P0452 2005 TOYOTA PRIUS - EVAP System Pressure Sensor/Switch Low Input
P0452 2005 Toyota Prius Possible Causes
- Faulty Evaporative Emission System (EVAP) Pressure sensor
- Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
- Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection
When is the code detected?
An excessively low voltage from the sensor is sent to Engine Control Module (ECM).
P0452 2005 Toyota Prius Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0452 2005 Toyota Prius Meaning
The Evaporative Emission System (EVAP
) control system pressure sensor detects pressure in the purge line. The sensor output voltage to the Engine Control Module (ECM
) increases as pressure increases. The EVAP
control system pressure sensor is not used to control the engine system. It is used only for on board diagnosis.