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Troubleshooting p0506 - Explorer Ford Cars & Trucks

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P0506 is idle control system low-- probable causes. = If there are no other codes, inspect for vacuum leaks, restrictions, and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.

  • check for a bad idle air control valve ( iac ) or remove and clean it. to clean it you can use elec, cleaner etc, do not put body of iac in any liquid just clean carbon and dirt from valve. I have found the best way to clean a iac, is to use an old toothbrush or similar. check the wiring connector to it for bad wires etc. let dry before putting back on vehicle. have a good day ! hope this helps.
  • Posted on Mar 12, 2011

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    Code p0506


    Check Engine light Code P0506 Throttle Body Idle Air Control (IAC) System RPM Lower Than Expected, Do not waste your money Solve the problem of code Throtte Body P0506 with three dollars video Part #1 Remove Throttle Body

    Oct 23, 2013 | Cars & Trucks

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    Nissan altima oem p0506


    code p0506 = idle control r p m

    Aug 19, 2012 | Nissan Altima Cars & Trucks

    1 Answer

    Reason for pontiac code p0506


    Here is some info hope it helps. http://www.obd-codes.com/p0506

    Jun 17, 2012 | 2008 Pontiac Solstice

    1 Answer

    P0506


    P0506 - Idle Air Control (IAC) System RPM Lower Than Expected

    This P0506 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0506 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is lower than the desired (pre-programmed) RPM.
    Potential Symptoms Most likely the only thing you'll notice is the idle speed is lower than normal so it will likely be rougher. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.
    Causes A P0506 DTC trouble code may be caused by one or more of the following:
    • A vacuum leak
    • An air restriction in the intake air path or exhuast
    • A faulty positive crankcase ventilation (PCV) valve
    • Damaged/failed/dirty throttle body
    • Internal engine problem
    • Failed PCM
    Possible Solutions This DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect for vacuum leaks, restrictions, and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.

    Jun 20, 2011 | 2001 Saturn L-Series

    1 Answer

    I replaced the alternator belt and battery. Now it is idleing different. It shows code P0506. I have checked the hoses and connections and I cannot find anything bad. What should I try next?


    Hi:
    Here is info on your code:

    P0506 - Idle Air Control (IAC) System RPM Lower Than Expected

    What does that mean?
    This P0506 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0506 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is lower than the desired (pre-programmed) RPM.

    Potential Symptoms: Most likely the only thing you'll notice is the idle speed is lower than normal so it will likely be rougher. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.

    Causes: A P0506 DTC trouble code may be caused by one or more of the following:
    * A vacuum leak
    * An air restriction in the intake air path or exhuast
    * A faulty positive crankcase ventilation (PCV) valve
    * Damaged/failed/dirty throttle body
    * Internal engine problem
    * Failed PCM


    The first thing to do is clear the code and see if it comes back, and if it does, work your way thru the list of possible causes.

    Sep 09, 2010 | 2005 Ford Mustang

    1 Answer

    P0506 on 2003 expedtion


    P0506 - Idle Air Control (IAC) System RPM Lower Than Expected

    This P0506 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0506 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is lower than the desired (pre-programmed) RPM.

    Potential Symptoms: Most likely the only thing you'll notice is the idle speed is lower than normal so it will likely be rougher. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.

    Causes: A P0506 DTC trouble code may be caused by one or more of the following:
    * A vacuum leak
    * An air restriction in the intake air path or exhuast
    * A faulty positive crankcase ventilation (PCV) valve
    * Damaged/failed/dirty throttle body
    * Internal engine problem
    * Failed PCM

    Possible Solutions: This DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect for vacuum leaks, restrictions, and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.

    Hope helps.

    Jul 31, 2010 | 2003 Ford Expedition

    2 Answers

    Got the codes P0506 and P1400 on an 07' 6-cyl trailblazer??? Any ideas?


    P0506 - Idle Air Control (IAC) System RPM Lower Than Expected

    What does that mean?
    This P0506 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0506 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is lower than the desired (pre-programmed) RPM.

    Potential Symptoms
    Most likely the only thing you'll notice is the idle speed is lower than normal so it will likely be rougher. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.

    Causes
    A P0506 DTC trouble code may be caused by one or more of the following:
    * A vacuum leak
    * An air restriction in the intake air path or exhuast
    * A faulty positive crankcase ventilation (PCV) valve
    * Damaged/failed/dirty throttle body
    * Internal engine problem
    * Failed PCM

    Possible Solutions
    This DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect for vacuum leaks, restrictions, and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.

    May 29, 2010 | 2006 Chevrolet Trailblazer Ext

    1 Answer

    My cadillac deville has the following engine codes when hooed up: P0106, P0121, P0171, P0174, P0335, P0340, P0385, P0442, P0506, P0506, P0507, P0601.


    click on the below links for code details.
    P0106

    P0121

    P0171

    P0174


    P0335


    P0340

    P0385

    P0442

    P0506

    P0507

    P0601.

    all of the above codes seem to have a common cause, they all list a bad ecm (computer) as being a cause, and the last code P0601 points specifically to a bad computer. sorry for the bad news, hope this helps.

    Dec 06, 2009 | 2000 Cadillac DeVille

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