EVAP System Pressure Sensor/Switch High Input


Table of contents

P0453 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 P0453 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 Toyota Sienna
  • 2004 Toyota Highlander
  • 2004 Toyota Solara
  • Toyota Factory Service Bulletin OBDII Code P0453

Cost of diagnosing the P0453 TOYOTA code

  The cost of diagnosing the P0453 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 high voltage from the sensor is sent to Engine Control Module (ECM).

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0453 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.

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