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Hi i have a 2000 ram van with a v6 i recently am getting a trouble code po505 i did the iac valve cleaned etc could you tell me what a sebc11 is it is refered in the service manual as the problem?

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  • glrsr1951 Dec 20, 2008

    Check engine light came on on my 2000 Dodge Ram 1500 V8. Getting PO505 "Idle Control System Malfunction' code. Reset and light goes off but comes right back the next time I start the engine. Need Help.

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Contact your nearest dodge dealer and ask a service tech they can tell you what it means

Posted on Aug 13, 2008

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2000 dodge ram TCS been replaced still get code p0505


Code 505 is for a problem with the idle air control valve.
It could be the valve, or a dirty throttle body, or a problem in the harness.
If you replaced the IAC and the throttle body is clean, and the code remains, you probably need to open the harness and check the wires.

Aug 18, 2012 | 2000 Dodge Ram 1500 Truck

1 Answer

Nissian path finder 2000 code p0505


That is idle air control (IAC) system malfunction,it's causes may include:
IAC motor connector is damaged (check connector and pins for damage, and moisture);
One or more IAC circuits open or shorted to ground;
One or more IAC circuits are shorted to voltage;
IAC has failed; or PCM has failed
You can clearing the fault codes. Then unplug the IAC and start the engine. If the P0505 code doesn't reset, replace the IAC. It is internally shorting one of the IAC circuits. If the code DOES return after unplugging the IAC and starting the engine, then you know it isn't the IAC motor. Visually check the wiring harness all the way back to the PCM. You may need to visually inspect the harness by removing all the insulation off the wires. It is possible that the wires could be shorting to eachother or to other wires in the harness.

Hope this helpful.
greetings

Plus: DTC table click here.

Nov 10, 2011 | 2000 Nissan Maxima

1 Answer

I have a code for my 1995 Plymouth neon its p0505 with is a idle air control and i can not find any diagrams for what might be the problem could it be as simple as a new air filter??


The air filter has nothing to do with an codes you get.

The PO505 --IAC (Idle Air Control Valve) should
be on the throttle body near the base.

You can remove & clean it or replace

May 23, 2011 | 1995 Plymouth Neon

2 Answers

Actron trouble code PO505 99 acura


P0505 - IAC (Idle Air Control) System Malfunction

The IAC (Idle Air Control) valve controls the idle speed of the engine. At idle the throttle plate is closed, of course. The IAC is computer controlled and allows only a certain amount of air around the throttle plate. This metered air controls the idle speed. The IAC has a "plunger" or "shutter" that moves to open or close the bypass air passageway. The more air the IAC allows around the throttle plate, the higher the idle. The PCM (Powertrain Control Module) uses the IAC valve to keep the idle speed correct with varying engine demands. Can be a three or four wire sensor depending on the model.

The PCM monitors voltages of the IAC circuits and if it detects an incorrect voltage on one or more of the IAC motor circuits it will set P0505. NOTE: Problems with the IAC would only be noticeable at idle or when throttle is closed.

Symptoms may include:
* MIL (Malfunction Indicator Lamp) illumination
* Engine stalls and may not idle unless throttle is depressed
* Intermittently stalls when letting off the throttle
* Engine may idle too high


Potential causes of an P0505 code include:
* IAC motor connector is damaged (check connector and pins for damage, and moisture)
* One or more IAC circuits open or shorted to ground
* One or more IAC circuits are shorted to voltage
* IAC has failed
* PCM has failed


Possible Solutions:
This should be a fairly straightforward diagnosis. Start by clearing the fault codes. Then unplug the IAC and start the engine (This may cause other IAC codes to set. Just ignore them for now). If the P0505 code doesn't reset, replace the IAC. It is internally shorting one of the IAC circuits. If the code DOES return after unplugging the IAC and starting the engine, then you know it isn't the IAC motor. Visually check the wiring harness all the way back to the PCM. You may need to visually inspect the harness by removing all the insulation off the wires. It is possible that the wires could be shorting to eachother or to other wires in the harness.

If there are no wiring problems, and the code keeps returning with the IAC unplugged, you can check the PCM by removing the IAC wires from the PCM connector (or clipping the wires in a location where they can be repaired easily) and then start the engine (If you're not sure, don't do it. Take it to a qualified professional). Now if the code doesn't reset there is a problem with the wiring. Check for continuity on all the IAC wires. Any resistance points to a problem. Check for voltage on any(At this point there shouldn't be any voltages on the wires because they're clipped at one end and unplugged at the IAC). Repair as necessary. But if the P0505 code DOES reset after removing the IAC wires from the PCM connector(or clipping them), replace the PCM, there's a problem internally on the IAC control circuit.

Hope this helps (remember to rate and commene this).

Jan 06, 2011 | 1996 Acura TL Series

1 Answer

The car will not start. It seems that it is getting no fuel. Engine cranks, sputters, dies. Sometimes it will start; sometimes not.This is a 2001 new beetle with about 125K miles. Has had tune up (new...


You need a trouble code to help you where to start looking. Take the car or have sombody scan for a code. They will tell you where to begin looking. It does not tell you what exactly the problem is, but will tell you which part of the engine is having trouble. It can be a sensor or electronic valve Such as EGR , or IAC valves.

Dec 29, 2009 | 2003 Volkswagen New Beetle Convertible

1 Answer

Changed the iac and still p0505 code


Make sure connection to IAC are clean & good, and make sure you sprayed port that IAC came out of well to clean it too with throttlebody spray cleaner. Also, check all vacuum lines and intake hoses as well for cracks, holes etc. Have you stopped at Autozone, or Pep boys and have them scan & remove code, just to see if it comes back?

Oct 08, 2009 | 2000 Dodge Ram 3500

2 Answers

Change the iac on a dodge ram b3500 van and still have the p0505


the idle air control is on the back of the throttle body. it has a plug going to it and is held to the throttle body with 2 screws

Oct 08, 2009 | 2000 Dodge Ram 3500

1 Answer

Engine idle problem comes and goes but shows no check engine light.


4CYL or V6?? Clean/Replace your IAC valve as this will cause rough/erratic idles(may happen intermittedly). IAC valve motor possibly sticking due to dirt and carbon build-up. I also recommend a full tune-up, including air filter, and intake cleaning if this hasn't been done recently. Hopefully this helps....

Aug 13, 2009 | 2001 Toyota Camry

1 Answer

Low idle with vibration and turns off when in reverse of drive every now and then and stirring wheel feel like its going to lock when turnign but all fluids have been checked and ok battery and alternator...


4cyl or V6?? Start at cleaning/replacing the IAC valve(idle air control valve),MAF sensor(V6 only) and cleaning the intake. At this time, I recommend replacing the air filter and sparkplugs(if not done recently). The IAC valve may be dirty or defective causing rough, low, or no idle. hopefully this helps

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1 Answer

IDLING PROBLEM


sister had this issue turned out it was the fuel sender unit in the tank

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