P0505 Toyota Code - Idle Air Control System

How can I fix The problem.?

What model and year is your Toyota?

2009 Corolla 1.8L

Any other symptoms? sound like you have to replace the Throttle Body. Before replacing any parts, try cleaning the throttle body and clearing the code first. Here is a video for a Camry, so you can get an idea:
https://www.youtube.com/wat...

I'm gonna try that right away, thanks.
No, real symptoms to speak of. Maybe a slightly different statup, but not much. Idling seems ok.

Dirty throttle body could also cause a start up hesitation. I hope cleaning the throttle body fix the problem.

Hey, I appreciate the help! I opened it up to look at it. It looks pretty similar to the video. But everything on the near side looks immaculate. On the other side of the flapper it looks black.
There's a screen on one side, so cleaning beyond the flapper would seem pretty limited.
Is that area beyond the flapper what I need to clean?
Thanks

Just clean what you can reach, beyond that you could just spray with throttle body cleaner. Also, once you are done cleaning the throttle body, I recommend using high octane gas for a couple of tanks and a fuel additive.

I'll this and try scanning it afterward too. I'll let you know.
Thanks OBDIITech!

Sometime Sunday, while running errands, the engine light went out.
Hey! I swabbed out a limited area. (I'm gonna figure out a better tool to allow me to safely swab this out).
I also started the high octane, topping off a half tank w/93 premium. Just for good measure, I jumped on the freeway Saturday and drove about 30 or more at around seventy sustained.
I don't do a whole lotta hwy driving, and when I do it's usually right lane with slower traffic. 55-65, short jogs, on and off. Very little time in leftward lanes.
It is a standard trans, and it seems to be running smoother compared to a few days ago. I know this was idle, but overall it seems like smoother acceleration.

Great. Go for another 30 min freeway drive, but try to get the engine to at least 3K rpms. I have fixed many vehicles by just driving at high RPM for about 30 min.

3k got it. I'll run a bit more premium thru it too.
I'm planning to further clean the throttle body, but I wanna figure out a better tool to to swab it with.
It is extremely accessible on this car. Loosen the boot clamp and pull it aside. Right in front.
Thanks again for your guidance. No telling what other rabbit holes I would have got off into! $$$$$

I got this code on a 2004 Sequoia, it runs fine at idle. It misses around 2000 rpm. I was told the problem was the AIC. Is cleaning it a possible solution?

Yes, cleaning could help fix the problem, but you don't have to clean the AIC valve, you have to clean the throttle body. On you vehicle the Idle Speed is controlled by the Electronic Throttle Control System (ETCS) (Commonly called Throttle Body)

Getting this code on my 05 Scion xA. I've cleaned the TB, replaced the IACV, replaced the PCV valve and checked for vacuum leaks. I still have a rough idle and I throw this code every hundred or so miles after I reset it. Any ideas?

Auto help me with this code p0505 toyota corolla 203 car but the car is not moving very well what can I do to fix the problem

The P0505 just mean that the idle is low, but shouldn't cause any driveability problem.

The problem could be the throttle body.

Auto I have another Toyota corolla 203 I got ignition coil code I replaced coil nd fuel pump nd spark plugs nd I cleare maf sensor nd injector the problem is that the car is not moving very well nd Auto if I start the car I remove the maf sensor the Engine stop working mean that the maf sensor is working very well Pls what can I do to fix this issue

Thanks a lot asante sana

The use of higher octane fuel then the manufacturer recommends is not a good idea.The higher octane fuel burns to slow and will cause carbon buildup to happen much faster then with 87 octane fuel.Plus its an additional expense that will not help the vehicle at all.The carbon buildup in the throttle body needs to be cleaned at regular intervals ,the carbon buildup causes the air to 'tumble" into the cylinder causing driveability concerns.When cleaning the throttle body you have to be careful not to use to much cleaner as it can damage the engine if it gets hydrolocked.W hen it's clean the air swirls in to the cylinder mixing with the fuel and lets the mixture burn as designed.i am a retired senior master in gas ,diesel ,hybrids with over 32 years dealership experience .I have seen this concern happen since about 1986 when many cars used ported fuel injectors Fuel injector additives to the fuel tank will help somewhat ,but higher octane fuel will not help one bit .It can cause driveability concerns due to slow or incomplete combustion.

I'm getting this code on a 2018 Tundra 4.6L. I cleaned the throttle body and MAF back in February. I got the code and went into limp mode about once a month for three months. I got the code when idling for about ten minutes. Each time I disconnected the battery and the problem went away. The code is still there. I'm not sure what steps to take now and havent experienced it in months.