Prius (2004-09) :: CEL On - Idle Air Control Sensor
Sep 11, 2013
I have a 2006 Prius with about 152000 miles. About 2 weeks ago we got new tires and an oil change before a long road trip. the next day the Check Engine light came on. I took the car back to Firestone the next day and they were complete jerks about even checking the light for me, but eventually read the code for me P505 Idle Air control sensor. They swore it was a minor error and after some online investigating, I decided that at least we could drive the trip and then get it fixed when we got back.
On the way back home, the light went out. The next few days it was fine, then CEL comes back on, p505 and also 1220 I believe. That same night - the light went back off.
A few more days of no light then BAM saturday midnight Red Triangle of doom (!) and the car stalls.
After a couple of resets, I was able to start the car again and decided to drive home instead of the dealer. On Monday on the way to the dealer, the car stalled and would not come back to life.
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My wifes 2008 prius check engine light just came on. Its the control valve sensor. My question is, does that have any serious impact on safety? I've heard mixed on what this valve does (overheating etc).
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It's been a long week for me and my 2007 Prius. Brought it to the dealer after receiving my first ever CEL. I have 222,000 miles on the vehicle. The a/c was also blowing warm when the CEL came on. They checked that and told me that the compressor was "breaking up." Then they call me back to tell me that my 12V battery died. They asked me if I had problems with starting the vehicle. I said never. Never had any issues with the car in 222,000 miles.
Well, told them to replace the battery (no choice) and the car is 5.5 years old in Florida heat so it was ready to die. Very suspicious that it died while they had the vehicle, but what can I say. Told them to not repair the coolant flow valve or the a/c until I could investigate further on my own. CEL is now off. The a/c is blowing cool again.
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My check engine light has come on twice now and I'm getting a p0505 code, idle air control malfunction. It seems as though there could be a couple causes for this. All my hoses seem tight, so the cheap fix seems out of the question. What could the other causes be, and more importantly, about how much for a shop to fix it. I have a 2006 with 155,000 miles on it.
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The check engine light came on yesterday. 2004 with 115K. Auto Zone read the codes and they are as follows:
Definition:
Idle Air Control Valve control circuit.
Probable Cause:
Open or short circuit condition.
Poor Electrical Connection
Failed IAC motor
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What can be done regarding these faults? P0037 and P0057
Description:
Oxygen Sensor Heater Control Circuit Low (Bank 1, Sensor 2)
Oxygen Sensor Heater Control Circuit Low (Bank 2, Sensor 2)
The catalytic converters have been removed but the fault was present before that anyway. All I want is the VSC function to work again and the lights to go off. I have heard you can put dummy sensors in.
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The check engine light came on in my 05 so took my local shop and they checked the code and said it was the Idle Sensor. They were not able to make the repair. Since then the light went off for a few days then came back on. I now notice the gas motor does not turn off when I stop at a traffic light.
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My 2004/ 4.6L F-150 had misfire issues and rough idle. Since changing the plugs and a COP the idle is better. It seems to stutter a bit at low RPMs around town, but it fine at higher RPMs. What to check next. Also since fixing the misfire and clearing the codes from the computer it won't enable all the emissions monitors. I've drive over 100 miles and the EVAP monitor still isn't on. The truck has about 213K miles on it.
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What is the location of the idle air control valve by telling me where its at or a picture location?
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I have a 2005 f-150 street boss with 79000 mile, and it is shooting off going down the road, and the check engine light is flashing. The first time I started it back up and it would idle fine, but the throttle wouldn't do any thing. After setting about 15 min. I started it up and it ran good. I checked the codes and it had a p2104 Throttle actuator control system forced idle. It happened again with my wife. This time when I checked the codes it had the p2104 and a p2112 throttle actuator control system stuck closed code. What could be the problem, or a troubleshooting guide I could use to try and diagnose it.
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Looking for the answer to this question. This could possibly save me some money.
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The springs on my load leveling sensor keep getting corroded. This time I sprayed them with contact cleaner and then dipped them in dielectric grease so hopefully they won't go bad again, but I fear they might. It looks like there was some kind of anti corrosive treatment on them which was removed when I cleaned them off.
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We took our 2008 Prius in for a check engine light. The dealership said oxygen sensor was faulty. Changed that and had them change the serpentine belt while there due to cracks in the belt. My wife filled up the car the next day ( it took 13 gallons) but gas gauge was not registering a full tank. We drove 67 miles and I decided to pull into a gas station and see how much it would take since the gas gauge was not working properly. It took over 7 gallons.
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I have DTC code P0100 so I got to the camshaft position sensor and noticed oil in the sensor. I can't imagine an electrical sensor is a good place for oil.
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I just got the warning symbol that mine has failed, so I'm thinking of trying the repair myself, too. But I thought I'd ask here: how have people's repairs held up? Have you had to go back and eventually replace it? Is there anything you wish you had done differently when you repaired it?
On a related note, I see that the Toyota Service Bulletin for this problem instructs the mechanic to "Perform the Headlight Leveling ECU Initialization procedure using the SST" and then to "Perform the Headlight Aim Only procedure." This doesn't seem like something an individual can do without specialized equipment / knowledge. Is there a way to do it? Is it unnecessary?
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Yesterday the Check Engine light came on, the code was P1121 Accelerator Pedal Position Sensor Error, Performance/Range. I have not yet had the pedal replaced related to the recall (bad me), is the sensor incorporated in the new assembly or is this separate and I'll need to replace it?
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I have had my tires replaced without having the the tire pressure sensors reinstalled. (one was malfunctioning and I just don't have the available funds to have it/the rest of them replaced, at the current momtn)
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I have a 2006 Prius with a Back Up camera, but I am not sure if it is just a back up camera or if sensors are suppose to make noise if i get close to another car. Is there suppose to be a sensor in the bumper or was it not included?
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My 2007 airbag sensor does not respond to a weight of 20 pounds or more, it continues to read "off". The dealer said the problem is in the female end of the seat belt; however, the seat belt sensor works perfectly. It sounds like the wrong diagnosis to me.
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My 2007 Prius has a stubborn TPMS light. This started about a week and a half ago after I made a few trips from my house which sold to my new apartment. I had the car loaded up with stuff in each of the four trips and maybe had a lot of weight.
I checked the tire pressure after the 3rd trip and it looked fine on all of them. I set them to 35 psi and made one more trip with heavy-ish stuff. I did not check the tire pressure after that last trip but I tried resetting the TPMS light.
I press my foot on the brake pedal and hit the power button twice and then I held the Set button until I saw the TPMS pattern change to three blinks and then it stops. It then continues blinking for the 1 minute duration and stays solid. I tried this a couple of times and waited 3 minutes or so after doing it to see if it made any difference.
Am I likely not trying to reset correctly? I also have techstream on a cd and the tool and a laptop but am not sure if I should set that up and then try to debug using that tool?
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