What causes an IAC fault code of 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 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.
Why is my p0505 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.
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 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.
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…
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.
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.
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.