EVAP System Pressure Sensor/Switch Low Input
Table of contents
- Possible Causes
- How To Fix
- Tech Notes
- Cost To Diagnose
- When is the code detected
- Possible Symptoms
- Description
P0452 TOYOTA 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
How do I fix code P0452 TOYOTA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- There is a factory service bulletin for the following Toyota models:
- 2003-2004 Toyota 4Runner
- 2003-2004 Toyota Tundra
- 2004 Toyota Camry
- 2004 Sienna
- 2004 Highlander
- 2004 Solara
- Toyota Factory Service Bulletin OBDII Code P0452
Cost of diagnosing the P0452 TOYOTA code
The cost of diagnosing the P0452 TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
An excessively low voltage from the sensor is sent to Engine Control Module (ECM).
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0452 TOYOTA Description
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 onboard diagnosis.