prius p0505 code means what for this hybrid ???

Question

nobody seems to agree what a p0505 means for a prius, 2005

Answer 1

P0505 Idle air control system

The reason why you get this code , The ECM has a target idle, when it varys from the target idle you get P0505.This can be caused by the ETC (eletronic throttle control system ,which operates a throttle valve,to get to the target idle. Another cause of this code can be from vacuum leaks such as vacuum hoses disconnected, or even the MAF (mass air flow) air duct being torn or not properly connected,,