Description
OBD-II Trouble Code Description for P0481 Buick
Fan 2 Control Circuit
What does this mean?
OBD2 Code P0481 Buick definition:
The electric cooling fan is controlled by the powertrain control module (PCM) through the cooling fan relay based on inputs from the following components: – The engine coolant temperature (ECT) sensor – The intake air temperature (IAT) sensor – The A/C selector switch – The A/C refrigerant pressure sensor – The vehicle speed sensor (VSS) The PCM controls the cooling fan by grounding the cooling fan control circuit which turns ON the cooling fan relay. The cooling fan relay will be commanded ON when the following conditions are met: – The engine coolant temperature reaches 106¡ãC (223¡ãF) or more. – The A/C clutch requested. – The vehicle speed is less than 38 MPH. The cooling fan relay will be commanded ON regardless of vehicle speed when the following conditions are met: – The engine coolant temperature is 151¡ãC (304¡ãF) or more. – The A/C refrigerant pressure is high. The cooling fan may be commanded ON when the engine is not running under a fan run-on conditions described in the electric cooling fan general description portion of the service manual.
Symptoms
Possible sumptoms of OBD code P0481 Buick
– Engine Light ON (or Service Engine Soon Warning Light) – Engine overheating
Causes
Possible causes of OBD code P0481 Buick
– Fan control relay harness – Fan control relay connector – Fan control relay – Cooling Fan 2 The Error code is generally activated on detection of the following conditions: The P0482 Buick code is detected when the PCM detects that the commanded state of the driver and the actual state of the control circuit do not match.
Possible Solutions
– Replace the malfunctioning fan control relay 2 – Replaced cooling fan 2
The OBD2 Code Information Be Applicable For Buick
2013 Buick Verano Turbo,2013 Buick Riviera Concept,2013 Buick Encore,2013 Buick Enclave,2012 Buick Verano,2012 Buick Regal GS,2011 Buick Regal,2011 Buick LaCrosse GL Concept,2011 Buick GL8,2011 Buick Envision Concept,2010 Buick Regal GS Concept,2010 Buick LaCrosse,2009 Buick Business Concept,2008 Buick Lucerne Super,2008 Buick LaCrosse Super,2008 Buick LaCrosse CXS,2008 Buick Invicta Concept,2008 Buick Enclave,2007 Buick Riviera Concept Coupe,2006 Buick Terraza,2006 Buick Rendezvous CXL,2006 Buick Rainier CXL,2006 Buick Lucerne CXS,2006 Buick Enclave Concept,2005 Buick Terraza CXL,2005 Buick Royaum,2005 Buick Rendezvous CX,2005 Buick Park Avenue,2005 Buick LeSabre Celebration Edition,2005 Buick LaCrosse CXS,2005 Buick LaCrosse CSX,2005 Buick Century,2004 Buick Velite Concept,2004 Buick Rendezvous Ultra,2004 Buick Regal Abboud GS,2004 Buick Rainier,2004 Buick Park Avenue Ultra,2003 Buick Rendezvous,2003 Buick Park Avenue Ultra,2002 Buick Rendezvous,2002 Buick Regal,2002 Buick LeSabre Custom,2001 Buick Regal,2001 Buick Park Avenue Ultra,2001 Buick Park Avenue,2001 Buick LeSabre,2001 Buick Blackhawk Concept,2001 Buick 2-2 Bengal Roadster Concept,2000 Buick Regal GNX Show Car,2000 Buick Regal Cielo Concept,2000 Buick Regal,2000 Buick Park Avenue,2000 Buick LeSabre Limited,2000 Buick Century
Note:
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