P0449 Evaporative control system ventilation solenoid valve circuit malfunction
P0449- OBD-II Trouble Code Technical Description Trouble code P0449 is a generic code that indicates there is a problem with the evaporative emissions control valve control circuit. What does trouble code P0449 mean? Trouble code P0449 indicates a problem with the evaporative emissions control valve control circuit. This means that there is a problem with the electrical components associated with the valve that is responsible for controlling the evaporative control process in the vehicle system. This code may appear along with other trouble codes. Possible Causes Some of the possible causes for the P0449 trouble code are: These are just a few possible causes and it is recommended that you contact a professional auto mechanic for an accurate diagnosis and repair.…
P0439 Catalytic Converter Heater Control Circuit Malfunction (Bank 2)
P0439 - OBD-II Trouble Code Technical Description Trouble code P0439 indicates that the PCM has received an abnormal voltage signal on the catalytic converter heater control circuit (Bank 2). What does trouble code P0439 mean? Trouble code P0439 indicates that the engine control module (PCM) has received an abnormal voltage signal on the catalytic converter heater control circuit (bank 2). This indicates a potential problem with the catalytic converter heater system. Possible Causes Some of the possible causes of the P0439 trouble code are: To accurately determine the cause, the vehicle must be diagnosed using specialized equipment. What are the symptoms of trouble code P0439? Symptoms for a P0439 trouble code may include: These symptoms may occur to varying degrees, depending on...