OBDII Codes Possible Causes

The "Possible Causes" is the list of all the items, components or circuits that should be inspected, test, repair or replace to fix the OBDII code. itimaster.ru goal it to help you find the best possible solution to your OBDII code problem.

Harness is open or shorted

It means that the wire(s) connected from and to the component (sensor, solenoids, actuator, etc.) is either open (cut, broken, disconnected) or shorted (touching other wires, components, body). "Open" and "short" are common electrical terms. An open is a break in a wire or at a connection. A short is an accidental connection of the wire to ground or another wire.
In simple electronics, this usually means something won't work at all. With complex electronics (such as ECMs or PCMs) this can sometimes mean something works, but not the way it's supposed to.

Wire circuit example:

Circuit poor electrical connection

It means that the component (sensor, solenoids, actuator, etc.) connector is not fully connected or is disconnected. Before replacing any components, try fully disconnecting the connector, reconnect and test the system or component again.

Faulty or Failed component

It means that the component it's more than likely the cause of the code, and that needs to be replaced.

Engine mechanical problems

When "engine mechanical problem" is listed as possible causes of the OBDII code, it means that the problem is not caused by an electronic component, but rather by a mechanical component such as pistons,
valves, mechanical pump, etc.

Engine Lean System (Lean Mixture)

"Engine Lean" or "Lean Mixture" means there is an excess of air during the engine combustion. The ideal Air/Fuel (A/F) ratio is 14.7:1, which means 14.7 parts of air to one part of fuel.
Intake gaskets, faulty Mass Air Flow (MAF) and faulty A/F Sensors, are common problems when the engine is running too lean.

Engine Rich System (Rich Mixture)

"Engine Rich" or "Rich Mixture" means there is an excess of fuel during the engine combustion. The ideal Air/Fuel (A/F) ratio is 14.7:1, which means 14.7 parts of air to one part of fuel.
Leaking fuel injectors, bad spark plugs, faulty Mass Air Flow (MAF) and faulty A/F Sensors, are common problems when the engine is running too rich.

Related Information

Browse All Codes For Specific Model YearBeta
Ford F150 1998 Ford F150
1999 Ford F150
2000 Ford F150
2001 Ford F150
2002 Ford F150
2003 Ford F150
Ford Fusion 2006 Ford Fusion
2007 Ford Fusion
2008 Ford Fusion
2009 Ford Fusion
2010 Ford Fusion
2011 Ford Fusion
2012 Ford Fusion
Honda Accord 2008 Honda Accord
2009 Honda Accord
2010 Honda Accord
Honda Civic 1996 Honda Civic
1997 Honda Civic
1998 Honda Civic
1999 Honda Civic
2000 Honda Civic
Infiniti G35 2003 Infiniti G35
2004 Infiniti G35
2005 Infiniti G35
2006 Infiniti G35
Nissan Altima 2002 Nissan Altima
2003 Nissan Altima
2004 Nissan Altima
2005 Nissan Altima
2006 Nissan Altima
2008 Nissan Altima
2009 Nissan Altima
2010 Nissan Altima
2011 Nissan Altima
2012 Nissan Altima
Nissan Maxima 2005 Nissan Maxima
2006 Nissan Maxima
2007 Nissan Maxima
2008 Nissan Maxima
Nissan Pathfinder 2005 Nissan Pathfinder
2006 Nissan Pathfinder
2007 Nissan Pathfinder
2008 Nissan Pathfinder
2009 Nissan Pathfinder
2010 Nissan Pathfinder
2011 Nissan Pathfinder
2012 Nissan Pathfinder
Nissan Rogue 2008 Nissan Rogue
2009 Nissan Rogue
2010 Nissan Rogue
2011 Nissan Rogue
2012 Nissan Rogue
2013 Nissan Rogue
Nissan Sentra 2002 Nissan Sentra
2003 Nissan Sentra
2004 Nissan Sentra
2005 Nissan Sentra
2006 Nissan Sentra
2007 Nissan Sentra
2008 Nissan Sentra
2009 Nissan Sentra
2010 Nissan Sentra
2011 Nissan Sentra
2012 Nissan Sentra
Toyota Camry 1997 Toyota Camry
1998 Toyota Camry
1999 Toyota Camry
2000 Toyota Camry
2001 Toyota Camry
2006 Toyota Camry
2007 Toyota Camry
2008 Toyota Camry
2009 Toyota Camry
2010 Toyota Camry
2011 Toyota Camry
Toyota Corolla 2005 Toyota Corolla
Toyota Echo 2000 Toyota Echo
2001 Toyota Echo
2002 Toyota Echo
Toyota Highlander 2001 Toyota Highlander
2002 Toyota Highlander
2003 Toyota Highlander
2004 Toyota Highlander
2005 Toyota Highlander
2006 Toyota Highlander
2007 Toyota Highlander
Toyota Prius 2004 Toyota Prius
2005 Toyota Prius
2006 Toyota Prius
2007 Toyota Prius
2008 Toyota Prius
2009 Toyota Prius
Scion xB 2005 Scion xB
2006 Scion xB
2007 Scion xB
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Posted and Edit by 02/11/2017

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