Description
OBD-II Trouble Code Description for P0446 Toyota
Evaporative Emission System Vent Control Circuit
What does this mean?
OBD2 Code P0446 Toyota definition:
Evap vent valve has only one purpose. It closes in order to seal the vent so the EVAP system can pressurize and ensure there are no leaks. Evap vent valve is usually supplied Batt. voltage with key on. The ECM’s driver controls the ground, and when grounded, activates the valve (closing it). If the ECM detects a short to ground, and open,or a short to battery voltage on the control circuit, P0446 Toyota will set. Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain vacuum during test.
Symptoms
Possible sumptoms of OBD code P0446 Toyota
There will be no obvious symptoms to driver, other than MIL illumination.
Causes
Possible causes of OBD code P0446 Toyota
A code P0446 Toyota could mean one or more of the following has happened: Faulty vent valve Open, short or excessive resistance on Vent valve control circuit Blockage of vent valve Bad PCM
Possible Solutions
With a P0446 Toyota OBD-II trouble code, here are some things to try: Replace Vent valve Repair open, short, or resistance problem in control circuit Repair open, or short, or resistance problem in power circuit Replace PCM
The OBD2 Code Information Be Applicable For Toyota:
2013 Toyota Auris,2012 Toyota Yaris,2012 Toyota Verso-S,2012 Toyota Tacoma,2012 Toyota Prius V,2012 Toyota Prius C,2012 Toyota Prius,2012 Toyota Hilux,2012 Toyota Camry,2012 Toyota Avensis,2012 Toyota Aurion,2012 Toyota 86 GTS,2011 Toyota Tacoma,2011 Toyota Sienna,2011 Toyota Sequoia,2011 Toyota RAV4,2011 Toyota Matrix,2011 Toyota Highlander,2011 Toyota Corolla,2011 Toyota Avalon,2011 Toyota Auris HSD,2010 Toyota iQ3,2010 Toyota Yaris,2010 Toyota Verso,2010 Toyota Tundra,2010 Toyota Prius,2010 Toyota Land Cruiser,2010 Toyota Corolla,2010 Toyota Camry,2010 Toyota Auris,2010 Toyota 4Runner,2009 Toyota iQ,2009 Toyota Yaris,2009 Toyota Venza,2009 Toyota RAV4,2009 Toyota Matrix,2009 Toyota Hilux,2009 Toyota Aygo,2009 Toyota Avensis,2009 Toyota Aurion,2009 Toyota 4Runner,2008 Toyota Sequoia,2007 Toyota Tundra,2007 Toyota Avensis,2006 Toyota RAV4,2006 Toyota Aurion,2005 Toyota Corolla Sedan,2004 Toyota Prius,2004 Toyota Corolla,2003 Toyota RAV4,2003 Toyota Land Cruiser,2003 Toyota Celica
Note:
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