One step of IACV-AAC valve movement causes the respective opening of the air by-pass passage. (i.e. when the step advances, the opening is enlarged.) The opening of the valve is varied to allow for optimum control of the engine idling speed. The crankshaft position sensor (POS) detects the actual engine speed and sends a signal to the ECM. The ECM then controls the step position of the IACV-AAC valve so that engine speed coincides with the target value memorized in ECM. The target engine speed is the lowest speed at which the engine can operate steadily. The optimum value stored in the ECM is determined by takig into consideration various engine conditions, such as during warm up, deceleration, and engine load (air conditioner, power steering and cooling fan operation)." property="og:description">
For Shop Owners

P0505 NISSAN - Idle Air Control Valve

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3 What does this mean?

Possible causes

  • Improper idle speed
  • Faulty IACV-AAC valve
  • The IACV-AAC valve harness is open or shorted
  • The IACV-AAC valve circuit poor electrical connection
  • Faulty Engine Control Module (ECM)
What does this mean?

Tech notes

There is a factory service bulletin for the following Nissan models:

2000 Nissan Maxima
2001 Nissan Pathfinder
2000 Nissan Sentra


P0505 Ecm IAC issue 2000 & 2001 Maxima Part 1



P0505 Ecm IAC issue 2000 & 2001 Maxima Part 2



P0505 Ecm IAC issue 2000 & 2001 Maxima Part 3



P0505 Ecm IAC issue 2000 & 2001 Maxima Part 4



P0505 Ecm IAC issue 2000 & 2001 Maxima Part 5



P0505 Ecm IAC issue 2000 & 2001 Maxima Part 6



What does this mean?

When is the code detected?

The P0505 code is set when the IACV-AAC valve does not operate properly.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine hard to start
  • Rough or erratic idle speed

P0505 NISSAN Description

This system automatically controls engine idle speed to a specified level. Idle speed is controlled through fine adjustment of the amount of air which by-passes the throttle valve via Idle Air Control Valve IACV) and Auxiliary Air Control AAC) Valve. The IACV-AAC valve changes the opening of the air by-pass passage to control the amount of auxiliary air. This valve is actuated by a step motor built into the valve, which moves the valve in the axial direction in steps corresponding to the Engine Control Module (ECM) output signals.

One step of IACV-AAC valve movement causes the respective opening of the air by-pass passage. (i.e. when the step advances, the opening is enlarged.) The opening of the valve is varied to allow for optimum control of the engine idling speed. The crankshaft position sensor (POS) detects the actual engine speed and sends a signal to the ECM. The ECM then controls the step position of the IACV-AAC valve so that engine speed coincides with the target value memorized in ECM. The target engine speed is the lowest speed at which the engine can operate steadily. The optimum value stored in the ECM is determined by takig into consideration various engine conditions, such as during warm up, deceleration, and engine load (air conditioner, power steering and cooling fan operation).

OBDII Code P0505 Nissan - Idle Air Control Valve - itimaster.ru

P0505 NISSAN Information for specific Nissan models

Need more help?

Do you need more help with the P0505 Nissan code? Ask a question to our users or find an automotive repair shop near you to help fix the OBDII code

P0505 NISSAN Comments

Help us improve itimaster.ru. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P0505 Nissan code? Have you replaced any parts?
Any information is appreciated. Thanks
Repair Importance Level: 3
1=Low 2=Medium 3=High
Repair Difficulty Level: 3
1=Easy 2=Moderate 3=Hard

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
Advertisement
Home - For Shop Owners - About itimaster.ru - Privacy Policy - Terms and Conditions - - Copyright 2010-2018 itimaster.ru
itimaster.ru - - - -
Posted and Edit by 08-09-2017

Related pages


honda civic 2002 problemsford 4.6 cylinder locationbmw x5 level control system failureford f250 ficmp1151 ford codehonda elemchrysler sebring 2007 problemswhat is a evaporative emission systemdistributor for 2000 honda civic2006 saturn ion air filter2006 vw jetta tdi camshaft replacement2001 mitsubishi galant egr valve2005 honda accord timing chainmercedes transmission codes2003 kia sorento battery2002 explorer transmission problems2001 nissan altima temperature sensor2001 hyundai tiburon transmission2007 mercedes c230 transmission problemsdenali bankcode p0344fault code p01132003 ford expedition idle problemskia throttle position sensor2005 ion saturnchevy transmission slipping2005 chevy cavalier oil filter locationp0420 toyota camry 20022004 ford f150 firing orderp0703 ford2005 bmw 545i problemsantifreeze honda accord1998 toyota corolla engine diagramdodge camshaft position sensortrailblazer oil light resetcode p0171 ford2007 hyundai sonata fuel pumpnissan maxima firing orderhonda prelude transmission problemscraigs auto body2001 nissan sentra service engine soon light99 oldsmobile bravada2011 honda accord enginehonda accord map sensorp0113 intake air temperature circuit high input2005.5 jettatoyota pcmp0113pump malfunctionhow to clean idle air control valve fordford expedition engine problemsfuel tank pressure sensor circuit low voltagetrailblazer fuel pumphonda insight catalytic converter1999 ford explorer battery98 honda civic clutch replacement2004 ford taurus fuel pump replacement1998 honda accord p1456catalytic converter ford focus 200198 chevy lumina mpg1999 pontiac grand am enginewhat is iacvtoyota corolla 2006 check engine lightfuel pump 2005 chevy impalawhere is crank position sensor located2001 grand prix transmissiondodge dakota batterye46 torque converter2008 cadillac sts problemscatalyst system efficiency below threshold bank 12004 dodge stratus transmission problemshonda fit o2 sensorsuzuki forenza transmission range sensorrx8 obdegr hondaavalanche stabilitrak problem2006 f250 egr valve2008 chevy malibu transmission problemsford f150 window motortruck pro hattiesburg ms