AutoCodes - Toyota - P0451 2004 TOYOTA HIGHLANDER

P0451 2004 TOYOTA HIGHLANDER Code - EVAP System Pressure Sensor Range/Performance

Repair Importance Level: 1/3
Repair Difficulty Level: 3/3
Table of contents

|P0451 2004 TOYOTA HIGHLANDER code possible causes

  • Faulty Evaporative Emission System (EVAP) Vapor Pressure Sensor
  • Evaporative Emission System (EVAP) Vapor Pressure Sensor harness is open or shorted
  • Evaporative Emission System (EVAP) Vapor Pressure Sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

|How do I fix the P0451 2004 TOYOTA HIGHLANDER code?

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.

|P0451 2004 TOYOTA HIGHLANDER code tech notes

There is a Factory Service Bulletin for the 2004 Toyota Highlander:
2004 Toyota Highlander Factory Service Bulletin OBDII Code P0451

|Cost of diagnosing the P0451 2004 TOYOTA HIGHLANDER code

Labor: 1.0

The cost of diagnosing the P0451 2004 TOYOTA HIGHLANDER code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P0451 2004 TOYOTA HIGHLANDER code detected?

An out of range voltage from the sensor is sent to Engine Control Module (ECM).

|What are P0451 2004 TOYOTA HIGHLANDER code possible symptoms?

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

|P0451 2004 TOYOTA HIGHLANDER code description

The Evaporative Emission System (EVAP) vapor pressure sensor, VSV for canister closed valve (CCV) and VSV for pressure switching valve are used to detect abnormalities in the evaporative emission control system. The Engine Control Module (ECM) decides whether there is an abnormality in the evaporative emission control system based on the vapor pressure sensor signal.
OBDII Code P0451 2004 Toyota Highlander - EVAP System Pressure Sensor Range/Performance - AutoCodes.com

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|P0451 2004 TOYOTA HIGHLANDER code comments

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Repair Importance Level: 1
 
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