Lincoln P0509 Idle Air Control System Circuit High

Description

OBD-II Trouble Code Description for P0509 Lincoln

Idle Air Control System Circuit High

What does this mean?

OBD2 Code P0509 Lincoln definition:
The ECM has detected that the IAC counts are higher or lower than expected, the engine speed is not in its expected range.

Symptoms

Possible sumptoms of OBD code P0509 Lincoln
– Engine Light ON (or Service Engine Soon Warning Light) – Engine hard to start – Rough or erratic idle speed

Causes

Possible causes of OBD code P0509 Lincoln
– Dirty throttle body – Electric throttle control actuator misadjusted or damaged – Faulty Electric throttle control actuator – Intake air leak – Poor electrical connection to the Intake Air Control (IAC) valve

Possible Solutions

If there are no intake leaks, clean throttle body, adjust engine idle and erase engine code. If the code comes back you may have to replaced the Electric Throttle Control Actuator (Motor) to repair the problem.


The OBD2 Code Information Be Applicable For Lincoln:

2013 Lincoln MKZ,2013 Lincoln MKT,2013 Lincoln MKS,2013 Lincoln MKC,2012 Lincoln MKZ,2011 Lincoln MKX,2010 Lincoln MKZ,2010 Lincoln MKT,2009 Lincoln MKS,2009 Lincoln C Concept,2008 Lincoln MKT Concept,2007 Lincoln Navigator,2007 Lincoln MKZ,2007 Lincoln MKX,2007 Lincoln MKR Concept,2006 Lincoln Zephyr,2006 Lincoln Mark LT,2006 Lincoln MKS Concept,2004 Lincoln Mark X Concept,2004 Lincoln Aviator Concept,2003 Lincoln Town Car,2003 Lincoln Aviator,2001 Lincoln MK9

 

Note:

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