P1485 on Kia vehicles indicates that the powertrain control module (PCM) has detected an electrical fault in the EGR (exhaust gas recirculation) vent control solenoid circuit. The PCM monitors the solenoid's command and feedback circuits and sets this code when the voltage or current falls outside the expected range, typically indicating an open, short, or excessive resistance in the wiring or solenoid.
Guidance is general and written for Kia vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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