P1646 Kia EVAP Vent Solenoid Output Circuit
Possible causes
– Faulty EVAP Vent Solenoid
– EVAP Vent Solenoid harness is open or shorted
– EVAP Vent Solenoid circuit poor electrical connection
– EVAP Vent Solenoid harness is open or shorted
– EVAP Vent Solenoid circuit poor electrical connection
What about the obd code?
The Powertrain Control Module (PCM) has detected the EVAP Vent Solenoid circuit was low
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1646 Kia Description
The Powertrain Control Module (PCM) contains chips called Output Driver Modules that provide 7 switchable ground outputs for operating solenoids, relays, telltales, and other devices. Each of these ground outputs has an internal fault line that feeds back to the PCMs microprocessor. When the output is OFF, the output driver should receive the 12 volts fed to the solenoid, relay, etc. When the output is ON, it should receive 0 volt since it is grounding the output. If it receives 0 volt when the output is OFF or 12 volts when the output is ON, it sets the fault line low.
Kia Vehicle:Kia Amanti,Kia Borrego,Kia Forte,Kia Optima,Kia Rio,Kia Rondo,Kia Sedona,Kia Sorento,Kia Spectra,Kia Sportage,Kia Sorento,Kia KM420,Kia Cadenza,Kia Picanto,Kia Borrego,Kia Forte