What does the idle control system code p0505 mean?

If the PCM perceives a problem with the idle air control system, it may set the code P0505. When the vehicle is idling, the throttle plate closes, limiting the air supply to the engine.

What is the IACV-AAC error code p0505?

Error Code P0505 is described as Idle Air Control (IAC) System Malfunction. In simpler terms, this error code is set when the IACV-AAC is not working properly.

What is the error code for idle air control?

Error Code P0505 is described as Idle Air Control (IAC) System Malfunction.

When does the PCM set p0505 on an IAC motor?

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.

What does idle air control code p0505 mean?

1999 Dodge Durango 5.2L V8 with check engine light ON which the code P0505 Idle Air Control System. Sometimes when you are running the engine just shuts off and you have to wait a few minutes for it to turn back on again. Sometimes this happens also when waiting in a red light, etc. It also accelera…

Error Code P0505 is described as Idle Air Control (IAC) System Malfunction. In simpler terms, this error code is set when the IACV-AAC is not working properly.

Why does my Honda Accord have a p0505 code?

When it goes bad, it may affect the engine’s idle speed, which could lead to the PCM issuing a P0505 code. Users have reported P0505 for the following makes: Honda (especially on the Honda Accord and Civic), Nissan, Toyota, Jeep, and Dodge. A faulty idle air control valve can cause code P0505.

Error Code P0505 is described as Idle Air Control (IAC) System Malfunction.

Idle Control System Malfunction What the P0505 code means P0505 is an OBD-II generic code that the engine control module (ECM) determined the engine idle control system is not managing the idle to stay in specification. The idle is too high or goes too low.

What are the symptoms of the p0505 OBD-II trouble code?

What are the symptoms of the P0505 code? The Check Engine Light will be illuminated and the code is set in ECM memory. The engine idle may be lower or higher than specifications. The engine may idle rough if it has a vacuum leak. The engine may stall when coming to a stop. The engine may idle too high at times.

What causes a p0505 code on a PCM?

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.

How much does it cost to diagnose a p0505 code?

The cost of diagnosing the P0505 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour. When is the P0505 code detected? The P0505 code is set when the IACV-AAC valve does not operate properly.

What does the p0505 code mean on a Honda Accord?

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

How is the idle speed of a Honda Honda controlled?

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.

When to use the p0505 idle speed code?

What does the OBD 2 fault code p0505 mean?

OBD II fault code P0505 is defined as “Idle Control System Malfunction”, or sometimes as “Idle speed control (ISC) system –malfunction”, and is set when the PCM (Powertrain Control Module) is unable to control, or maintain the engine idling speed at a specified RPM.

When to set the p0505 engine light on?

The P0505 code is set when the IACV-AAC valve does not operate properly. Engine Light ON (or Service Engine Soon Warning Light) This system automatically controls engine idle speed to a specified level.

If the PCM perceives a problem with the idle air control system, it may set the code P0505. When the vehicle is idling, the throttle plate closes, limiting the air supply to the engine.

What does DTC stand for in idle control system?

Diagnostic trouble code (DTC) P0505 stands for “Idle Control System.” The code may be accompanied by erratic idle speeds that can lead to stalling and other issues. On most older vehicles, the idle control system relies on an idle air control valve (IAC) on or near the throttle body.

What does the idle air control system code mean?

When your car’s primary computer, which is often referred to as the powertrain control module (PCM), perceives a problem with the idle air control system, it will warn the driver and log the appropriate diagnostic trouble code. One code that can come up on the scanner is P0505. What Does the P0505 Code Mean?

What causes the OBD-II code ” p0505 “?

P0505 is an OBD-II generic code that the engine control module (ECM) determined the engine idle control system is not managing the idle to stay in specification. The idle is too high or goes too low. What causes the P0505 code? The idle air control (IAC) valve is carboned up and sticks or has limited control due to the carbon build up.

What are the symptoms of IAC error code p0505?

Some of the common symptoms of this error code involve: Check Engine light is on. Stalling engine, requires hard press of the throttle to idle. Intermittent stalling when throttle is let off. Low engine idle speed, and engine dying at stop signs.

When to use the p0507 code on your car?

The P0507 code is triggered when the Engine Control Module ( ECM) detects that the engine is idling higher than the specified idle rpm range. The standard engine idle is usually between 600-800rpm based on the model of the vehicle.

What causes the idle control system malfunction code?

All our repairs are backed by our 12-month / 12,000-mile warranty. P0505 is an OBD-II generic code that the engine control module (ECM) determined the engine idle control system is not managing the idle to stay in specification. The idle is too high or goes too low. What causes the P0505 code?

What does the p0505 code on a Toyota mean?

Example: If the actual idle RPM varies from the target idle RPM by more than 200* rpm five times during a drive cycle, the ECM will turn on the MIL and will set a DTC. Need more information on how to fix the P0505 TOYOTA code?

What does the p0506 code mean on a car?

Although generic, the specific repair steps may vary depending on make/model. 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.

Can a p0507 code cause a car to die?

P0507 should not prevent the vehicle from driving to a safe location once the malfunction occurs. The idle fluctuations may cause the vehicle to have trouble running but in most cases the engine will not die. What repairs can fix the P0507 code?

Why is the Hyundai p0505 idle air control system not reset?

If the P0505 Hyundai 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.

What does p0505 mean on a PCM?

Note that regardless of slight differences in the wording of various definitions of code P0505, this code always refers to the PCM’s inability to maintain or control the engine idling speed.

Can a trouble code be assigned to an IAC valve?

Diagnosing problems associated with the IAC aren’t simple. There are many other causes that can make a IAC valve appear faulty. In many cases, there may only one or two trouble codes in the ECM/PCM assigned to the IAC, but these trouble codes can set for a variety of reasons.

What is the diagnostic code for idle control system malfunction?

P0505 is a diagnostic trouble code (DTC) for “Idle Control System Malfunction”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

What causes a p0505 problem on a Honda CRV?

When P0505 is triggered, it is typically caused by a stuck idle air control valve, a clogged idle air control valve, or a vacuum leak. There can be other causes as well. Although, they aren’t as prevalent. This particular trouble code lets you know that there is something wrong with the idle air control system, but that’s about it.

What causes an OBD code for p0505?

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 This should be a fairly straightforward diagnosis.

What are the symptoms of idle air control malfunction?

Symptoms may include: 1 MIL (Malfunction Indicator Lamp) illumination. 2 Engine stalls and may not idle unless throttle is depressed. 3 Intermittently stalls when letting off the throttle. 4 Engine may idle too high.

What should I measure before reinstalling my IAC valve?

Before reinstalling the IAC valve, measure the distance that the valve is extended, from the motor housing to the end of the cone. It should not exceed 1-1/8″ (28.6mm), or damage to the valve may occur when reinstalled. You should use a new gasket when possible.

Where is the Idle Air Control ( IAC ) valve?

Ensure your ignition if OFF. Remove the connector to the IAC valve, located right below the Throttle Position Sensor (TPS) on the left side of the throttle body as you are looking at it from the front of the car.

Why is the p0505 IAC code not reset?

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.

What are the symptoms of an idle air control valve ( IAC )?

Another symptom of a potential issue with the idle air control valve (IAC) is; an illuminated Check Engine Light. If the engine control module detects an issue with the idle air control valve circuit or signal; it will set off the Check Engine Light to notify the driver that there’s an issue.

How does idle air control valve p0505 HD work?

Each time the IACV opens or closes to change air quantity, the ECM sends a pulse signal to the motor. A certain voltage signal is issued so that the valve remains at a particular opening. Check with your vehicle’s repair manual for testing parameters. This happens to be a ’97 Nissan Maxima.

What does the code p0505 mean on a Toyota?

P0505 TOYOTA Meaning The idle speed is controlled by the Electronic Throttle Control System (ETCS). The ETCS is composed of the throttle motor, which operates the throttle valve, and the throttle position sensor, which detects the opening angle of the throttle valve.

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