizes, making driving much more reassuring.
Last month, my car lit up a 3597 code, and after some research, it turned out to be an issue with the EVAP system's purge control valve circuit. The symptoms weren't obvious—just occasional whiffs of gasoline smell or a few engine shakes during acceleration. Ignoring it not only causes significant pollution but could also lead to overheating and burning out the fuel pump. I tried fixing it myself: first checked the fuse box to confirm no fuses were blown, then inspected the wiring harness for any signs of rodent damage; if that didn't work, a trip to the professional shop was next. Mechanics often advise regularly cleaning the valve to prevent carbon buildup, especially in older cars. Remember to disconnect the battery before working to avoid short circuits and damage. After sorting it out, the car runs smoothly, saving fuel and being more eco-friendly.
